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SCN
2010
Springer
163views Communications» more  SCN 2010»
14 years 9 months ago
Time-Specific Encryption
This paper introduces and explores the new concept of Time-Specific Encryption (TSE). In (Plain) TSE, a Time Server broadcasts a key at the beginning of each time unit, a Time Inst...
Kenneth G. Paterson, Elizabeth A. Quaglia
EUROCRYPT
2004
Springer
15 years 4 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
ASIACRYPT
2008
Springer
15 years 1 months ago
Efficient Chosen Ciphertext Secure Public Key Encryption under the Computational Diffie-Hellman Assumption
Recently Cash, Kiltz, and Shoup [20] showed a variant of the Cramer-Shoup (CS) public key encryption (PKE) scheme [21] whose chosen-ciphertext (CCA) security relies on the computa...
Goichiro Hanaoka, Kaoru Kurosawa
CODCRY
2009
Springer
111views Cryptology» more  CODCRY 2009»
15 years 5 months ago
On the Impossibility of Strong Encryption Over
We give two impossibility results regarding strong encryption over an infinite enumerable domain. The first one relates to statistically secure one-time encryption. The second on...
Raphael C.-W. Phan, Serge Vaudenay
FSE
2006
Springer
132views Cryptology» more  FSE 2006»
15 years 2 months ago
New Blockcipher Modes of Operation with Beyond the Birthday Bound Security
In this paper, we define and analyze a new blockcipher mode of operation for encryption, CENC, which stands for Cipher-based ENCryption. CENC has the following advantages: (1) bey...
Tetsu Iwata