Welcome to the resource topic for 2013/174
Title:
Cryptanalysis of Some Double-Block-Length Hash Modes of Block Ciphers with n-Bit Block and n-Bit Key
Authors: Deukjo Hong, Daesung Kwon
Abstract:In this paper, we make attacks on DBL (Double-Block-Length) hash modes of block ciphers with n-bit key and n-bit block. Our preimage attack on the hash function of MDC-4 scheme requires the time complexity 2^{3n/2}, which is significantly improved compared to the previous results. Our collision attack on the hash function of MJH scheme has time complexity less than 2^{124} for n = 128. Our preimage attack on the compression function of MJH scheme find a preimage with time complexity of 2^n. It is converted to a preimage attack on the hash function with time complexity of 2^{3n/2+2}. Our preimage attack on the compression function of Mennink’s scheme find a preimage with time complexity of 2^{3n/2}. It is converted to a preimage attack on the hash function with time complexity of 2^{7n/4+1}. These attacks are helpful for understanding the security of the hash modes together with their security proofs.
ePrint: https://eprint.iacr.org/2013/174
See all topics related to this paper.
Feel free to post resources that are related to this paper below.
Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.
For more information, see the rules for Resource Topics .