IACR
2011
12 years 4 months ago
2011
We present a method to compile Yao’s two-player garbled circuit protocol into one that is secure against malicious adversaries that relies on witness indistinguishability. Our ap...
IACR
2011
12 years 4 months ago
2011
We put forward the notion of targeted malleability: given a homomorphic encryption scheme, in various scenarios we would like to restrict the homomorphic computations one can perf...
PODC
2011
ACM
12 years 7 months ago
2011
ACM
We present a cryptographic framework to achieve access control, privacy of social relations, secrecy of resources, and anonymity of users in social networks. The main idea is to u...
CTRSA
2011
Springer
12 years 8 months ago
2011
Springer
Non-malleability of a cryptographic primitive is a fundamental security property which ensures some sort of independence of cryptographic values. The notion has been extensively st...
ECCC
2006
13 years 4 months ago
2006
We prove a number of general theorems about ZK, the class of problems possessing (computational) zero knowledge proofs. Our results are unconditional, in contrast to most previous...
ASIAN
2009
Springer
13 years 5 months ago
2009
Springer
In cryptographic protocols, zero knowledge proofs are employed for a principal A to communicate some non-trivial information t to B while at the same time ensuring that B cannot de...
CSR
2006
Springer
13 years 8 months ago
2006
Springer
In this paper we classify several algorithmic problems in group theory in the classes PZK and SZK (problems with perfect/statistical zero-knowledge proofs respectively). Prior to ...