http://scholars.ntou.edu.tw/handle/123456789/16612
Title: | On the Security of a Provably Secure Certificateless Strong Designated Verifier Signature Scheme Based on Bilinear Pairings | Authors: | Han-Yu Lin Pei-Yih Ting Leo-Fan Yang |
Keywords: | Cryptanalysis;certificateless;strong designated verifier;digital signature;signer ambiguity | Issue Date: | Oct-2017 | Publisher: | Association for Computing Machinery | Start page/Pages: | 61–65 | Source: | ICTCE '17: Proceedings of the 2017 International Conference on Telecommunications and Communication Engineering | Conference: | ICTCE 2017: 2017 International Conference on Telecommunications and Communication Engineering | Abstract: | A strong designated verifier signature (SDVS) is a variation of traditional digital signatures, since it allows a signer to designate an intended receiver as the verifier rather than anyone. To do this, a signer must incorporate the verifier's public key with the signing procedure such that only the intended receiver could verify this signature with his/her private key. Such a signature further enables a designated verifier to simulate a computationally indistinguishable transcript intended for himself. Consequently, no one can identify the real signer's identity from a candidate signer and a designated verifier, which is referred to as the property of signer ambiguity. A strong notion of signer ambiguity states that no polynomial-time adversary can distinguish the real signer of a given SDVS that is not received by the designated verifier, even if the adversary has obtained the signer's private key. In 2013, Islam and Biswas proposed a provably secure certificateless strong designated verifier signature (CL-SDVS) scheme based on bilinear pairings. In this paper, we will demonstrate that their scheme fails to satisfy strong signer ambiguity and must assume a trusted private key generator (PKG). In other words, their CL-SDVS scheme is vulnerable to both key-compromise and malicious PKG attacks. Additionally, we present an improved variant to eliminate these weaknesses. |
Description: | 舉辦地點:Osaka Japan |
URI: | http://scholars.ntou.edu.tw/handle/123456789/16612 | ISBN: | 978-1-4503-5315-1 | DOI: | https://doi.org/10.1145/3145777.3145784 |
Appears in Collections: | 資訊工程學系 |
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