Revision and Enhancement of Two Three Party Key Agreement Protocols Vulnerable to KCI Attacks

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Provided by: University of Rochester
Topic: Security
Format: PDF
The authors have shown that the three party key agreement protocols recently published in the literature by the researchers are not resilient to KCI attacks although their authors claim the contrary. Designing secure key agreement protocols is far from being a simple task, such protocols involve so many details and complicated interactions between different cryptographic primitives that it is nearly impossible to establish beyond doubt that they are infallible. Indeed, in the history of this paper there is an abundance of protocols that were more or less trivially broken regardless of whether formal or heuristic arguments were provided to support security claims.
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