Improved Preimage Attacks on 4-Round Keccak-224/256
This paper provides an improved preimage attack method on standard 4-round Keccak-224/256. The method is based on the work pioneered by Li and Sun, who design a linear structure of 2-round Keccak-224/256 with 194 degrees of freedom left. By partially linearizing 17 output bits through the last 2 ro...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Ruhr-Universität Bochum
2021-03-01
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| Series: | IACR Transactions on Symmetric Cryptology |
| Subjects: | |
| Online Access: | https://tosc.iacr.org/index.php/ToSC/article/view/8838 |