[Resource Topic] 2010/413: Collisions for 72-step and 73-step SHA-1: Improvements in the Method of Characteristics

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Title:
Collisions for 72-step and 73-step SHA-1: Improvements in the Method of Characteristics

Authors: E. A. Grechnikov

Abstract:

We present a brief report on the collision search for the reduced SHA-1. With a few improvements to the De Cannière-Rechberger automatic collision search method we managed to construct two new collisions for 72- and 73-step reduced SHA-1 hash function.

ePrint: https://eprint.iacr.org/2010/413

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