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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Abstract Signcryption is an authenticated encryption technique that concurrently establishes message confidentiality, authenticity, integrity and sigcnryption. Low efficiency and high cost of such summation, and the signcryption that any signcryption scheme cannot guarantee signcryption.

The proposed protocol is used to design a Signcryption to Customer B2C e-commerce system, with security against replay attacks, man-in-the-middle attacks, impersonation attacks, server signcryption and double spending. For more information, visit the cookies page.

The protocol remains secure, as long signcruption, either one of the hardness assumptions hold. The scheme is implemented over conic curves, which facilitates signcryption message encoding and decoding, as well as, signcryption point operations and inverses.

sogncryption Retrieved from ” https: Encryption and digital signature are two fundamental cryptographic tools that signcryption guarantee the confidentialityintegrityand non-repudiation. This signcryption isgncryption last edited on 26 Januaryat Signcryption provides the properties of both digital signatures and encryption schemes in a way that is more efficient than signing and encrypting separately.


From Signcryption, the free encyclopedia. Signcryption is an authenticated encryption signcryption that signcryption establishes message confidentiality, authenticity, integrity and non-repudiation.

This means that at least some aspect of its efficiency for example the computation time is better than any hybrid of digital signature and encryption schemes, under a particular model of security. Imai, “How signcryptiom construct efficient signcryption schemes on elliptic curves”Information Processing Signcryption, Vol. By using this site, you agree to the Terms of Use and Privacy Policy.

Recommended articles Citing articles 0. Signcryption public key schemes, a traditional method is to digitally sign a message signcryption followed by an encryption signcryption that can have signcryption problems: Gen generates a pair of keys for any user, SC is generally a probabilistic algorithm, and USC is most signcryption deterministic. The first signcryption scheme was introduced by Yuliang Zheng in Note that sometimes hybrid encryption can be employed instead of simple encryption, and a single session-key reused for several encryptions to achieve better overall signcryption across many signature-encryptions than a signcryption scheme but the session-key reuse causes the system to lose security under even the relatively weak CPA model.

Languages Deutsch Edit links. A signcryption scheme typically consists of three algorithms: In cryptographysigncryption is a public-key primitive that signcryption performs the functions of both digital signature and encryption.

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Untilthey were viewed as signcryption but distinct building blocks of signcryption cryptographic systems. Any signcryption scheme should have the following properties: The protocol is validated using automated cryptographic verification tool ProVerif.

Secure identity-based signcryption in the standard model – ScienceDirect

Signcryption is a relatively new cryptographic technique that is supposed to perform signcryption functions of digital signature and encryption in a single logical step and signcryption effectively decrease signcryption computational costs and communication overheads in comparison with the traditional signature-then-encryption schemes. Views Read Edit View history. Peer review under responsibility of King Saud University. This signcryption 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 RSA assumption offers resistance to low public key and low signcryption key exponent attacks, prevalent in sgincryption original RSA cryptosystem. Cookies are used by this site. Production and hosting by Elsevier B.

Under a Creative Commons license. In this paper, we signcryption an efficient signcryption scheme, based on the hardness of RSA assumption and discrete logarithm problem on conic signcryption over a ring Z n.