56 search results - page 3 / 12 » Chosen-Ciphertext Security from Identity-Based Encryption |
TIT
2011
13 years 10 days 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...
PKC
2010
Springer
13 years 9 months ago
2010
Springer
Lossy Trapdoor Functions (LTDFs), introduced by Peikert and Waters (STOC 2008) have been useful for building many cryptographic primitives. In particular, by using an LTDF that los...
EUROCRYPT
2010
Springer
13 years 10 months ago
2010
Springer
We introduce the notion of adaptive trapdoor functions (ATDFs); roughly, ATDFs remain one-way even when the adversary is given access to an inversion oracle. Our main application ...
TCC
2009
Springer
14 years 6 months ago
2009
Springer
We initiate the study of one-wayness under correlated products. We are interested in identifying necessary and sufficient conditions for a function f and a distribution on inputs ...
ACNS
2007
Springer
13 years 11 months ago
2007
Springer
We present two transforms to acquire chosen ciphertext security from tag based techniques. The first one requires the separability of underlying primitives. By separability, info...