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Applications Of Surjection On Narrow-pipe Hash Functions
hash surjection codomain entropy narrow-pipe
2010/12/22
Recently several reports of Cryptology ePrint Archive give some analysis and conclusions,that for a narrow-pipe hash function the entropy and codomain will reduce greatly. And even generic collision a...
Generic Collision Attacks on Narrow-pipe Hash Functions Faster than Birthday Paradox, Applicable to MDx, SHA-1, SHA-2, and SHA-3 Narrow-pipe Candidates
hash functions collisions generic attack narrow-pipe design
2010/8/11
In this note we show a consequence of the recent observation that narrow-pipe hash designs manifest an abberation from ideal random functions for finding collisions for those functions with complexiti...
Practical consequences of the aberration of narrow-pipe hash designs from ideal random functions
Practical consequences narrow-pipe hash designs ideal random functions
2010/7/14
In a recent note to the NIST hash-forum list, the following observation was presented: narrow-pipe hash functions differ significantly from ideal random functions $H:\{0,1\}^{N} \rightarrow \{0,1\}^n$...