A signcryption scheme with signature directly verifiable by public key

Signcryption, first proposed by Zheng, 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 significantly lower than that needed by the traditional signature-then-encryption approach. In...

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Main Authors: BAO, Feng, DENG, Robert H.
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 1998
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Online Access:https://ink.library.smu.edu.sg/sis_research/3886
https://ink.library.smu.edu.sg/context/sis_research/article/4888/viewcontent/10.1007_2FBFb0054014__1_.pdf
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spelling sg-smu-ink.sis_research-48882018-06-28T08:31:50Z A signcryption scheme with signature directly verifiable by public key BAO, Feng DENG, Robert H. Signcryption, first proposed by Zheng, 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 significantly 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-then-encryption approach. 1998-02-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/3886 info:doi/10.1007/BFb0054014 https://ink.library.smu.edu.sg/context/sis_research/article/4888/viewcontent/10.1007_2FBFb0054014__1_.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Information Security
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic Information Security
spellingShingle Information Security
BAO, Feng
DENG, Robert H.
A signcryption scheme with signature directly verifiable by public key
description Signcryption, first proposed by Zheng, 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 significantly 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-then-encryption approach.
format text
author BAO, Feng
DENG, Robert H.
author_facet BAO, Feng
DENG, Robert H.
author_sort BAO, Feng
title A signcryption scheme with signature directly verifiable by public key
title_short A signcryption scheme with signature directly verifiable by public key
title_full A signcryption scheme with signature directly verifiable by public key
title_fullStr A signcryption scheme with signature directly verifiable by public key
title_full_unstemmed A signcryption scheme with signature directly verifiable by public key
title_sort signcryption scheme with signature directly verifiable by public key
publisher Institutional Knowledge at Singapore Management University
publishDate 1998
url https://ink.library.smu.edu.sg/sis_research/3886
https://ink.library.smu.edu.sg/context/sis_research/article/4888/viewcontent/10.1007_2FBFb0054014__1_.pdf
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