82 search results - page 2 / 17 » On Notions of Security for Deterministic Encryption, and Eff... |
CTRSA
2006
Springer
13 years 9 months ago
2006
Springer
Abstract. We present a non-interactive chosen ciphertext secure threshold encryption system. The proof of security is set in the standard model and does not use random oracles. Our...
PQCRYPTO
2010
13 years 9 months ago
2010
Abstract. We propose a variant of the “bonsai tree” signature scheme, a latticebased existentially unforgeable signature scheme in the standard model. Our construction offers ...
CRYPTO
2004
Springer
13 years 10 months ago
2004
Springer
We construct two efficient Identity Based Encryption (IBE) systems that are selective identity secure without the random oracle model. Selective identity secure IBE is a slightly w...
EUROCRYPT
2006
Springer
13 years 9 months ago
2006
Springer
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
CCS
2007
ACM
13 years 11 months ago
2007
ACM
In this work we re-visit the question of building cryptographic primitives that remain secure even when queried on inputs that depend on the secret key. This was investigated by B...