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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2009  >  38(5): 712-715

QIN Zhi-guang, LIAO Yong-jian. Cryptanalysis of an ID-Based Designated Verifier Signature Schemes[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(5): 712-715. doi: 10.3969/j.issn.1001-0548.2009.05.033
Citation: QIN Zhi-guang, LIAO Yong-jian. Cryptanalysis of an ID-Based Designated Verifier Signature Schemes[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(5): 712-715. doi: 10.3969/j.issn.1001-0548.2009.05.033
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Cryptanalysis of an ID-Based Designated Verifier Signature Schemes

doi: 10.3969/j.issn.1001-0548.2009.05.033
  • 1.

    School of Computer Science and Engineering,University of Electronic Science and Technology of China Chengdu 610054

  • Received Date: 2009-05-21
  • Publish Date: 2009-10-15
  • Compared with ordinary digital signature, the designated verifier signature scheme makes it possible for a signer to convince a designated verifier that she has signed a message in such a way that the designated verifier cannot transfer the signature to a third party. In designated verifier signature scheme, no third party can even verify the validity of a designated verifier signature since it must use the designated verifier's secret key in verification. Recently, an ID-based strong designated verifier scheme, ID-based designated verifier proxy signature scheme, and partial cryptanalysis ware proposed. In this paper, we show that the designated verifier signature scheme is delegatable, and the designated verifier proxy signature is forgeable since construction of the proxy scheme is unreasonable.
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Cryptanalysis of an ID-Based Designated Verifier Signature Schemes

doi: 10.3969/j.issn.1001-0548.2009.05.033
  • 1. School of Computer Science and Engineering,University of Electronic Science and Technology of China Chengdu 610054
  • Received Date: 2009-05-21
  • Publish Date: 2009-10-15

Abstract: Compared with ordinary digital signature, the designated verifier signature scheme makes it possible for a signer to convince a designated verifier that she has signed a message in such a way that the designated verifier cannot transfer the signature to a third party. In designated verifier signature scheme, no third party can even verify the validity of a designated verifier signature since it must use the designated verifier's secret key in verification. Recently, an ID-based strong designated verifier scheme, ID-based designated verifier proxy signature scheme, and partial cryptanalysis ware proposed. In this paper, we show that the designated verifier signature scheme is delegatable, and the designated verifier proxy signature is forgeable since construction of the proxy scheme is unreasonable.

QIN Zhi-guang, LIAO Yong-jian. Cryptanalysis of an ID-Based Designated Verifier Signature Schemes[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(5): 712-715. doi: 10.3969/j.issn.1001-0548.2009.05.033
Citation: QIN Zhi-guang, LIAO Yong-jian. Cryptanalysis of an ID-Based Designated Verifier Signature Schemes[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(5): 712-715. doi: 10.3969/j.issn.1001-0548.2009.05.033
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