Security

Fortification of Transport Layer Security Protocol

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Executive Summary

Proving an identity over a public link is complex when there is communication between Client and Server. Secure Shell protocol is deployed, to determine a client's identity through Password-based key exchange schemes, over a public network, by sharing a (short) password only, with a session key. Most of the existing schemes are vulnerable to various dictionary attacks. SSL is the de facto standard today for securing end to end transport. While the protocol seems rather secure there are a number of risks which lurk in its use. The focus of the paper is on the analysis of very efficient schemes on password-based authenticated key-exchange methods.

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