Re: Mainkey with many subkeys??

2014-12-14 Thread Tomo Ruby
> I'm confused. You seemed to be making quite a point of it. (-: I'm confused too, that makes two ;) I didn't think about specific expiration times of subkeys. I tried to figure out why everybody has no revoked subkeys at all... > There are others on this list better placed to answer this. As f

Re: Mainkey with many subkeys??

2014-12-13 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Saturday 13 December 2014 at 2:22:17 PM, in , Kristian Fiskerstrand wrote: > But you could always generate a new self-signature > giving it signing capability. As you said in an earlier posting, that requires the use of a hacked GnuPG version

Re: Mainkey with many subkeys??

2014-12-13 Thread Kristian Fiskerstrand
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 12/13/2014 02:41 PM, Peter Lebbing wrote: > -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 > > On 08/12/14 16:37, Kristian Fiskerstrand wrote: >> This key will always be capable of signing by definition > > In what sense is that? It seems GnuPG i

Re: Mainkey with many subkeys??

2014-12-13 Thread Peter Lebbing
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 08/12/14 16:37, Kristian Fiskerstrand wrote: > This key will always be capable of signing by definition In what sense is that? It seems GnuPG is not letting me sign data with a certify-only key: $ gpg2 --edit-key de500b3e [...] pub 2048R/DE500B3E

Re: Mainkey with many subkeys??

2014-12-13 Thread Peter Lebbing
On 13/12/14 12:12, Tomo Ruby wrote: > But what does "meaningful way" mean? That there may be theoretic methods to use signatures to learn information about the private key, but that they are all so impractical that they can be ignored. HTH, Peter. -- I use the GNU Privacy Guard (GnuPG) in comb

Re: Mainkey with many subkeys??

2014-12-12 Thread Peter Lebbing
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/12/14 15:15, Tomo Ruby wrote: > I really know only of this approach: The more encrypted/signed data I > spread over the web, the easier it might be for an attacker to calculate > the secret key. If this was advice directly relating to OpenPGP: D

Re: Mainkey with many subkeys??

2014-12-12 Thread Tomo Ruby
> Recommended by whom and against what threat model? And, really, the > same lifespan for signing keys as for encryption keys? To be honest I didn't think and search about that too much, but that was not the point anyways... > My take on the advice I have most often seen in previous > discussion

Re: Mainkey with many subkeys??

2014-12-11 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Thursday 11 December 2014 at 2:15:26 PM, in , Tomo Ruby wrote: > To be honest I didn't think and search about that too > much, but that was not the point anyways... I'm confused. You seemed to be making quite a point of it. (-: > How do y

Re: Mainkey with many subkeys??

2014-12-09 Thread Doug Barton
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 12/08/2014 10:48 AM, Tomo Ruby wrote: | I know I could just set a new expiration date but most times it's | recommended to use a key for two years at the longest. Why do you think that's true? What threat do you think that using a key for at mos

Re: Mainkey with many subkeys??

2014-12-08 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Monday 8 December 2014 at 3:28:49 PM, in , gnupgpacker wrote: > Some corporate partners are still using older versions > of Symantec's PGP with WinXP, mostly for intranet. > Problems with signing keys are known, sometimes it > works, sometimes

Re: Mainkey with many subkeys??

2014-12-08 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Monday 8 December 2014 at 4:50:57 PM, in , Kristian Fiskerstrand wrote: > It involve using a hacked version of gpg and generating > a new self-signature, which, as I said is not > worthwhile (as it doesn't do anything practically). But > you

Re: Mainkey with many subkeys??

2014-12-08 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Monday 8 December 2014 at 6:48:23 PM, in , Tomo Ruby wrote: > as I wrote in the mail from Sun Dec 7 22:38:03 CET > 2014: I know I could just set a new expiration date but > most times it's recommended to use a key for two years > at the longes

Re: Mainkey with many subkeys??

2014-12-08 Thread Tomo Ruby
Am 08.12.2014 um 00:40 schrieb MFPA: > > > On Sunday 7 December 2014 at 3:04:09 PM, in > , Tomo Ruby wrote: > > >> If I create a main key to certify >> and subkeys for everything else, won't there be dozens >> of subkeys on my main key after years of creating and >> revoking subkeys? > > When

Re: Mainkey with many subkeys??

2014-12-08 Thread Kristian Fiskerstrand
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 12/08/2014 05:18 PM, MFPA wrote: > > > On Monday 8 December 2014 at 3:37:20 PM, in > , Kristian Fiskerstrand > wrote: > > >> Changing this would require a new self-signature limiting the use >> flags, but this is not worthwhile to do. > > I

Re: Mainkey with many subkeys??

2014-12-08 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Monday 8 December 2014 at 3:37:20 PM, in , Kristian Fiskerstrand wrote: > Changing this would require a new > self-signature limiting the use flags, but this is not > worthwhile to do. Is there a method to do this within GnuPG? I have not hea

Re: Mainkey with many subkeys??

2014-12-08 Thread Brian Minton
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 I recently created a key, with a RSA 4096-bit main key (certify only) and 4 subkeys: one DSA for signing, and one ELGamal for encryption, for communicating with people who I don't know are using ECC, and one each of ED25519 and nistp384 for people wh

Re: Mainkey with many subkeys??

2014-12-08 Thread Kristian Fiskerstrand
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 12/08/2014 04:28 PM, gnupgpacker wrote: > Hello, > >> -Original Message- From: Kristian Fiskerstrand Sent: >> Monday, December 08, 2014 12:44 PM >> >>> Main key has options SC. There is an active newer signing key >>> S, so this will be

Re: Mainkey with many subkeys??

2014-12-08 Thread Kristian Fiskerstrand
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 12/08/2014 12:31 AM, MFPA wrote: > Hi > > > On Sunday 7 December 2014 at 10:01:55 PM, in > , Duplicity Mailing List wrote: > > >> Stupid question inbound:- If you make a bunch of subkeys, say, >> one for your phone, one for your desktop and o

Re: Mainkey with many subkeys??

2014-12-08 Thread Kristian Fiskerstrand
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 12/08/2014 10:12 AM, gnupgpacker wrote: > Kristian, I am a little bit confused about your key design ;) Fair enough, > > Main key has options SC. There is an active newer signing key S, so > this will be always used for signing? Correct > >

Re: Mainkey with many subkeys??

2014-12-08 Thread Pete Stephenson
On Mon, Dec 8, 2014 at 10:12 AM, gnupgpacker wrote: > Kristian, > I am a little bit confused about your key design ;) > > Main key has options SC. > There is an active newer signing key S, so this will be always used for > signing? My understanding is that if you have multiple signing subkeys on

Re: Mainkey with many subkeys??

2014-12-08 Thread Tomo Ruby
On 12/07/2014 10:16 PM, Kristian Fiskerstrand wrote: > On 12/07/2014 10:11 PM, Doug Barton wrote: > >> Why do you believe that you will be creating and revoking so many >> subkeys? > > ...expiration of encryption subkeys > and key rotation. Hey, thanks for the answers so far! The most important

RE: Mainkey with many subkeys??

2014-12-08 Thread gnupgpacker
Kristian, I am a little bit confused about your key design ;) Main key has options SC. There is an active newer signing key S, so this will be always used for signing? And there are two active encryption keys E: GPG uses in my opinion only the key generated latest, isn't it? So how to desire whi

Re: Mainkey with many subkeys??

2014-12-07 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Sunday 7 December 2014 at 3:04:09 PM, in , Tomo Ruby wrote: > If I create a main key to certify > and subkeys for everything else, won't there be dozens > of subkeys on my main key after years of creating and > revoking subkeys? When the subk

Re: Mainkey with many subkeys??

2014-12-07 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Hi On Sunday 7 December 2014 at 10:01:55 PM, in , Duplicity Mailing List wrote: > Stupid question inbound:- If you make a bunch of > subkeys, say, one for your phone, one for your desktop > and one for your laptop, how does that work? I would > a

Re: Mainkey with many subkeys??

2014-12-07 Thread Duplicity Mailing List
On 07/12/14 21:16, Kristian Fiskerstrand wrote: > On 12/07/2014 10:11 PM, Doug Barton wrote: >> On 12/7/14 7:04 AM, Tomo Ruby wrote: | I wanted to create new keys >> and came across the following | "problem": If I create a main key >> to certify and subkeys for | everything else, won't there be doz

Re: Mainkey with many subkeys??

2014-12-07 Thread Kristian Fiskerstrand
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 12/07/2014 10:11 PM, Doug Barton wrote: > On 12/7/14 7:04 AM, Tomo Ruby wrote: | I wanted to create new keys > and came across the following | "problem": If I create a main key > to certify and subkeys for | everything else, won't there be dozens

Re: Mainkey with many subkeys??

2014-12-07 Thread Doug Barton
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 12/7/14 7:04 AM, Tomo Ruby wrote: | I wanted to create new keys and came across the following | "problem": If I create a main key to certify and subkeys for | everything else, won't there be dozens of subkeys on my main key | after years of creat

Mainkey with many subkeys??

2014-12-07 Thread Tomo Ruby
Hey, after searching for a long time I finally decided to ask here: I wanted to create new keys and came across the following "problem": If I create a main key to certify and subkeys for everything else, won't there be dozens of subkeys on my main key after years of creating and revoking subkey