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DoubleMod and SingleMod: Simple Randomized Secret-Key Encryption with Bounded Homomorphicity
Approximate GCD problem (AGCD) cryptanalysis cryptography
2016/1/7
An encryption relation f伜Z亊Z with decryption function f−1 is {\it ``group-homomorphic''} if, for any suitable plaintexts x1 and x2, x1+x2=f−1(f(x1)+f(x2)). It is {\it ``ring-homomorphic''}...