Generating the Conversation Key

When the user initiates a transaction with a server:

1. The keyserver randomly generates a conversation key.

2. The kernel uses the conversation key to encrypt the client's time stamp (among other things).

3. The keyserver looks up the server's public key in the public-key database (see the publickey(4) man page).

4. The keyserver uses the client's secret key and the server's public key to create a common key.

5. The keyserver encrypts the conversation key with the common key.