Algorithm specification and its implementation in 'C'.

A 160-bit cryptographic hash function designed as a secure replacement MD4, MD5, and RIPEMD.

MD5, SHA-1 and HMAC information, resources and API's.

Algorithm specification and its implementation in 'C' and in BASIC.

Optimized for 64-bit processors and produces 128, 160, or 192-bit hashes.

Nice online application to produce a MD5 message digest. Supports copy-and-paste function. Includes Java source code.

Online calculator that performs MD5, SHA1, SHA-256, SHA-384, and SHA-512 hash functions.

A 512-bit hashing function, submitted to NESSIE and selected as finalist. Now also proposed for inclusion in the ISO 10118-3 standard (revision).