Message Digest 5 - meaning and definition. What is Message Digest 5
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What (who) is Message Digest 5 - definition

OBSOLETE CRYPTOGRAPHIC HASH FUNCTION
Message Digest Algorithm 2; MD2 (cryptography)

Message Digest 5      
<messaging> The message digest function defined in {RFC 1321}. (1996-08-04)
MD5         
  • Diagram showing use of MD5 hashing in file transmission
MESSAGE-DIGEST HASHING ALGORITHM
Md5; MD5 - A Message Digest Algorithm; .md5; MD5 Hash; Md5 Hash; MD5 hash; Message Digest Algorithm 5; MD5 encoder; MD5 attack; MD5s
MD5         
  • Diagram showing use of MD5 hashing in file transmission
MESSAGE-DIGEST HASHING ALGORITHM
Md5; MD5 - A Message Digest Algorithm; .md5; MD5 Hash; Md5 Hash; MD5 hash; Message Digest Algorithm 5; MD5 encoder; MD5 attack; MD5s
Message Digest [Additional explanations: algorithm] 5 (Reference: RFC 1321)

Wikipedia

MD2 (hash function)

The MD2 Message-Digest Algorithm is a cryptographic hash function developed by Ronald Rivest in 1989. The algorithm is optimized for 8-bit computers. MD2 is specified in IETF RFC 1319. The "MD" in MD2 stands for "Message Digest".

Even though MD2 is not yet fully compromised, the IETF retired MD2 to "historic" status in 2011, citing "signs of weakness". It is deprecated in favor of SHA-256 and other strong hashing algorithms.

Nevertheless, as of 2014, it remained in use in public key infrastructures as part of certificates generated with MD2 and RSA.