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Unconditionally Secure and Universally Composable Commitments from Physical Assumptions
UC hardware assumptions unconditional security commitment scheme
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2013/4/18
We present a constant-round unconditional black-box compiler, that transforms any ideal straight- line extractable commitment scheme, into an extractable and equivocal commitment scheme, therefore yie...
Highly-Efficient Universally-Composable Commitments based on the DDH Assumption
cryptographic protocols / universal composability commitment schemes concrete efficiency
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2012/3/28
Universal composability (or UC security) provides very strong security guarantees for protocols that run in complex real-world environments. In particular, security is guaranteed to hold when the prot...
Universally Composable Commitments
Commitment schemes concurrent composition non-malleability
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2009/4/16
We propose a new security measure for commitment protocols, called Universally Composable
(UC) Commitment. The measure guarantees that commitment protocols behave like an \ideal
commitment service,"...