163 search results - page 5 / 33 » Relaxing Chosen-Ciphertext Security |
TCC
2009
Springer
14 years 8 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 ...
JOC
2010
13 years 6 months ago
2010
We present a new encryption scheme which is secure against adaptive chosenciphertext attack (or CCA2-secure) in the standard model (i.e. without the use of random oracle). Our sch...
EUROCRYPT
2009
Springer
14 years 8 months ago
2009
Springer
We propose a practical public-key encryption scheme whose security against chosen-ciphertext attacks can be reduced in the standard model to the assumption that factoring is intrac...
CANS
2008
Springer
13 years 9 months ago
2008
Springer
Proxy re-encryption (PRE), introduced by Blaze, Bleumer and Strauss, allows a semi-trusted proxy to convert a ciphertext originally intended for Alice into an encryption of the sa...
ASIACRYPT
2008
Springer
13 years 10 months ago
2008
Springer
Recently Cash, Kiltz, and Shoup [20] showed a variant of the Cramer-Shoup (CS) public key encryption (PKE) scheme [21] whose chosen-ciphertext (CCA) security relies on the computa...