We don't know how to push bad artifacts into a Merkle tree by exploiting SHA-1's weaknesses. The thing is, though, we didn't want to be pushed into scrambling f

We don't know how to push bad artifacts into a Merkle tree by exploiting SHA-1's weaknesses. The thing is, though, we didn't want to be pushed into scrambling for a better hash algorithm after some clever bastard works that trick out. :)