[Questions] Example of an IMAP keypair message, Storage of passwords

[mikegioia]

1. I think I have a good idea of what the packets should look like in the IMAP message containing the public/private keypairs, but I was wondering if you could provide an example just as a reference?
2. I'm building an application that would sync keys through IMAP but I'm struggling to figure out how to store these two passwords to encrypt the keypairs. The user supplied part is simple, as I can hash it and save it in the database. Can the 24 character alphanumeric password just be stored in plaintext in the database? If it isn't stored in plaintext, how can it be used to encrypt/decrypt the IMAP message?

Thanks very much, this is a great project :D