Score:2

To prove equality/inequality of plaintexts of 2 ciphertexts encypted under different encryption schemes

bv flag

We have 2 ciphertexts, one encrypted using Paillier and another encrypted under Elgamal encryption schemes. Is there a way to design ZK-proof to prove equality of the underlying plaintexts of these 2 ciphertexts.

Lev avatar
jp flag
Lev
I'd say this is quite straightforward via generic proof systems if the encryption protocols can be easily represented as arithmetic circuits over the same field, which is not the case here.
mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.