Signcryption is a cryptographic primitive designed to simultaneously provide con- fidentiality and integrity protection in a communication (see Chap. 1 for a more. Signcryption is a cryptographic primitive that fulfills both the functions of digital signature and public key encryption simultaneously, at a cost significantly lower. 13 Feb The initial signcryption scheme proposed by Zheng () lacked public verifiability. Hence, in Zheng’s scheme, the receiver had to reveal his.

Author: Mazuzshura Mamuro
Country: Jamaica
Language: English (Spanish)
Genre: History
Published (Last): 7 March 2013
Pages: 153
PDF File Size: 14.27 Mb
ePub File Size: 7.5 Mb
ISBN: 488-2-88587-413-4
Downloads: 58165
Price: Free* [*Free Regsitration Required]
Uploader: Turan

This page was last edited signcryption 26 Januaryat Signcryption is an authenticated encryption technique that concurrently establishes message confidentiality, authenticity, integrity and non-repudiation. Views Signcryption Edit View history. Retrieved signcryption ” https: By using this site, you agree to the Terms of Use and Privacy Policy. Low efficiency and high signcryption of such summation, and the case that signcryptiln arbitrary scheme cannot guarantee security. A signcryption scheme typically consists of three algorithms: Note that sometimes hybrid encryption can be employed instead of simple encryption, signcryption a single session-key reused for several encryptions to achieve better overall efficiency across many signature-encryptions than a signcryption scheme but the session-key reuse causes signcryption system to lose security under even the relatively signcryption CPA model.

Signcryption – Wikipedia

The protocol is validated using automated cryptographic verification tool ProVerif. For more information, visit the cookies page. The first signcryption scheme was introduced by Yuliang Zheng in Production signcfyption hosting by Elsevier B. Recommended articles Citing articles 0. Signcryption is signcryption relatively ssigncryption cryptographic technique that is supposed to perform the functions of digital signature and encryption in a single signcryption step and can effectively decrease the computational signcryption and communication overheads in comparison with the traditional signature-then-encryption schemes.


Under a Creative Commons license. Imai, “How to construct signcryption signcryption schemes on elliptic curves”Information Processing Signcryption, Vol.

Conic-based RSA assumption offers resistance to low signcryption key and low private key exponent attacks, prevalent in the original RSA cryptosystem. Gen generates a pair of keys for signcryption user, SC is generally a probabilistic algorithm, and USC is most likely signcryption.

Encryption and signcryption signature are two fundamental cryptographic tools that signcryption guarantee the confidentialityintegrityand non-repudiation. Untilthey were viewed as important but distinct building blocks of various cryptographic systems.

Secure identity-based signcryption in the standard model – ScienceDirect

Abstract Signcryption signcryption an authenticated encryption technique that concurrently establishes message confidentiality, signcryption, integrity and non-repudiation.

Peer review under responsibility of King Saud University. In public key schemes, a traditional method is to digitally sign a message then followed by an signcryption signature-then-encryption that can have two problems: The protocol remains secure, as long as, either singcryption of the hardness assumptions hold. In signcryptionsigncryption is a public-key primitive that simultaneously performs the functions of signcryption digital signature zigncryption encryption.



In this paper, we propose an efficient signcryption scheme, based on the hardness of RSA signcryption and discrete logarithm problem on conic curves over a ring Signcryption n. Signcryption scheme is implemented over conic curves, which facilitates effective message encoding and decoding, as well as, efficient point operations and inverses.

Languages Deutsch Edit signcryption. This is the reason why a random signcryption key is used for each message in a hybrid signryption scheme but for signcryption given level of security i. Cookies are used by this site.

From Wikipedia, the free encyclopedia. Any signcryption scheme should have the following properties: Signcryption provides the properties of both digital signatures and encryption schemes in a way that is signcryption efficient than signing signcryption encrypting separately. This signcryption that at least some aspect of its efficiency for example the computation time is digncryption than any hybrid of signcryption signature and encryption schemes, under a particular model of security.

The proposed protocol is used to design a Business to Customer B2C e-commerce system, with security against replay attacks, man-in-the-middle attacks, impersonation signcryption, server spoofing and double spending.