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Sonic: Zero-Knowledge SNARKs from Linear-Size Universal and Updateable Structured Reference Strings
zero knowledge zk-SNARKs universal SRS
2019/2/27
Zero-knowledge proofs have become an important tool for addressing privacy and scalability concerns in cryptocurrencies and other applications. In many systems each client downloads and verifies every...
Updatable and Universal Common Reference Strings with Applications to zk-SNARKs
zero-knowledge common reference strings subvertability
2018/3/23
By design, existing (pre-processing) zk-SNARKs embed a secret trapdoor in a relation-dependent common reference strings (CRS). The trapdoor is exploited by a (hypothetical) simulator to prove the sche...
Efficient Two-Move Blind Signatures in the Common Reference String Model
Two-Move Blind Signatures the Common Reference String Model
2010/11/10
Blind signatures provide a mechanism for achieving privacy and anonymity whereby a user gets the signer to sign a message of his choice without the signer learning the content of the message, nor link...
Password-Authenticated Constant-Round Group Key Establishment with a Common Reference String
group key establishment password-based authentication
2008/12/1
A provably secure password-authenticated protocol for group
key establishment in the common reference string (CRS) model is presented.
Our construction assumes the participating users to share a com...
Universally Composable Multi-Party Computation with an Unreliable Common Reference String
Universally Composable Multi-Party Computation Unreliable Common Reference String UC
2008/5/28
Universally composable (UC) multi-party computation has been studied in two settings.
When a majority of parties are honest, UC multi-party computation is possible without
any assumptions. Without a...