206 search results - page 1 / 42 » Group-oriented Encryption Secure against Collude Attack |
JCIT
2008
13 years 4 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...
IJNSEC
2011
12 years 11 months ago
2011
Since Al-Riyami and Paterson presented certificateless cryptography, many certificateless schemes have been proposed for different purposes. In this paper, we present a certificate...
COMPSAC
2006
IEEE
13 years 8 months ago
2006
IEEE
This paper proposes an improved free-roaming mobile agent security protocol. The scheme uses "one hop backwards and two hops forwards" chain relation as the protocol cor...
INFORMATICALT
2007
13 years 4 months ago
2007
A generalized group-oriented cryptosystem (GGOC) based on ElGamal cryptosystem was proposed by Yang et al. in 2003. This study shows that if the authorized decryption sets of users...
JOC
2010
13 years 2 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...