Signcryption Scheme in Multi-user Setting without Random Oracles

Tan, Chik How

doi:10.1007/978-3-540-89598-5_5

Cited by 13 publications

(5 citation statements)

References 23 publications

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“…Because it is unable to generate the ephemeral key for PKE instance from the randomness of signature, and such invertibility of the MAP operation is only useful in the security proof nor in practical usage. Some other recent PKI‐based signcryption schemes have been also proposed from different motivations, but their signcryption algorithms are less efficient than ours.…”

Section: Introductionmentioning

confidence: 92%

A new efficient signcryption scheme in the standard model

Yang

2014

Security Comm Networks

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We introduce an efficient signcryption scheme for hybrid authenticated encryption that is provably secure in the standard model under a strong multiuser insider setting. Our new signcryption scheme is built on the basis of a variant of Boneh–Boyen short signature, which works under bilinear groups. The new construction idea is to reuse the signature value to derive the encryption key. This could dramatically save not only the computational cost but also the communication bandwidth. The session key security of the proposed scheme is reduced to a hard problem that is a variant of bilinear decisional Diffie–Hellman problem. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 92%

A new efficient signcryption scheme in the standard model

Yang

2014

Security Comm Networks

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“…In this subsection, we compare the major computational cost, ciphertext length, and key size of our scheme with those of Tan's scheme .…”

Section: Analysis Of the Schemementioning

confidence: 99%

“…All of these schemes are hybrid construction. In 2008, Tan proposed a signcryption scheme based on the Boneh and Boyen's identity‐based encryption scheme and the Boneh and Boyen's short signature scheme . This scheme is not hybrid construction.…”

Section: Introductionmentioning

confidence: 99%

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Efficient signcryption in the standard model

Zhang

Takagi

2011

Concurrency and Computation

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SUMMARY Signcryption is a cryptographic primitive that fulfills both the functions of digital signature and public key encryption simultaneously, at a cost significantly lower than that required by the traditional signature‐then‐encryption approach. The performance advantage of signcryption over the signature‐then‐encryption method makes signcryption useful in many applications, such as electronic commerce, mobile communications, and smart cards. In this paper, we propose an efficient signcryption scheme in the standard model. We prove that our scheme satisfies the confidentiality and strong unforgeability. Compared with the Tan's scheme, our scheme has | G | + | p | (320) bits shorter ciphertext, 2 | p | − | G | (160) bits shorter private key, and | GT | + | G | (1184) bits shorter public key. In addition, in the Tan's scheme, a user must hold two public key/private key pairs at one time if it were both sender and receiver. Our scheme only needs a public key/private key pair, which is more practical for application. Copyright © 2011 John Wiley & Sons, Ltd.

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“…In Crypto'97, Zheng [1] introduced the notion of signcryption, which can be viewed as the functional combination of encryption and signature, and its efficiency is higher than the separate signing and encrypting. Since then, a number of signcryption schemes have been proposed, e.g., [2][3][4][5][6][7][8][9][10], including some variants for different settings, e.g., identity-based signcryption [11][12][13][14], certificateless signcryption [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Cryptanalysis of a signcryption scheme with fast online signing and short signcryptext

Zhou

Weng

Guan

et al. 2014

Sci. China Inf. Sci.

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Constructing parallel long-message signcryption scheme from trapdoor permutation Science in China Series F-Information Sciences 50, 82 (2007); Cryptanalysis on AW digital signature scheme based on error-correcting codes Science in China Series F-Information Sciences 45, 397 (2002); Online hybrid test using a finite element program and an explicit integration scheme SCIENCE CHINA Technological Sciences 58, 163 (2015); PPLS: a privacy-preserving location-sharing scheme in mobile online social networks SCIENCE CHINA Information Sciences 63, 132105 (2020);. RESEARCH PAPER. SCIENCE CHINA Information Sciences

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Signcryption Scheme in Multi-user Setting without Random Oracles

Cited by 13 publications

References 23 publications

A new efficient signcryption scheme in the standard model

A new efficient signcryption scheme in the standard model

Efficient signcryption in the standard model

Cryptanalysis of a signcryption scheme with fast online signing and short signcryptext

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