73 search results - page 3 / 15 » Practical Chosen Ciphertext Secure Encryption from Factoring |
TIT
2011
14 years 4 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...
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CCS
2005
ACM
15 years 3 months ago
2005
ACM
We describe a new encryption technique that is secure in the standard model against adaptive chosen ciphertext (CCA2) attacks. We base our method on two very efficient Identity-Ba...
CANS
2008
Springer
14 years 11 months ago
2008
Springer
Proxy re-encryption (PRE), introduced by Blaze, Bleumer and Strauss, allows a semi-trusted proxy to convert a ciphertext originally intended for Alice into an encryption of the sa...
PKC
2010
Springer
15 years 1 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
15 years 2 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 ...