Autor:	Basagiannis, Stylianos, Katsaros, Panagiotis, Pombortsis, Andrew
Rok vydání:	2009
Předmět:	Computer Science - Cryptography and Security
Druh dokumentu:	Working Paper
Popis:	In this paper, we describe an attack against one of the Oblivious-Transfer-based blind signatures scheme, proposed in [1]. An attacker with a primitive capability of producing specific-range random numbers, while exhibiting a partial MITM behavior, is able to corrupt the communication between the protocol participants. The attack is quite efficient as it leads to a protocol communication corruption and has a sound-minimal computational cost. We propose a solution to fix the security flaw. Comment: 3 pages, 2 figures, sumbitted for evaluation, under the title "Security Analysis of an OT-based blind signature scheme"
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0906.2947 Zobrazit plný text záznamu View this record from Arxiv