97 search results - page 13 / 20 » Public-Key Encryption in the Bounded-Retrieval Model |
FOCS
2009
IEEE
14 years 4 months ago
2009
IEEE
Abstract— Under CPA and CCA1 attacks, a secure bit encryption scheme can be applied bit-by-bit to construct a secure many-bit encryption scheme. The same construction fails, howe...
CCS
2007
ACM
14 years 3 months ago
2007
ACM
In this paper we construct two new fuzzy identity-based encryption (IBE) schemes in the random oracle model. Not only do our schemes provide public parameters whose size is indepe...
CISC
2008
Springer
13 years 11 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 ...
IACR
2011
12 years 9 months ago
2011
We consider the question of how to store a value secretly on devices that continually leak information about their internal state to an external attacker. If the secret value is s...
CCS
2009
ACM
14 years 10 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...