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Cheng Lin - One of the best experts on this subject based on the ideXlab platform.

  • Analysis of Multi-proxy Blind Signature
    Computer Engineering, 2010
    Co-Authors: Wang Guo-zhan, Kang Bao-yuan, Cheng Lin
    Abstract:

    【Abstract】A multi-proxy Blind Signature is an extension of proxy Blind Signature, which allows the designated proxy signer to generate a Signature on behalf of several original signers. The security of a proxy Blind multi-Signature scheme without a secure channel is analyzed with the method of construction. The results show that this proxy Blind Signature scheme is not secure. The scheme does not satisfy the properties of unforgeability and unlinkbility. It can not be applied to e-commerce, e-cash and e-voting system. 【Key words】proxy Signature; Blind Signature; multi-proxy

  • Analysis of Proxy Blind Signature Scheme
    Computer Engineering, 2010
    Co-Authors: Wang Guo-zhan, Kang Bao-yuan, Cheng Lin
    Abstract:

    A proxy Blind Signature scheme is a Signature which combines the properties of proxy Signature and Blind Signature. Gu et al. presents a proxy Blind Signature scheme and its application to Electronic Cash. This paper gives the security analysis of the proxy Blind Signature scheme with the method of construction. It shows that Gu et al.’ proxy Blind Signature scheme is not secure. The scheme does not satisfy the properties of unforgeability and unlinkbility. So the poxy Blind Signature can not be applied to Electronic Eash and Vote System. Otherwise, the system is not secure.

Wang Guo-zhan - One of the best experts on this subject based on the ideXlab platform.

  • Analysis of Multi-proxy Blind Signature
    Computer Engineering, 2010
    Co-Authors: Wang Guo-zhan, Kang Bao-yuan, Cheng Lin
    Abstract:

    【Abstract】A multi-proxy Blind Signature is an extension of proxy Blind Signature, which allows the designated proxy signer to generate a Signature on behalf of several original signers. The security of a proxy Blind multi-Signature scheme without a secure channel is analyzed with the method of construction. The results show that this proxy Blind Signature scheme is not secure. The scheme does not satisfy the properties of unforgeability and unlinkbility. It can not be applied to e-commerce, e-cash and e-voting system. 【Key words】proxy Signature; Blind Signature; multi-proxy

  • Analysis of Proxy Blind Signature Scheme
    Computer Engineering, 2010
    Co-Authors: Wang Guo-zhan, Kang Bao-yuan, Cheng Lin
    Abstract:

    A proxy Blind Signature scheme is a Signature which combines the properties of proxy Signature and Blind Signature. Gu et al. presents a proxy Blind Signature scheme and its application to Electronic Cash. This paper gives the security analysis of the proxy Blind Signature scheme with the method of construction. It shows that Gu et al.’ proxy Blind Signature scheme is not secure. The scheme does not satisfy the properties of unforgeability and unlinkbility. So the poxy Blind Signature can not be applied to Electronic Eash and Vote System. Otherwise, the system is not secure.

Kang Bao-yuan - One of the best experts on this subject based on the ideXlab platform.

  • Analysis of Proxy Blind Signature Scheme
    Computer Engineering, 2010
    Co-Authors: Wang Guo-zhan, Kang Bao-yuan, Cheng Lin
    Abstract:

    A proxy Blind Signature scheme is a Signature which combines the properties of proxy Signature and Blind Signature. Gu et al. presents a proxy Blind Signature scheme and its application to Electronic Cash. This paper gives the security analysis of the proxy Blind Signature scheme with the method of construction. It shows that Gu et al.’ proxy Blind Signature scheme is not secure. The scheme does not satisfy the properties of unforgeability and unlinkbility. So the poxy Blind Signature can not be applied to Electronic Eash and Vote System. Otherwise, the system is not secure.

  • Analysis of Multi-proxy Blind Signature
    Computer Engineering, 2010
    Co-Authors: Wang Guo-zhan, Kang Bao-yuan, Cheng Lin
    Abstract:

    【Abstract】A multi-proxy Blind Signature is an extension of proxy Blind Signature, which allows the designated proxy signer to generate a Signature on behalf of several original signers. The security of a proxy Blind multi-Signature scheme without a secure channel is analyzed with the method of construction. The results show that this proxy Blind Signature scheme is not secure. The scheme does not satisfy the properties of unforgeability and unlinkbility. It can not be applied to e-commerce, e-cash and e-voting system. 【Key words】proxy Signature; Blind Signature; multi-proxy

  • Improvement of a proxy Blind Signature scheme
    Journal of Hebei University of Engineering, 2009
    Co-Authors: Kang Bao-yuan
    Abstract:

    Recently,Li Fang-wei et al.presented forgeability and linkability attacks on WANG et al's proxy Blind Signature scheme and improved WANG et al's scheme,unfortunately LI et al's linkability attack is failed and the scheme still satisfies the unlinkability property;LI et al' s proxy Blind Signature scheme is analysised and impvroved,the new proxy Blind Signature scheme is of more security and higher efficiency.

Zhang Futai - One of the best experts on this subject based on the ideXlab platform.

  • ID-based Proxy Blind Signature Scheme
    Computer Engineering, 2006
    Co-Authors: Zhang Futai
    Abstract:

    Proxy Signature and Blind Signature are useful tools in cryptography.They both have wide applications in real life.In a proxy Signature,an original signer can delegate his signing power to a proxy signer who signs a message on behalf of the original signer.A Blind Signature has a salient feature that the signer can not make a linkage between the Blind Signature and the identity of the requester.Based on bilinear paring and an ID-based Signature scheme,an ID-based proxy Blind Signature scheme is presented,which satisfies the security properties of both proxy Signature schemes and Blind Signature schemes.A simple security analysis of the newly proposed scheme is also given.

Ye Chun-tao - One of the best experts on this subject based on the ideXlab platform.

  • Proxy Blind Signature based on identity
    Journal of Computer Applications, 2007
    Co-Authors: Ye Chun-tao
    Abstract:

    Making use of bilinear map and the ideas of identity-based Signature,a new efficient identity-based proxy Blind Signature was proposed.The scheme combined the advantages of proxy Signature and Blind Signature.It could prevent the original signer from generating proxy Blind Signature and the signer cannot make a linkage between the Blind Signature and the identity of the requester.Furthermore,its efficiency and security are also better than the existing ones.