14 search results - page 2 / 3 » Using Hash Functions as a Hedge against Chosen Ciphertext At... |
ASIACRYPT
2000
Springer
13 years 9 months ago
2000
Springer
Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against ...
TCC
2009
Springer
14 years 5 months ago
2009
Springer
We initiate the study of one-wayness under correlated products. We are interested in identifying necessary and sufficient conditions for a function f and a distribution on inputs ...
IACR
2011
12 years 4 months ago
2011
In this paper we present the first public key encryption scheme that is structure preserving, i.e., our encryption scheme uses only algebraic operations. In particular it does not...
SCN
2008
Springer
13 years 4 months ago
2008
Springer
In this paper, we build, in a generic way, two asymmetric cryptosystems with a careful study of their security. We present first an additively homomorphic scheme which generalizes,...
ICIP
2008
IEEE
13 years 11 months ago
2008
IEEE
In many applications, it is often desirable to extract a consistent key from a multimedia object (e.g., an image), even when the object has gone through a noisy channel. For examp...