DocumentCode :
1378531
Title :
Cryptanalysis and improvement of signcryption schemes
Author :
Petersen, H. ; Michels, M.
Author_Institution :
r3 Security Eng., Wetzikon, Switzerland
Volume :
145
Issue :
2
fYear :
1998
fDate :
3/1/1998 12:00:00 AM
Firstpage :
149
Lastpage :
151
Abstract :
In 1997, two new schemes for authenticated encryption, called signcryption, were proposed by Zheng. In the paper, the authors point out a serious problem with these schemes. In fact, the way to gain nonrepudiation violates the confidentiality. The authors compare the schemes to previously known authenticated encryption schemes which were not mentioned by Zheng. Finally, the authors outline a solution that helps to overcome the problem
Keywords :
cryptography; authenticated encryption; confidentiality; cryptanalysis; nonrepudiation; signcryption;
fLanguage :
English
Journal_Title :
Computers and Digital Techniques, IEE Proceedings -
Publisher :
iet
ISSN :
1350-2387
Type :
jour
DOI :
10.1049/ip-cdt:19981862
Filename :
674995
Link To Document :
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