Comment by krupan

Yes, I understand all that. The original author points out that completely ditching sha-1 will be a huge pain, very costly, and won't meaningfully improve security. You responded by saying we aren't completely ditching sha-1, which seems to lend credence to the argument that sha-1 is still safe enough to use. That's where I'm confused. Having two hashes for each object in a git repo, a sha-1 and a sha256, is not the same as wholesale deleting your rsa-1024 keys and replacing them with rsa-2048. If I'm only looking at the sha-1 and all my tools only look at that, then the sha256 isn't helping me. Is it?