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two new entries regarding list of preferred algos

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Nils Ellmenreich 2001-03-16 11:03:43 +00:00
parent 4e7a8b19dc
commit 6ec80d7bf0
2 changed files with 66 additions and 4 deletions
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36
doc/FAQ
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@ -2,8 +2,8 @@
GNUPG FREQUENTLY ASKED QUESTIONS
Version: 1.0
Last-Modified: Feb 20, 2001
Version: 1.1
Last-Modified: Mar 16, 2001
Maintained-by: Nils Ellmenreich <nils 'at' gnupg.org>
@ -93,6 +93,8 @@ you could search in the mailing list archive.
7.5) How do I interpret some of the informational outputs?
7.6) Are the header lines of a cleartext signature part of the signed
material?
7.7) What is the list of preferred algorithms?
7.8) How do I change the list of preferred algorithms?
8. ACKNOWLEDGEMENTS
@ -833,6 +835,36 @@ material?
algorithm to use.
7.7) What is the list of preferred algorithms?
The list of preferred algorithms is a list of cypher, hash and
compression algorithms stored in the self-signature of a key during
key generation. When you encrypt a document, GnuPG uses this list
(which is then part of a public key) to determine which algorithms
to use. Basically it tells other people what algorithms the
recipient is able to handle and provides an order of preference.
7.8) How do I change the list of preferred algorithms?
Currently the default is hard-wired into the GnuPG source code.
You'll have to change g10/keygen.c and recompile. The
function you'll have to change is keygen_add_std_prefs.
The code is pretty self-explanatory. The constants used to
denote the algorithms are defined in include/cipher.h.
After having done that, generate a new key pair (or a new encryption
subkey) with the modified executable. This new key will have the
modified preferences and can then be used with unmodified executables.
To modify the preferences of an existing key, use a modified
executable (see above) to change the expiry date and then save the
key. The use your original expiry date and save the key again. Now
you've got the prefs changed and can use the key again with your
unmodified executable.
Changing the list of preferences with an unmodified GnuPG
executable (possibly in the edit-key menu) is on the TODO list and
planned for future releases.
8. ACKNOWLEDGEMENTS

34
doc/faq.raw
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@ -13,8 +13,8 @@ The most recent version of the FAQ is available from
[H H1]GNUPG FREQUENTLY ASKED QUESTIONS[H /H1]
Version: 1.0[H p]
Last-Modified: Feb 20, 2001[H p]
Version: 1.1[H p]
Last-Modified: Mar 16, 2001[H p]
Maintained-by: [$maintainer]
@ -810,6 +810,36 @@ material?
algorithm to use.
<Q> What is the list of preferred algorithms?
The list of preferred algorithms is a list of cypher, hash and
compression algorithms stored in the self-signature of a key during
key generation. When you encrypt a document, GnuPG uses this list
(which is then part of a public key) to determine which algorithms
to use. Basically it tells other people what algorithms the
recipient is able to handle and provides an order of preference.
<Q> How do I change the list of preferred algorithms?
Currently the default is hard-wired into the GnuPG source code.
You'll have to change [H pre]g10/keygen.c[H/pre] and recompile. The
function you'll have to change is [H pre]keygen_add_std_prefs[H /pre].
The code is pretty self-explanatory. The constants used to
denote the algorithms are defined in [H pre]include/cipher.h[H /pre].
After having done that, generate a new key pair (or a new encryption
subkey) with the modified executable. This new key will have the
modified preferences and can then be used with unmodified executables.
To modify the preferences of an existing key, use a modified
executable (see above) to change the expiry date and then save the
key. The use your original expiry date and save the key again. Now
you've got the prefs changed and can use the key again with your
unmodified executable.
Changing the list of preferences with an unmodified GnuPG
executable (possibly in the edit-key menu) is on the TODO list and
planned for future releases.
<S> ACKNOWLEDGEMENTS