21 search results - page 1 / 5 » Anonymous Hierarchical Identity-Based Encryption (Without Ra... |
CRYPTO
2006
Springer
13 years 8 months ago
2006
Springer
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
EUROCRYPT
2006
Springer
13 years 8 months ago
2006
Springer
We present an Identity Based Encryption (IBE) system that is fully secure in the standard model and has several advantages over previous such systems
CRYPTO
2004
Springer
13 years 9 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...
PQCRYPTO
2010
13 years 8 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 ...
ASIACRYPT
2006
Springer
13 years 8 months ago
2006
Springer
Abstract. At Eurocrypt 2005, Waters presented an identity based encryption (IBE) protocol which is secure in the full model without random oracle. In this paper, we extend Waters&#...