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MD4 Overview

MD4 (Message Digest Algorithm 4) is a secure hash algorithm developed by R. Rivest in 1990. The algorithm takes a message of arbitrary length and produces a 128-bit message digest.

Attacks on versions of MD4 were developed by Den Boer and Bosselaers and others. Dobbertin has shown how collisions for the full version of MD4 can be found in under a minute on a typical PC. Now MD4 is considered broken and can be used mostly as a checksum algorithm.


The MD4 algorithm is designed to be fast on 32-bit machines.

The MD4 algorithm is specified in RFC1186.

CMD4 Overview   |   MD4 API Overview   |   Type Library Overview   |   Useful Links   |   HashCalc


See Also    QuickHash Library Overview



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