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Diffstat (limited to 'doc/FAQ')
| -rw-r--r-- | doc/FAQ | 36 |
1 files changed, 34 insertions, 2 deletions
@@ -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 |