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Proofs of Ignorance and Applications to 2-Message Witness Hiding
Witness Hiding Witness Indistinguishability Zero Knowledge
2018/11/9
We consider the following paradoxical question: Can one prove lack of knowledge? We define the notion of Proofs of Ignorance, construct such proofs, and use these proofs to construct a 2-message witne...
Delegateable Signature Using Witness Indistinguishable and Witness Hiding Proofs
Digital signature delegateable signature zero-knowledge proof system
2009/4/3
A delegateable signature scheme is a signature scheme where the owner of the signing
key(Alice) can securely delegate to another party(Bob) the ability to sign on Alice's behalf
on a restricted subs...