Cryptography Lecture 8 Pseudorandom functions
Keyed functions Let F 01 x 01 01 be an efficient deterministic algorithm Define F k x Fk x The first input is called the key A ssume F is length preserving
uniform securecpapseudorandomsecureuniformblockenckciphertextpermutationctrlengthkeyencryptionsecurityfunctionrepeat
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