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Cryptanalysis of the Hwang-Shi Proxy Signature Scheme.

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Title: Cryptanalysis of the Hwang-Shi Proxy Signature Scheme.
Authors: Hwang, Min-Shiang, Lee, Cheng-Ch, Hwang, Shin-Jia
Source: Fundamenta Informaticae. Nov2002, Vol. 53 Issue 2, p131. 4p.
Subjects: Data encryption, Cryptography, Hashing, Computer science
Abstract: 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. [ABSTRACT FROM AUTHOR]
Copyright of Fundamenta Informaticae is the property of Polskie Towarzystwo Matematyczne and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 10182075
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PubType: Academic Journal
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  Data: Cryptanalysis of the Hwang-Shi Proxy Signature Scheme.
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  Data: <searchLink fieldCode="AR" term="%22Hwang%2C+Min-Shiang%22">Hwang, Min-Shiang</searchLink><br /><searchLink fieldCode="AR" term="%22Lee%2C+Cheng-Ch%22">Lee, Cheng-Ch</searchLink><br /><searchLink fieldCode="AR" term="%22Hwang%2C+Shin-Jia%22">Hwang, Shin-Jia</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Data+encryption%22">Data encryption</searchLink><br /><searchLink fieldCode="DE" term="%22Cryptography%22">Cryptography</searchLink><br /><searchLink fieldCode="DE" term="%22Hashing%22">Hashing</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+science%22">Computer science</searchLink>
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  Data: 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. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Fundamenta Informaticae is the property of Polskie Towarzystwo Matematyczne and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3233/fun-2002-53202
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      – Code: eng
        Text: English
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        PageCount: 4
        StartPage: 131
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        Type: general
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        Type: general
      – SubjectFull: Hashing
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      – TitleFull: Cryptanalysis of the Hwang-Shi Proxy Signature Scheme.
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            NameFull: Hwang, Min-Shiang
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              Text: Nov2002
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