Attacking an OT-Based Blind Signature Scheme
Cryptography and Security
2009-11-10 v4
Abstract
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.
Cite
@article{arxiv.0906.2947,
title = {Attacking an OT-Based Blind Signature Scheme},
author = {Stylianos Basagiannis and Panagiotis Katsaros and Andrew Pombortsis},
journal= {arXiv preprint arXiv:0906.2947},
year = {2009}
}
Comments
3 pages, 2 figures, sumbitted for evaluation, under the title "Security Analysis of an OT-based blind signature scheme"