Type: string
Default: ``default''
This variable determines which PGP version is used for decrypting messages and verifying signatures. If you set this to default, the default defined in $pgp_default_version will be used. Set this to pgp2 (PGP 2.*), pgp5 (PGP 5.*), or gpg (GNU privacy guard) if you want to use a different PGP version for receiving operations.