94 search results - page 4 / 19 » Proxy Re-signature Schemes Without Random Oracles |
TIT
2011
13 years 2 months ago
2011
Abstract. In 1998, Blaze, Bleumer, and Strauss proposed a cryptographic primitive called proxy re-encryption, in which a proxy transforms – without seeing the corresponding plain...
AFRICACRYPT
2010
Springer
14 years 2 months ago
2010
Springer
A fair blind signature is a blind signature with revocable anonymity and unlinkability, i.e., an authority can link an issuing session to the resulting signature and trace a signat...
TCC
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We show a new protocol for blind signatures in which security is preserved even under arbitrarily-many concurrent executions. The protocol can be based on standard crypto...
PKC
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. Key-insulated cryptography is a crucial technique for protecting private keys. To strengthen the security of key-insulated protocols, Hanaoka, Hanaoka and Imai recently i...
DCC
2008
IEEE
14 years 7 months ago
2008
IEEE
In this paper, we formally prove that padding the plaintext with a random bit-string provides the semantic security against chosen plaintext attack (IND-CPA) for the McEliece (and ...