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Wednesday, January 6, 2016

CenoCipher - Easy-To-Use, End-To-End Encrypted Communications Tool



CenoCipher is a free, open-source, easy-to-use tool for exchanging secure encrypted communications over the internet. It uses strong cryptography to convert messages and files into encrypted cipher-data, which can then be sent to the recipient via regular email or any other channel available, such as instant messaging or shared cloud storage.

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

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)

Version History (Change Log)

Version 4.0 (December 05, 2015)

  • Drastically overhauled and streamlined interface
  • Added multiple input/output modes for cipher-data
  • Added user control over unencrypted disk writes
  • Added auto-decrypt and open-with support
  • Added more entropy to Salt/IV generation

Version 3.0 (June 29, 2015)

  • Added Serpent algorithm for cascaded triple-encryption
  • Added steganography option for concealing data within Jpeg
  • Added conversation mode for convenience
  • Improved header obfuscation for higher security
  • Increased entropy in generation of separate salt/IVs used by ciphers
  • Many other enhancements under the hood

Version 2.1 (December 6, 2014)

  • Change cascaded encryption cipher modes from CBC to CTR for extra security
  • Improve PBKDF2 rounds determination and conveyance format
  • Fix minor bug related to Windows DPI font scaling
  • Fix minor bug affecting received filenames when saved by user

Version 2.0 (November 26, 2014)

  • Initial open-source release
  • Many enhancements to encryption algorithms and hash functions

Version 1.0 (June 10, 2014)

  • Original program release (closed source / beta)

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