118 search results - page 5 / 24 » Chosen Ciphertext Security with Optimal Ciphertext Overhead |
ACNS
2009
Springer
14 years 2 months ago
2009
Springer
We propose a new variant of the Cramer-Shoup KEM (key encapsulation mechanism). The proposed variant is more efficient than the original Cramer-Shoup KEM scheme in terms of public...
CCS
2005
ACM
14 years 1 months ago
2005
ACM
We describe a new encryption technique that is secure in the standard model against adaptive chosen ciphertext (CCA2) attacks. We base our method on two very efficient Identity-Ba...
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...
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...
ASIACRYPT
2001
Springer
14 years 10 days ago
2001
Springer
Abstract. Semantic security against chosen-ciphertext attacks (INDCCA) is widely believed as the correct security level for public-key encryption scheme. On the other hand, it is o...