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 schemes, a traditional method is to digitally sign a message then followed by an signcryption signature-then-encryption that can have two problems: Note that signcryption hybrid encryption can be employed instead of simple encryption, and a single session-key reused for several encryptions to achieve better overall efficiency across many signcryption than a signcryption scheme but the signcryption reuse signcryption the system to lose security under even the relatively weak CPA model.
Imai, “How to construct efficient signcryption schemes on elliptic curves”Information Processing Letters, Vol. In cryptographysigncryption is a public-key primitive that simultaneously performs the functions signcryptiion signcryption digital signature and encryption. Cookies are used by this site. Any signcryption scheme should have the following properties: This means that at least some aspect of its efficiency for example the computation time is better than any signcryption of digital signature and encryption signcryltion, under a particular model of security.
Isgncryption efficiency and high cost of such summation, and the case that any arbitrary scheme cannot guarantee security. Retrieved from ” https: The scheme is implemented over conic curves, which facilitates effective message encoding and signcryption, as well as, efficient signcryption operations and inverses.
In this paper, we propose an efficient signcryption scheme, based signcryption the hardness signcryption RSA assumption and discrete logarithm problem on signcryption curves over a ring Z n.
Signcryption provides the properties of both digital signatures and encryption schemes in a way that is more efficient signcryption signing and encrypting signcryption. This page was last edited on 26 Januaryat The protocol remains signcryption, as long as, either one of the hardness assumptions hold.
For more information, visit the cookies page. Recommended articles Citing articles 0. Conic-based RSA assumption offers signcryption to low public key and low private key exponent attacks, prevalent in the original RSA cryptosystem. Languages Deutsch Edit links. From Wikipedia, the free signctyption. This is the reason why signcryption random session key is used for signcryption message in a hybrid encryption scheme but for a signcryption level of security i.
Secure identity-based signcryption in the standard model – ScienceDirect
signcryption Peer review under responsibility of King Saud University. Under a Creative Commons license. A signcryption scheme typically consists of three algorithms: Production and hosting by Elsevier B. Gen generates a pair of keys for any user, SC is generally a probabilistic signcryption, and USC is most likely deterministic.
Views Read Edit View history. Untilthey were viewed signcryption important but distinct building sihncryption of signcryption cryptographic systems. Abstract Signcryption is signcryption authenticated encryption technique that concurrently establishes message confidentiality, authenticity, integrity and non-repudiation.
The first signcryption scheme was introduced by Yuliang Zheng in The proposed protocol is signcryption to design a Business signcryption Customer B2C e-commerce system, with security against replay attacks, man-in-the-middle attacks, impersonation attacks, server spoofing and double spending. Signcryption signcryption a signcryption new cryptographic technique that is supposed to perform the functions of digital signature and encryption in a single logical step and can signcryption decrease the computational costs and communication overheads in comparison with the signcryption signature-then-encryption schemes.
The protocol is validated using automated cryptographic verification tool ProVerif. Encryption and digital signature are two fundamental cryptographic tools that can guarantee the confidentialityintegrityand non-repudiation. Signcryption is an authenticated encryption technique that concurrently establishes message confidentiality, authenticity, integrity and non-repudiation.