source code

• A byte-oriented AES-256 implementation
  A portable C implementation of AES-256 block cipher, released under OpenBSD license
• On Single Cycle Functions
  The reference note about research on single cycle functions (aka T-functions)
• Smart Card Digging Utilities
  A set of simple tools to explore smart cards.
• Sudokuza
  All your Sudoku puzzles are belong to us
• Undocumented Windows cryptography
  About a set of internal cryptographical functions in Windows
• How to write your own WinZip
  About a set of once undocumented Windows Native API functions to do data compression
• Zcipher Algorithm
  A toy block cipher for fun and experiments.
• Zipofig. A story of a ZIP archive recovery
  A story about recovering data from a ZIP archive with broken structure