Selecting an implementation

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3.2 Selecting an implementation

Since PGP has a long history and there are a number of PGP implementations available today, the function which each one has differs considerably. For example, if you are using GnuPG, you know you can select cipher algorithm from 3DES, CAST5, BLOWFISH, and so on, but on the other hand the version 2 of PGP only supports IDEA.

Which implementation is used is controlled by the pgg-scheme variable. If it is nil (the default), the value of the pgg-default-scheme variable will be used instead.

— Variable: pgg-scheme

Force specify the scheme of PGP implementation. The value can be set to gpg, pgp, and pgp5. The default is nil.

— Variable: pgg-default-scheme

The default scheme of PGP implementation. The value should be one of gpg, pgp, and pgp5. The default is gpg.