Post #1544722

@agitatra @lispi314 @indigoparadox interesting thought – hadn't occurred to me! Off the top of my head I'd guess the number of P521 users is _relatively_ small. As another commenter pointed out, it's never been PuTTY's default; and generally the NIST curves seem to have mostly gone out of fashion these days, in favour of Ed25519. So I doubt this was _all_ the xz backdoor actors were after. It doesn't seem worth all the effort by itself. But it could have been one thing on their shopping list.