cryptography

• On Smart Cards Security
  The talk about smart cards security on example of broken Cryptoflex cards
• A byte-oriented AES-256 implementation
  A portable C implementation of AES-256 block cipher, released under OpenBSD license
• Draft Crypto Analyzer
  Crypto algorithms detection and analysis tool
• Using hard mathematical problems to prevent spam
  A note about simple idea to prevent spam
• QRN. Practical random numbers generation
  Article about a very simple and effective QRN PRNG, suitable for most practical applications.
• Sapparot
  A simple 32-bit pseudorandom number generator
• Sapparot-2
  A variant of Sapparot, a simple 32-bit pseudorandom number generator
• On Single Cycle Functions
  The reference note about research on single cycle functions (aka T-functions)
• Undocumented Windows cryptography
  About a set of internal cryptographical functions in Windows
• Yasmarang
  Yet another 32-bit pseudorandom number generator
• Zcipher Algorithm
  A toy block cipher for fun and experiments.