Welcome to the resource topic for 2003/162
Title:
Cryptanalysis of the Alleged SecurID Hash Function
Authors: Alex Biryukov, Joseph Lano, Bart Preneel
Abstract:The SecurID hash function is used for authenticating users to a
corporate computer infrastructure. We analyse an alleged
implementation of this hash function. The block cipher at the
heart of the function can be broken in few milliseconds on a PC
with 70 adaptively chosen plaintexts. The 64-bit secret key of
10$%$ of the cards can be discovered given two months of token
outputs and 2^{48} analysis steps. A larger fraction of cards
can be covered given more observation time.
ePrint: https://eprint.iacr.org/2003/162
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