Attack on a concast signature scheme
نویسنده
چکیده
Al-Ibrahim, Ghodosi and Pieprzyk proposed several methods of batch signature verifiation suitable for concast communication. These schemes are all based on ElGamal-type signature schemes. We prove that their preferred scheme, which does not require interaction among the various signers, is insecure.
منابع مشابه
Authentication of Concast Communication
In this paper we tackle the problem of nding an eecient signature veriication scheme when the number of signatures is signiic-antly large and the veriier is relatively weak. In particular, we tackle the problem of message authentication in many-to-one communication networks known as concast communication. The paper presents three signature screening algorithms for a variant of ElGamal-type digi...
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ورودعنوان ژورنال:
- Inf. Process. Lett.
دوره 91 شماره
صفحات -
تاریخ انتشار 2004