[Resource Topic] 2004/264: Musings on the Wang et al. MD5 Collision

Welcome to the resource topic for 2004/264

Title:
Musings on the Wang et al. MD5 Collision

Authors: Philip Hawkes, Michael Paddon, Gregory G. Rose

Abstract:

Wang et al. caused great excitement at CRYPTO2004
when they announced a collision for MD5~\cite{R92_MD5}.
This paper is examines the internal differences and conditions
required for the attack to be successful. There are a large number
of conditions that must be satisfied, thus indicating Wang at al. have found a
clever way to generate message pairs for which the conditions are
satisfied.
The large number of conditions suggests that an attacker cannot use these differentials to
cause second pre-image
attacks with complexity less than generic attacks. Initial
examination also suggests that an attacker cannot cause such
collisions for HMAC-MD5 with complexity less than generic attacks.

ePrint: https://eprint.iacr.org/2004/264

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