331 search results - page 42 / 67 » Provably Secure Timed-Release Public Key Encryption |
ESORICS
2007
Springer
14 years 1 months ago
2007
Springer
The problem of key management in access hierarchies studies ways to assign keys to users and classes such that each user, after receiving her secret key(s), is able to independentl...
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...
EUROCRYPT
1997
Springer
13 years 11 months ago
1997
Springer
We propose a concept for a worldwide information security infrastructure that protects law-abiding citizens, but not criminals, even if the latter use it fraudulently (i.e. when no...
PQCRYPTO
2010
13 years 9 months ago
2010
Abstract. Recently, the Csignature scheme has been completely broken by Dubois et al. [2, 3]. As a consequence, the security of SFLASH and other multivariate public key systems hav...
CISC
2008
Springer
13 years 9 months ago
2008
Springer
Anonymity is one of the main concerns in group-oriented cryptography. However, most efforts, for instance, group signatures and ring signatures, are only made to provide anonymity ...