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
2023-09-22 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: {MultiOtpDisplayName} 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
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
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: Dockerfile available
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

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   ***
*******************************************************************************

/usr/local/bin/
/usr/local/bin/multiotp (contains multiotp.php)
/usr/local/bin/multiotp/templates

/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, ...)

$multiotp = new Multiotp('DefaultCliEncryptionKey', $initialize_backend, $folder_path);

$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');

    # 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  
    }

    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  

    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  

    #  
    # 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  
            }  
        }  
    }  

    #  
    # Handle multiOTP (https://www.multiotp.net/) for some clients.  
    client 0.0.0.0 {  
        netmask = 0  
        secret = multiotpsecret  
    }  

# 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
}

ln -s /etc/freeradius/3.0/mods-available/multiotp /etc/freeradius/3.0/mods-enabled/multiotp

"mschap {"

"mschap multiotpmschap {"

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}'"

ln -s /etc/freeradius/3.0/mods-available/multiotpmschap /etc/freeradius/3.0/mods-enabled/multiotpmschap

filename =

filename = /path/to/multiotp/scripts/multiotp.pl

perl_flags = "-U"

ln -s /etc/freeradius/3.0/mods-available/perl /etc/freeradius/3.0/mods-enabled/perl

my $output=`/usr/local/bin/multiotp/multiotp.php -base-dir='/usr/local/bin/multiotp/' "$multiotp_

my $output=`/path/to/multiotp.php -base-dir='/path/to/multiotp/' "$multiotp_

# 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
        }
    }
}

    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

    # Handle multiotp authentication
    multiotp

Auth-Type multiotp {
    multiotp
} #multiotp
Auth-Type multiotpmschap {
    multiotpmschap
} #multiotpmschap
Auth-Type Perl { #multiotp
    perl #multiotp
} #multiotp

    perl #multiotp

    # Handle multiotp authentication
    multiotp

    Auth-Type multiotp {
        multiotp
    } #multiotp
    Auth-Type multiotpmschap {
        multiotpmschap
    } #multiotpmschap
    Auth-Type Perl { #multiotp
        perl #multiotp
    } #multiotp
	

   <?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 -->
           ...

   ...
   <% @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>
   ...

   ...
   // Localizable Text
   //
   // multiOTP addon begin
  const string L_OTPLabel_Text = "OTP:";
   // multiOTP addon end
   const string L_DomainUserNameLabel_Text = "Domain\\user name:";
   ...

   ...
       // 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
   ...

   ...
   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
   }
   ...

   ...
           <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 -->
   ...

   ...
   log=1
   ...

   #auth required pam_stack.so service=system-auth
   auth required /lib/security/pam_radius_auth.so

   #Server[:port]  shared_secret      timeout (s)
   127.0.0.1       secret             1
   10.1.23.1:1812  myfirstpass        6

   UsePAM yes
   PasswordAuthentication no
   ChallengeResponseAuthentication yes

   /etc/init.d/sshd stop
   /etc/init.d/sshd start

   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

    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 5.9.8.0 (2024-08-26)
(c) 2010-2024 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 -fastecreatewithpin

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 
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: Authentication failed (CRC error) 
97 ERROR: Authentication failed (wrong private id) 
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 -fastecreatewithpin 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-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


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
 -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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