Questions tagged [indistinguishability]

Ciphertext indistinguishability is property of randomised encryption schemes where it is computationally infeasible to tell if two ciphertexts are encryptions of the same plaintext.

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Is there a public-key, "deal-less", all-or-nothing, "secret-length message" cryptosystem or some easy way to derive it?

I want to make an ecryption algorithm that is secure in, well, really many ways, which is hard I see, so I came up with some ideas of how to implement it using some primitives that I know and I ...
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