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This paper discusses provable security of two types of cascade encryptions. The first construction \CEl, called l-cascade encryption, is obtained by sequentially composing l blockcipher calls with ind...
We introduce and study the iterated random permutation problem, which asks how hard it is to distinguish, in a black-box way, the rth power of a random permutation from a uniformly random permutatio...
The security of cascade blockcipher encryption is an important and well-studied problem in theoretical cryptography with practical implications. It is well-known that double encryption improves the ...

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