Cryptanalysis of modified authenticated key agreement protocol
Journal
Electronics Letters
Journal Volume
36
Journal Issue
21
Pages
1770-1771
Date Issued
2000-10
Date
2000-10
Author(s)
Ku, Wei-Chi
Abstract
Seo and Sweeney proposed a simple key agreement protocol which intended to act as a Diffie-Hellman scheme with user authentication. In the Seo and Sweeney protocol, two parties who have shared a common password can establish a session key by exchanging two messages. Tseng addressed a weakness in the key validation steps of the Seo-Sweeney protocol. The adversary can fool the honest party into believing a wrong session key. Tseng modified the key validation steps of the protocol and claimed that the key validation can be achieved in the modified protocol.
Other Subjects
Algorithms; Cryptography; Security of data; Cryptoanalysis; Key agreement protocol; Network protocols
Type
journal article
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