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Pairing-Free ID-Based key-insulated Signature Scheme

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Journal of Electronic Science and Technology 2015年第1期13卷 33-38页

作者： Guo-Bin Zhu Hu Xiong Zhi-Guang Qin School of Computer Science and Engineering University of Electronic Science and Technology of China

Without the assumption that the private keys are kept secure perfectly, cryptographic primitives cannot be deployed in the insecure environments where the key leakage is inevitable. In order to reduce the damage caused by the key exposure in the identity-based（ID-based） signature scenarios efficiently, we propose an ID-based key-insulated signature scheme in this paper, which eliminates the expensive bilinear pairing operations. Compared with the previous work, our scheme minimizes the computation cost without any extra cost. Under the discrete logarithm（DL） assumption, a security proof of our scheme in the random oracle model has also been given.

关键词： Identity-based cryptography key-insulated random oracle mode signature

Certificateless Strong key-insulated Signature Without Random Oracles

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Journal of Shanghai Jiaotong university(Science) 2011年第5期16卷 571-576页

作者：万中美孟祥芹洪璇 College of Science Hohai University Department of Computer Science Shanghai Normal University

It is important to ensure the private key secure in cryptosystem. To reduce the underlying danger caused by the private key leakage, Dodis et al. (2003) introduced the notion of key-insulated security. To handle the private key leakage problems in certificateless signature schemes, we propose a new certificateless strong key-insulated signature scheme. Our scheme has two desirable properties. First, its security can be proved without utilizing the random oracle model. Second, it solves the key escrow problems in identity-based key-insulated signatures (IBKISs).

关键词： key-insulated key leakage certificateless bilinear pairings

Identity-Based key-insulated Proxy Signature Without Random Oracles

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Journal of Shanghai Jiaotong university(Science) 2011年第5期16卷 557-566页

作者：陈剑洪龙宇陈克非王永涛 Department of Computer Science and Engineering Shanghai Jiaotong University School of Computer Engineering Huaiyin Institute of Technology Shanghai key Laboratory of Scalable Computing and System Shanghai Jiaotong University

In an identity based proxy signature (IBPS) scheme, a designated proxy signer can generate the signature on behalf of an original signer. Traditional IBPS schemes normally rely on the assumption that private keys are kept perfectly secure. However, due to viruses, worms or other break-ins allowed by operating-system holes, key exposure seems inevitable. To minimize the damage caused by key exposure in IBPS, we propose an identity-based key-insulated proxy signature (IBKIPS) scheme in the standard model, i.e. without random oracles.

关键词： key-insulated proxy signature identity-based standard model

ID-based key-insulated Authenticated key Agreement Protocol

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Journal of Shanghai Jiaotong university(Science) 2007年第2期12卷 247-249页

作者：周渊程晓明柴震川 National Computer Network Emergency Response Technical Team/Coordination Center of China Dept.of Computer Science and Eng. Shanghai Jiaotong Univ.

The basic idea behind an ID-based cryptosystem is that end user's public key can be determined by his identity *** with the traditional certificate-based cryptography,identity-based cryptography can eliminate much of the overhead associated with the deployment and management of ***,exposure of private keys can be the most devastating attack on a public key based cryptosystem since such that all security guarantees are *** this paper,an ID-based authenticated key agreement protocol was *** solving the problem of key exposure of the basic scheme,the technique of key insulation was applied and a key insulated version is developed.

关键词： ID-based key-insulated key agreement

Strong key-insulated Signature in the Standard Model

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Journal of Shanghai Jiaotong university(Science) 2010年第6期15卷 657-661页

作者：万中美来学嘉翁健刘胜利龙宇洪璇 Department of Computer Science and Engineering Shanghai Jiaotong University College of Science Hohai University Department of Computer Science Jinan University

The only known construction of key-insulated signature(KIS) that can be proven secure in the standard model is based on the approach of using double signing. That is,the scheme requires two signatures:a signature with a master key and a signature with the signer's secret key. This folklore construction method leads to an ineffcient scheme. Therefore it is desirable to devise an effcient KIS scheme. We present the first scheme with such a construction. Our construction derives from some variations of the Waters' signature scheme. It is computationally effcient and the signatures are short. The scheme is provably secure based on the diffculty of computational Diffe-Hellman(CDH) problem in the standard model.

关键词： key-insulated key exposure standard model bilinear pairing

An Efficient and Provably Secure SM2 key-insulated Signature Scheme for Industrial Internet of Things

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Computer Modeling in Engineering & Sciences 2024年第1期138卷 903-915页

作者： Senshan Ouyang Xiang Liu Lei Liu Shangchao Wang Baichuan Shao Yang Zhao School of Mechanical Engineering Northwestern Polytechnical UniversityXi’anChina Department of Process and Information Technology Chengdu Aircraft Industrial(Group)Co.Ltd.ChengduChina School of Information and Software Engineering The Network and Data Security Key Laboratory of Sichuan ProvinceUniversity of Electronic Science and Technology of ChinaChengduChina

With the continuous expansion of the Industrial Internet of Things(IIoT),more andmore organisations are placing large amounts of data in the cloud to reduce ***,the channel between cloud servers and smart equipment is not trustworthy,so the issue of data authenticity needs to be *** SM2 digital signature algorithm can provide an authentication mechanism for data to solve such ***,it still suffers from the problem of key *** order to address this concern,this study first introduces a key-insulated scheme,SM2-KI-SIGN,based on the SM2 *** scheme boasts strong key insulation and secure *** scheme uses the elliptic curve algorithm,which is not only more efficient but also more suitable for IIoT-cloud ***,the security proof of SM2-KI-SIGN is given under the Elliptic Curve Discrete Logarithm(ECDL)assumption in the random oracle.

关键词： key-insulated SM2 algorithm digital signature Industrial Internet of Things(IIoT) provable security

IDENTITY-BASED key-insulated PROXY SIGNATURE

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Journal of Electronics(China) 2009年第6期26卷 853-858页

作者： Wan Zhongmei Lai Xuejia Weng Jian Liu Shengli Hong Xuan Department of Computer Science and Engineering Shanghai Jiaotong University Shanghai 200240 China Department of Mathematics College of Science Hohai University Nanjing 210098 China Department of Computer Science Jinan University Guangzhou 510632 China

In proxy signature schemes,the proxy signer B is permitted to produce a signature on behalf of the original signer A. However,exposure of proxy signing keys can be the most devastating attack on a proxy signature scheme since any adversary can sign messages on behalf of the proxy signer. In this paper,we applied Dodis,et al.’s key-insulation mechanism and proposed an Identity-Based (ID-based) key-insulated Proxy Signature (IBKIPS) scheme with secure key-updates. The proposed scheme is strong key-insulated and perfectly key-insulated. Our scheme also supports unbounded period numbers and random-access key-updates.

关键词： key-insulated Proxy signature Identity-based signature key-exposure Bilinear pairings