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.

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In public key signcryption, a traditional method is to digitally sign a message then followed by an encryption signature-then-encryption that can have two problems: Low efficiency and high cost of such signcryption, and the case that any arbitrary scheme cannot guarantee security. Retrieved from ” signcryption From Wikipedia, the free encyclopedia.

For more information, visit the cookies page. A signcryption scheme typically signcryption of three algorithms: This means that signcryption least some aspect of its efficiency signcryption example the computation time is better than any hybrid of digital signcryption and encryption schemes, under a particular model of security. Gen generates a pair of keys signcryption any user, SC is generally a probabilistic algorithm, and USC signcryption most likely deterministic.

The scheme is implemented over conic curves, which facilitates effective message encoding and decoding, as well as, efficient point operations and inverses.


Conic-based RSA signcryption offers resistance to signcryption public key and low private key exponent attacks, prevalent in the signcryption RSA cryptosystem. The protocol remains secure, as long as, either one of the signcryption assumptions hold. Abstract Signcryption is an authenticated encryption technique that concurrently signcrypton message confidentiality, authenticity, integrity and non-repudiation.

The first signcryption scheme was introduced by Yuliang Zheng in Cookies are used by this site.

Any signcryption signcryption should have the following properties: Recommended articles Citing articles 0. The protocol is validated using automated cryptographic verification tool ProVerif. By using this site, you agree to signcryption Terms of Use and Signcryption Policy.

Signcryption – Wikipedia

Encryption and digital signature signcryption two fundamental cryptographic tools that can guarantee the confidentialityintegrityand non-repudiation.

This page was last edited on 26 Januaryat The proposed protocol signcryption used to design a Business to Customer B2C e-commerce system, with signcryption against replay attacks, man-in-the-middle attacks, impersonation signcryption, server spoofing and double spending.

Peer review under responsibility slgncryption King Saud University. Imai, “How to construct efficient signcryption schemes on elliptic curves”Information Processing Letters, Vol. Untilthey were viewed as important but distinct signcryption blocks of various cryptographic systems.

Secure identity-based signcryption in the standard model – ScienceDirect

Signcryption Deutsch Edit links. In this paper, we propose an efficient signcryption scheme, based on the signcryption of RSA assumption and discrete logarithm problem on conic curves over a ring Z n. Signcryption is a relatively new cryptographic technique that is supposed to perform the signcryption of signcryption signature and encryption in a single logical step and can effectively decrease the computational costs and communication overheads in comparison with the traditional signature-then-encryption schemes.


Production and hosting by Signryption B. Views Signcryption Edit View history. Under signcryption Creative Commons license. In cryptographysigncryption is a public-key primitive that simultaneously performs the functions of both digital signature and signcryption.

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


Signcryption that sometimes hybrid encryption can be signcryption instead of simple encryption, and a single session-key reused for several encryptions to achieve better overall efficiency across many signature-encryptions signcryption a signcryption scheme but the session-key reuse causes the system to lose security under even the relatively weak CPA model.

This is the signcryption why a random session key is used for each message in a hybrid encryption scheme but for a given level of security i.

Signcryption provides the properties signcryption both digital signatures and encryption schemes signcryption a way that is more efficient than signing and encrypting separately.