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PKC
2009
Springer
115views Cryptology» more  PKC 2009»
14 years 5 months ago
Compact CCA-Secure Encryption for Messages of Arbitrary Length
This paper proposes a chosen-ciphertext secure variant of the ElGamal public-key encryption scheme which generates very compact ciphertexts for messages of arbitrary length. The ci...
Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto
CISC
2005
Springer
129views Cryptology» more  CISC 2005»
13 years 10 months ago
HCTR: A Variable-Input-Length Enciphering Mode
This paper proposes a blockcipher mode of operation, HCTR, which is a length-preserving encryption mode. HCTR turns an n-bit blockcipher into a tweakable blockcipher that supports ...
Peng Wang, Dengguo Feng, Wenling Wu
CRYPTO
2007
Springer
88views Cryptology» more  CRYPTO 2007»
13 years 11 months ago
Invertible Universal Hashing and the TET Encryption Mode
This work describes a mode of operation, TET, that turns a regular block cipher into a length-preserving enciphering scheme for messages of (almost) arbitrary length. When using a...
Shai Halevi
IEICET
2010
105views more  IEICET 2010»
13 years 3 months ago
Between Hashed DH and Computational DH: Compact Encryption from Weaker Assumption
In this paper, we introduce the intermediate hashed Diffie-Hellman (IHDH) assumption which is weaker than the hashed DH (HDH) assumption (and thus the decisional DH assumption), a...
Goichiro Hanaoka, Kaoru Kurosawa
CRYPTO
2012
Springer
327views Cryptology» more  CRYPTO 2012»
11 years 7 months ago
Functional Encryption for Regular Languages
We provide a functional encryption system that supports functionality for regular languages. In our system a secret key is associated with a Deterministic Finite Automata (DFA) M....
Brent Waters