Digital Signcryption by. Clayton D. Smith. A thesis presented to the University of Waterloo in fulfilment of the thesis requirement for the degree of. Master of. In cryptography, signcryption is a public-key primitive that simultaneously performs the functions of both digital signature and encryption. Encryption and digital. Download Citation on ResearchGate | Digital Signcryption or How to The current standard method to hieve this aim is “(digital) signature.

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Signcryption Encryption Digital signature Digital data. Untilthey were viewed as important but distinct building blocks of various cryptographic systems. Low efficiency and high cost of such summation, and the case that any arbitrary scheme cannot guarantee security. In cryptographysigncryption is a public-key primitive that simultaneously performs the functions of both digital signature and encryption. Public-key cryptography Authentication Discrete logarithm Cryptographic signcrtption.

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Imai, “How to construct efficient signcryption schemes on elliptic curves”Information Processing Letters, Vol. Any signcryption scheme should have the following properties: Elliptic Curve Cryptosystems Neal Koblitz This is the reason 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 of both digital signatures and encryption schemes in a way that is more efficient than signing and encrypting separately. This paper has highly influenced other papers. 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 efficiency 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.

This page was last edited on 26 Januaryat Encryption and digital signature are two fundamental cryptographic tools that can guarantee the confidentialityintegrityand non-repudiation.

A signcryption scheme typically consists of three algorithms: Signcryption Search for additional papers on this topic.

Signcryption – Wikipedia

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. Retrieved from ” https: The future of integer factorization. Topics Discussed in This Paper. References Publications referenced by this paper. The first signcryption scheme was introduced by Yuliang Zheng in Citation Statistics 1, Citations 0 50 ’96 ’01 ’07 ‘ Showing of extracted citations.


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Signcryption is a relatively new cryptographic technique that is supposed to perform the functions of digital 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. In public key schemes, a signcryptiion method is to digitally sign a message then followed by an encryption signature-then-encryption that can have two problems: FranklinJacques PatarinMichael K.

Gen generates a pair of keys for any user, SC is generally a probabilistic algorithm, and USC is most likely deterministic. Abdul HaleemM Aigncryption Sebastisan From This Paper Figures, tables, and topics from this paper. Citations Publications citing this paper. Communications security Time complexity Computation High-level programming language.