检索结果-南通市图书馆

Provably Secure Self-Certified Signature Schemes with message recovery

在线全文

学校读者我要写书评

暂无评论

China Communications 2012年第10期9卷 112-119页

作者： Zhang Shengyuan Tang Fei Lin Changlu Ke Pinhui Key Laboratory of Network Security and Cryptology Fujian Normal University Fuzhou 350108 P. R. China

To solve the key escrow problem of the identity-based cryptosystem, Girault introduced the notion of a self-certified public key, which not only eliminates the need to authenticate a public key but also solves the key escrow problerrL This paper proposes a Self-Certified Signature （SCS） scheme with message recovery and two variants without using bilinear pairings： one is the authenticated encryption scheme in which only the designated re- ceiver can verify the signature, and the other is the authenticated encryption scheme with message linkage that deals with large messages. These three SCS schemes are provably secure in the random oracle model and are more efficient than previous schemes .

关键词： digital signature self-certified public key message recovery random oracle model

Certificateless message recovery Signatures Providing Girault's Level-3 Security

在线全文

学校读者我要写书评

暂无评论

Journal of Shanghai Jiaotong university(Science) 2011年第5期16卷 577-585页

作者：左瑞麟 KIM Cheonshik 易训 Department of Computer Science National Chengchi University Department of Computer Engineering Sejong University School of Engineering and Science Victoria University

A digital signature with message recovery is a signature that the message itself (or partial of the message) is not required to be transmitted together with the signature. It has the advantage of small data size of communication comparing with the traditional digital signatures. In this paper, combining both advantages of the message recovery signatures and the certificateless cryptography, we propose the first certificatelss signature scheme with message recovery. The remarkable feature of our scheme is that it can achieve Girault's Level-3 security while the conventional certificateless signature scheme only achieves Level-2 security. The security of the scheme is rigorously proved in the random oracle model based on the hardness of the k bilinear Diffie-Hellman inverse (k-BDHI) problem.

关键词： bilinear pairing certificateless digital signature message recovery random oracle

Cryptanalysis and Improvement of Piveteau Signature Scheme with message recovery

在线全文

学校读者我要写书评

暂无评论

Tsinghua Science and Technology 2003年第2期8卷 198-200页

作者：李子臣成军祥戴一奇 Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China Department of Mathematics Jiaozuo Institute of Technology Jiaozuo 454159 China

Piveteau signature scheme allows message recovery but the methodology differs from that of the Nyberg-Rueppel schemes. This paper analyzes the security of the Piveteau scheme by designing some attacks. Two improved methods to Piveteau signature scheme and Nyberg-Rueppel schemes were developed to avoid these weaknesses. Analyses of the security of the improved schemes prove that the improved methods can effectively handle the attacks proposed in this paper.

关键词： digital signature message recovery cryptanalysis cryptography

A Signcryption Scheme with message Link recovery

在线全文

学校读者我要写书评

暂无评论

A Signcryption Scheme with Message Link Recovery

EBAA: An efficient broadcast authentication scheme for ADS-B communication based on IBS-MR

2012 International Symposium on Information Technologies in Medicine and Education(ITME2012)

作者： LIU Pei-yu School of Information Science and Engineering Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Shandong Normal University Jinan China XUE Wen-juan School of Information Science and Engineering Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Shandong Normal University Jinan China

For large amount of computation in elliptic curve cryptography,we combined with message Linkage recovery Based on Elliptic Curve and proposed a new signcryption scheme with message link recovery by signcryption equation as the breakthrough *** signcryption equation of the new scheme was s=k-r-kA mod n and the corresponding verification was X=（s+r）G+PA,which correctness has been *** results of analyzed the efficiency of operation and the security of the improved scheme show that,it meets the safety requirements of digital signature scheme,at the same time,it reduces an operation of number multiplication in the process of signature and lowers the number of points ***,the new scheme was applied to the electronic evidence protection,which has the function of message recovery.

关键词： signcryption scheme message linkage electronic evidence protection message recovery

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2014年第3期27卷 688-696页

作者： Yang Haomiao Huang Rongshun Wang Xiaofen Deng Jiang Chen Ruidong School of Computer Science and Engineering University of Electronic Science and Technology of China The Second Research Institute Civil Aviation Administration of China

Automatic dependent surveillance-broadcast （ADS-B） systems can broadcast satellitebased aircraft position, identification, etc., periodically, and are now on track to replace radar to become the backbone of next-generation air traffic management （ATM） systems. However, ADS-B systems suffer severe cyber-security problems due to the broadcast-type data link and the lack of designed-in security measures. Especially, since ADS-B messages are unauthenticated, it is easy to insert fake aircraft into a system via spoofing or insertion of false messages. Unfortu- nately, the authentication for ADS-B messages has not yet been well studied. In this paper, based on identity-based signature with message recovery （IBS-MR）, an efficient broadcast authentication scheme for ADS-B messages is proposed. The security analysis demonstrates that the scheme can achieve authenticity and integrity of ADS-B broadcast messages, as well as adaptive evolution of broadcasters＇ private keys. The performance evaluation shows that the scheme is computationally efficient for typical avionics devices with limited resources. Furthermore, the scheme achieves low communication overhead since broadcast messages can be recovered from signatures, and thus it is suitable for low-bandwidth ADS-B data link.

关键词： Air traffic management Broadcast authentication Identity-based signature message recovery Satellite communication

Cryptanalysis of Hwang et al.＇s Improved Encryption Scheme

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science and Information 2009年第2期7卷 159-163页

作者： Dezhi Gao Xiangqian Liang Information Science and Engineering College Shandong University of Science and Technology Qingdao 266510 China

Recently, Tseng et al. proposed authenticated encryption scheme with message recovery using self-certified public keys. Hwang et al. proposed an attack to show that the Tseng et al.＇s scheme was not secure. And Hwang et al. proposed an improved scheme and claimed to that the new scheme satisfy the security requirement. However, we will show that the improved signature proposed by Hwang et al. is still insecure.

关键词： cryptography authenticated encryption signature scheme message recovery self-certified key