332 search results - page 53 / 67 » Token-Controlled Public Key Encryption |
ASIACRYPT
2007
Springer
14 years 2 months ago
2007
Springer
We consider a new model for online secure computation on encrypted inputs in the presence of malicious adversaries. The inputs are independent of the circuit computed in the sense ...
ACISP
2005
Springer
14 years 2 months ago
2005
Springer
We present the first group signature scheme with provable security and signature size O(λ) bits where the group manager, the group members, and the Open Authority (OA) are all id...
CCS
2009
ACM
14 years 9 months ago
2009
ACM
In a proxy re-encryption (PRE) scheme [4], a proxy, authorized by Alice, transforms messages encrypted under Alice's public key into encryptions under Bob's public key w...
ASIACRYPT
2009
Springer
14 years 3 months ago
2009
Springer
We present a new construction of non-committing encryption schemes. Unlike the previous constructions of Canetti et al. (STOC ’96) and of Damg˚ard and Nielsen (Crypto ’00), ou...
TCC
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. We present a public-key encryption scheme with the following properties. Given a branching program P and an encryption c of an input x, it is possible to efficiently com...