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CCS
2005
ACM
13 years 10 months ago
Direct chosen ciphertext security from identity-based techniques
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...
Xavier Boyen, Qixiang Mei, Brent Waters
EUROCRYPT
2009
Springer
14 years 5 months ago
Practical Chosen Ciphertext Secure Encryption from Factoring
We propose a practical public-key encryption scheme whose security against chosen-ciphertext attacks can be reduced in the standard model to the assumption that factoring is intrac...
Dennis Hofheinz, Eike Kiltz
ASIACRYPT
2001
Springer
13 years 9 months ago
Threshold Cryptosystems Secure against Chosen-Ciphertext Attacks
Abstract. Semantic security against chosen-ciphertext attacks (INDCCA) is widely believed as the correct security level for public-key encryption scheme. On the other hand, it is o...
Pierre-Alain Fouque, David Pointcheval
CTRSA
2006
Springer
157views Cryptology» more  CTRSA 2006»
13 years 8 months ago
How to Construct Multicast Cryptosystems Provably Secure Against Adaptive Chosen Ciphertext Attack
Abstract. In this paper we present a general framework for constructing efficient multicast cryptosystems with provable security and show that a line of previous work on multicast ...
Yitao Duan, John F. Canny
EUROCRYPT
2004
Springer
13 years 10 months ago
Chosen-Ciphertext Security from Identity-Based Encryption
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...
Ran Canetti, Shai Halevi, Jonathan Katz