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by adrian_b
902 days ago
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A chosen-prefix (i.e. a demonstration how to modify a given legal document to obtain two different documents that have the same hash) SHA-1 collision has already been computed: "We have successfully run the computation during two months last summer, using 900 GPUs (Nvidia GTX 1060)." Such resources can be easily rented from a cloud. So for anyone willing to spend up to 100k USD, it is trivial to find SHA-1 collisions. https://sha-mbles.github.io/ |
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