[Elucalidavah]

Your title says "PuTTY-Generated" but the OP article says "The problem is not with how the key was originally generated; it doesn't matter whether it came from PuTTYgen or somewhere else. What matters is whether it was ever used with PuTTY or Pageant".

[e79]

Good catch! I wrote the title before I had dug into the matter and forgot to update it. Thanks for pointing that out.

Any k generation and subsequent signature generation are going to be impacted.