Bozhong Liu, Zheng Gong, Xiaohong Chen, Weidong Qiu, D. Zheng
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Cryptanalysis of Lin et al.'s Efficient Block-Cipher-Based Hash Function
Hash functions are widely used in authentication. In this paper, the security of Lin et al.'s efficient block-cipher-based hash function is reviewed. By using Joux's multicollisions and Kelsey et al.'s expandable message techniques, we find the scheme is vulnerable to collision, preimage and second preimage attacks. Some modifications are recommended to avoid those security flaws in Lin et al.'s hash construction.
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