Welcome to the resource topic for 2006/319
Title:
Forgery and Partial Key-Recovery Attacks on HMAC and NMAC Using Hash Collisions
Authors: Scott Contini, Yiqun Lisa Yin
Abstract:In this paper, we analyze the security of HMAC and NMAC, both of which are hash-based message authentication codes. We present distinguishing, forgery, and partial key recovery attacks on HMAC and NMAC using collisions of MD4, MD5, SHA-0, and reduced SHA-1. Our results demonstrate that the strength of a cryptographic scheme can be greatly weakened by the insecurity of the underlying hash function.
ePrint: https://eprint.iacr.org/2006/319
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