Title: Handbook of applied cryptography
Subjects: Access control, Computers, Cryptography, Handbooks, manuals, Ordinateurs, Guides, manuels, Accès, Contrôle, Cryptographie, Security, Computers--access control--handbooks, manuals, etc, Cryptography--handbooks, manuals, etc, Qa76.9.a25 m463 1997, 005.8/2, Long Now Manual for Civilization