Cryptanalysis and Improvement of Yanlin and Xiaoping&apos;s Signature Scheme based on ECDLP and Factoring | Zendy

Hemlal Sahu | Zendy; Birendra Kumar Sharma | Zendy

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Cryptanalysis and Improvement of Yanlin and Xiaoping's Signature Scheme based on ECDLP and Factoring

Author(s) -

Hemlal Sahu,

Birendra Kumar Sharma

Publication year - 2014

Publication title -

international journal of computer applications

Language(s) - English

Resource type - Journals

ISSN - 0975-8887

DOI - 10.5120/14825-3065

Subject(s) - factoring , computer science , signature (topology) , cryptanalysis , scheme (mathematics) , elgamal signature scheme , theoretical computer science , digital signature , algorithm , computer security , blind signature , cryptography , mathematics , hash function , mathematical analysis , geometry , finance , economics

Qin Yanlin and Wu Xiaoping proposed a digital signature scheme based on elliptic curve discrete logarithm problem and factoring a composite integer. They claimed that the security of their scheme depends on solving ECDLP and factoring both. In this paper, it is shown that if anyone can solve ECDLP then he can generate a valid signature without knowledge of private keys. An improved scheme is also proposed in this paper. The proposed scheme requires minimal operations in encryption and decryption algorithms which makes it more efficient. General Terms 2000 AMS Subject Classification No. 94A60

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