Sciweavers

87 search results - page 2 / 18
» On Hashing with Tweakable Ciphers
Sort
View
CTRSA
2011
Springer
189views Cryptology» more  CTRSA 2011»
12 years 8 months ago
Online Ciphers from Tweakable Blockciphers
Abstract. Online ciphers are deterministic length-preserving permutations EK : ({0, 1}n )+ → ({0, 1}n )+ where the i-th block of ciphertext depends only on the first i blocks of...
Phillip Rogaway, Haibin Zhang
INFORMATICASI
2002
128views more  INFORMATICASI 2002»
13 years 5 months ago
Cryptanalysis of Some Hash Functions Based on Block Ciphers and Codes
At PKC 2000, Inoue and Sakurai proposed some methods to design hash functions from block ciphers and codes (block codes and convolutional codes). They claimed that their hash func...
Hongjun Wu, Feng Bao, Robert H. Deng
TCC
2010
Springer
231views Cryptology» more  TCC 2010»
14 years 2 months ago
A Domain Extender for the Ideal Cipher
We describe the first domain extender for ideal ciphers, i.e. we show a construction that is indifferentiable from a 2n-bit ideal cipher, given a n-bit ideal cipher. Our construc...
Jean-Sébastien Coron, Yevgeniy Dodis, Avrad...
JOC
1998
135views more  JOC 1998»
13 years 5 months ago
Attacks on Fast Double Block Length Hash Functions
The security of hash functions based on a block cipher with a block length of m bits and a key length of k bits, where k ≤ m, is considered. New attacks are presented on a large ...
Lars R. Knudsen, Xuejia Lai, Bart Preneel
SACRYPT
2007
Springer
13 years 11 months ago
The Security of the Extended Codebook (XCB) Mode of Operation
Abstract. The XCB mode of operation was outlined in 2004 as a contribution to the IEEE Security in Storage effort, but no security analysis was provided. In this paper, we provide...
David A. McGrew, Scott R. Fluhrer