I don't think this is possible. While there are ways to use collisions to make a document contain its own hash, they rely on format-specific tricks to insert co

I don't think this is possible. While there are ways to use collisions to make a document contain its own hash, they rely on format-specific tricks to insert collisions between each character of the hash. There's no way I know of to do this with a bare, unformatted MD5 or SHA-1 hash.