CERT advisory

[hughes@ah.com (Eric Hughes)]

>The big issue, in my mind, is how the ftpd is going to get the key
>to unlock the *system's* private key... Do you compile it into the
>code?  Should ftpd ask for it when it comes up? 

Since active interception is not nearly so easy as passive listening,
it would be appropriate to use a Diffie-Hellman key exchange in this
situation.  This protocol has no persistent private keys, so the issue
of keeping a private key around securely is not an issue.

Eric