sha 512 sigs
Is there an easy way to generate sha 512 signatures for keys in gig tools / keychain access ?
- GPG Keychain Access Version 1.0b7 (1.0b7)
- OS X version: 10.7.4
- GPGTools Installer 25-Jul-2012
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Support Staff 1 Posted by Steve on 03 Aug, 2012 07:15 PM
Hey James,
could you elaborate some more? What are you trying to do? What steps have you tried so far?
Not sure I understand, where you're heading right now.
All the best, steve
2 Posted by James on 03 Aug, 2012 08:51 PM
Hi Steve
I'm basically trying to find a way to replicate the actions described here...
http://www.debian-administration.org/users/dkg/weblog/48
In particular the effect of opening up the ~/.gnupg/gpg.conf file in a text editor and adding the line: "personal-digest-preferences SHA512", which is to cause signatures to begin with "-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512" instead of with "-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1".
I've tried manipulating the algorithm preferences in key-algorighm preferences menus, but it doesn't seem to have any effect. Not sure if this ought to do the trick and I've encountered a bug or if I'm missing something else entirely.
Thanks!
3 Posted by James Harris on 05 Aug, 2012 09:20 AM
Basically trying to replicate steps described here
https://wiki.ubuntu.com/SecurityTeam/GPGMigration to generate a
signature which will appear with "Hash: SHA512" instead of "Hash:
SHA1"...re-ordering the algorithm preferences in keychain access does
not seem to have this effect, although one would assume that it would...
best
Support Staff 4 Posted by Steve on 11 Aug, 2012 05:14 PM
Hey James, what you tried looks good.
Please go to your gpg.conf file and enter the following:
personal-digest-preferences SHA512 SHA384 SHA256 RIPEMD160 SHA1
Does this help?
steve
5 Posted by James Harris on 22 Aug, 2012 11:14 AM
Thanks for this
Trouble is that as far as I can see, in Mac Os Lion, there is no config file...
I've seen some instructions on how to create one, but these seem to assume a level of unix knowledge beyond mine.
Any ways around this or usable instructions would be really appreciate.
Support Staff 6 Posted by Luke Le on 22 Aug, 2012 06:24 PM
Hi James,
follow these steps:
1.) Open Finder.app
2.) Press Cmd + Shift + G
3.) Type ~/.gnupg (it's a hidden folder, that's why you don't see it.) and press enter
4.) You should see your gpg.conf file
7 Posted by James Harris on 22 Aug, 2012 07:26 PM
Thanks so much Luke - that did the trick - thanks both
I did used to know that trick for finding hidden folders but I thought it had gone in snow leopard for some reason!
thanks
James
Support Staff 8 Posted by Steve on 22 Aug, 2012 07:29 PM
Hey James,
no worries. Glad it was that simple to resolve.
All the best,
steve
Steve closed this discussion on 23 Sep, 2012 03:16 PM.