DocumentCode
1360978
Title
Improvement of Harn´s digital signature for Diffie-Hellman public keys
Author
He, Wei-Hua ; Wu, Tzong-Chen
Author_Institution
Dept. of Inf. Manage., Nat. Taiwan Inst. of Technol., Taipei, Taiwan
Volume
33
Issue
15
fYear
1997
fDate
7/17/1997 12:00:00 AM
Firstpage
1304
Lastpage
1305
Abstract
Recently, Harn proposed a digital signature for Diffie-Hellman public keys without using a one-way function (see Electron. Lett, 1997, 33, (2), pp. 125-126). In the Letter, the authors show that Harn´s digital signature is not secure enough to withstand the Nyberg-Rueppel attack. That is, an adversary who discloses one session key subsequently distributed by the same key exchange protocol. An improvement to Harn´s digital signature that can overcome the weakness stated above is also proposed
Keywords
protocols; public key cryptography; Diffie-Hellman public keys; Harn´s digital signature; Nyberg-Rueppel attack; key exchange protocol; session key;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970853
Filename
606069
Link To Document