14 search results - page 1 / 3 » New Attacks on the Concatenation and XOR Hash Combiners |
CRYPTO
2006
Springer
13 years 8 months ago
2006
Springer
Let H1, H2 be two hash functions. We wish to construct a new hash function H that is collision resistant if at least one of H1 or H2 is collision resistant. Concatenating the outpu...
CORR
2010
Springer
13 years 4 months ago
2010
Springer
Due to implementation constraints the XOR operation is widely used in order to combine plaintext and key bit-strings in secretkey block ciphers. This choice directly induces the cl...
FSE
1994
Springer
13 years 8 months ago
1994
Springer
In this paper we present an improvement of the differential attack on hash functions based on block ciphers. By using the specific properties of the collision attack on hash functi...
CCS
2008
ACM
13 years 6 months ago
2008
ACM
In the Horn theory based approach for cryptographic protocol analysis, cryptographic protocols and (Dolev-Yao) intruders are modeled by Horn theories and security analysis boils d...
EUROCRYPT
2008
Springer
13 years 6 months ago
2008
Springer
Abstract. We develop a new generic long-message second preimage attack, based on combining the techniques in the second preimage attacks of Dean [8] and Kelsey and Schneier [16] wi...