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Results tagged with elgamal-encryption
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user 53571
ElGamal is a public key encryption scheme with security based on the discrete logarithm problem.
2
votes
1
answer
1k
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Proof of correctness of an ElGamal encryption given a specific public key
Suppose Alice sends an ElGamal encryption of a value $v$ to Bob (using either the normal or exponential version of ElGamal). E.g. assuming publicly-known $pk_{BOB} = h$ and a generator $g$, Alice sen …
- 334
2
votes
1
answer
819
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Zero Knowledge proof of correct ElGamal encryption
Suppose for $sk = x$, $pk = g^x$ we encrypt message $m$ with ElGamal encryption as $(g^r,m\cdot pk^r)$. My goal is to prove that I performed the encryption correctly, i.e. that the same $r$ is used ac …
- 334