Red Hat DIRECTORY SERVER 8.1 - 11-01-2010 Bedienungsanleitung PDF herunterladen (Seite 96)

The matter is even worse when the email message is not stored on the local

machine but on a POP/IMAP server instead. Not only this could potentially

disclose the message to the whole world, but makes more difficult to implement

the feature. Permanently decrypting the email message would translate to

delete the encrypted message on the server and upload a new message

containing the decrypted information from the original mail. This involves a lot

of email access issues – and email access is the email client's duty, not

Enigmail's. Hence, implementing this feature would greatly increase the

complexity in Enigmail, unless Mozilla provides someday an API to manipulate

email data.

In short: permanent message decryption is not supported in Enigmail, and is not

going to be in the near future.

However, you can export the decrypted message as a text file. To do this,

select OpenPGP → Save Decrypted Message from the menu.

11.1.13. Is it possible to use S/MIME and OpenPGP

encryption concurrently?

No, you cannot mix S/MIME and OpenPGP in the same message as the two

standards, and their implementation in Mozilla, interfere with each other. If you

want to use S/MIME you should not enable the Enigmail option Encrypt

messages by default in your account settings (nor the one from S/MIME).

The S/MIME button is hidden by default in SeaMonkey 1.1. You can unhide it

by unchecking the option OpenPGP → Preferences → Advanced → Hide

SMIME buttons/menus.

11.1.14. How do I specify the hash algorithm?

As of version 0.95.0, Enigmail relies by default on GnuPG for selecting the hash

(digest) algorithm. From GnuPG, the hash algorithm can be specified in the file

gpg.conf using the parameter digest-algo hash_algorithm.

If you want to select the hash algorithm from within Enigmail, you can do so by

modifying the preference extensions.enigmail.mimeHashAlgorithm and

assigning to it one of the following values:

0 – automatic selection, let GnuPG choose

1 – SHA1

2 – RIPEMD160

3 – SHA256

4 – SHA384

5 – SHA512

To know more about modifying the preference values manually, also read

Section 9.2.

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Red Hat DIRECTORY SERVER 8.1 - 11-01-2010 Bedienungsanleitung Seite 96