2 ms·
That's exactly what a chosen prefix attack means. You choose the arbitrary prefixes. Then the garbage is inserted. Then (due to SHA1's Merkle–Damgård constructi
by Thorrez 7y ago
That's exactly what a chosen prefix attack means. You choose the arbitrary prefixes. Then the garbage is inserted. Then (due to SHA1's Merkle–Damgård construction) you append a postfix that's mostly arbitrary (but the same in both files).