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ASIACRYPT
2007
Springer
14 years 3 months ago
Bounded CCA2-Secure Encryption
Abstract. Whereas encryption schemes withstanding passive chosenplaintext attacks (CPA) can be constructed based on a variety of computational assumptions, only a few assumptions a...
Ronald Cramer, Goichiro Hanaoka, Dennis Hofheinz, ...
EUROCRYPT
2003
Springer
14 years 2 months ago
A Simpler Construction of CCA2-Secure Public-Key Encryption under General Assumptions
Abstract. In this paper we present a simpler construction of a publickey encryption scheme that achieves adaptive chosen ciphertext security (CCA2), assuming the existence of trapd...
Yehuda Lindell
CTRSA
2008
Springer
172views Cryptology» more  CTRSA 2008»
13 years 11 months ago
CCA2 Secure IBE: Standard Model Efficiency through Authenticated Symmetric Encryption
We propose two constructions of chosen-ciphertext secure identity-based encryption (IBE) schemes. Our schemes have a security proof in the standard model, yet they offer performan...
Eike Kiltz, Yevgeniy Vahlis
PROVSEC
2007
Springer
14 years 3 months ago
CCA2-Secure Threshold Broadcast Encryption with Shorter Ciphertexts
In a threshold broadcast encryption scheme, a sender chooses (ad-hoc) a set of n receivers and a threshold t, and then encrypts a message by using the public keys of all the recei...
Vanesa Daza, Javier Herranz, Paz Morillo, Carla R&...
INDOCRYPT
2005
Springer
14 years 2 months ago
A Universally Composable Scheme for Electronic Cash
We propose a scheme for electronic cash based on symmetric primitives. The scheme is secure in the framework for universal composability assuming the existence of a symmetric CCA2-...
Mårten Trolin