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The RIPEMD-160 Cryptographic Hash Function

By

Antoon Bosselaers, Hans Dobbertin and Bart Preneel

, January 01, 1997

Cryptographic hash functions are an essential building block for applications that require data integrity. In this article, our authors propose that the RIPEMD-160 hash function is a secure replacement for MD4 and MD5.
Dr. Dobb's Journal January 1997: Examining the Birthday Paradox

Examining the Birthday Paradox

By Antoon Bosselaers, Hans Dobbertin, Bart Preneel

Dr. Dobb's Journal January 1997

Figure 1: Outline of the compression function of RIPEMD-160. Inputs are a 16-word message block Xi[0..15] and a 5-word internal state h0h1h2h3h4, output is a new value of the internal state. and permute the order of the words within the message block Xi[0..15], that is, they permute the indices 0..15; 2 means that is applied twice. The fj's are 5 nonlinear functions and the j's and 'j's are 10 additive constants.

Copyright © 1997, Dr. Dobb's Journal



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