Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings

Public Key Cryptosystem (PKC) completely relies under the assumption that user’s private key is absolutely secure. Exposure of private key may lead to disastrous situations in the communication network. To diminish the damage of private key exposure in PKC, key-insulation mechanism was introduced. I...

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Autores principales:	P. Vasudeva Reddy, A. Ramesh Babu, N.B. Gayathri
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Identity-based signature scheme Key insulation mechanism ROM security model ECDLP Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/bb515a61d7634e69a025a868043d1283
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spelling	oai:doaj.org-article:bb515a61d7634e69a025a868043d12832021-11-22T04:19:36ZEfficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings1319-157810.1016/j.jksuci.2018.08.011https://doaj.org/article/bb515a61d7634e69a025a868043d12832021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1319157818304051https://doaj.org/toc/1319-1578Public Key Cryptosystem (PKC) completely relies under the assumption that user’s private key is absolutely secure. Exposure of private key may lead to disastrous situations in the communication network. To diminish the damage of private key exposure in PKC, key-insulation mechanism was introduced. In key-insulated cryptosystems, a user can update his private key with the help of a physically secure device from time to time. Identity-based cryptosystem alleviates the heavy certificate management problems in traditional PKC. Recently, many Identity-based key insulated signature schemes have been proposed in literature; however, most of the Identity-based schemes are designed based on the expensive bilinear pairing operation over elliptic curves. Due to the heavy computational cost of a pairing, the pairing based schemes are less efficient in practice. In order to improve the computational and communicational efficiency and to resist the problem of private key exposure in Identity-based signature schemes, we present a pairing-free key insulated signature scheme in identity based setting. We show that this scheme is unforgeable and achieves strong key insulation property with secure key updates, under the hardness of the Elliptic Curve Discrete Logarithm Problem (ECDLP). The performance analysis shows that our scheme is more efficient than the existing schemes.P. Vasudeva ReddyA. Ramesh BabuN.B. GayathriElsevierarticleIdentity-based signature schemeKey insulation mechanismROM security modelECDLPElectronic computers. Computer scienceQA75.5-76.95ENJournal of King Saud University: Computer and Information Sciences, Vol 33, Iss 10, Pp 1211-1218 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Identity-based signature scheme Key insulation mechanism ROM security model ECDLP Electronic computers. Computer science QA75.5-76.95
spellingShingle	Identity-based signature scheme Key insulation mechanism ROM security model ECDLP Electronic computers. Computer science QA75.5-76.95 P. Vasudeva Reddy A. Ramesh Babu N.B. Gayathri Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings
description	Public Key Cryptosystem (PKC) completely relies under the assumption that user’s private key is absolutely secure. Exposure of private key may lead to disastrous situations in the communication network. To diminish the damage of private key exposure in PKC, key-insulation mechanism was introduced. In key-insulated cryptosystems, a user can update his private key with the help of a physically secure device from time to time. Identity-based cryptosystem alleviates the heavy certificate management problems in traditional PKC. Recently, many Identity-based key insulated signature schemes have been proposed in literature; however, most of the Identity-based schemes are designed based on the expensive bilinear pairing operation over elliptic curves. Due to the heavy computational cost of a pairing, the pairing based schemes are less efficient in practice. In order to improve the computational and communicational efficiency and to resist the problem of private key exposure in Identity-based signature schemes, we present a pairing-free key insulated signature scheme in identity based setting. We show that this scheme is unforgeable and achieves strong key insulation property with secure key updates, under the hardness of the Elliptic Curve Discrete Logarithm Problem (ECDLP). The performance analysis shows that our scheme is more efficient than the existing schemes.
format	article
author	P. Vasudeva Reddy A. Ramesh Babu N.B. Gayathri
author_facet	P. Vasudeva Reddy A. Ramesh Babu N.B. Gayathri
author_sort	P. Vasudeva Reddy
title	Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings
title_short	Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings
title_full	Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings
title_fullStr	Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings
title_full_unstemmed	Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings
title_sort	efficient and secure identity-based strong key-insulated signature scheme without pairings
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/bb515a61d7634e69a025a868043d1283
work_keys_str_mv	AT pvasudevareddy efficientandsecureidentitybasedstrongkeyinsulatedsignatureschemewithoutpairings AT arameshbabu efficientandsecureidentitybasedstrongkeyinsulatedsignatureschemewithoutpairings AT nbgayathri efficientandsecureidentitybasedstrongkeyinsulatedsignatureschemewithoutpairings
_version_	1718418244885282816

Efficient and Secure Identity-based Strong Key-Insulated Signature Scheme without Pairings

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