Analysis and extension of some secret handshake schemes
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Date
2016-03
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Trust establishment during the secure communication is very important as trust establishment become delicate when it involves the exchange of sensitive secret information. Recently introduce secret handshake primitive tackled this problem, which allows two user to authenticate each other secretly and derive a shared common session key only if they both belong to the same organization, otherwise they learn nothing about each other. In this thesis, we present four secret handshake protocols. At first, we focus on secret handshake based on ElGamal and DSA signature and introduce two secret handshake schemes based on variations of DSA signature which are secure under random oracle model. Then we concentrate on ZSS signature and construct two schemes with two different features, one is secret handshake with dynamic matching and another is secret handshake with unlinkability. Both the schemes are secure under bilinear inverse Diffie-Hellman assumption. We also cryptanalysis an existing scheme of unlinkable secret handshake. All developed protocols can be helpful in real life problems in which two entities wish to communicate secretly and want to establish a session key without being observed or detected
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