WinFax has public key

[Mike Ingle]

The new WinFax 4.0 appears to have public-key encryption. It can,
according to the manual, send a binary file as a fax, with encryption
and a digital signature on it. Has anyone tried this out? How secure
is it? The manual says nothing about how it works, but the encryption
is the type used in Microsoft At Work. It allows you to create a key
pair and export the public key.

--- Mike