91 search results - page 3 / 19 » Linearization Attacks Against Syndrome Based Hashes |
CCS
2009
ACM
14 years 9 months ago
2009
ACM
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...
ICIP
2004
IEEE
14 years 10 months ago
2004
IEEE
In this paper we suggest viewing images (as well as attacks on them) as a sequence of linear operators and propose novel hashing algorithms employing transforms that are based on ...
PKC
1998
Springer
14 years 25 days ago
1998
Springer
One-way hash functions are an important tool in achieving authentication and data integrity. The aim of this paper is to propose a novel one-way hash function based on cellular aut...
CRYPTO
2001
Springer
14 years 1 months ago
2001
Springer
We initiate a study of on-line ciphers. These are ciphers that can take input plaintexts of large and varying lengths and will output the ith block of the ciphertext after having p...
JOC
2010
13 years 7 months ago
2010
We present a new encryption scheme which is secure against adaptive chosenciphertext attack (or CCA2-secure) in the standard model (i.e. without the use of random oracle). Our sch...