[cryptography] Minimally Sufficient Cryptosystem

Alexander Klimov alserkli at inbox.ru
Tue Jul 5 13:23:42 EDT 2011

On Tue, 5 Jul 2011, Scott Guthery wrote:
> the following cryptosystem was minimally sufficient:
> XOR Key / Permutation / XOR Key

"A Construction of a Cipher From a Single Pseudorandom Permutation"

One can see it as a hint that building a keyless pseudorandom
permutation is not simpler than encryption.


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