Cryptography

Cryptography is an interdisciplinary subject, drawing from several fields. Older forms of cryptography were chiefly concerned with patterns in language. More recently, the emphasis has shifted, and cryptography makes extensive use of mathematics, particularly discrete mathematics, including topics from number theory, information theory, computational complexity, statistics and combinatorics. Cryptography is also considered a branch of engineering, but it is considered to be an unusual one as it deals with active, intelligent and malevolent opposition (see cryptographic engineering and security engineering). Cryptography is a tool used within computer and network security.

External links

• Cryptography introduction, with several examples
• International Association for Cryptologic Research
• Helger Lipmaa's cryptography pointers
• RSA Laboratories' FAQ About today's cryptography essentially elementary coverage
• sci.crypt mini-FAQ (more recent)
• Savard's glossary an extensive and detailed view of cryptographic history with emphasis on crypto devices
• Open source project CrypTool - Exhaustive educational tool about cryptography and cryptanalysis, freeware.
• Cryptography World - A very basic guide to cryptography and key management.
• Handbook of Applied Cryptography (Free to download as .pdf)
• Techworld Elementary Primer: What is Encryption?
• Links for password-based cryptography
• Code Cracker Online tool to Crack many classic encryption codes (up to the XIX century)
• Crypto Law Survey Extensive survey of existing and proposed laws and regulations on cryptography by legal expert Dr. Bert-Jaap Koops (Tilburg University)
• NSA Cryptologic Games and Puzzles for Kids
• Beginners' Guide to Cryptography