Logical Relations for Encryption
Logical Relations for Encryption
Logical Relations for Encryption
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Secrecy ≅ Non-Interference ≅<br />
Contextual Equivalence<br />
[Q] How to state the (partial) secrecy of the<br />
value of i?<br />
[A] By conditional non-interference:<br />
if i ≡ j (mod 2), then p(i) and p(j) are<br />
equivalent under any context<br />
"Outsiders cannot observe<br />
the difference of the secret"
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