Cryptography

Links

• Hashing security
• The Mathematical Guts of RSA Encryption
• Disk encryption

Password hashes

MD5

Hexadecimal, normally 32 chars?

• http://en.wikipedia.org/wiki/MD5

crypt

man 3 crypt

On freebsd

• http://www.freebsd.org/doc/en/books/handbook/crypt.html