Sciweavers

22 search results - page 1 / 5
» New Local Collisions for the SHA-2 Hash Family
Sort
View
ICISC
2007
97views Cryptology» more  ICISC 2007»
13 years 6 months ago
New Local Collisions for the SHA-2 Hash Family
The starting point for collision attacks on practical hash functions is a local collision. In this paper, we make a systematic study of local collisions for the SHA-2 family. The p...
Somitra Kumar Sanadhya, Palash Sarkar
ACISP
2008
Springer
13 years 11 months ago
Non-linear Reduced Round Attacks against SHA-2 Hash Family
Most of the attacks against (reduced) SHA-2 family in literature have used local collisions which are valid for linearized version of SHA-2 hash functions. Recently, at FSE ’08, ...
Somitra Kumar Sanadhya, Palash Sarkar
CCS
2009
ACM
14 years 5 months ago
A new hash family obtained by modifying the SHA-2 family
In this work, we study several properties of the SHA-2 design which have been utilized in recent collision attacks against reduced round SHA-2. Small modifications to the SHA-2 des...
Somitra Kumar Sanadhya, Palash Sarkar
IACR
2011
166views more  IACR 2011»
12 years 4 months ago
Bicliques for Preimages: Attacks on Skein-512 and the SHA-2 family
We introduce a new concept in splice-and-cut attacks on hash functions, which bridges the gap between preimage attacks and a powerful method of differential cryptanalysis. The ne...
Dmitry Khovratovich, Christian Rechberger, Alexand...
ISCAS
2003
IEEE
114views Hardware» more  ISCAS 2003»
13 years 10 months ago
On the hardware implementations of the SHA-2 (256, 384, 512) hash functions
Couple to the communications wired and unwired networks growth, is the increasing demand for strong secure data transmission. New cryptographic standards are developed, and new en...
Nicolas Sklavos, Odysseas G. Koufopavlou