md5

Message Digest hash

md5 x    md5[x]

Where x is a string, returns as a bytestream its MD5 (Message-Digest algorithm 5) hash.

q)md5 "this is a not so secret message"
0x6cf192c1938b79012c323fa30e62787e

MD5 is a widely used, Internet standard (RFC 1321), hash function that computes a 128-bit hash, commonly used to check the integrity of files. It is not recommended for serious cryptographic protection, for which strong hashes should be used.

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Strings