221 search results - page 18 / 45 » Secure Public Instant Messaging |
IJNSEC
2008
13 years 7 months ago
2008
In a blind signature scheme, the user can get a signature sig(m) on message m generated from the signer's blind signature sig(m ) on blinded message m , but the signer can�...
DCC
2003
IEEE
14 years 7 months ago
2003
IEEE
In this paper we discuss the security of digital signature schemes based on error? correcting codes. Several attacks to the Xinmei scheme are surveyed, and some reasons given to e...
JOC
2007
13 years 7 months ago
2007
Signcryption is a public key or asymmetric cryptographic method that provides simultaneously both message confidentiality and unforgeability at a lower computational and communica...
IEEECIT
2005
IEEE
14 years 1 months ago
2005
IEEE
An identity based cryptosystem is a novel type of public cryptographic scheme in which the public keys of the users are their identities or strings derived from their identities. ...
CCS
2009
ACM
14 years 8 months ago
2009
ACM
In a proxy re-encryption (PRE) scheme [4], a proxy, authorized by Alice, transforms messages encrypted under Alice's public key into encryptions under Bob's public key w...