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A comment on Maybe Skip SHA-3. Parent comment
1) it forces you to allocate more memory (to do the Davies-Mayer construction)
2) it complicates the security analysis because you get collisions (if you do not use a permutation, it means you have an injective construction)
screenshot here: http://i.imgur.com/4xncceB.png
1) it forces you to allocate more memory (to do the Davies-Mayer construction)
2) it complicates the security analysis because you get collisions (if you do not use a permutation, it means you have an injective construction)