PGP & GPG

116 Chapter 8

tie together to create a chosen level of privacy. After you begin

working with OpenPGP on a daily basis, it won’t take long to

learn when to use the six features in Table 8-1.

Table 8-1: Key Usages

Desired Effect Action

I want anyone who reads this message to

know beyond a doubt that I sent it—I cannot

repudiate it.

Digitally sign the message with your

private key.

I want to verify the identity of the person who

sent a digitally signed message to see whether

the apparent sender is the real sender.

Verify the signature with the sender’s

public key.

I want to send a message that only my

intended recipient can read.

Encrypt the message with ...