Publication Type

Conference Proceeding Article

Publication Date

2-1998

Abstract

Signcryption, first proposed by Zheng [4, 5], is a cryptographic primitive which combines both the functions of digital signature and public key encryption in a logical single step, and with a computational cost siginficantly lower than that needed by the traditional signature-then-encryption approach. In Zheng's scheme, the signature verification can be done either by the recipient directly (using his private key) or by engaging a zero-knowledge interative protocol with a third party, without disclosing recipient's private key. In this note, we modify Zheng's scheme so that the recipient's private key is no longer needed in signature verification. The computational cost of the modified scheme is higher than that of Zheng's scheme but lower than that of the signature-t hen-encryption approach.

Discipline

Databases and Information Systems | Information Security

Research Areas

Cybersecurity

Publication

Proceedings of the 1st International Workshop on Practice and Theory in Public Key Cryptography: PKC 1998, Yokohama, Japan, February 5–6

First Page

55

Last Page

59

ISBN

9783540646938

Identifier

10.1007/BFb0054014

Publisher

Springer

City or Country

Yokohama, Japan

Additional URL

https://doi.org/10.1007/BFb0054014

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