The MD4 message-digest algorithm is specified by RFC 1320 [1] This algorithm takes an arbitrary quantity of data and generates a 128-bit message digest from the input. The MD4 algorithm is faster but potentially weaker than the related MD5 algorithm [2].

A tcl-only implementation of MD4 is now part of tcllib. Documentation can be found at http://tcllib.sourceforge.net/doc/md4.html

Examples

 % package require md4
 1.0.4
 % base64::encode [md4::md4 {}]
 MdbP4NFq6TG3PFnX4MCJwA==
 % md4::md4 -hex {}
 31D6CFE0D16AE931B73C59D7E0C089C0
 % base64::encode [md4::md4 a]
 veUssx3jPkYkXgX729b7JA==
 % md4::md4 -hex a
 BDE52CB31DE33E46245E05FBDBD6FB24

Note that by default, the [md4::md4] command produces binary output strings. The -hex option makes it produce output in a human-readable format, and it is also quite common to use base64-encoding as that is more compact.

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See also md5, sha1, sha2, RIPEMD, ntlm

[ Category Cryptography | Category Package, subset tcllib ]