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Published in:
2005 | OriginalPaper | Chapter
On the Security of Some Password-Based Key Agreement Schemes
Authors : Qiang Tang, Chris J. Mitchell
Published in: Computational Intelligence and Security
Publisher: Springer Berlin Heidelberg
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In this paper we show that three potential security vulnerabilities exist in the strong password-only authenticated key exchange scheme due to Jablon. Two standardised schemes based on Jablon’s scheme, namely the first password-based key agreement mechanism in ISO/IEC FCD 11770-4 and the scheme BPKAS-SPEKE in IEEE P1363.2 also suffer from some of these security vulnerabilities. We further show that other password-based key agreement mechanisms, including those in ISO/IEC FCD 11770-4 and IEEE P1363.2, also suffer from these security vulnerabilities. Finally, we propose means to remove these security vulnerabilities.