ssh-keygen is very slow

[Jon-Schneider]

Ssh-keygen hangs on "Generating public/private rsa key pair".

[tristan-k]

I just did the same without any issues.

[Jon-Schneider]

I decided to wait for a while and see what happened. 2048 keys take 2-3 minutes, and 4096 bit keys take 5-6 minutes (vs. instantaneous on Mac). So it does eventually work but the amount of time it takes might be a side effect of the emulation.

[tbodt]

Yeah, things tend to be pretty slow. Fixing that isn't as high priority as making things work at all, of course.

[tbodt]

Closing as duplicate of #129.

[0cyn]

This issue can be negated by using ssh-keygen -b 1024 which takes about 1.5s to run.

Note this weakens security slightly, although the risk here is very debatable.