A Key Escrow-Free Identity-Based Signature Scheme without using Secure Channel

Traditional public key cryptosystem (PKC) requires high maintenance cost for certificate management. Although, identity based cryptosystem (IBC) reduces the overhead of management, it suffers from the drawback of key escrow. Certificate-based cryptosystem solves certificate revocation problem and eliminate third party queries in the traditional PKI. In addition, it also solves the inherent key escrow problem in the IBC. In this paper, we proposed an efficient certificate-based signature and the result shows that the scheme is provable secure against two game attacks of certificate-based signature in the random oracle model. The security is closely related to the difficulty of solving the discrete logarithm problem.

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Key-escrow free multi-signature scheme using bilinear pairings

Groups – Complexity – Cryptology ◽

10.1515/gcc-2015-0002 ◽

2015 ◽

Vol 7 (1) ◽

Cited By ~ 1

Author(s):

Manik Lal Das

Keyword(s):

Bilinear Pairings ◽

Signature Scheme ◽

Basic Scheme ◽

Signature Schemes ◽

Key Escrow ◽

Private Key ◽

Secure Channel

AbstractWe present a multi-signature scheme based on bilinear pairings. The scheme is key escrow-free and does not require any secure channel for private key issuance to users. We use a binding-blinding technique to avoid the key escrow problem and to eliminate a secure channel requirement for the key issuance stage. The basic scheme is extended to sequential and parallel multi-signature schemes. We show that the basic scheme and multi-signature schemes are secure against adaptive chosen message attacks under standard assumptions.

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Identity-based threshold ring signature scheme with constant signature size

Journal of Computer Applications ◽

10.3724/sp.j.1087.2012.01385 ◽

2013 ◽

Vol 32 (5) ◽

pp. 1385-1387 ◽

Cited By ~ 1

Author(s):

Hua SUN ◽

Lei GUO ◽

Xue-feng ZHENG ◽

Ai-min WANG

Keyword(s):

Signature Scheme ◽

Ring Signature ◽

Identity Based

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Concurrent signature scheme constructed by identity-based ring signcryption

Journal of Computer Applications ◽

10.3724/sp.j.1087.2013.01386 ◽

2013 ◽

Vol 33 (5) ◽

pp. 1386-1390 ◽

Cited By ~ 1

Author(s):

Kui LIU ◽

Xiangqian LIANG ◽

Xiaolin LI

Keyword(s):

Signature Scheme ◽

Identity Based ◽

Concurrent Signature

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An Identity-Based Blind Signature Scheme Using Lattice with Provable Security

Mathematical Problems in Engineering ◽

10.1155/2020/7528571 ◽

2020 ◽

Vol 2020 ◽

pp. 1-12

Author(s):

Quanrun Li ◽

Chingfang Hsu ◽

Debiao He ◽

Kim-Kwang Raymond Choo ◽

Peng Gong

Keyword(s):

Quantum Computer ◽

Rapid Development ◽

Random Oracle Model ◽

Random Oracle ◽

Mean Value ◽

Blind Signature ◽

Signature Scheme ◽

Practical Applications ◽

Universal Quantum ◽

Identity Based

With the rapid development of quantum computing and quantum information technology, the universal quantum computer will emerge in the near decades with a very high probability and it could break most of the current public key cryptosystems totally. Due to the ability of withstanding the universal quantum computer’s attack, the lattice-based cryptosystems have received lots of attention from both industry and academia. In this paper, we propose an identity-based blind signature scheme using lattice. We also prove that the proposed scheme is provably secure in the random oracle model. The performance analysis shows that the proposed scheme has less mean value of sampling times and smaller signature size than previous schemes. Thus, the proposed scheme is more suitable for practical applications.

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