Welcome to the resource topic for 2005/344
Title:
Countering chosen-ciphertext attacks against noncommutative polly cracker-type cryptosystems.
Authors: Tapan Rai
Abstract:In [2], Stanislav Bulygin presents a chosen-ciphertext attack against
certain instances of noncommutative polly cracker-type cryptosystems which were proposed in [7] and [9]. In this article, we present generalized versions of this attack, which can be used against virtually all polly cracker-type cryptosystems. We then present a simple but effective techique to counter these attacks. We also present a technique to counter an adaptive chosen-ciphertext attack which was first described by Neil Koblitz in [8].
ePrint: https://eprint.iacr.org/2005/344
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