555 search results - page 81 / 111 » From ABZ to Cryptography |
134
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TCC
2004
Springer
15 years 7 months ago
2004
Springer
We consider the problem of threshold secret sharing in groups with hierarchical structure. In such settings, the secret is shared among a group of participants that is partitioned ...
171
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EUROCRYPT
1999
Springer
15 years 6 months ago
1999
Springer
Abstract. This paper investigates a novel computational problem, namely the Composite Residuosity Class Problem, and its applications to public-key cryptography. We propose a new t...
106
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CC
2007
Springer
15 years 1 months ago
2007
Springer
We prove that if NP ⊆ BPP, i.e., if SAT is worst-case hard, then for every probabilistic polynomial-time algorithm trying to decide SAT, there exists some polynomially samplable ...
100
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TCC
2009
Springer
16 years 2 months ago
2009
Springer
We present the first hierarchical identity based encryption (HIBE) system that has full security for more than a constant number of levels. In all prior HIBE systems in the literat...
115
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TCC
2009
Springer
16 years 2 months ago
2009
Springer
Verifiable random functions (VRFs), introduced by Micali, Rabin and Vadhan, are pseudorandom functions in which the owner of the seed produces a public-key that constitutes a commi...