Any way to decrypt hashes set by ssh HashKnownHosts?

[David Rosenstrauch <darose@xxxxxxxxxx>]

Just on a whim, I decided to try out the Debian tool to scan for weak 
keys resulting from the recent openssl security hole.  And lo and 
behold, it found 2 weak keys in my known_hosts file!

Problem is, though, since Arch recently turned on HashKnownHosts by 
default in ssh_config, those 2 lines in the known_hosts file are 
encrypted, and so I don't know which host machines that I've been 
ssh'ing into are affected by the problem.

Anyone know if there's any way to decrypt the hashes created by the 
HashKnownHosts setting?

TIA,

DR