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A Novel Probabilistic Passive Attack on the Protocols HB and HB+
Jose CARRIJO Rafael TONICELLI Hideki IMAI Anderson C.A. NASCIMENTO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/02/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Cryptography and Information Security
authentication, protocol HB/HB+, cryptoanalysis,
Full Text: PDF(83KB)>>
We present a very simple probabilistic, passive attack against the protocols HB and HB+. Our attack presents some interesting features: it requires less captured transcripts of protocol executions when compared to previous results; It makes possible to trade the amount of required transcripts for computational complexity; the value of noise used in the protocols HB and HB+ need not be known.