This tool can create one-time-password values based on HOTP (RFC 4226: HOTP: An HMAC-Based One-Time Password Algorithm), TOTP (RFC 6238: TOTP: Time-Based One-Time Password Algorithm) and OCRA (RFC 6287: OCRA: OATH Challenge-Response Algorithm) standards, and also supports client side of OAuth protocols (1.0a, 2.0).
Encrypting, anonymous, unlimited size message transfer system
AleHu is an open source encrypted message transfer system that encompasses both server (PHP) and client software (Java).
Give it a shot: You can try out AleHu by simply running the client using the preconfigured AleHu test server!
For further details and instructions on how to quickly install and run AleHu, have a look at the documentation in the Wiki section.
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