Closed guidovranken closed 3 years ago
@samuel-lee-msft, is this fixed with your recent changes?
Yes, @guidovranken, this should be resolved since https://github.com/microsoft/SymCrypt/commit/2829fe90fb846be49c17b503b278691b31e53664 - we now reject attempts to set a Private key of this form (0 modulo the curve's subgroup order) in the SymCryptEckeySetValue
call.
I'll close this issue for now, but do let me know if you have further concerns on this!
Pub X is 1, Pub Y is 0, Sig S is 0.
Found by Cryptofuzz running on OSS-Fuzz.