Protocol analysis is the detailed analysis of the security of an abstract or concrete cryptographic protocol.

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Modifying algebraic secrecy message to use digital certificates

I have the following message: sign((M’, T$_A$, sign((encrypt((encrypt(M, $K_{pbB}$), M’), K), T$_B$), $K_{sB}$)), $K_{sA}$) Sign is used for signature generation. Encrypt is used for ...
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Construction of ElGamal signature?

This month I am trying to study cryptography by myself. I started to read theory and problems on the internet. I found this problem on a cryptography site and I need your help for a solution or any ...