As per suggestion in the spec review.
- Group Reviewers
- rSTAGING497a1b485ba9: Use a single round of SHA256 ont he CHECKDATASIG message.
rABC497a1b485ba9: Use a single round of SHA256 ont he CHECKDATASIG message.
Updated test cases.
As the author of the previous differential D1652, this looks good to me. Test vectors seem to be the same (I just did a diff of the diffs, it is empty regarding the test vectors) and the code as far as I can see is equivalent.
However, one nit, though I don't know what ABC's code policy is right now: I called the message hash 'msghash' in the opcode implementation after Andrew Stone (theZerg) commented that this (or similar) is a more apt name. I think the same applies here.