论文信息 - Cryptanalysis of the Hwang-Shi Proxy Signature Scheme

Cryptanalysis of the Hwang-Shi Proxy Signature Scheme

Recently, Hwang and Shi proposed an efficient proxy signature scheme without using one-way hash functions. In their scheme, an original signer needn't send a proxy certificate to a proxy signer through secure channels. However, there are two public key substitution methods that can be used to attack their scheme. In this article, we show that their scheme is vulnerable to the public key substitution attacks.

[1] William Stallings,et al. Cryptography and network security , 1998 .

[2] Guoqiang Bai,et al. Proxy multi-signature scheme: a new type of proxy signature scheme , 2000 .

[3] Min-Shiang Hwang,et al. A Secure Nonrepudiable Threshold Proxy Signature Scheme with Known Signers , 2000, Informatica.

[4] Min-Shiang Hwang,et al. A Dynamic Key Generation Scheme for Access Control in a Hierarchy , 1999, Nord. J. Comput..

[5] M. Mambo,et al. Proxy Signatures: Delegation of the Power to Sign Messages (Special Section on Information Theory and Its Applications) , 1996 .

[6] Dongho Won,et al. Proxy signatures, Revisited , 1997, ICICS.

[7] William Stallings,et al. Cryptography and Network Security: Principles and Practice , 1998 .

[8] Min-Shiang Hwang. An asymmetric cryptographuic key assignment scheme for access control in totally-ordered hierarchies , 2000, Int. J. Comput. Math..

[9] Tzonelih Hwang,et al. On Zhang's Nonrepudiable Proxy Signature Schemes , 1998, ACISP.

[10] Wei-Pang Yang,et al. A new dynamic cryptographic key generation scheme for a hierarchy , 1994, Proceedings of TENCON'94 - 1994 IEEE Region 10's 9th Annual International Conference on: 'Frontiers of Computer Technology'.