MD4


 * This is about the hash function; the Quake 3-D model file is at MD4 (Quake).

MD4 is a 128-bit cryptographic hash function. It has known weaknesses that make it insecure for some purposes.

Specifications

 * RFC 1186 (obsolete)
 * RFC 1320 (retired by RFC 6150)

Software

 * OpenSSL

Links

 * Wikipedia article