Listing 1. Sample Signature-Verification Session

mick@kolach:~ > gpgv gpa-0.4.1.tar.gz.sig
gpgv: Signature made Thu 05 Apr 2001 09:21:26 AM CDT
      using DSA key ID 621CC013
gpgv: Can't check signature: public key
      not found
mick@kolach:~ > gpg --keyserver pgp.mit.edu
  --recv-keys 621CC013
gpg: requesting key 621CC013 from pgp.mit.edu ...
gpg: key 621CC013: public key imported
gpg: Total number processed: 1
gpg:               imported: 1
mick@kolach:~ > gpgv --keyring pubring.gpg
  gpa-0.4.1.tar.gz.sig
gpgv: Signature made Thu 05 Apr 2001 09:21:26 AM CDT
      using DSA key ID 621CC013
gpgv: Good signature from "Werner Koch <wk@gnupg.org>"
gpgv: Notation: remark=I have not checked the source.
      It is just the current CVS version