Efficient Identity-Based Proxy Signature in the Standard Model

Gu, Ke; Jia, Weijia; Chun-lin, Jiang

doi:10.1093/comjnl/bxt132

Cited by 20 publications

(20 citation statements)

References 42 publications

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“…We only consider the most consuming operations, i.e., pairing computation in G 2 . From the Table 2, it can find that the security reduction of our identity-based proxy signature scheme is very tight with a constant probability (≈ 1 4 ) while the security of other both schemes degrades by a factor (1) in [11] and (2) in [12]. What's more, our scheme only needs three pairing operations which almost are half of other both schemes' costs.…”

Section: Efficiency Analysismentioning

confidence: 85%

“…In order to obtain a meaningful and fair result, our compare our identity-based proxy signature scheme with other identity-based proxy signature schemes which are secure in the standard model (including [11,12]) in terms of the complexity of security reduction and computational cost. q pw denotes the maximal number of 3C P proxy signing key query.…”

Section: Efficiency Analysismentioning

confidence: 99%

“…But their scheme was insecure because it could not resist the attack of the original signer. In 2013, Gu et al [12] presented a frame and a detailed security model for identity-based proxy signature scheme. However, all above schemes have the drawback, i.e., efficiency of the security reduction is very low.…”

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confidence: 99%

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An Efficient Identity-Based Proxy Signature Scheme in the Standard Model with Tight Reduction

et al. 2015

Advances in Intelligent Systems and Computing

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Identity-based proxy signature (IDPS) is a special signature. It has many applications, such as distribution networks, mobile communication, etc. Numerous IDPS schemes have been proposed. However, most existing IDPS schemes suffer the following shortcoming: loose security reduction. This problem is very important because loose security reduction weakens the security of IDPS and makes IDPS more vulnerable to attack. In this study, based on Kang et al.'s proof technical, we propose a new identity-based proxy signature scheme with a detailed security proof in the standard model. We also reduce the security of our scheme to the hardness assumption of computational Diffie-Hellman. In order to present the advance of our scheme, we make a theory comparison between our scheme with other identity-based proxy signature schemes in terms of security reduction and computational cost. The comparison shows that our scheme has tightest security reduction. What's more, our scheme needs less computational cost that is almost half of other schemes.Keywords Information security ⋅ Identity-based signature ⋅ Identity-based proxy signature ⋅ Tight reduction ⋅ CDH InstructionIn 1984, Shamir [1] first proposed the concept of identity-based cryptography that can simplify the key management process in certificate-based public key settings. IDPS scheme is a special identity-based signature (IBS) scheme [2][3][4], which can

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Section: Efficiency Analysismentioning

confidence: 85%

Section: Efficiency Analysismentioning

confidence: 99%

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An Efficient Identity-Based Proxy Signature Scheme in the Standard Model with Tight Reduction

et al. 2015

Advances in Intelligent Systems and Computing

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“…However, Sun et al (2013) pointed out that Cao and Cao's scheme was insecure because it could not resist the attack from the delegator and also had high computational cost. Gu et al (2015) proposed another direct construction of IDPS scheme with a more efficient and more complete security in the standard model than other IDPS schemes. However, their scheme still failed to resist the attack from the delegator.…”

Section: Introductionmentioning

confidence: 99%

A generic construction of identity-based proxy signature scheme in the standard model

Wang

et al. 2019

IJICS

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Recently, numerous identity-based proxy signature (IDPS) schemes are constructed by direct methods or generic methods. However, most of them are proved only to be secure in the random oracle model or are involved high computational cost. In this paper, we present a novel and generic construction method of IDPS scheme secure in the standard model from any identity-based signature (IDS) scheme. The security of IDPS scheme constructed by our method is based on the security of original IDS scheme. The computational cost of constructing an IDPS scheme is almost the same as that of constructing an original IDS scheme. Compared with other existing IDPS schemes constructed by direct methods or other generic methods, our IDPS scheme has better performance: signature length and computational cost of our IDPS scheme are almost half of other existing IDPS schemes. What is more, our method can be applied to construct other identity-based proxy cryptosystems.

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“…In an identity-based cryptosystem, the identity information can be used as the public key directly and the corresponding private key is generated by a trust third party called key generation center (KGC). Therefore, many identity-based cryptosystems have been proposed, such as [2], [3], [4], [5], [6], [7]. However, identity-based cryptosystems exist the key escrow problem.…”

Section: Introductionmentioning

confidence: 99%

Analysis and improvement of certificateless signature and proxy re-signature schemes

Lü

et al. 2015

2015 IEEE Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)

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Certificateless cryptography avoids the key escrow problem in identity-based crytosystems and certificate management in traditional public-key crytosystems, it has been researched by many scholars and many certificateless signature schemes have been proposed. However, most of them exist some security drawbacks and are insecure for some kinds of attacks.In this paper, we analyze two certificateless signature schemes and one proxy re-signature scheme proposed by some scholars recently. And we show that these schemes are insecure and also present the detailed attack steps. In order to overcome this problem, we also address some improved schemes which have the same or better performance than the original schemes.

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Efficient Identity-Based Proxy Signature in the Standard Model

Cited by 20 publications

References 42 publications

An Efficient Identity-Based Proxy Signature Scheme in the Standard Model with Tight Reduction

An Efficient Identity-Based Proxy Signature Scheme in the Standard Model with Tight Reduction

A generic construction of identity-based proxy signature scheme in the standard model

Analysis and improvement of certificateless signature and proxy re-signature schemes

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