作者: Michael Gorski , Stefan Lucks , Thomas Peyrin
DOI: 10.1007/978-3-540-89255-7_10
关键词: Cryptographic hash function 、 Hash function 、 Double hashing 、 MDC-2 、 Theoretical computer science 、 Computer security 、 Collision resistance 、 Collision attack 、 SHA-2 、 Hash chain 、 Mathematics
摘要: This paper studies the application of slide attacks to hash functions. Slide have mostly been used for block cipher cryptanalysis. But, as shown in current paper, they also form a potential threat functions, namely sponge-function like structures. As it turns out, certain constructions hash-function-based MACs can be vulnerable forgery and even key recovery attacks. In other cases, we at least distinguish given function from random oracle. To illustrate our results, describe against Grindahl -256 -512 To best knowledge, this is first cryptanalytic result on -512. Furthermore, point out slide-based distinguisher attack slightly modified version RadioGatun . We finally discuss simple countermeasures defense