12 search results - page 1 / 3 » New Techniques for Dual System Encryption and Fully Secure H... |
TCC
2010
Springer
14 years 1 months ago
2010
Springer
We construct a fully secure HIBE scheme with short ciphertexts. The previous construction of Boneh, Boyen, and Goh was only proven to be secure in the selective model, under a non...
CRYPTO
2009
Springer
13 years 11 months ago
2009
Springer
We present a new methodology for proving security of encryption systems using what we call Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption ...
ITIIS
2010
12 years 11 months ago
2010
Anonymous hierarchical identity based encryption (HIBE) is an extension of identity based encryption (IBE) that can use an arbitrary string like an e-mail address for a public key...
EUROCRYPT
2010
Springer
13 years 9 months ago
2010
Springer
In this paper, we present two fully secure functional encryption schemes. Our first result is a fully secure attribute-based encryption (ABE) scheme. Previous constructions of AB...
CRYPTO
2010
Springer
13 years 6 months ago
2010
Springer
We present a technique for delegating a short lattice basis that has the advantage of keeping the lattice dimension unchanged upon delegation. Building on this result, we construct...