163 search results - page 9 / 33 » Relaxing Chosen-Ciphertext Security |
JCIT
2008
13 years 7 months ago
2008
A group oriented encryption scheme is presented in this paper. In this scheme, a sender is allowed to encrypt a message using the group public key and send the ciphertext to the gr...
PKC
2004
Springer
14 years 1 months ago
2004
Springer
In a practical system, a message is often encrypted more than once by different encryptions, here called multiple encryption, to enhance its security. Additionally, new features ...
SCN
2008
Springer
13 years 7 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,...
PROVSEC
2009
Springer
14 years 2 months ago
2009
Springer
Signcryption is a cryptographic primitive that provides authentication and confidentiality simultaneously in a single logical step. It is often required that multiple senders have...
ACISP
2010
Springer
13 years 9 months ago
2010
Springer
We introduce the concept of attribute-based authenticated key exchange (AB-AKE) within the framework of ciphertext policy attribute-based systems. A notion of AKE-security for AB-A...