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Salsa20 in Davies-Meyer mode with a fixed key (message): is it one-way?
Say I have a function that calculates a pseudo random permutation and this function is easy to invert. For example $P(i) = AES_k(i)$ where $k$ is a publicly known key. So anyone can compute $P(i)$ ...
Sep 13 '13 at 10:35
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