Runs on all versions of Windows, and also on Linux using Wine.
Features at a glance
- Simple for anyone to use: Just type a message, click Encrypt, and go
- Handles messages and file attachments together easily
- End-to-end encryption, performed entirely on the user's machine
- No dependence on any specific intermediary channel - works with any communication method available
- Uses three strong cryptographic algorithms in combination to triple-protect data
- Optional steganography feature for embedding encrypted data within a Jpeg image
- No installation needed - fully portable application can be run from anywhere
- Unencrypted data is never written to disk - unless requested by the user
- Multiple input/output modes for convenient operation
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Technical details
- Open source, written in C++
- AES/Rijndael, Twofish and Serpent ciphers (256-bit keysize variants), cascaded together in CTR mode for triple-encryption of messages and files
- HMAC-SHA-256 for construction of message authentication code
- PBKDF2-HMAC-SHA256 for derivation of separate AES, Twofish and Serpent keys from user-chosen passphrase
- Cryptographically safe pseudo-random number generator ISAAC for production of Initialization Vectors (AES/Twofish/Serpent) and Salts (PBKDF2)
Gloss