163 search results - page 6 / 33 » Relaxing Chosen-Ciphertext Security |
PKC
2010
Springer
13 years 11 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...
INFORMATICALT
2006
13 years 7 months ago
2006
This paper proposes a threshold key escrow scheme from pairing. It tolerates the passive adversary to access any internal data of corrupted key escrow agents and the active adversa...
EUROCRYPT
2007
Springer
13 years 11 months ago
2007
Springer
Motivated by the quest for reducing assumptions in security proofs in cryptography, this paper is concerned with designing efficient symmetric encryption and authentication schemes...
EUROCRYPT
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. We propose a simple and efficient construction of a CCAsecure public-key encryption scheme from any CPA-secure identity-based encryption (IBE) scheme. Our construction re...
FOCS
1999
IEEE
14 years 5 days ago
1999
IEEE
We introduce the notion of non-malleable noninteractive zero-knowledge (NIZK) proof systems. We show how to transform any ordinary NIZK proof system into one that has strong non-m...