Thanks! Does this attack actually depend on extremely large files in any way? My understanding is that this method can always find fixed-size pre-images for collision attacks, and is unaffected by the pre-image size in a pre-image attack.
That makes sense about newer functions being immune. However, note that both of the cascaded hashes must be immune to prevent this attack (as described in the paper).
That makes sense about newer functions being immune. However, note that both of the cascaded hashes must be immune to prevent this attack (as described in the paper).