permutation cipher

基本解釋

First a review of developing history and designing principle of block cipher is given and the important function of permutation theory in block cipher is presented in this thesis.
本文首先綜述了分組密碼的發(fā)展歷程、設(shè)計原理，以及置換理論在這個體制設(shè)計中的重要作用。
Through these results, we analyze the cryptographic security of random permutation, present a new explication on the significance of choosing quick trickle permutation in cipher designs.
并依據(jù)這些結(jié)論分析了隨機置換的相關(guān)密碼安全性，對在密碼設(shè)計中采用全距置換的意義提供了新的解釋；
By these results, the cryptographic security of random permutation is analyzed, and a new explication is presented on the significance of choosing quick trickle permutation in cipher designs.
依據(jù)這些結(jié)論分析了隨機置換的相關(guān)密碼安全性問題，對在密碼設(shè)計中采用全距置換的意義提供了新的解釋。