requirements just pick the default. </para> <para> The easiest way to tell
whether an existing key is a v4 key or a v3 (or v2) key is to look at the
fingerprint: Fingerprints of version 4 keys are the SHA-1 hash of some key
requirements just pick the default. </para> <para> The easiest way to tell
whether an existing key is a v4 key or a v3 (or v2) key is to look at the
fingerprint: Fingerprints of version 4 keys are the SHA-1 hash of some key