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CRYPTO
2003
Springer
173views Cryptology» more  CRYPTO 2003»
14 years 20 days ago
A Tweakable Enciphering Mode
We describe a block-cipher mode of operation, CMC, that turns an n-bit block cipher into a tweakable enciphering scheme that acts on strings of mn bits, where m ≥ 2. When the und...
Shai Halevi, Phillip Rogaway
ICISS
2009
Springer
13 years 5 months ago
On Some Weaknesses in the Disk Encryption Schemes EME and EME2
Abstract. Tweakable enciphering schemes are a certain type of blockcipher mode of operation which provide security in the sense of a strong pseudo-random permutation. It has been p...
Cuauhtemoc Mancillas-López, Debrup Chakrabo...
CISC
2005
Springer
129views Cryptology» more  CISC 2005»
14 years 29 days 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
TC
2010
13 years 2 months ago
Reconfigurable Hardware Implementations of Tweakable Enciphering Schemes
Tweakable enciphering schemes are length preserving block cipher modes of operation that provide a strong pseudo-random permutation. It has been suggested that these schemes can b...
Cuauhtemoc Mancillas-López, Debrup Chakrabo...
FSE
2007
Springer
104views Cryptology» more  FSE 2007»
14 years 1 months ago
How to Enrich the Message Space of a Cipher
Abstract. Given (deterministic) ciphers E and E that can encipher messages of l and n bits, respectively, we construct a cipher E∗ = XLS[E, E] that can encipher messages of l + s...
Thomas Ristenpart, Phillip Rogaway