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3.30 Security

Gnus is able to verify signed messages or decrypt encrypted messages. The formats that are supported are PGP, PGP/MIME and S/MIME, however you need some external programs to get things to work:

  1. To handle PGP messages, you have to install mailcrypt or gpg.el as well as a OpenPGP implementation (such as GnuPG).
  2. To handle S/MIME message, you need to install OpenSSL. OpenSSL 0.9.6 or newer is recommended.

More information on how to set things up can be found in the message manual (see section `Security' in Message Manual).

mm-verify-option
Option of verifying signed parts. never, not verify; always, always verify; known, only verify known protocols. Otherwise, ask user.
mm-decrypt-option
Option of decrypting encrypted parts. never, no decryption; always, always decrypt; known, only decrypt known protocols. Otherwise, ask user.


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