Windows

• Draft Crypto Analyzer
  Crypto algorithms detection and analysis tool
• EFSeal
  The utility to enforce protection for Microsoft Encrypting File System
• Smart Card Digging Utilities
  A set of simple tools to explore smart cards.
• 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
• Zipofig. A story of a ZIP archive recovery
  A story about recovering data from a ZIP archive with broken structure