New Second- Preimage Attacks on Hash Functions. Journal of Cryptology, 2010.Elena Andreeva, Charles Bouillaguet, Pierre-Alain Fouque, Jonathan Hoch, John Kelsey, Adi Shamir, Sbastien Zimmer, New second preimage
We present two (related) dedicated hash functions that deliberately borrow heavily from the block ciphers that appeared in the final stages of the AES process. We explore the computational trade-off between the key schedule and encryption in a block cipher-based hash function and we illustrate our...
Preimage attacks on compression functions based on the full AES versions. In contrast to most shortcut attacks on AES variants, wedo not need to assume related-keys. Most of our attacks only need a very small part of the codebook and have small memory requirements, and are practically verified...
[7], which was later extended into a preimage attack [21]. However, this attack was very specific to both the characteristic of the underlying finite field, and Tillich and Zémor’s choice of generators. Some general attacks on hash functions over SL2(𝔽q) have been investigated [22, ...
You missed one critical property – It must be easy to compute the hash of a message. Collision-free can be looked upon as two properties (http://tinyurl.com/yo8tes): a) Given M, hard to find M’ such that H(M)=H(M’) —“second-preimage resistant” ...
second preimage attack, etc. Sepcifically, they only analyzed the situation in unkeyed mode of hash functions. Since keyed hash functions are receiving more and more attention, after the genius attacks were found by Wang et al. in dedicated-key hash functions, such as MD4, MD5 and SHA-1...
Dithered hash functions were proposed by Rivest as a method to mitigate second preimage attacks on Merkle-Damgard hash functions. Despite that, second preimage attacks against dithered hash functions were proposed by Andreeva et al. One issue with these second preimage attacks is their huge memory ...
Streebog is a new Russian hash function standard. It follows the HAIFA framework as domain extension algorithm and claims to resist recent generic second-preimage attacks with long messages. However, we demonstrate in this article that the specific instantiation of the HAIFA framework used in Stree...
Rechberger, C., Rijmen, V.: Note on Distinguishing, Forgery and Second Preimage Attacks on HMAC-SHA-1 and a Method to Reduce the Key Entropy of NMAC. Cryptology ePrint Archive, Report, 2006/290 (2006) New Key-Recovery Attacks on HMAC/NMAC-MD4 and NMAC-MD5 251 9. Rechberger, C....
And it is secure against any known cryptographic attacks on hash functions. Keywords: 256-bit Hash Function, FORK-256. 1 Introduction For cryptographic hash function, the following properties are required: – preimage resistance: it is computationally infeasible to find any input which hashes to ...