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multiOTP open source
multiOTP open source is a GNU LGPL implementation of a strong two-factor authentication PHP class
multiOTP open source is OATH certified for HOTP/TOTP
(c) 2010-2026 SysCo systemes de communication sa
https://www.multiotp.net/
Current build: 5.10.1.2 (2026-01-05)
Binary download: https://download.multiotp.net/ (including virtual appliance image, docker and full release notes)
Docker container available: docker run -v path/to/multiotp/data:/etc/multiotp -v path/to/freeradius/config:/etc/freeradius -v path/to/multiotp/log:/var/log/multiotp -v path/to/freeradius/log:/var/log/freeradius -p 80:80 -p 443:443 -p 1812:1812/udp -p 1813:1813/udp -d multiotp/multiotp-open-source
Docker volumes
PATH/TO/MULTIOTP/DATA/VOLUME:/etc/multiotp
PATH/TO/FREERADIUS/CONFIG/VOLUME:/etc/freeradius
PATH/TO/MULTIOTP/LOG/VOLUME:/var/log/multiotp
PATH/TO/FREERADIUS/LOG/VOLUME:/var/log/freeradius
A Dockerfile is included in the distribution ZIP file
The multiotp/multiotp-open-source docker is working on Synology devices !
Binary download of the multiOTP open source Credential Provider for Windows 7/8/8.1/10/11/2012(R2)/2016/2019/2022 : https://download.multiotp.net/credential-provider/
Please consider supporting this project by making a donation via PayPal
Visit http://forum.multiotp.net/ for additional support.
The multiOTP package is the lightest package available that provides so many strong authentication functionalities and goodies, and best of all, for anyone that is interested about security issues, it's a fully open source solution!
This package is the result of a bunch of work. If you are happy using this package, [Donation] are always welcome to support this project. Please check https://www.multiotp.net/ and you will find the magic button ;-)
If you need some specific features in the open source edition of multiOTP, please contact us in order to discuss about a sponsorship in order to prioritize your needs.
You can also have a look on on https://www.multiOTP.com for multiOTP Pro and multiOTP Enterprise, which are commercial editions of ready to use virtual appliances including more features like:
- Full Web GUI interface
- Automated provisioning of new account (based on Active Directory)
- High Availability master-slave support (Enterprise Edition)
- Web API support (Enterprise Edition)
- free virtual appliances available, including a free lifetime one user licence
- online demo of the full Web GUI interface
- ...
The multiOTP class supports currently the following algorithms and RFC's:
- RFC1994 CHAP (Challenge Handshake Authentication Protocol)
- RFC2433 MS-CHAP (Microsoft PPP CHAP Extensions)
- RFC2487 SMTP Service Extension for Secure SMTP over TLS
- RFC2759 MS-CHAPv2 (Microsoft PPP CHAP Extensions, Version 2)
- RFC2821 SMTP (Simple Mail Transfer Protocol)
- RFC4226 OATH/HOTP (HOTP: An HMAC-Based One-Time Password Algorithm)
- RFC5424 Syslog Protocol (client)
- RFC6030 PSKC (Additional Portable Symmetric Key Container Algorithm Profiles)
- RFC6238 OATH/TOTP (TOTP: Time-Based One-Time Password Algorithm)
- Yubico OTP (http://yubico.com/yubikey)
- mOTP (http://motp.sourceforge.net)
- OATH/HOTP or OATH/TOTP, base32/hex/raw seed, QRcode provisioning (FreeOTP, Google Authenticator, ...)
- SMS tokens (using Afilnet, aspsms, Clickatell, eCall, IntelliSMS, Nexmo, NowSMS, SMSEagle, SMSGateway, Spryng, Swisscom, Telnyx, any custom provider, your own script)
- TAN (emergency scratch passwords)
This package was initially published here : http://syscoal.users.phpclasses.org/package/6373.html For more PHP classes, have a look on PHPclasses.org, where a lot of authors are sharing their classes for free.
TABLE OF CONTENTS
- Donations and sponsoring
- Wishlist for future releases
- How can I upgrade from a previous version ?
- What's new in the releases
- Change Log of released version
- Content of the package
- Typical tree of a working Linux installation
- How can I create myself the different versions ?
- When and how can I use this package ?
- What is the prefix PIN option ?
- How the lockout of an account is working ?
- How to self-unlock an account ?
- How to debug ?
- How to install the multiOTP web service under Windows ?
- How to install the multiOTP radius server under Windows ?
- Configuring multiOTP with TekRADIUS or TekRADIUS LT under Windows
- How to install the multiOTP web service under Linux ?
- Configuring multiOTP with FreeRADIUS 2.x under Linux
- Configuring multiOTP with FreeRADIUS 3.x under Linux
- How to configure multiOTP to synchronized the users from an Active Directory ?
- How to configure multiOTP to synchronized the users from a standard LDAP ?
- How to configure multiOTP to use the client/server feature ?
- How to build a Raspberry Pi strong authentication server ?
- How to install a local only strong authentication on a Windows machine ?
- How to install a centralized 2FA server for Windows desktops or RDP login ?
- Adding 2FA with multiOTP to the Remote Desktop Web Access (RDWeb) on Windows
- Same Windows generic account with multiple two-factor authentication accounts
- Using multiOTP on Linux for SSH login
- LDAP filter customization
- OpenSSL options for LDAPS
- Compatible clients applications and devices
- External packages used
- multiOTP PHP class documentation
- multiOTP command line tool
DONATIONS AND SPONSORING
You can support our multiOTP open source project with donations and sponsoring. Sponsorships are crucial for ongoing and future development of the project! If you'd like to support our work, then consider making a donation, any support is always welcome even if it's as low as $1! You can also sponsor the development of a specific feature. Please contact us in order to discuss the detail of the implementation.
HOW CAN I UPGRADE FROM A PREVIOUS VERSION ?
!!! Be careful when you upgrade your multiOTP open source Virtual Appliance !!! The multiOTP open source Virtual Appliance is using the files in raspberry/boot-part/multiotp-tree/usr/local/bin/multiotp, with config and backend folders defined to be located in /etc/multiotp/
If you are currently using the multiOTP open source Virtual Appliance, you can upgrade
the multiOTP version by copying the extracted content of the folder and subfolders from
raspberry/boot-part/multiotp-tree/usr/local/bin/multiotp to /usr/local/bin/multiotp
An update through the web interface should be available in the future
If you are currently using the multiOTP open source linux files, you can upgrade your installation by copying the extracted content of the folder and subfolders from linux to your current multiOTP folder
!!! since 5.0.4.6 under Linux, the config, devices, groups, tokens and users folders are now always located in /etc/multiotp/. Please be sure to make the move when you are upgrading !!! (before 5.0.4.6, theses subfolders where located just below the main multiOTP folder)
If you are currently using the multiOTP open source windows files, you can upgrade your installation by copying the extracted content of the folder and subfolders from windows to your current multiOTP folder
WHAT'S NEW IN THIS 5.10.x RELEASE
- New Proxmox, OVA and Hyper-V appliances available (version 013, based on Debian 13)
- Push support with the multiOTP token App, available for free with Enterprise subscription
CHANGE LOG OF RELEASED VERSIONS
2026-01-05 5.10.1.2 FIX: Locked and delayed status handled before push status
2025-12-23 5.10.1.1 ENH: New SendEmail implementation with internal smtp stack (using smtp parameters)
ENH: Better Docker integration
2025-12-18 5.10.0.7 FIX: PostgreSQL fix for the fields in the log table
FIX: Warning issue when using the docker version (old temp folder removed)
ENH: New options: "don't auto disable" and "don't auto enable" LDAP accounts
ENH: New SMS library integration and new SMSEagle v2 API support
ENH: New API functions for the forthcoming VueJS 3.x interface (Q1 2026)
ENH: New QRcode enrollment for mOTP, compatible with the free multiOTP token App
ENH: Updated log functions to enhance the log information in the next releases
ENH: Cleaned logs for unnecessary information
ENH: New download page for the multiOTP family
ENH: New multiOTP token App
ENH: Additional constants in the library
2025-11-04 5.10.0.4 ENH: Option to disable automatic activation/deactivation of user during LDAP synchronisation
2025-11-04 5.10.0.3 FIX: MultiotpXmlParser class adapted to be 100% compatible with the legacy version
ENH: Embedded Windows PHP edition updated to version 8.4.14
ENH: The default radius secret is now set to myfirstpass for every device (0.0.0.0/0)
2025-10-31 5.10.0.2 FIX: /boot/newvm.sh INIT no more called by RUN in the Dockerfile
ENH: Updated Docker format
2025-10-31 5.10.0.1 FIX: Warning was displayed in some cases when using GetSysLogServer() method
FIX: Notice was displayed in some cases when using the sms library (MultiotpSms)
FIX: Implementation check URI no more enabled by default in Windows source
FIX: Syslog server handling was sometimes generating warnings
FIX: Better initialization of the config_data array for FreeBSD
ENH: New rewritten MultiotpXmlParser class
ENH: New Proxmox, OVA and Hyper-V appliances available (version 013, based on Debian 13)
ENH: Initial Push support with the multiOTP token App, needs multiOTP-gateway-service
ENH: multiOTP Credential Provider enhanced support
ENH: URI only reacting on / to avoid intensive hits
ENH: Embedded Windows PHP edition updated to version 8.4.13
ENH: Embedded Windows nginx edition updated to version 1.29.2
2025-10-16 5.9.9.3 ENH: Debian Trixie 13 support
2025-01-20 5.9.9.1 FIX: Windows backup temp folder is now the default system temp folder
FIX: Adding -sync-delete-retention-days parameter doesn't return missing parameters error
FIX: Case sensitive issue has been fixed with MSCHAPv2 authentication (thanks Alexey)
FIX: Case sensitive issue has been fixed during FastCreateUser process
ENH: Created users are trimmed to avoid bad space prefix/suffix during copy/paste
ENH: multiOTP Credential Provider enhanced support
ENH: New default-2fa-digits command line option to set the default amount of OTP digits
ENH: PHP 8.4.x deprecated code cleaned (xml_set_object removed)
2025-01-10 5.9.8.3 FIX: {MultiotpUserDisplayName} tag usage in templates (was not replaced in the QRcode)
ENH: New Message-Authenticator requirement support for FortiGate v7.2.10+, v7.4.5+ and v7.6.1+
ENH: New SetCurrentUserSid function for new Credential Provider -usersid option
ENH: Embedded Windows PHP edition updated to version 8.3.15
ENH: Embedded Windows nginx edition updated to version 1.27.3
2024-08-26 5.9.8.0 FIX: Database backend setup and initialization was not working well with some PHP version
ENH: New option to force writing logs only in file (even if the backend is a database)
ENH: Spryng SMS provider support
ENH: PHP 8.2.x deprecated code cleaned (null for string parameters)
2024-05-03 5.9.7.2 FIX: without2fa token can be now correctly converted to TOTP with default 30 seconds time interval
FIX: Without2fa tokens with prefix pin where not working with CHAP/MSCHAP/MSCHAPv2
FIX: Windows: radiusd.conf and clients.conf files removed from the distribution
(they are created automatically when installing the services using radius_install.cmd)
ENH: Windows: -debug option removed from the radius module launcher
ENH: By design, Credential Provider check request don't wait any prefix. This behavior can now be overwrited.
2023-12-03 5.9.7.1 FIX: Command line number of parameters detection corrected
ENH: It's now possible to define the number of digits for new created PIN
(multiotp -config default-pin-digits=n)
ENH: It's now possible to generate the HTML provisioning file by command line
(multiotp -htmlinfo username /full/path/to/username.html or
multiotp -htmlinfo /full/path/to/folder/ to generate files for all users)
ENH: Embedded Windows nginx edition updated to version 1.25.3
ENH: Embedded Windows internal tools updated (wget 1.21.4 and fart 1.99d)
ENH: Embedded Windows freeradius is now launched using NSSM (instead of SRVANY)
2023-11-23 5.9.7.0 FIX: Better Windows nginx configuration support (path backslashes replaced by slashes)
ENH: Embedded Windows nginx edition updated to version 1.24.0
ENH: Embedded Windows PHP edition updated to version 8.2.13
ENH: Better hardware/model detection
ENH: Documentation enhanced with instructions for RDWeb on Windows
ENH: Upgrade of some internal tools
2023-10-12 5.9.6.9 ENH: Better internal configuration organization
2023-10-11 5.9.6.8 ENH: Debian Bookworm 12 support
2023-09-22 5.9.6.7 ENH: Documentation updated for "Configuring multiOTP with FreeRADIUS 3.x under Linux"
ENH: Without2FA tokens cannot be used for multi_account connection
ENH: Added documentation for Linux SSH login with multiOTP using PAM
2023-08-09 5.9.6.6 FIX: Prefix PIN information was sometimes missing on the provisioning info
ENH: New Raspberry Pi distribution binary
2023-07-07 5.9.6.5 FIX: Better Raspberry Pi support
FIX: ShowLog() method (used by -showlog option) was buggy
2023-05-10 5.9.6.1 FIX: Automated concurrent access for the same user with "Without2FA" token could corrupt the user file
FIX: Any files backend operation is now secured with explicit lock mechanism
ENH: Template updated to print bigger QRcode for "MOTP-XML" tokens
2023-05-04 5.9.5.7 FIX: Weekly anonymized stats date was not always updated
FIX: Adding -tokenslist command in CLI mode (was in the documentation, but was missing)
FIX: Remove a debug line displaying sometimes "COMMDN:$command\n";
FIX: Some minor PHP notice corrections
FIX: Template updated to display correct information for "Without2FA" tokens
FIX: Enhanced backup process, some configuration may be missing in the backup depending the initial firmware version
ENH: Adding on-premises smsgateway (https://github.com/multiOTP/SMSGateway) as a new SMS provider
ENH: Better warning messages when CheckUserLdapPassword failed
ENH: Embedded documentation enhanced
2023-01-19 5.9.5.5 ENH: LDAP filter can be customized using SetLdapFilter() method
({cn_identifier}, {username}, and {groups_filtering} placeholders are supported)
ENH: Full PHP 8.x support (tested with 8.2.1 and 8.1.14),
with backward compatibility support (7.x, >=5.4.x)
ENH: Enhanced AD/LDAP paging support
2022-12-31 5.9.5.3 ENH: Embedded Windows nginx edition updated to version 1.22.1
ENH: Embedded Windows PHP edition updated to version 8.2.0
ENH: PHP 8.2.x deprecated code cleaned (nullable trim, dynamic properties, PostgreSQL command without connection argument)
ENH: Enhanced sms library (MultiotpSms), new eCall API implementation, new ASPSMS API implementation
ENH: Better MySQL error handling
ENH: Better PostgreSQL error handling
2022-11-11 5.9.5.1 FIX: Windows nginx subfolders are now protected
ENH: It's now possible to define a special AD/LDAP group to attribute "Without2FA" token to specific users
ENH: Default username and password are not displayed anymore if default password has been changed
2022-11-04 5.9.4.0 ENH: Enhanced multiOTP Credential Provider
2022-10-21 5.9.3.1 FIX: Better special characters support in username and password
ENH: The locked accounts list now also list the temporary delayed accounts
ENH: Accounts with Without2FA tokens can now also be stored in cache
2022-08-10 5.9.2.1 ENH: Enhanced Without2FA support, bypassing the 2FA in Credential Provider
ENH: Command -iswithout2fa added as a CLI option (to check if a token is needed)
2022-06-17 5.9.1.0 ENH: Enhanced multiOTP Credential Provider
ENH: Additional CLI option -nt-key-only added
2022-05-26 5.9.0.3 FIX: Issue with /run/php when a Docker container is restarted
FIX: {MultiOtpVersion} is now correctly replaced in scratchtemplate.html
ENH: {MultiotpUserDisplayName} tag (AD/LDAP DisplayName) can be used in templates
2022-05-20 5.9.0.2 FIX: User account containing octal encoded ISO characters are now also converted to UTF
2022-05-18 5.9.0.1 FIX: Set specific flags to run Perl scripts from FreeRADIUS
2022-05-18 5.9.0.0 FIX: User account containing special ISO characters are now also converted to UTF
ENH: New Hyper-V and OVA appliances available (version 011, based on Debian 11)
ENH: Scratchlist can be generated from the Web GUI
2022-05-08 5.8.8.4 ENH: Better docker support (also for Synology)
2022-05-08 5.8.8.1 ENH: Add Raspberry Pi Bullseye 11.0 support
2022-04-28 5.8.7.0 ENH: PHP 7.4 deprecated code cleaned
ENH: Embedded Windows nginx edition updated to version 1.21.6
ENH: Embedded Windows PHP edition updated to version 7.4.29
ENH: New MariaDB/MySQL indexes handling during schema creation and schema updates
ENH: Enhanced internal tests
2022-04-14 5.8.6.1 FIX: Token "Without2FA" where not working all time with LDAP users
ENH: Telnyx SMS provider support
ENH: PHP 7.4 deprecated code cleaned
ENH: Email token is now supported for Credential Provider
ENH: In CLI check, if username doesn't exist, it try automatically a shorter domain name step by step
2022-01-14 5.8.5.1 ENH: Embedded Windows nginx edition updated to version 1.21.4
2021-11-18 5.8.3.2 ENH: Enhanced multiOTP Credential Provider support
2021-09-14 5.8.3.0 ENH: New VM support (Debian Bullseye 11.0, PHP 7.4, FreeRADIUS 3.0.21, Nginx 1.18.0)
ENH: Removed multicast support on the network card
2021-08-19 5.8.2.9 ENH: Added compatibility with new multiOTP Credential Provider (5.8.2 and further)
2021-06-04 5.8.2.4 ENH: Detect Credential Provider Request and force the no prefix option
2021-05-19 5.8.2.3 FIX: Dockerfile updated (php-bcmath added)
2021-04-08 5.8.2.1 ENH: eDirectory LDAP server support
2021-03-25 5.8.1.9 FIX: Cookie privacy (httponly and secure) backported to previous virtual appliances
ENH: Cookie privacy (httponly and secure) are now handled in the application directly
ENH: Weak SSL ciphers disabled
ENH: Better Docker support
ENH: Better log handling
2021-03-21 5.8.1.2 ENH: Test (1 == GetUserPrefixPin()) replaced by IsUserPrefixPin()
2021-03-14 5.8.1.1 FIX: In some cases, the HOTP/TOTP was not well computed
2021-03-21 5.8.1.2 FIX: Dockerfile corrected, apt-offline removed
ENH: Enhanced log file handling
2021-03-14 5.8.1.1 FIX: In some cases, the HOTP/TOTP was not well computed
2021-02-12 5.8.1.0 ENH: Enhanced Web GUI accounts list (green=AD/LDAP synced, orange = delayed, red=locked)
2020-12-11 5.8.0.7 ENH: -sync-delete-retention-days= option is set by default to 30 days
2020-12-11 5.8.0.6 ENH: VM version 010 support (Debian Buster 10.5, PHP 7.3, FreeRADIUS 3.0.17)
ENH: MySQL optimization
ENH: Enhanced windows command line scripts (automatic administrator level)
2020-09-20 5.8.0.2 ENH: New -sync-delete-retention-days= option in order to purge inexistent AD/LDAP users
(SetSyncDeleteRetentionDays and GetSyncDeleteRetentionDays method)
2020-08-31 5.8.0.0 FIX: Too many ReadConfigData loop during initialization
FIX: Better unicode handling, multibyte fonctions also for mb_substr()
FIX: A device file was searched with the name of the FreeRADIUS Client-Shortname
ENH: Raspberry Pi 4B support
ENH: New unified distribution
ENH: Debian Buster 10.5 support
ENH: Enhanced PHP 7.3 support
ENH: Better mysqli support for alternate connection port
2019-10-23 5.6.1.5 FIX: Separated configuration/statistics storage handling
ENH: Generic web based SMS provider support
2019-10-22 5.6.1.3 ENH: Better PHP 7.3 support
ENH: Base32 encoder/decoder new implementation
ENH: During WriteConfigData, loop on the current values, and check with the old values
ENH: Enhanced internal tests
ENH: Debian Buster 10 support
2019-09-02 5.5.0.3 ENH: Give an info if time based token is probably out of sync (in a window 10 time bigger)
(for example for hardware tokens not used for a long time)
ENH: Modifications for Debian 10.x (buster) binary images support (64 bits)
2019-03-29 5.4.1.8 ENH: Enhanced error messages, more log information
ENH: In debug mode, display an error if logfile cannot be written
ENH: Global Access-Challenge support
2019-01-30 5.4.1.7 FIX: IsTemporaryBadServer function (thanks to brownowski on GitHub)
ENH: New QRcode library used (without external files dependency)
ENH: New Raspberry images support for Raspberry Pi 1B/1B+/2B/3B/3B+
2019-01-25 5.4.1.6 FIX: If any, clean specific NTP DHCP option at every reboot
2019-01-18 5.4.1.4 ENH: Modifications for Debian 9.x (stretch) binary images support
2019-01-07 5.4.1.1 ENH: Raspberry Pi 3B+ support
ENH: Debian Strech 9 support
2018-11-13 5.4.0.2 ENH: Import of PSKC definition files with binary decoding key file
ENH: Added Swisscom LA REST, Afilnet, Clickatell2, eCall, Nexmo, NowSMS, SMSEagle and custom SMS provider support
2018-09-14 5.4.0.1 FIX: Values of SetUserCacheLevel(), GetUserCacheLevel(), SetUserCacheLifetime()
and GetUserCacheLifetime() are not correctly initialized
ENH: Enigma Virtual Box updated to version 9.10 (to create the special all-in-one-file)
ENH: PHP 7.1.22 used in the one single file (only PHP < 7.2 is still compatible with Windows 7/2008)
ENH: Compatibility mode to Windows 7 automatically added for radiusd.exe during radius service installation
ENH: PHP display error flag is now set to off by default in the webservice under Windows
2018-08-26 5.3.0.3 FIX: Better without2FA algorithm support
FIX: Restore configuration has been fixed in the command line edition
ENH: Cache-level and cache-lifetime can be set separately for each user
ENH: In client/server mode, only unencrypted user attributes are sent back to a successful client request
ENH: Enhanced monitoring
2018-08-22 5.3.0.1 ENH: Monitoring fields added (create_host, create_time, last_update_host)
2018-08-21 5.3.0.0 FIX: stream_timeout is no more pushed to 20 seconds in PostHttpDataXmlRequest if we are in Credential Provider mode
FIX: RemoveTokenFromUser() method corrected. Token administrative information corrected,
new software token created for the user
ENH: Multiple semicolon separated "Users DN" supported for AD/LDAP synchronization
ENH: Additional debug messages for disabled users during synchronization
ENH: Enigma Virtual Box updated to version 9.00 (to create the special all-in-one-file)
ENH: PHP 7.2.8 used in the one single file
ENH: without2FA algorithm now available (useful to do 2FA only for some accounts and not for others)
2018-07-16 5.2.0.2 ENH: Active Directory nested groups support
(user1 in groupA, groupA in groupB, setting the OTP groups to "groupB" will add user1)
ENH: Enhanced AD/LDAP support for huge Microsoft Active Directory
ENH: "Base DN" and "Users DN" are now two different parameters ("Users DN" optional)
2018-03-20 5.1.1.2 FIX: typo in the source code of the command line option for ldap-pwd and prefix-pin
ENH: Initial public Dockerfile release
2018-03-05 5.1.0.8 FIX: Enigma Virtual Box updated to version 8.10 (to create the special all-in-one-file)
2018-02-27 5.1.0.7 FIX: [Receive an OTP by SMS] link is now fixed for Windows 10
2018-02-26 5.1.0.6 ENH: Credential Provider registry entries are now always used when calling multiOTP.exe
2018-02-21 5.1.0.5 FIX: To avoid virus false positive alert, multiOTP.exe is NO more packaged in one single file
using Enigma, a php folder is now included in the multiOTP folder
FIX: multiOTPOptions registry entry is now useless
2018-02-21 5.1.0.4 ENH: Credential Provider registry entries are used if available
2018-02-19 5.1.0.3 FIX: Better unicode handling, multibyte fonctions used when needed (mb_strtolower(), ...)
ENH: Expired AD/LDAP password support
ENH: multiOTP Credential Provider (for Windows) improvements
(user@domain.name UPN support, default domain name supported and displayed, SMS request link)
ENH: "force_no_prefix_pin" option for devices (for example if the device is a
computer with multiOTP credential Provider and AD/LDAP synced password)
2017-11-04 5.0.5.6 Better FreeRADIUS 3.x documentation
New radius tag prefix configuration option
New multiple groups device option
Some notice corrections (if the array element doesn't exist)
A user cannot be created with a leading backslash (fixed in FastCreateUser and CreateUserFromToken)
2017-09-29 5.0.5.2 The proposed mOTP generator for Android/iOS is now OTP Authenticator
New QRCode provisioning format for mOTP (compatible with OTP Authenticator)
2017-09-08 5.0.5.0 NirSoft nircmd.exe tool removed from the distribution (false virus detection)
Multiple URLs separator for client/server config is still ";", but [space] and "," are accepted
New developer mode for some specific detailed logs during development process only
2017-07-07 5.0.4.9 New methods: SetLdapTlsReqcert, GetLdapTlsReqcert, SetLdapTlsCipherSuite, GetLdapTlsCipherSuite
to change config parameters, instead of hard coded parameters (for SSL/TLS LDAP connection)
Fixed too much detailed information in the log when trying
to detect a token serial number for self-registration
2017-06-06 5.0.4.8 Fixed SSL/TLS LDAP failed connection for PHP 7.x (GnuTLS TLS1.2 restriction removed for PHP 7.x)
2017-06-02 5.0.4.6 Fixed a typo in the ReadCacheData method for PostgreSQL support (thanks Frank for the feedback)
Fixed default folder detection for the multiotp.exe file
Important, under Linux, the config, devices, groups, tokens and users folders are now always
located in /etc/multiotp/. Please be sure to make the move when you are upgrading
Cleaned some ugly PHP warnings when the backend is not initialized
2017-05-29 5.0.4.5 Restore configuration added in Web GUI
Fixed configuration file directory under Windows in Web GUI
Fixed path with spaces handling for the command line edition (thanks Scott for the feedback)
PostgreSQL support, based on source code provided by Frank van der Aa
2017-05-16 5.0.4.4 GetList() is now sorted with files backend
A replay during a defined delay (default 60 seconds) of the previous refused password is rejected,
but the error counter is not incremented (SetLastFailedWhiteDelay and GetLastFailedWhiteDelay)
A user cannot be created with a leading backslash
2017-02-23 5.0.3.7 Group names are now always trimed to avoid blank spaces
SetLinuxFolderMode() and GetLinuxFolderMode() methods added
2017-02-21 5.0.3.6 GetDelayedUsersList() method added
GetList() return now a sorted list
RestoreConfiguration() method updated, system configuration data can be ignored
SetUserTokenSeed() and SetTokenSeed() methods accept now also base32 and raw binary
The full windows package has been fixed and cleaned
2017-02-03 5.0.3.5 GetUserInfo method added
ImportTokensFromCsv fixed when the file is not readable
Fix possible endless loop when opening a file that exists but without the right to read it
2017-01-26 5.0.3.4 It's now possible to do several commands at once with the CLI edition
New overwrite_request_ldap_pwd option (enabled by default).
If overwrite is enabled, default_request_ldap_pwd value is forced during synchronization
Multiple groups per user is now supported (not all devices support multiple groups).
(radius reply attributor has been changed to += by default)
multiotp -delete-token command has been added in the CLI
-lock and -unlock command return now 19 (instead of 99) in the CLI
Better support of DialinIp functions in command line usage
New LDAP cache management to support huge AD/LDAP, with cache on disk (system temporary folder)
New PurgeLockFolder() and PurgeLdapCacheFolder() method
The default proposed TOTP/HOTP generator for Android/iOS is now FreeOTP Authenticator
Better Eastern European languages support
Multiple purpose tokens provisioning format PSKCV10,
like Gemalto e3050cL and t1050 tokens, is now supported.
Various bug fixes and enhancements when using the proxy mode.
2016-11-14 5.0.3.0 Log messages are better categorized
The user dialin IP address is synchronized from the
Active Directory msRADIUSFramedIPAddress attribute
New IP dialin methods : SetUserDialinIpAddress(), SetUserDialinIpMask(),
SetDefaultDialinIpMask(), GetUserDialinIpAddress(), GetUserDialinIpMask(),
GetDefaultDialinIpMask()
If the user dialin IP address is defined, Framed-IP-Address
and Framed-IP-Mask are delivered in the RADIUS answer
Enhanced token importation process (to support binary encryption key
in hexadecimal 0xAABBCC format)
2016-11-04 5.0.2.6 Better log message for automatically or manually created objects
External packages update
New GetUserLastLogin() and SetUserLastLogin() methods
Backup configuration file can now be restored in commercial
version without any changes
2016-10-16 5.0.2.5 Better SSL support using context if available (for PHP >= 5.3)
New methods SetTouchFolder(), GetTouchFolder(), TouchFolder(),
FolderTouched() to offer asynchronous implementation capabilities
New methods added for SOAP service
Weekly anonymized stats added (can be disabled).
Anonymized stats include the following information:
backend type, AD/LDAP used or not, OS version, PHP version,
library version, number of accounts defined, number of tokens defined.
They are sent on the stats.multiotp.net FQDN which is hosted in Switzerland.
It's possible to select a specific LDAP/AD attribute used as the synchronised
account name: SetLdapSyncedUserAttribute(), GetLdapSyncedUserAttribute()
An account can be tested from the dashboard
Unified configuration backup and restore format (BackupConfiguration)
Better support of MS-CHAPv2 in the provided appliances
Cached requests supported (cached during a specific amount of time,
useful for WebDAV authentication) (device option cache_result_enabled)
A try on the previous password is rejected,
but the error counter is not incremented
ForceNoDisplayLog() method added to disable log on display in server mode
XML parsing error are more verbose
XmlServer is now sending XML response with the specific Content-type: text/xml
YubicoOTP private id check is now implemented
SSL AD/LDAP also supported with Windows 2012 server
SyncLdapUsers is now using a semaphore file to avoid
concurrent process for large AD/LDAP sync
(tested with 1'000 groups, 100'000 users, 1'000 users in the LDAP sync group)
AD/LDAP additional log information
New GetNetworkInfo and SetNetworkInfo methods
Special chars support enhanced in LDAP class (as described in RFC4515)
The default ldap_group_cn_identifier is now cn instead of sAMAccountName
The first matching group defined in AD/LDAP group(s) filtering is now
defined for the user (this group is returned as the Filter-Id (11) option
in a successful RADIUS answer)
Enhanced SMS support for Clickatell, SSL is now also working
Bug fix concerning QRcode generation for mOTP
Code fixes
New AssignTokenToUser() and RemoveTokenFromUser() methods
2015-07-18 4.3.2.6 New ResetTempUserArray method (as we want to move away from global array in the near future)
For _user_data, default values are now extracted from the definition array
QRcode generation for mOTP (motp://[SITENAME]:[USERNAME]?secret=[SECRET-KEY])
2015-07-15 4.3.2.5 Calling multiotp CLI without parameter returns now error code 30 (instead of 19)
2015-06-24 4.3.2.4 multi_account automatic support (multi_account is activated when
"multi_account" is set as description of the account (also with AD/LDAP sync)
Scratch password generation (UTF)
2015-06-10 4.3.2.3 Enhancements for the Dev(Talks): demo
2015-06-09 4.3.2.2 Empty users are refused
TOTP time interval of imported tokens is set by default to 30s
More accuracy in the logged information
Refactoring backend methods, sharing code
Refactoring some ugly parts (!)
Documentation update concerning lockout functions and prefix PIN prefix
Special token entry 'Sms' is now also accepted, like 'SMS' or 'sms', to send an SMS token
The minus (-) in the prefix password is now supported (it was filtered to fix some rare user issues)
The autoresync option is now enabled by default
Resync during authentication (autoresync) is now better handled in the class directly
The server_cache_level is now set to 1 by default (instead of 0)
If the token length is not correct, it's now written in the log
Some LDAP messages are now only logged in debug mode
2014-12-15 4.3.1.1 Better generic LDAP support
- description sync done in the following order: description, gecos, displayName
- memberOf is not always implemented, alternative method to sync users based on group names.
- disabled account synchronization using shadowExpire or sambaAcctFlags
Better Active Directory support
- accountExpires is now supported for synchronization
- ms-DS-User-Account-Control-Computed (to handle locked out accounts, available since Windows 2003)
2014-12-09 4.3.1.0 MULTIOTP_PATH environment variable support
CLI proxy added to speed up the command line
Scratch password need also the prefix PIN if it's activated
OTP with integrated serial numbers better supported (in PAP)
Generic LDAP support (instead of Microsoft AD support only)
Raspberry Pi edition has now a special proxy to speed up the command line
2014-11-04 4.3.0.0 It's now possible to use the AD/LDAP password instead of the PIN code
Yubico OTP support, including keys import using the log file in Traditional format
qrcode() stub enhanced to check if the required folders are available
SyncLdapUsers completely redesigned
- no more complete array in memory
- MultiotpAdLdap class also enhanced accordingly
- cached group_cn requests
- cached recursive_groups requests
- new "by element" functions
Demo mode support
Bug fix concerning the NT_KEY generation with enabled prefix PIN (thanks Adam)
ResyncToken() method added (instead of using CheckToken() method for synchronization)
2014-06-12 4.2.4.3 Bug fix concerning aspsms provider
2014-04-13 4.2.4.2 XML parsing consolidation, one library for the whole project
Fixed bug concerning tokens CSV import
2014-04-06 4.2.4.1 Fixed bug concerning LDAP handling
NT_KEY support added (for FreeRADIUS further handling)
Tokens CSV import (serial_number;manufacturer;algorithm;seed;digits;interval_or_event)
When a user is deleted, the token(s) attributed to this user is/are unassigned
New option -user-info added
2014-03-30 4.2.4 Fixed bug concerning MySQL handling and mysqli support added
Enhanced SetAttributesToEncrypt function
New implementation fo some external classes
Generated QRcode are better
LOT of new QA tests, more than 60 different tests (including PHP class and command line versions)
Enhanced documentation
2014-03-13 4.2.3 Fixed bug for clear text password going back to TekRADIUS (PIN was always prefixed for mOTP)
Fixed bug when client/server mode is activated, but not working well
2014-03-03 4.2.2 Better AD/LDAP integration
Web GUI is now complete for a simple usage, including hardware tokens import
Better template for provisioning information
Some values can now go back to TekRADIUS
If activated, prefix PIN is now also requested for SMS authentication
More information in the logs
Better list of the external packages used
2014-02-14 4.2.1 AD/LDAP is now fully supported in order to create users based on AD/LDAP content
(with groups filtering)
2014-02-07 4.2.0 MS-CHAP and MS-CHAPv2 are now supported
(md4 implementation added for PHP backward compatibility)
Enhanced LDAP configuration structure
Fixed bug during token attribution to users
(a "no name" token appeared sometimes)
2014-01-20 4.1.1 md5.js was missing in the public distribution
Alternate json_encode function is defined if the JSON extension is not loaded
Fixed possible image functions incompatibilities with some PHP versions
during QRcode generation
As suggested by Sylvain, token resync doesn't need prefix PIN anymore
(but still accepted)
More verbosity in the logs in debug mode
Specific parameters order in QRCode for Microsoft Authenticator support
(thanks to Erik Nylund)
2013-12-23 4.1.0 The open source edition of multiOTP is OATH certified ;-)
(that means full compatibility with any OATH tokens and encrypted PSKC import support)
Raspberry Pi nanocomputer is now fully supported
Basic web interface
Self-registration of hardware tokens is now possible
PAP mode: if self-registration is enabled, a user can register a non-attributed token by typing
[serial number][OTP] instead of [OTP]. If user has a prefix PIN, type [serial number][PIN][OTP])
PAP/CHAP mode: if self-registration is enabled, a user can register a non-attributed token by typing
[username:serialnumber] as the username and the [OTP] in the password field.
If user has a prefix PIN, [PIN][OTP] must be typed in the password field
Automatic resync/unlock option during authentication (PAP only). When the autoresync option
is enabled, any user can resync his token by typing [OTP1] [OTP2] in the password field.
If user has a prefix PIN, he must type [PIN][OTP1] [PIN][OTP2].
Tokens with less than 3 characters are not accepted anymore in CheckToken()
Default Linux file mode is now set by default (0666 for created and changed files)
Error 28 is returned if the file is not writable, even after a successful login
Added GetUsersCount() function
Added GenerateSmsToken() function
Added Groups management functions
Added Tokens assignation functions
Added SetUserActivated(1|0) and GetUserActivated() function
Added SetUserSynchronized(1|0) and GetUserSynchronized() function
scratch_passwords is now a text field in the database
The third parameter of the Decrypt method is now mandatory
Some modifications in order to correctly handle the class methods
2013-09-22 4.0.9 Fixed a bug in GetUserScratchPasswordsArray. If a user had no scratch password
and the implementation accepted blank password, it was accepted
Fixed a bug where scratch passwords generation used odd numbers of characters for hex2bin()
2013-08-30 4.0.7 GetScriptFolder() was still buggy sometimes, thanks Frank for the feedback
File mode of the created QRcode file is also changed based on GetLinuxFileMode()
'sms' as the password to request an SMS token can now be sent in lower or uppercase
Added a description attribute for the tokens
2013-08-25 4.0.6 base32_encode() is now RFC compliant with uppercases
GetUserTokenQrCode() and GetTokenQrCode() where buggy
GetScriptFolder() use now __FILE__ if the full path is included
When doing a check in the CLI header, @... is automatically removed from the
username if the user doesn't exist, and the check is done on the clean name
Added a lot of tests to enhance release quality
2013-08-21 4.0.5 Fixed the check of the cache lifetime
Added a temporary server blacklist during the same instances
Default server timeout is now set to 1 second
2013-08-20 4.0.4 Added an optional group attribute for the user
(which will be send with the Radius Filter-Id option)
Added scratch passwords generation (if the token is lost)
Automatic database schema upgrade using method UpgradeSchemaIfNeeded()
Added client/server support with local cache
Added CHAP authentication support (PAP is of course still supported)
The encryption key is now a parameter of the class constructor
The method SetEncryptionKey('MyPersonalEncryptionKey') is DEPRECATED
The method DefineMySqlConnection is DEPRECATED
Full MySQL support, including tables creation (see example and SetSqlXXXX methods)
Added email, sms and seed_password to users attributes
Added sms support (aspsms, clickatell, intellisms, exec)
Added prefix support for debug mode (in order to send Reply-Message := to Radius)
Added a lot of new methods to handle easier the users and the tokens
General speedup by using available native functions for hash_hmac and others
Default max_time_window has been lowered to 600 seconds (thanks Stefan for suggestion)
Integrated Google Authenticator support with integrated base 32 seed handling
Integrated QRcode generator library (from Y. Swetake)
General options in an external configuration file
Comments have been reformatted and enhanced for automatic documentation
Development process enhanced, source code reorganized, external contributions are
added automatically at the end of the library after an internal build release
2011-10-25 3.9.2 Some quick fixes after intensive check
Improved get_script_dir() in CLI for Linux/Windows compatibility
2011-09-15 3.9.1 Some quick fixes concerning multiple users
2011-09-13 3.9.0 Added support for account with multiple users
2011-07-06 3.2.0 Encryption hash handling with additional error message 33
(if the key has changed)
Added more examples
Added generic user with multiple account
(Real account name is combined: "user" and "account password")
Added log options, now default doesn't log token value anymore
Debugging MySQL backend support for the token handling
Fixed automatic detection of \ or / for script path detection
2010-12-19 3.1.1 Better MySQL backend support, including in CLI version
2010-09-15 3.1.0 Removed bad extra spaces in the multiotp.php file for Linux
MySQL backend support
2010-09-02 3.0.0 Added tokens handling support
including importing XML tokens definition file
(http://tools.ietf.org/html/draft-hoyer-keyprov-pskc-algorithm-profiles-00)
Enhanced flat database file format (multiotp is still compatible with old versions)
Internal method SetDataReadFlag renamed to SetUserDataReadFlag
Internal method GetDataReadFlag renamed to GetUserDataReadFlag
2010-08-21 2.0.4 Enhancement in order to use an alternate php "compiler" for Windows command line
Documentation enhancement
2010-08-18 2.0.3 Minor notice fix
2010-07-21 2.0.2 Fix to create correctly the folders "users" and "log" if needed
2010-07-19 2.0.1 Foreach was not working well in PHP4, replaced at some places
2010-07-19 2.0.0 New design using a class, mOTP support, cleaning of the code
2010-06-15 1.1.5 Added OATH/TOTP support
2010-06-15 1.1.4 Project renamed to multiotp to avoid overlapping
2010-06-08 1.1.3 Typo in script folder detection
2010-06-08 1.1.2 Typo in variable name
2010-06-08 1.1.1 Status bar during resynchronization
2010-06-08 1.1.0 Fix in the example, distribution not compressed
2010-06-07 1.0.0 Initial implementation
CONTENT OF THE PACKAGE
- the MSI installer of multiOTP Credential Provider for Windows 7/8/8.1/10/2012(R2)/2016 must be downloaded separately on https://download.multiotp.net/credential-provider/
In the linux folder:
- multiotp.php : command line tool (merge of the header and the class, external files also included)
- multiotp.class.php : the main file, it is the class itself, external files are already included
- multiotp.server.php : the web service file (the class is already merged in the file, external files also included)
- check.multiotp.class.php : PHP script to validate some multiOTP functionalities
- md5.js : encryption JS library used by multiotp.server.php
- test-tokens.csv : provisioning file of test tokens
+ oath subfolder : contains provisioning files for oath test tokens
+ templates folder : all templates files needed to generate the provisioning pages from the web GUI
*******************************************************************************
*** FOR THESE PHP FILES, THE BACKEND IS FILE BASED AND THE CONFIG AND ***
*** BACKEND FOLDERS ARE RELATIVE AND JUST BELOW THE MAIN MULTIOTP FOLDER ***
*******************************************************************************
In the raspberry folder:
- all necessary files to be able to create your own strong authentication device using a Raspberry Pi
*******************************************************************************
*** FOR THESE PHP FILES, THE BACKEND IS SET BY DEFAULT AS FILE BASED AND ***
*** THE CONFIG AND BACKEND FOLDERS DEFINED TO BE LOCATED IN /etc/multiotp/ ***
*** FURTHERMORE, THIS VERSION USES THE ADVANCED WEB PROXY IMPLEMENTATION ***
*******************************************************************************
*** !!! Be careful when you update your open source virtual appliance !!! ***
*** The multiOTP open source Virtual Appliance is also using the ***
*** files in raspberry/boot-part/multiotp-tree/usr/local/bin/multiotp, ***
*** with config and backend folders defined to be located in /etc/multiotp/ ***
*******************************************************************************
In the sources folder:
- multiotp.class.php : the main file, it is the class itself, which requires external files
- multiotp.cli.header.php : header file to be merged with the class for a single file command line tool
- multiotp.server.php : the web service file, which requires the class as external file
- check.multiotp.class.php : PHP script to validate some multiOTP functionalities
+ contrib subfolder : contains all external files required by the multiotp.class.php file
*******************************************************************************
*** FOR THESE PHP FILES, THE BACKEND IS FILE BASED AND THE CONFIG AND ***
*** BACKEND FOLDERS ARE RELATIVE AND JUST BELOW THE MAIN MULTIOTP FOLDER ***
*******************************************************************************
In the windows folder:
- multiotp.exe : command line tool for Windows (digitally signed) with embedded PHP 7.x
- multiotp.class.php : the main file, it is the class itself, external files are already included
- multiotp.server.php : the web service file (the class is already merged in the file, external files also included)
- check.multiotp.class.php : PHP script to validate some multiOTP functionalities
- md5.js : encryption JS library used by multiotp.server.php
- checkmultiotp.cmd : Windows script to validate some multiOTP functionalities
- radius_debug.cmd : Windows script to run the multiOTP radius web server in debug mode
- radius_install.cmd : Windows script to install and start the multiOTP radius web server
- radius_uninstall.cmd : Windows script to stop and uninstall the multiOTP radius web server
- webservice_install.cmd : Windows script to install and start the multiOTP web service
- webservice_uninstall.cmd : Windows script to stop and uninstall the multiOTP web service
- test-tokens.csv : provisioning file of test tokens
+ legacy subfolder : contains a windows command line version with all needed files
(not embedded in a mini VM). This version is used by the multiOTP web service.
+ oath subfolder : contains provisioning files for oath test tokens
+ radius subfolder : all necessary files to be able to install a Windows radius server already
configured with multiOTP support (using FreeRADIUS implementation for Windows)
+ templates subfolder : all templates files needed to generate the provisioning pages from the web GUI
+ tools subfolder : command line tools needed by some cmd scripts
+ webservice subfolder : all necessary files to be able to install a Windows multiOTP web service
(using Nginx as the light web server on port 8112,
or as a secured SSL connection (https) on port 8113)
*******************************************************************************
*** FOR THESE PHP FILES, THE BACKEND IS FILE BASED AND THE CONFIG AND ***
*** BACKEND FOLDERS ARE RELATIVE AND JUST BELOW THE MAIN MULTIOTP FOLDER ***
*******************************************************************************
TYPICAL TREE OF A WORKING LINUX INSTALLATION
A typical installation has the following tree organization:
Software files
/usr/local/bin/
/usr/local/bin/multiotp (contains multiotp.php)
/usr/local/bin/multiotp/templates
Data files
/etc/multiotp/
/etc/multiotp/config (contains multiotp.ini)
/etc/multiotp/devices
/etc/multiotp/groups
/etc/multiotp/tokens
/etc/multiotp/users (contains my_user1.db, my_user2.db, ...)
HOW CAN I CREATE MYSELF THE DIFFERENT VERSIONS ?
The multiotp.php file is a copy of the multiotp.cli.header.php including the copy of all files that are included in the PHP code, which are multiotp.class.php and the whole contrib subfolder content.
For the virtual appliance and the Raspberry Pi edition, the multiotp.php file is a copy of the multiotp.cli.proxy.php file. (the proxy version calls the multiotp.proxy.php using the web server, and the web server has a PHP cache to improve the speed of the whole process).
For the virtual appliance and the Raspberry Pi edition, the multiotp.proxy.php file is a copy of the multiotp.cli.header.php including the copy of all files that are included in the PHP code, which are multiotp.class.php and the whole contrib subfolder content.
For the virtual appliance and the Raspberry Pi edition, the following line in multiotp.class.php
$multiotp = new Multiotp('DefaultCliEncryptionKey', $initialize_backend, $folder_path);
is replaced by
$multiotp = new Multiotp('DefaultCliEncryptionKey', $initialize_backend, $folder_path);
if (false !== strpos(getcwd(), '/')) {
$multiotp->SetConfigFolder('/etc/multiotp/config/');
$multiotp->SetCacheFolder('/tmp/cache/');
$multiotp->SetDevicesFolder('/etc/multiotp/devices/');
$multiotp->SetGroupsFolder('/etc/multiotp/groups/');
$multiotp->SetTokensFolder('/etc/multiotp/tokens/');
$multiotp->SetUsersFolder('/etc/multiotp/users/');
$multiotp->SetLogFolder('/var/log/multiotp/');
$multiotp->ReadConfigData();
}
$multiotp->SetLinuxFileMode('0666');
The multiotp.exe is a stub launcher running a PHP interpreter.
The necessary files of the PHP distribution are included in the php subfolder.
PHP download : http://php.net/downloads.php
The source files of the Credential provider are available on GitHub and needs
the free Visual Studio Community to be compiled.
Source files : https://github.com/multiOTP/multiOTPCredentialProvider
Visual Studio Community : https://www.visualstudio.com/vs/community/
WHEN AND HOW CAN I USE THIS PACKAGE ?
If you decide to have strong two factor authentication inside your company, this is definitely the package you need! You will be able to have strong authentication for your VPN accesses, your SSL gateway, your private websites and even your Windows login for desktops AND laptops!
The multiOTP class can be used alone (for example to have strong authentication for your PHP based web application), as a command line tool (to handle users and have strong authentication using command line), as a web service (to provide centralized authentication for a client/server installation) or finally coupled with a radius server like TekRADIUS or FreeRADIUS to be able to have a strong two factor authentication through the RADIUS protocol for external devices like for example firewalls or captive portals.
The default backend storage is done in flat files, but you can also defined a MySQL server as the backend server. To use MySQL, you will only have to provide the server, the username, the password and the database name. Tables will be created/updated automatically by multiOTP. The schema is also upgraded automatically if you install a new release of multiOTP.
Starting with version 4.x, you can also install a multiOTP web service on a server, and this way some other multiOTP slave clients (like laptops) can connect to the web service and caching the tokens information (if allowed).
Inside a company, you will probably use multiOTP with a radius server or as a web service (see below on how to install these services).
If you are running under Windows, TekRADIUS or TekRADIUS LT will do the job (http:/www.tekradius.com/). The difference is that TekRADIUS needs an MS-SQL SERVER (or MS-SQL Express) and TekRADIUS LT uses only an embedded SQLite database.
multiOTP is working fine under Windows with WinRADIUS, a port of FreeRADIUS (http://winradius.eu/)
multiOTP is also working fine with another port of FreeRADIUS for Windows (http://sourceforge.net/projects/freeradius/)
If you are running under Linux, FreeRADIUS will do the job. (http://freeradius.org/)
Now, you can register your different devices like firewalls, SSL, etc. in the radius server and provide the IP address(es) of the device(s) (often called NAS) and their shared Secret.
If you want to have strong authentication on Windows logon, have a look at the
open source project multiOTPCredentialProvider which is based on MultiotpCPV2RDP
from arcadejust and MultiOneTimePassword Credential Provider from Last Squirrel IT.
It works with Windows 7/8/8.1/10/11/2012(R2)/2016/2019/2022 in 64 bits.
The Credential Provider does not need any RADIUS connection! It uses instead a
local version of multiOTP which can be configured as a client of a
centralized server (with caching support).
(https://download.multiotp.net/credential-provider/)
When the backend is set, it's time to create/define the tokens. You will have to select hardware or software token generators for your users. Currently, the library supports mOTP, TOTP, HOTP, SMS or scratch passwords (printed on paper).
mOTP is a free implementation of strong tokens that asks a PIN to generate a code. This code depends of the time and the PIN typed by the user.
A special without2FA token type is also available. It could be useful to do 2FA only for some accounts and not for others.
The easiest tokens to use are TOTP, they are time based and well supported by a lot of implementations like Google Authenticator. Provisioning will be done simply by flashing a QRcode.
Software tokens with mOTP (Mobile-OTP) support
- Swiss SafeLab OTP authenticator (iOS and Android)
- iPhone: iOTP from PDTS (type iOTP in the Apple AppStore)
- Android: Mobile-OTP (http://motp.sf.net/Mobile-OTP.apk)
- PalmOS: Mobile-OTP (http://motp.sf.net/mobileotp_palm.zip)
- Java J2ME (Nokia and other Java capable phones): MobileOTP (http://motp.sf.net/MobileOTP.jad)
- WinPhone: Token2 (https://token2.com/?content=mobileapp)
Software tokens with OATH compliant HOTP or TOTP support
Check the various markets of your devices, for examples:
- FreeOTP (open source): https://freeotp.github.io/
- oathtoken for iPhone/iPad: https://github.com/archiecobbs/oathtoken
- androidtoken for Android: https://github.com/markmcavoy/androidtoken
- Google Authenticator (Android/iPhone/iPad/BlackBerry)
Hardware tokens
- Any tokens that are OATH certified
- Feitian provides OATH compliant HOTP and TOTP tokens
(seed is provided in a standardized token definition PSKC xml file)
- OTP c100: OATH/HOTP, 6 digits
- OTP c200: OATH/TOTP, 6 digits, 60 seconds time interval (seed is provided in a standardized token definition PSKC xml file)
- Gemalto provides OATH compliant HOTP and TOTP tokens
- Gemalto Ezio Token
- Seamoon provides OATH compliant TOTP tokens
- Seamoon KingKey: OATH/TOTP, 6 digits, 60 seconds time interval (seed is provided in a specific smd file)
- ZyXEL OTP provides HOTP OATH compliant tokens (v2 and old v1 tokens)
- ZyWALL OTPv2 (rebranded SafeNet/Aladdin eToken PASS) : OATH/HOTP, 6 digits (seed is extracted from the importAlpine.dat downloaded file, the seed is the sccKey attribute)
- ZyWALL OTPv1 (rebranded Authenex A-Key 3600): OATH/HOTP, 6 digits (seed is extracted from the OTP_data01_upgrade.sql SQL file, SEED field at the end of the file)
- Feitian provides OATH compliant HOTP and TOTP tokens
(seed is provided in a standardized token definition PSKC xml file)
- YubiKeys from Yubico (both in Yubico OTP or in OATH-HOTP format)
- YubiKey standard
- YubiKey Nano
- YubiKey Neo
- YubiKey Neo-N
If you want to use software tokens with Apps like Google Authenticator, you can create a QRcode provisioning in two EASY steps with the command line tool:
- create the token for the user (without prefix PIN request): multiotp -fastcreatenopin my_user
- generate the provisioning QRcode: multiotp -qrcode my_user my_qrcode.png
You can also create a user quickly with the prefix PIN request option based on the default option set in your configuration: multiotp -fastcreate my_user
And of course, you can also force to create a user quickly with a requested prefix PIN: multiotp -fastcreatewithpin my_user
WHAT IS THE PREFIX PIN OPTION ?
The prefix PIN option is activated by default. Users will have to type their PIN + the displayed token. The prefix PIN option has no effect for mOTP tokens, and the users MUST NOT type their prefix PIN before the displayed token for mOTP tokens, as the prefix PIN is already used by the algorithm in order to generate the token.
Starting with version 4.3, it's now possible to use the synchronized AD/LDAP password as a prefix instead of the static PIN. Please note that even with the AD/LDAP password as a prefix activated, the PIN used for mOTP tokens is still the static PIN.
To create a user quickly with the prefix PIN request option based on the default option set in your configuration: multiotp -fastcreate my_user
To create a user quickly without a prefix PIN request: multiotp -fastcreatenopin my_user
To create a user quickly with a requested prefix PIN: multiotp -fastcreatewithpin my_user
HOW THE LOCKOUT OF AN ACCOUNT IS WORKING ?
To prevent brute-force attack, an account is temporary locked for 300 seconds
after 3 unsuccessful trials.
After 6 unsuccessful trials, the account is definitely locked.
A user is unlocked by typing the following command line: multiotp -unlock user
A user can also unlock his account by typing two consecutive codes,
separated by a space (don't forget the prefix PIN/password if enabled).
If prefix PIN is enabled, your PIN is 1234 and the two consecutive tokens are
984501 and 348202, you will have to type "1234984501 1234348202" as the
password in order to unlock the account during authentication.
The lockout parameters can be modified using these command lines:
multiotp -config failure-delayed-time=60
multiotp -config max-block-failures=12
multiotp -config max-delayed-failures=10
HOW TO SELF-UNLOCK AN ACCOUNT ?
The user can help itself by auto-deblocking its account like this: Username: USERNAME Password: [PREFIX PASSWORD] + [OTP] + [space] + [THE NEXT OTP]
HOW TO DEBUG ?
In order to have debug information, you can use the -debug option. With this
option, the debug information are saved in the file log/multiotp.log.
If you want to see directly the debug information on screen, add the
-display-log and an output of the debug information will be done on screen too.
In order to enable the debug mode permanently without using the option, you can do that like this: multiotp -config debug=1
The same thing can be done for a permanent display of the debug information on the screen without using the option: multiotp -config display-log=1
HOW TO INSTALL THE MULTIOTP WEB SERVICE UNDER WINDOWS ?
Installing the multiOTP web service is VERY easy. Simply run the webservice_install script. Nginx configuration file will be created, firewall rules will be adapted and the service will be installed and started. The service is called multiOTPservice and is listening on port 8112 (http) and on port 8113 (https).
HOW TO INSTALL THE MULTIOTP RADIUS SERVER UNDER WINDOWS ?
Installing the multiOTP radius service is VERY easy too. Simply run the radius_install script. The etc/raddb/modules/multiotp file will be created, firewall rules will be adapted and the service will be installed and started. The service is called multiOTPradius and the secret is multiotpsecret for any client including 127.0.0.1.
CONFIGURING MULTIOTP WITH TEKRADIUS OR TEKRADIUS LT UNDER WINDOWS
TekRADIUS supports a Default Username to be used when a matching user profile cannot be found for an incoming RADIUS authentication request. So a quick and easy way is to create in the TekRADIUS Manager a User named 'Default' that belongs to the existing 'Default' Group. Then add to this Default user the following attribute : Check External-Executable C:\multitop\multiotp.exe %ietf|1% %ietf|2% -chap-challenge=%ietf|60% -chap-password=%ietf|3% -ms-chap-challenge=%msoft|11% -ms-chap-response=%msoft|1% -ms-chap2-response=%msoft|25%
Some values can go back to TekRADIUS:
a) Set the right format options for TekRADIUS: multiotp -config radius-reply-attributor="=" radius-reply-separator="crlf"
b) Set multiOTP to send back to TekRADIUS the clear (non encrypted) authentication: multiotp -config clear-otp-attribute="ietf|2"
c) Set multiOTP to send back to TekRADIUS the group of the authenticated user: multiotp -config group-attribute="ietf|11"
HOW TO INSTALL THE MULTIOTP WEB SERVICE UNDER LINUX ?
The multiOTP web service is a simple web site. If you are under Linux and you are reading this document, you have for sure the necessary skill to configure your favorite web server in order to have an URL that will launch the page multiotp.server.php which is in the main folder of the multiOTP distribution.
Please check carefully the rights of the folders, as the multiOTP web service has to write in the various subfolders.
CONFIGURING MULTIOTP WITH FREERADIUS 2.X UNDER LINUX
Using the -request-nt-key option, NT_KEY: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX can now be displayed (like with the same option used with ntlm_auth).
- Create a new module file called "multiotp" in etc/raddb/modules/ containing:
# Exec module instance for multiOTP (https://www.multiotp.net/).
# for Linux : replace '/path/to/multiotp' with the actual path to the multiotp.php file, including the full file name.
# for Windows: replace '/path/to' with the actual path to the multiotp.exe file (also with /), including the fulle file name.
exec multiotp {
wait = yes
input_pairs = request
output_pairs = reply
program = "/path/to/multiotp '%{User-Name}' '%{User-Password}' -request-nt-key -src=%{Packet-Src-IP-Address} -chap-challenge=%{CHAP-Challenge} -chap-password=%{CHAP-Password} -ms-chap-challenge=%{MS-CHAP-Challenge} -ms-chap-response=%{MS-CHAP-Response} -ms-chap2-response=%{MS-CHAP2-Response}"
shell_escape = yes
}
- In the configuration file called "default" in etc/raddb/sites-enabled/
a) Add the multiOTP handling
#
# Handle multiOTP (https://www.multiotp.net/) authentication.
# This must be added BEFORE the first "pap" entry found in the file.
multiotp
b) Add the multiOTP authentication handling
#
# Handle multiOTP (https://www.multiotp.net/) authentication.
# This must be added BEFORE the first "Auth-Type PAP" entry found in the file.
Auth-Type multiotp {
multiotp
}
c) Comment the first line containing only "chap"
#chap is now handled by multiOTP
d) Comment the first line containing only "mschap"
#mschap is now handled by multiOTP
- In the configuration file called "inner-tunnel" in etc/raddb/sites-enabled/
a) Add the multiOTP handling
#
# Handle multiOTP (https://www.multiotp.net/) authentication.
# This must be added BEFORE the first "pap" entry found in the file.
multiotp
b) Add the multiOTP authentication handling
#
# Handle multiOTP (https://www.multiotp.net/) authentication.
# This must be added BEFORE the first "Auth-Type PAP" entry found in the file.
Auth-Type multiotp {
multiotp
}
c) Comment the first line containing only "chap"
#chap is now handled by multiOTP
d) Comment the first line containing only "mschap"
#mschap is now handled by multiOTP
- In the configuration file called "policy.conf" in etc/raddb/
Add the multiOTP authorization policy
#
# Handle multiOTP (https://www.multiotp.net/) authorization policy.
# This must be added just before the last "}"
multiotp.authorize {
if (!control:Auth-Type) {
update control {
Auth-Type := multiotp
}
}
}
-
In the configuration file called "radiusd.conf" in etc/raddb/
Depending which port(s) and/or ip address(es) you want to listen, change the corresponding ipaddr and port parameters -
In the configuration file called "clients.conf" in etc/raddb/
Add the clients IP, mask and secret that you want to authorize.
#
# Handle multiOTP (https://www.multiotp.net/) for some clients.
client 0.0.0.0 {
netmask = 0
secret = multiotpsecret
}
-
Now, to see what's going on, you can:
- stop the service : /etc/init.d/freeradius stop
- launch the FreeRADIUS server in debug mode : /usr/sbin/freeradius -X
- try to make some authentication requests
-
When you have checked that everything works well:
- stop the debug mode (CTRL + C)
- restart the service /etc/init.d/freeradius restart
Some values can go back to FreeRADIUS:
-
Set the right format options for FreeRADIUS:
multiotp -config radius-reply-attributor=" += " radius-reply-separator="," -
Set multiOTP to send back to FreeRADIUS the group of the authenticated user:
multiotp -config group-attribute="Filter-Id"
CONFIGURING MULTIOTP WITH FREERADIUS 3.X UNDER LINUX
Source: https://wiki.freeradius.org/guide/multiOTP-HOWTO
multiOTP tokens will work with any type of PAP/CHAP/MS-CHAP/MS-CHAPv2 based authentication, including EAP-TTLS-PAP. With the correct OS/Supplicant software tokens can be used for 802.1X authentication and well as for standard PAP/CHAP/MS-CHAP/MS-CHAPv2 authentication (just make the changes described in the inner server). This guide closely follows the NTLM Auth with PAP HOWTO but with a little extra validation.
NT_KEY generation is also supported using the -request-nt-key option (like for ntlm_auth --request-nt-key option), which is needed in order to enable VPN (PPTP + MPPE) with MS-CHAP/MS-CHAPv2.
Before starting or asking for help
- Make sure the otp script is executable chmod +x /path/to/multiotp.php
- Verify multiotp is setup correctly by calling the script from the commandline with the appropriate arguments
- Create '/etc/freeradius/3.0/mods-available/multiotp' and add the following, this will create a new instance of the exec module:
# Exec module instance for multiOTP
# Replace '/path/to' with the actual path to the multiotp.php file
exec multiotp {
wait = yes
input_pairs = request
output_pairs = reply
program = "/path/to/multiotp.php -base-dir='/path/to/multiotp/' '%{User-Name}' '%{User-Password}' -src='%{Packet-Src-IP-Address}' -tag='%{Client-Shortname}' -mac='%{Called-Station-Id}' -calling-ip='%{Framed-IP-Address}' -calling-mac='%{Calling-Station-Id}' -chap-challenge='%{CHAP-Challenge}' -chap-password='%{CHAP-Password}' -ms-chap-challenge='%{MS-CHAP-Challenge}' -ms-chap-response='%{MS-CHAP-Response}' -ms-chap2-response='%{MS-CHAP2-Response}' -state='%{State}'"
shell_escape = yes
}
- Enable multiotp module by creating a symbolic link
ln -s /etc/freeradius/3.0/mods-available/multiotp /etc/freeradius/3.0/mods-enabled/multiotp
- Copy /etc/freeradius/3.0/mods-available/mschap to /etc/freeradius/3.0/mods-available/multiotpmschap. Change the following line in multiotpmschap:
"mschap {"
to
"mschap multiotpmschap {"
Also change ntlm_auth variable:
ntlm_auth = "/path/to/multiotp.php -base-dir='/path/to/multiotp/' '%{User-Name}' '%{User-Password}' -nt-key-only -src='%{Packet-Src-IP-Address}' -tag='%{Client-Shortname}' -mac='%{Called-Station-Id}' -calling-ip='%{Framed-IP-Address}' -calling-mac='%{Calling-Station-Id}' -chap-challenge='%{CHAP-Challenge}' -chap-password='%{CHAP-Password}' -ms-chap-challenge='%{MS-CHAP-Challenge}' -ms-chap-response='%{MS-CHAP-Response}' -ms-chap2-response='%{MS-CHAP2-Response}' -state='%{State}'"
- Enable multiotpmschap module by creating a symbolic link
ln -s /etc/freeradius/3.0/mods-available/multiotpmschap /etc/freeradius/3.0/mods-enabled/multiotpmschap
- Edit /etc/freeradius/3.0/mods-available/perl file. Change the following line :
filename =
to
filename = /path/to/multiotp/scripts/multiotp.pl
Since 5.8.3.0 and FreeRADIUS 3.0.18, set the perl flags to -U
perl_flags = "-U"
- Enable perl module by creating a symbolic link
ln -s /etc/freeradius/3.0/mods-available/perl /etc/freeradius/3.0/mods-enabled/perl
7)If necessary change multiOTP path in the multiOTP perl file scripts/multiotp.pl
my $output=`/usr/local/bin/multiotp/multiotp.php -base-dir='/usr/local/bin/multiotp/' "$multiotp_
to
my $output=`/path/to/multiotp.php -base-dir='/path/to/multiotp/' "$multiotp_
- Create /etc/freeradius/3.0/policy.d/multiotp file and add the following to override the authorize method of the exec module:
# Change to a specific prefix if you want to deal with normal PAP authentication as well as OTP
# e.g. "multiotp_prefix = 'otp:'"
multiotp_prefix = ''
multiotp.authorize {
# This test force multiOTP for any MS-CHAP(v2),CHAP and PAP attempt
if (control:Auth-Type == mschap) {
update control {
Auth-Type := multiotpmschap
}
}
elsif (control:Auth-Type == chap) {
update control {
Auth-Type := multiotp
}
}
elsif (!control:Auth-Type) {
update control {
Auth-Type := multiotp
}
}
}
- Enable files and add perl just after files, in the authorize section of /etc/freeradius/3.0/sites-available/default. Add the following lines: ... files
perl #multiotp
if (ok || updated) { #multiotp
update control { #multiotp
Auth-Type := Perl #multiotp
Client-Shortname = "%{Client-Shortname}" #multiotp
Packet-Src-IP-Address = "%{Packet-Src-IP-Address}" #multiotp
} #multiotp
} #multiotp
After logintime add the following line : ... expiration logintime
# Handle multiotp authentication
multiotp
- Add a call to multiotp before the pap module in authenticate section of /etc/freeradius/3.0/sites-available/default. Add the following lines: ... authenticate {
Auth-Type multiotp {
multiotp
} #multiotp
Auth-Type multiotpmschap {
multiotpmschap
} #multiotpmschap
Auth-Type Perl { #multiotp
perl #multiotp
} #multiotp
- Add a call to perl in accounting section of /etc/freeradius/3.0/sites-available/default. Add the following lines: ... accounting {
perl #multiotp
- Enable multiotp, in the authorize section of /etc/freeradius/3.0/sites-available/inner-tunnel. Add the following lines:
After logintime add the following line : ... expiration logintime
# Handle multiotp authentication
multiotp
... authenticate {
Auth-Type multiotp {
multiotp
} #multiotp
Auth-Type multiotpmschap {
multiotpmschap
} #multiotpmschap
Auth-Type Perl { #multiotp
perl #multiotp
} #multiotp
- Start the server up in debug mode radiusd -X and test authentication
HOW TO CONFIGURE MULTIOTP TO SYNCHRONIZED THE USERS FROM AN ACTIVE DIRECTORY ?
-
Decide if you want that by default, created users need to type a prefix PIN (1|0):
multiotp -config default-request-prefix-pin=1 -
Decide if you want that by default, created users need to type their Active Directory password instead of PIN (1|0):
multiotp -config default-request-ldap-pwd=1 -
Set the AD/LDAP server type (1=Active Directory | 2=standard LDAP):
multiotp -config ldap-server-type=1 -
Set the user CN identifier (sAMAccountName, eventually userPrincipalName):
multiotp -config ldap-cn-identifier="sAMAccountName" -
Set the group CN identifier (sAMAccountName for Active Directory):
multiotp -config ldap-group-cn-identifier="sAMAccountName" -
Set the group attribute:
multiotp -config ldap-group-attribute="memberOf" -
Decide if you want to use by default an SSL connection or not (0|1):
multiotp -config ldap-ssl=0 -
Set the default port (389=regular | 636=SSL connection):
multiotp -config ldap-port=389 -
Set the Active Directory server(s), comma separated:
multiotp -config ldap-domain-controllers=my.srv.com,ldaps://12.13.14.15:636
(you can define more than one server, and you can also use a SSL connection only for one server, on a specific port) -
Set the Base DN:
multiotp -config ldap-base-dn="DC=demo,DC=multiotp,DC=net"
(on a Microsoft Windows Server, the different values of the base DN of the domain can be displayed using the command ECHO %USERDNSDOMAIN%, and the result will be something like DEMO.MULTIOTP.NET) -
Set the Bind DN (which is the account used to connect to the AD/LDAP):
multiotp -config ldap-bind-dn="CN=sync,CN=Users,DC=demo,DC=multiotp,DC=net"
(on a Microsoft Windows Server, the bind DN of the user can be displayed using the command dsquery user -name sync, and the result will be something like "CN=sync,CN=Users,DC=demo,DC=multiotp,DC=net") -
Set the password of the user used to search in the Active Directory:
multiotp -config ldap-server-password="password_of_my_ldap_user" -
In which groups users must be in the Active Directory in order to be added:
multiotp -config ldap-in-group="VPNuser,dialin" -
Set the network timeout
multiotp -config ldap-network-timeout=10 -
Set the transaction time limit
multiotp -config ldap-time-limit=30 -
Activate the AD/LDAP support (0|1):
multiotp -config ldap-activated=1 -
Let's go for an AD/LDAP users synchronisation ! (users removed or deactivated in the AD/LDAP are deactivated in multiOTP) multiotp -debug -display-log -ldap-users-sync
DON'T FORGET TO SCHEDULE A SCRIPT THAT WILL DO THE USERS SYNCHRONIZATION REGULARY!
HOW TO CONFIGURE MULTIOTP TO SYNCHRONIZED THE USERS FROM A STANDARD LDAP ?
-
Decide if you want that by default, created users need to type a prefix PIN (1|0): multiotp -config default-request-prefix-pin=1
-
Decide if you want that by default, created users need to type their LDAP password instead of PIN (1|0): multiotp -config default-request-ldap-pwd=1
-
Set the AD/LDAP server type (1=Active Directory | 2=standard LDAP): multiotp -config ldap-server-type=2
-
Set the user CN identifier (uid for standard LDAP): multiotp -config ldap-cn-identifier="uid"
-
Set the group CN identifier (cn for standard LDAP): multiotp -config ldap-group-cn-identifier="cn"
-
Set the group attribute: multiotp -config ldap-group-attribute="memberOf"
-
Decide if you want to use by default an SSL connection or not (0|1): multiotp -config ldap-ssl=0
-
Set the default port (389=regular | 636=SSL connection): multiotp -config ldap-port=389
-
Set the LDAP server(s), comma separated: multiotp -config ldap-domain-controllers=my.srv.com,ldaps://12.13.14.15:636 (you can define more than one server, and you can also use a SSL connection only for one server, on a specific port)
-
Set the Base DN: multiotp -config ldap-base-dn="dc=demo,dc=multiotp,dc=net"
-
Set the Bind DN (which is the account used to connect to the AD/LDAP): multiotp -config ldap-bind-dn="uid=sync,cn=users,dc=demo,dc=multiotp,dc=net"
-
Set the password of the user used to search in the LDAP directory: multiotp -config ldap-server-password="password_of_my_ldap_user"
-
In which groups users must be in LDAP directory in order to be added: multiotp -config ldap-in-group="VPNuser,dialin"
-
Set the network timeout multiotp -config ldap-network-timeout=10
-
Set the transaction time limit multiotp -config ldap-time-limit=30
-
(EXPERT ONLY) If needed, you can change the LDAP filter. By default, the LDAP filter for standard LDAP is : "(&(|(objectClass=posixAccount)(objectClass=user))({cn_identifier}={username}))" You can use the following placeholders: {cn_identifier}, {username}, and {groups_filtering} multiotp -config ldap-filter="(&(|(objectClass=posixAccount)(objectClass=user))({cn_identifier}={username}))"
-
Activate the AD/LDAP support (0|1): multiotp -config ldap-activated=1
-
Let's go for an AD/LDAP users synchronisation ! (users removed or deactivated in the AD/LDAP are deactivated in multiOTP) multiotp -debug -display-log -ldap-users-sync
DON'T FORGET TO SCHEDULE A SCRIPT THAT WILL DO THE USERS SYNCHRONIZATION REGULARY!
HOW TO CONFIGURE MULTIOTP TO USE THE CLIENT/SERVER FEATURE ?
A) On the server
- Install the multiOTP web service on the authentication server side. If you are using the unmodified included installer to install it under Windows, the URL for the multiOTP web service is http://ip.address.of.server:8112 The web service script installer is called webservice_install.cmd.
- Set the shared secret key you will use to encode the data between the server and the client: multiotp -config server-secret=MySharedSecret (this command line will change the configuration file config/multiotp.ini)
- If you want to allow the client to cache the data on its side, set the options accordingly (enable the cache and define the lifetime of the cache): multiotp -config server-cache-level=1 server-cache-lifetime=15552000 (this command line will change the configuration file config/multiotp.ini)
- Create your users on the server using the CLI or the web GUI interface. If you are using the unmodified included installer to install it under Windows, the URL for the multiOTP web service is http://ip.address.of.server:8112
B) On the client(s)
- Set the shared secret key you will use to encode the data between the client and the server: multiotp -config server-secret=MySharedSecret (this command line will change the configuration file config/multiotp.ini)
- If you want to have cache support (if allowed by the multiOTP web service), set the option accordingly: multiotp -config server-cache-level=1 (this command line will change the configuration file config/multiotp.ini)
- Define the timeout after which you will switch to the next server(s), and on the local cache if no server available: multiotp -config server-timeout=3 (this command line will change the configuration file config/multiotp.ini)
- Last but not least, define the server(s) you want to connect with: multiotp -config server-url=http://ip.address.of.server:8112;http://url2 (this command line will change the configuration file config/multiotp.ini) If you want to connect with a commercial multiOTP appliance, the URL is https://ip.address.of.commercial.multiotp.server
- Check your installation on the client by typing multiotp -display-log -log -debug "user" "token", where "user" is an existing user and "token" is the generated token for this user. If you have created a user with a prefix PIN, don't forget to type the prefix PIN before the displayed token. Example without a prefix PIN: multiotp test 457863 Example with the "1234" prefix PIN: multiotp test 1234457863
HOW TO INSTALL A LOCAL ONLY STRONG AUTHENTICATION ON A WINDOWS MACHINE ?
- Install multiOTPCredentialProvider, which contains also multiOTP inside. It works with Windows 7/8/8.1/10/11/2012(R2)/2016/2019/2022 in 64 bits. (https://download.multiotp.net/credential-provider/)
- During the installation, specify the folder on the client where the multiotp.exe file and folders must be installed and configured.
- In the wizard, leave the URL of the multiOTP server(s) empty.
- You can also choose to require a strong authentication only for RDP.
- When you are on the test page, open a command prompt in the folder where multiOTP is now installed and create a new local user as explained above.
- If the test is successful, the Credential Provider is installed.
- To disable the Credential Provider, uninstall it from Windows, or execute multiOTPCredentialProvider-unregister.reg
HOW TO INSTALL A CENTRALIZED 2FA SERVER FOR WINDOWS DESKTOPS OR RDP LOGIN ?
- Install a client/server multiOTP environment like explained above.
- On each client, install multiOTPCredentialProvider . It works with Windows 7/8/8.1/10/11/2012(R2)/2016/2019/2022 in 64 bits. (https://download.multiotp.net/credential-provider/)
- During the installation, specify the folder on the client where the multiotp.exe file and folders must be installed and configured.
- In the wizard, type the URL of the multiOTP server(s).
- You can also choose to require a strong authentication only for RDP.
- On the test page, test your account to be sure that everything works.
- If the test is successful, the Credential Provider is installed.
- To disable the Credential Provider, uninstall it from Windows, or execute multiOTPCredentialProvider-unregister.reg
ADDING 2FA WITH MULTIOTP TO THE REMOTE DESKTOP WEB ACCESS (RDWEB) ON WINDOWS
For these instructions, we assume that multiOTP is installed in the folder C:\multiOTP After Remote Desktop Web Access installation, RDWeb files are stored in the folder C:\Windows\Web\RDWeb\
- Edit the file C:\Windows\Web\RDWeb\Web.config, and add three lines right after the appSettings block like this:
<?xml version="1.0"?>
<configuration>
<appSettings>
<!-- multiOTP addon begin -->
<add key="MultiOTPPathAndName" value="C:\\multiOTP\\multiotp.exe" />
<add key="OTPUsernameRegex" value="^[0-9a-zA-Z]*$" />
<add key="OTPRegex" value="^[0-9]{6}$" />
<!-- multiOTP addon end -->
...
- Edit the file C:\Windows\Web\RDWeb\Pages\en-US\login.aspx (en-US is for the american english version of the page), and add three lines here:
...
<% @Import Namespace="System.Web.Security.AntiXss" %>
<!-- multiOTP addon begin -->
<% @Import Namespace="System.Diagnostics" %>
<% @Import Namespace="System.Text.RegularExpressions" %>
<% @Import Namespace="System.Configuration" %>
<!-- multiOTP addon end -->
<script language="C#" runat=server>
...
- Always in the same file login.aspx, add this line after Localizable Text:
...
// Localizable Text
//
// multiOTP addon begin
const string L_OTPLabel_Text = "OTP:";
// multiOTP addon end
const string L_DomainUserNameLabel_Text = "Domain\\user name:";
...
- Always in the same file login.aspx, at the end of the LoginPageLoadAsync() method, add this line:
...
// multiOTP addon begin
if ( Request.Form["UserOTP"] != null ) Session["UserOTP"] = (string)Request.Form["UserOTP"];
// multiOTP addon end
}
//
// Special case to handle 'ServerConfigChanged' error from Response's Location header.
//
try
...
- Always in the same file login.aspx, replace the method SafeRedirect(strReturnUrlPage); with the following lines:
...
if ( HttpContext.Current.User.Identity.IsAuthenticated == true )
{
// multiOTP addon begin
string strOTPUsername = HttpContext.Current.User.Identity.Name;
if (strOTPUsername.Split('\\').Length > 1) strOTPUsername = strOTPUsername.Split('\\')[1];
if (strOTPUsername.Split('@').Length > 0) strOTPUsername = strOTPUsername.Split('@')[0];
bool bOTPAuthenticated = false;
if (Session["UserOTP"] != null)
{
string strOTP = (string)Session["UserOTP"];
if (!string.IsNullOrEmpty(strOTP) && Regex.Match(strOTP,ConfigurationManager.AppSettings["OTPRegex"]).Success && !string.IsNullOrEmpty(strOTPUsername) && Regex.Match(strOTPUsername,ConfigurationManager.AppSettings["OTPUsernameRegex"]).Success)
{
ProcessStartInfo oOTPStartInfo = new ProcessStartInfo();
oOTPStartInfo.FileName = ConfigurationManager.AppSettings["MultiOTPPathAndName"];
oOTPStartInfo.Arguments = strOTPUsername + " " + strOTP;
oOTPStartInfo.CreateNoWindow = true;
oOTPStartInfo.UseShellExecute = true;
Process oOTP = Process.Start(oOTPStartInfo);
oOTP.WaitForExit();
bOTPAuthenticated = (oOTP.ExitCode == 0);
}
}
if(bOTPAuthenticated)
{
if (String.IsNullOrEmpty(strReturnUrlPage))
Response.Redirect("default.aspx");
else
SafeRedirect(strReturnUrlPage);
}
else
{
FormsAuthentication.SignOut();
bFailedLogon = true;
if (bFailedAuthorization) bFailedAuthorization = false;
}
// multiOTP addon end
// multiOTP remove begin
// SafeRedirect(strReturnUrlPage);
// multiOTP remove end
}
...
- Always in the same file login.aspx, after the "UserPass" input, add the following lines:
...
<label><input id="UserPass" name="UserPass" type="password" class="textInputField" runat="server" size="25" autocomplete="off" /></label>
</td>
</tr>
</table>
</td>
</tr>
<!-- multiOTP addon begin -->
<tr>
<td>
<table width="300" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="130" align="right"><%=L_OTPLabel_Text%></td>
<td width="7"></td>
<td align="right">
<label><input id="UserOTP" name="UserOTP" type="password" class="textInputField" runat="server" size="23" autocomplete="off" /></label>
</td>
</tr>
</table>
</td>
</tr>
<!-- multiOTP addon end -->
...
-
Be sure that that the RDWeb Application Pool Account has read/write access to the installed multiOTP folder and subfolder (C:\multiOTP)
-
In order to have some logs, you will have to enable the log option in the multiotp.ini (C:\multiOTP\config\multiotp.ini):
...
log=1
...
- Be sure to restart IIS on your Windows RDWeb server
SAME WINDOWS GENERIC ACCOUNT WITH MULTIPLE TWO-FACTOR AUTHENTICATION ACCOUNTS
If you have to share the same generic Windows account, but you still need 2FA authentication for each user (like for a specific industrial computer in a 24/7/365 process), you can do the following configuration:
- Create (or sync with AD/LDAP) a multiOTP account for the generic account
- In multiOTP, set the description of the generic account to "multi_account" (if the account is synced by AD/LDAP, put the description in the AD/LDAP)
- Create (or sync with AD/LDAP) the accounts of each users
- On the login screen of the computer, use the following credentials:
- Account : generic Windows account
- Password : password of the generic Windows account
- OTP : [username of the specific user][space][OTP code of the specific user]
USING MULTIOTP ON LINUX FOR SSH LOGIN
-
Configure OpenSSH and PAM Configure your OpenSSH server to request the PassCode (PinCode+OTP) to the radius server. For this purpose we will use a radius PAM agent.
-
PAM configuration for OpenSSH server: Edit the file /etc/pam.d/sshd with this configuration. Comment the username/password line and add the PAM library. Be sure you have the PAM radius library.
#auth required pam_stack.so service=system-auth
auth required /lib/security/pam_radius_auth.so
- Specify the Radius Server. Create and edit a file called server in /etc/raddb with the Radius IP,port and the shared secret key.
#Server[:port] shared_secret timeout (s)
127.0.0.1 secret 1
10.1.23.1:1812 myfirstpass 6
- OpenSSH server (radiusd daemon) configuration: Edit /etc/sshd/sshd_config and be sure PAM is enabled and keyboard-interactive AuthN support.
UsePAM yes
PasswordAuthentication no
ChallengeResponseAuthentication yes
- Stop and start the OpenSSH server
/etc/init.d/sshd stop
/etc/init.d/sshd start
- You are now ready to test your login SSH with an software OTP :-)
HOW TO BUILD A RASPBERRY PI STRONG AUTHENTICATION SERVER ?
- If you want to download a multiOTP Raspberry Pi image ready to use, follow this URL:
https://download.multiOTP.net/raspberry/
Nano-computer name: multiotp
IP address: 192.168.1.44 (netmask: 255.255.255.0, default gateway: 192.168.1.1)
Username: pi
Password: raspberry
You can now flash the SD (check point 3) and 4) if needed), put the SD Card into the Raspberry Pi and boot it. You can go directly to point 15)
-
If you want to use a battery backed up Real Time Clock, install it now in your Raspberry Pi, the drivers for these models are included in the package:
- https://afterthoughtsoftware.com/products/rasclock
- http://www.cjemicros.co.uk/micros/products/rpirtc.shtml
- https://www.robotshop.com/ca/en/elecrow-ds3231-high-precision-rtc-clock-module-raspberry-pi-b.html
- https://learningdevelopments.co.nz/products/rtc-clock-module-for-raspberry-pi
-
Download the last image of Raspbian to be flashed
http://downloads.raspberrypi.org/raspbian_latest (currently 2017-09-07-raspbian-stretch.zip) -
Format your SD Card using the SD Card Association's formatting tool
https://www.sdcard.org/downloads/formatter_4/ -
Flash the raw image using UNIX tool dd or Win32DiskImager for Windows (http://sourceforge.net/projects/win32diskimager/files/latest/download).
This should take about 10 minutes. -
Copy all files from multiotp/raspberry/boot-part to the root of the SD Card
(it could overwrite some files like config.txt) -
When copy is done, eject the SD Card
-
Connect the Raspberry Pi to the local network
-
Put the SD card into the Raspberry Pi and boot it
-
Login directly on your Raspberry Pi, or using SSH, with the default username "pi" and the password "raspberry"
-
Launch the initial configuration by typing sudo raspi-config
-
Choose the following options
- Expand Filesystem
- Change User Password
- Internationalisation Options (if needed)
- Advanced Options
A2 Hostname (change the hostname to your favorite name, for example "multiotp")
-
Select Finish and answer "
" to reboot, ore type "sudo reboot" -
Login again directly (after about 30 seconds) on your Raspberry Pi, or using SSH, with the default username "pi" and your new password
-
Type "sudo /boot/install.sh"
Everything is done automatically (it will take about 35 minutes) and the Raspberry Pi is rebooted automatically -
The fixed IP address is set to 192.168.1.44, with a default gateway at 192.168.1.1
To adapt the network configuration, edit the file /etc/network/interfaces -
Congratulations! You have now an open source and fully OATH compliant strong two factors authentication server!
Surf on http(s)://192.168.1.44 to use the basic interface (admin / 1234) -
The default radius secret is set to myfirstpass for the subnet 0.0.0.0/0. To adapt the freeradius configuration, edit the file /etc/freeradius/clients.conf.
LDAP FILTER CUSTOMIZATION
You can customize your own LDAP filter. By default, the LDAP filter is empty. In the LDAP filter, you can use the following placeholders: {cn_identifier}, {username}, {groups_filtering}
OPENSSL OPTIONS FOR LDAPS
You can define how the certificate bundle is handled with the ldaptls_reqcert option. You can define a custom cipher suite with the ldaptls_cipher_suite option.
COMPATIBLE CLIENTS APPLICATIONS AND DEVICES
Open source project multiOTPCredentialProvider which is based on MultiotpCPV2RDP
from arcadejust and MultiOneTimePassword Credential Provider from Last Squirrel IT.
It works with Windows 7/8/8.1/10/11/2012(R2)/2016/2019/2022 in 64 bits.
The Credential Provider is using directly a local version of multiOTP which
can be configured as a client of a centralized multiOTP server (with caching support)
(https://github.com/multiOTP/multiOTPCredentialProvider)
Any firewall can connect with the Radius protocol to a multiOTP radius server. On advanced firewalls like the ZyXEL ZyWALL USG series, you can do some advanced things like:
- receiving a specific group for each multiOTP user (using the Filter-Id option). This is very useful to allow specific rules for some groups.
- VPN connections can be set-up to have a strong authentication (X-Auth).
- Strong Web authentication can be combined with specific firewall rules.
EXTERNAL PACKAGES AND SOFTWARE USED
barcode (MIT License)
Kreative Software
https://github.com/kreativekorp/barcode
CryptoJS (BSD New)
This product contains software provided by Jeff Mott
https://code.google.com/p/crypto-js/
FreeRADIUS / WinRADIUS for Windows (GPLv2)
This product contains software provided by FreeRADIUS team and its contributors.
https://freeradius.org/ - http://www.winradius.eu/
md5 JavaScript 2010 algorithm (BSD)
Joseph Myers, Paul Johnston, Greg Holt, Will Bond
https://www.myersdaily.org/joseph/javascript/md5-text.html
multiOTP Credential Provider
Credential Provider (64 bits) supporting Windows 7/8/8.1/10/11/2012(R2)/2016/2019/2022
SysCo / ArcadeJust / LastSquirrelIT
https://github.com/multiOTP/multiOTPCredentialProvider
Nginx (BSD)
This product contains software provided by Nginx, Inc. and its contributors.
https://nginx.org/
nssm service helper (public domain)
https://nssm.cc/
NuSOAP - PHP Web Services Toolkit (LGPLv2.1)
NuSphere Corporation
http://sourceforge.net/projects/nusoap/
PHP (PHP License)
Voluntary contributions made by many individuals on behalf of the PHP Group.
https://www.php.net/
phpseclib (MIT License)
MMVI Jim Wigginton
http://phpseclib.sourceforge.net/
PHP LDAP CLASS FOR MANIPULATING ACTIVE DIRECTORY (LGPLv2.1)
Scott Barnett - enhanced by SysCo
http://adldap.sourceforge.net/
PHP radius class (LGPLv3)
Andre Liechti
https://developer.sysco.ch/php/
PHP Syslog class (FREE "AS IS")
Andre Liechti
https://developer.sysco.ch/php/
status_bar.php (2010) (FREE "AS IS")
dealnews.com, Inc.
https://snipplr.com/view/29548
TCPDF (LGPLv3)
Nicola Asuni
https://tcpdf.org/
XML Parser Class (LGPLv3)
Adam A. Flynn - enhanced by SysCo
http://www.criticaldevelopment.net/xml/
XPertMailer package (LGPLv2.1)
Tanase Laurentiu Iulian
http://xpertmailer.sourceforge.net/
The source files can be downloaded at https://download.multiOTP.net/multiotp.zip
MULTIOTP PHP CLASS DOCUMENTATION
Have a look into the source code if you want to know how to use it, and you may also check multiotp.cli.header.php which implements the class.
MULTIOTP COMMAND LINE TOOL
multiOTP 5.10.1.2 (2026-01-05)
(c) 2010-2026 SysCo systemes de communication sa
http://www.multiOTP.net (you can try the [Donate] button ;-)
multiotp will check if the token of a user is correct, based on a specified
algorithm (currently Mobile-OTP (http://motp.sf.net), OATH/HOTP (RFC 4226)
and OATH/TOTP (RFC 6238) are implemented). PSKC format supported (RFC 6030).
Supported encryption methods are PAP and CHAP.
Yubico OTP format supported (44 bytes long, with prefixed serial number).
SMS-code are supported (current providers: afilnet,aspsms,clickatell,
clickatell2,ecall,intellisms,nexmo,nowsms,smseagle,
smsgateway,swisscom,telnyx,custom,exec).
Specific SMS sender program supported by specifying exec as SMS provider.
Google Authenticator base32_seed tokens must be of n*8 characters.
Google Authenticator TOTP tokens must have a 30 seconds interval.
Available characters in base32 are only ABCDEFGHIJKLMNOPQRSTUVWXYZ234567
To quickly create a user, use the -fastcreate option with the name of the user.
A quickly created user is compatible with Google Auth (30 seconds, 6 digits).
Depending on the prefix PIN option (WHICH IS ENABLED BY DEFAULT), a prefix PIN
will be requested or not before the displayed token.
If the PIN is not given, it is generated randomly.
To quickly create a user without a prefix PIN request, use -fastcreatenopin
To quickly create a user with a prefix PIN request, use -fastcreatewithpin
If a token is locked (return code 24), you have to resync the token to unlock.
Requesting an SMS token (put sms as the password), and typing the received
token correctly will also unlock the token.
The check will return 0 for a correct token, and the other return code means:
Return codes:
0 OK: Token accepted
7 INFO: User requires a token
8 INFO: User can be authenticated without a token (WITHOUT2FA)
9 INFO: Access Challenge returned back to the client
10 INFO: Access Challenge returned back to the client
11 INFO: User successfully created or updated
12 INFO: User successfully deleted
13 INFO: User PIN code successfully changed
14 INFO: Token has been resynchronized successfully
15 INFO: Tokens definition file successfully imported
16 INFO: QRcode successfully created
17 INFO: UrlLink successfully created
18 INFO: Static code request received
19 INFO: Requested operation successfully done
20 ERROR: User blacklisted
21 ERROR: User doesn't exist
22 ERROR: User already exists
23 ERROR: Invalid algorithm
24 ERROR: User locked (too many tries)
25 ERROR: User delayed (too many tries, but still a hope in a few minutes)
26 ERROR: This token has already been used
27 ERROR: Resynchronization of the token has failed
28 ERROR: Unable to write the changes in the file
29 ERROR: Token doesn't exist
30 ERROR: At least one parameter is missing
31 ERROR: Tokens definition file doesn't exist
32 ERROR: Tokens definition file not successfully imported
33 ERROR: Encryption hash error, encryption key is not matching
34 ERROR: Linked user doesn't exist
35 ERROR: User not created
36 ERROR: Token doesn't exist
37 ERROR: Token already attributed
38 ERROR: User is desactivated
39 ERROR: Requested operation aborted
40 ERROR: SQL query error
41 ERROR: SQL error
42 ERROR: They key is not in the table schema
43 ERROR: SQL entry cannot be updated
50 ERROR: QRcode not created
51 ERROR: UrlLink not created (no provisionable client for this protocol)
52 ERROR: HTML info not created
58 ERROR: File is missing
59 ERROR: Bad restore configuration password
60 ERROR: No information on where to send SMS code
61 ERROR: SMS code request received, but an error occurred during transmission
62 ERROR: SMS provider not supported
63 ERROR: This SMS code has expired
64 ERROR: Cannot resent an SMS code right now
65 ERROR: SMS code request not allowed
66 ERROR: Email code request not allowed
67 ERROR: No information on where to send Email code
68 ERROR: Email code request received, but an error occurred during transmission
69 ERROR: Failed to send email
70 ERROR: Server authentication error
71 ERROR: Server request is not correctly formatted
72 ERROR: Server answer is not correctly formatted
73 ERROR: Email SMTP server not defined
79 ERROR: AD/LDAP connection error
80 ERROR: Server cache error
81 ERROR: Cache too old for this user, account autolocked
82 ERROR: User not allowed for this device
88 ERROR: Device is not defined as a HA slave
89 ERROR: Device is not defined as a HA master
90 ERROR: AD/LDAP authentication failed
91 ERROR: Authentication failed (without2fa token not authorized here)
92 ERROR: Authentication failed (bad password)
93 ERROR: Authentication failed (time based token probably out of sync)
94 ERROR: API request error
95 ERROR: API authentication failed
96 ERROR: Push authentication timeout
97 ERROR: Push authentication denied
98 ERROR: Authentication failed (wrong token length)
99 ERROR: Authentication failed (and other possible unknown errors)
Usage:
PLEASE NOTE THAT BY DEFAULT, A PREFIX PIN IS REQUIRED.
multiotp user [prefix PIN]OTP (check the OTP (with prefix PIN) of the user)
multiotp -checkpam (to check with pam-script, using PAM_USER and PAM_AUTHTOK)
multiotp -requiresms user (generate and send an SMS token to the user)
multiotp user sms (send an SMS token to the user)
multiotp user [-chap-id=0x..] -chap-challenge=0x... -chap-password=0x...
(the first byte of the chap-password value can contain the chap-id value)
multiotp -fastcreate user [pin] (create a TOTP compatible token)
multiotp -fastcreatenopin user (create a user without a prefix PIN)
multiotp -fastcreatewithpin user [pin] (create a user with a prefix PIN)
multiotp -createga user base32_seed [pin] (create Google Auth user with TOTP)
multiotp -create user algo seed pin digits [pos|interval]
multiotp -create -token-id user token-id pin
token-id: id of the previously imported token to attribute to the user
user: name of the user (should be the account name)
algo: available algorithms are mOTP, HOTP, TOTP, YubicoOTP and without2FA
seed: hexadecimal or base32 seed of the token
pin: private pin code of the user
digits: number of digits given by the token
pos: for HOTP algorithm, position of the next awaited event
interval: for mOTP and TOTP algorithms, token interval time in seconds
multiotp -import tokens_definition_file [key|pass|key_file]
(auto-detect format)
multiotp -import-csv csv_tokens_file.csv (tokens definition in a file)
(serial_number;manufacturer;algorithm;seed;digits;interval_or_event)
multiotp -import-pskc pskc_tokens_file.pskc [key|pass|key_file]
(PSKC format, RFC 6030)
multiotp -import-yubikey yubikey_traditional_format_log.csv (YubiKey)
multiotp -import-dat importAlpine.dat (SafeWord/Aladdin/SafeNet tokens)
multiotp -import-alpine-xml alpineXml.xml (SafeWord/Aladdin/SafeNet)
multiotp -import-xml xml_tokens_definition_file.xml (old Feitian)
multiotp -import-sql tokens_definition_file.sql (ZyXEL/Authenex)
multiotp -iswithout2fa user (return 8 for WITHOUT2FA token, otherwise 7)
multiotp -delete-token token
multiotp -qrcode user png_file_name.png (only for TOTP and HOTP)
multiotp -urllink user (only for TOTP and HOTP, generate provisioning URL)
multiotp -htmlinfo user htlm_file_name.html (create file for one user) or
multiotp -htmlinfo htlm_file_folder (to create all files)
multiotp -scratchlist user (generate & display scratch passwords for the user)
multiotp -resync [-status] user token1 token2 (two consecutive tokens)
multiotp -update-pin user pin
multiotp -assign-token user token-id (assign the token to the user)
multiotp -remove-token user (remove the token assigned to the user)
multiotp -default-dialin-ip-mask (set the default dialin IP mask)
multiotp -dialin-ip-address user ip-address (set the user dialin IP address)
multiotp -dialin-ip-mask user ip-address (set the user dialin IP mask)
multiotp -[des]activate user
multiotp -[un]lock user
multiotp -delete user
multiotp -user-info user
multiotp -config option1=value1 option2=value2 ... optionN=valueN
options are autoresync: [0|1] enable/disable autoresync during login
attributes-to-encrypt: specific attributes list to encrypt, must be
surrounded by *, like '*token_seed*user_pin*'
backend-type: backend storage type (files|mysql|pgsql)
challenge-response-enabled: [0|1] enable/disable Challenge-Response
clear-otp-attribute: attribute to return for the clear OTP
(for example 'ietf|2' for TekRADIUS)
debug: [0|1] enable/disable enhanced log information
(code result are also displayed on the console)
debug-prefix: add a prefix when using the debug mode
(for example 'Reply-Message := ' for FreeRADIUS)
default-2fa-digits: [6-16] set the default amount of OTP digits
default-pin-digits: [4-32] set the default amount of PIN digits
default-request-prefix-pin: [0|1] prefix PIN enabled/disabled by default
default-request-ldap-pwd: [0|1] LDAP/AD password enabled/disabled by default
display-log: [0|1] enable/disable log display on the console
group-attribute: attribute to return for the group membership
(for example 'Filter-Id' for FreeRADIUS)
ignore-no-prefix-cp: [0|1] Disable 'no prefix' for Credential Provider
issuer: default name of the issuer of the (soft) token
ldap-account-suffix: LDAP/AD account suffix
ldap-activated: [0|1] enable/disable LDAP/AD support
ldap-base-dn: LDAP/AD base
ldap-bind-dn: LDAP/AD bind
ldap-cn-identifier: LDAP/AD cn identifier (default is sAMAccountName)
ldap-default-algorithm: [totp|hotp|motp|without2fa] default algorithm
for new LDAP/AD users
ldap-domain-controllers: LDAP/AD domain controller(s), comma separated
ldap-filter: LDAP/AD filter customization (check documentation)
ldap-group-attribute: LDAP/AD group attribute (default is memberOf)
ldap-group-cn-identifier: LDAP/AD group cn identifier
(default is sAMAccountName for AD, cn for LDAP)
ldap-in-group: LDAP/AD group(s) in which users should be in
ldap-network-timeout: LDAP/AD network timeout (in seconds)
ldap-port: LDAP/AD port (default is set to 389)
ldap-server-password: LDAP/AD server password
ldap-server-type: [1|2|4] LDAP/AD server type
(1=AD, 2=standard LDAP, 4=eDirectory)
ldap-ssl: [0|1] enable/disable LDAP/AD SSL connection
ldap-synced-user-attribute: LDAP/AD attribute used as the account name
ldap-time-limit: LDAP/AD number of sec. to wait for search results
ldap-users-dn: LDAP/AD users DN (optional, use base-dn if empty)
(you can put several DN separated by semicolons)
ldap-without2fa-in-group: Special LDAP/AD group(s) for without2fa users
ldaptls-reqcert: ['auto'|'never'|''|...] how to perform the LDAP TLS
server certificate checks (LDAPTLS_REQCERT)
'auto' means 'never' for Windows and '' for Linux
ldaptls-cipher-suite: ['auto'|''|...] which cipher suite is used for the
LDAP TLS connection (LDAPTLS_CIPHER_SUITE)
'auto' means '' for PHP higher than 5.x and
'NORMAL:!VERS-TLS1.2' for PHP 5.x and before
log: [0|1] enable/disable log permanently
log-forced-in-file: [0|1] enable/disable log always in file (no DB)
multiple-groups: [0|1] enable/disable multiple groups per user
radius-reply-attributor: [ += |=] how to attribute a value
('=' for TekRADIUS, ' += ' for FreeRADIUS)
radius-reply-separator: [,|:|;|cr|crlf] returned attributes separator
('crlf' for TekRADIUS, ',' for FreeRADIUS)
self-registration: [1|0] enable/disable self-registration of tokens
server-cache-level: [1|0] enable/disable cache from server to client
server-cache-lifetime: lifetime in seconds of the cached information
server-secret: shared secret used for client/server operation
server-timeout: timeout value for the connection to the server
server-type: [xml] type of the server
(only xml server type is able to do caching)
server-url: full url of the server(s) for client/server mode
(server_url_1;server_url_2 is accepted)
sms-api-id: SMS API id (if any, give your REST/XML API id)
with exec as provider, define the script to call
(available variables: %from, %to, %msg)
sms-digits: [6-32] set the default amount of SMS digits
sms-ip: IP address of the SMS server (for inhouse server)
sms-challenge-enabled: [0|1] enable/disable SMS challenge
sms-message: SMS message to display before the OTP
sms-originator: SMS sender (if authorized by provider)
sms-password: SMS account password
sms-port: Port of the SMS server (for inhouse server)
sms-provider: SMS provider (aspsms,clickatell,clickatell2,
intellisms,nexmo,nowsms,smseagle,swisscom,telnyx,
custom,exec)
sms-userkey: SMS account username or userkey
Custom SMS provider only
sms-url: URL(s) of the custom SMS provider
(multiple URLs can be separated by [space],
supported variables : %api_id,%username,
%password,%from,%to,%msg,%ip,%url)
sms-send-template: POST template content for custom SMS provider
(supported variables : %api_id,%username,
%password,%from,%to,%msg)
sms-method: [GET|POST|POST-JSON|POST-XML] send method
sms-encoding: [ISO|UTF] characters encoding
sms-status-success: status result if successful (partial supported)
(example: 20, for any 20x result)
sms-content-success: content result if successful (partial supported)
(example: "status": "0")
sms-content-encoding: [''|'HTML'|'URL'|'QUOTES'] Special content encoding
sms-no-double-zero: [0|1] Remove double zero for international numbers
sms-basic-auth: [0|1] Enable basic HTTP authentication
(sms-userkey:sms-password)
sql-server: SQL server (FQDN or IP)
sql-username: SQL username
sql-password: SQL password
sql-database: SQL database
sql-config-table: SQL config table, default is multiotp_config
sql-devices-table: SQL devices table, default is multiotp_devices
sql-log-table: SQL log table, default is multiotp_log
sql-tokens-table: SQL tokens table, default is multiotp_tokens
sql-users-table: SQL users table, default is multiotp_users
sync-delete-retention-days: days of retention before deleting a no more
existing AD/LDAP user (0=disable only, no delete)
tel-default-country-code: Default country code for phone number
text-sms-challenge: Text displayed for the SMS challenge
text-token-challenge: Text displayed for the challenge
token-serial-number-length: Length of the serial number of the tokens
(used for self-registration)
multiotp -initialize-backend (when all options are set, it will initialize
the backend, including creating the tables)
multiotp -set user option1=value1 option2=value2 ... optionN=valueN
options are email: update the email of the user
cache-level: [1|0] enable/disable cache for this user on the client
cache-lifetime: set/update lifetime in seconds of cached information
description: set a description to the user, used for example during
the QRcode generation as the description of the account
group: set/update the group of the user
ldap-pwd: [0|1] the LDAP/AD password is used instead of the pin
pin: set/update the private pin code of the user
prefix-pin: [0|1] the pin and the token must by merged by the user
(if your pin is 1234 and your token displays 5556677,
you will have to type 1234556677)
sms: set/update the sms phone number of the user
Authentication parameters:
-calling-ip=Framed-IP-Address
-calling-mac=Calling-Station-Id
-chap-challenge=0x... CHAP-Challenge
-chap-id=0x... Optional CHAP-Id
(the first byte of the chap-password value should contain this value)
-chap-password=0x... CHAP-Password
-mac=Called-Station-Id
-ms-chap-challenge=0x... MS-CHAP-Challenge
-ms-chap-response=0x... MS-CHAP-Response
-ms-chap2-response=0x... MS-CHAP2-Response
-src=Packet-Src-IP-Address
-state=State
-tag=Client-Shortname
-usersid=Windows SID of the user (provided by multiOTP Credential Provider)
Client/server inline parameters:
-server-cache-level=[1|0] enable/disable cache from server to client
-server-secret=shared secret used for client/server operation
-server-timeout=timeout value for the connection to the server
-server-url=full url of the server(s) for client/server mode
(-server-url=server_url_1;server_url_2 is accepted)
AD/LDAP integration:
multiotp -ldap-check : check the AD/LDAP connection
multiotp -ldap-user-info user : print the AD/LDAP information for this user
multiotp -ldap-users-list : print the list of selected the AD/LDAP users
multiotp -ldap-users-sync : launch the AD/LDAP synchronization
(will check first if a lock file is present)
multiotp -sync-delete-retention-days=days of retention before deleting a no
more existing AD/LDAP user
(0=disable only the user, do not delete)
Backup/restore commands:
multiotp -backup-config password [file-name]
multiotp -restore-config password [file-name]
By default, the file name is multiotp.cfg in the current folder.
Other information commands:
multiotp -phpinfo : print the current PHP version
multiotp -showlog : print the log entries
multiotp -clearlog : clear the log entries
multiotp -tokenslist : print the list of the tokens
multiotp -userslist : print the list of the users
multiotp -lockeduserslist : print the list of the locked users
Special commands:
multiotp -purge-lock-folder
This will delete the .lock files in the lock folder.
.lock files are used to handle multiple instances.
They are valid by default for 5 minutes.
multiotp -purge-ldap-cache-folder
This will delete the .cache files in the AD/LDAP cache folder.
.cache files are used to speed up the AD/LDAP synchronizsation process.
They are valid by default for 60 minutes.
multiotp -log-error "log information"
This will write "log information" error in the default log storage.
multiotp -log-info "log information"
This will write "log information" info in the default log storage.
Other parameters:
-base-dir=/full/path/to/the/main/folder/of/multiotp/
(if the script folder is wrongly detected, this will fix the issue)
Switches:
-debug Enhanced log information activated and code result on console
(the permanent state of debug can be set with -config debug=1)
-display-log Log information will also be displayed on the console
(the permanent state can be set with -config display-log=1)
-help Display this help page
-keep-local Keep local user even if the server doesn't have it
(if the server doesn't have it, the local one will be checked)
-log Log operation in the log subdirectory or in the database
(the permanent state of log can be set with -config log=1)
-network-info Display network info (mode, ip, mask, gateway, dns1, dns2)
-nt-key-only Return ONLY NT_KEY to the radius server
-param All parameters are logged for debugging purposes
-php-version Display the current version of the running PHP interpreter
-request-nt-key Return NT_KEY with the other attributes to the radius server
-error-codes List all error codes
-status Display a status bar during resynchronization
-version Display the current version of the library
Examples:
multiotp -fastcreate gademo
multiotp -debug -createga gauser 2233445566777733
multiotp -debug -create alan TOTP 3683453456769abc3452 2233 6 60
multiotp -debug -set alan prefix-pin=1
multiotp -debug -create anna TOTP 56821bac24fbd2343393 4455 6 30
multiotp -debug -set anna prefix-pin=0
multiotp -debug -create john HOTP 31323334353637383930 5678 6 137
multiotp -debug -create -token-id rick 2010090201901 2345
multiotp -log -create jimmy mOTP 004f5a158bca13984d349a7f23 1234 6 10
multiotp -set gademo description="VPN code for gademo"
multiotp -set jimmy sms=41791234567
multiotp jimmy sms
multiotp -scratchlist gademo
multiotp -display-log -log -debug jimmy ea2315
multiotp -display-log -log anna 546078
multiotp -display-log -log -checkpam
multiotp john 5678124578
multiotp -debug -import tokens.pskc "1234 5678 9012 3456 7890 1234 5678 9012"
multiotp -debug -import-pskc tokens.pskc "qwerty"
multiotp -debug -import 10OTP_data01_upgrade.sql
multiotp -debug -import-dat importAlpine.dat
multiotp -debug -qrcode gademo gademo.png
multiotp -debug -urllink john
multiotp -resync john 5678456789 5678345231
multiotp -resync -status anna 4455487352 4455983513
multiotp -update-pin alan 4417
multiotp -config debug-prefix="Reply-Message := "
multiotp -config server-cache-level=1 server-cache-lifetime=15552000
multiotp -config server-secret=MySharedSecret server-type=xml
multiotp -config server-timeout=3
multiotp -config server-url=http://my.server/multiotp/;my.server2:8112/secure/
multiotp -config sms-provider=clickatell sms-userkey=CL1 sms-password=PASS
multiotp -config sms-api-id=1234567
multiotp -config sms-message="Your SMS-code is:" sms-originator=Company
multiotp -config sms-message="Type %s as code" sms-originator=0041797654321
multiotp -config sms-provider=exec sms-api-id="/path/to/app %from %to "%msg""
multiotp -config token-serial-number-length=10,12
multiotp -config backend-type=mysql sql-server=fqdn.or.ip sql-database=dbname
multiotp -config sql-username=user sql-password=pass
multiotp -initialize-backend
multiotp -config backend-type=pgsql sql-server=fqdn.or.ip sql-database=dbname
multiotp -config sql-schema=schemaname sql-username=user sql-password=pass
multiotp -initialize-backend
multiOTP can be combined with a Raspberry Pi (http://www.raspberrypi.org/) in
order to have a very low budget strong authentication device. Please look at
the readme file in order to learn how to set it up in a few steps.
The distribution is already optimized with an HTTP proxy to speed up the CLI.
A ready to use binary image can be downloaded at https://download.multiOTP.net/
multiOTP open source is also available as a ready to use virtual appliance in
standard OVA, VMware optimized or Hyper-V formats.
Virtual appliance images can be downloaded at https://download.multiOTP.net/
multiOTP web service is working fine with any web server supporting PHP.
- nginx is a light one under Linux and Windows (http://nginx.org/)
- Mongoose is a light one under Windows (http://code.google.com/p/mongoose/)
- and many others like Apache HTTP Server (http://httpd.apache.org/)
multiOTP is working fine with FreeRADIUS under Linux (http://freeradius.org/)
multiOTP is working fine under Windows with WinRADIUS, a port of FreeRADIUS
(http://winradius.eu/)
When used with TekRADIUS (http://www.tekradius.com) the External-Executable
must be called like this: C:\multiotp\multiotp.exe %ietf|1% %ietf|2%
Check the readme file for more information
Some of other products and services based on multiOTP:
multiOTP Credential Provider (https://download.multiotp.net/)
Open-source Credential Provider for Windows Logon, based on MultiotpCPV2RDP
MultiotpCPV2RDP (https://github.com/arcadejust/MultiotpCPV2RDP)
Open-source Credential Provider for Windows Logon, by arcadejust
mOTP-CP (https://goo.gl/Y8g4ON)
Open-source Credential Provider for Windows Logon, by Last Squirrel IT
ownCloud OTP (https://goo.gl/mKjt43)
Open-source One Time Password app for ownCloud (http://owncloud.org)
UserCredential (https://github.com/cymapgt/UserCredential)
Open-source authentication PHP library by Cyril Ogana
multiOTP Pro 501V (https://www.multiotp.com)
Pro version virtual appliance, with full web GUI, 1 free user licence
multiOTP Pro 420B (https://www.multiotp.com)
Pro version tiny hardware device (BeagleBone Black), with full web GUI
multiOTP Enterprise (http:s//firmware.multiotp.com/enterprise/)
Enterprise version virtual appliance, with HA master-slave support,
also available as a Raspberry Pi image file
secuPASS.net (https://www.secuPASS.net)
simple SMS trusting service for free WLAN Hotspot
Don't hesitate to send us an email if your product uses our multiOTP library.
Visit https://forum.multiotp.net/ for additional support
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Most active day: January 28th, 2026 • 2 contributions
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Starred matthias-straub/Filtering-Multi-DNS-Forwarder
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