Re: WKD documentation (Re: Testing WKD setup?)

2019-07-12 Thread Johannes Zarl-Zierl
Am Freitag, 12. Juli 2019, 10:30:30 CEST schrieb Werner Koch via Gnupg-users: > On Wed, 10 Jul 2019 21:47, johan...@zarl-zierl.at said: > > ...except it isn't installed by default. Will this be part of > > gpg-wks-client? > Ooops. I meant gpg-wks-client. There is no gpg-wks-tool. Thanks for the

Re: WKD documentation (Re: Testing WKD setup?)

2019-07-10 Thread Johannes Zarl-Zierl
Am Mittwoch, 10. Juli 2019, 19:34:41 CEST schrieb Werner Koch: > On Tue, 9 Jul 2019 23:33, johan...@zarl-zierl.at said: > > Now that I have done it once, I think the setup without > > /usr/lib/gnupg/gpg- > > > wks-client isn't that complicated either: > Please use gpg-wks-tool instead; it is much

Re: WKD documentation (Re: Testing WKD setup?)

2019-07-10 Thread Johannes Zarl-Zierl
Hi, On Dienstag, 9. Juli 2019 15:02:26 CEST Bernhard Reiter wrote: > please make suggestions (or help with improving) > https://wiki.gnupg.org/WKD I think the problem with that page is that it is handed out as a starting point to users asking "how can I enable WKD for my key?". To give credit, t

Re: Testing WKD setup?

2019-07-08 Thread Johannes Zarl-Zierl
On Sonntag, 7. Juli 2019 20:48:12 CEST Wolfgang Traylor via Gnupg-users wrote: > > is there a service or similar where I can check if this email address is > > properly WKD-enabled? > https://metacode.biz/openpgp/web-key-directory Thank you! This is so much easier to comprehend than the official

Missing feedback when changing a card pin fails

2018-03-23 Thread Johannes Zarl-Zierl
Hi, I've just spent half an hour scratching my head over an issue that should have been simple: I initialized a new OpenPGP card (v2.1 from Zeitcontrol) and changed the (user) pin. After this, I used the verify command to check whether the pin was working: I put my pin into the pinentry dialo

Re: Is there a foolproof tutorial to start with gpgme?

2016-04-28 Thread Johannes Zarl-Zierl
On Tuesday 26 April 2016 12:44:44 Robert J. Hansen wrote: > Please note: since CMake doesn't have a plugin (yet) to automatically > detect GPGME The usual way is for a library to provide a PackageConfig.cmake file. The old- style FindPackage.cmake "plugins" are very much deprecated and it's hard t

Re: TOFU for GnuPG

2015-10-29 Thread Johannes Zarl-Zierl
Hi Neal, Thanks for the heads-up on this. TOFU seems like a really big feature for everyday use! Out of curiosity: Does the TOFU implementation for gpg already allow for key transition statements / is this planned for some point in the future? Cheers, Johannes

Re: High resource usage when verifying a signature

2015-07-19 Thread Johannes Zarl-Zierl
On Sunday 19 July 2015 01:42:34 Daniel Kahn Gillmor wrote: > I suspect what's taking a long time is an update to the trustdb. one > workaround is to put no-auto-check-trustdb in ~/.gnupg/gpg.conf, and > then have a nightly cronjob that runs "gpg2 --check-trustdb". ...and sure enough "gpg2 --check

High resource usage when verifying a signature

2015-07-18 Thread Johannes Zarl-Zierl
Hi, I've noticed that sometimes gpg2 will take around 1-2 minutes on my desktop PC attempting to verify an email signature. At first, I thought that maybe the increasing prevalence of really big keys would increase the computational complexity, or that the keyserver communication is taking so

Re: Talking about Cryptodevices... which one?

2015-02-06 Thread Johannes Zarl
> >> But I still have the impression about smartcards are supposed to prevent > >> an > >> > >> attacker from stealing the private keys from the cards, right? > > > > Yes, I agree. > > > > Peter. > > But the threat is not fully mitigated if, as you said yourself in > another message on this th

Re: Manually changing smartcard state

2015-01-26 Thread Johannes Zarl
> Is it possible to change the smartcard state after PIN is entered, so it > would be back in the same state as it was when first inserted into the > reader (and would require the PIN to be entered again also for > decryption)? So without removing and re-inserting the card, possibly > using some A

Re: Crypto device where I need to confirm every operation?

2015-01-22 Thread Johannes Zarl
On Thursday 22 January 2015 17:00:44 Felix E. Klee wrote: > However, there > is one attack which I think could be easily prevented: With the card > in the reader, the PIN entered, and Eve having remote access to my > machine, she could sign and decrypt documents. Are you sure? On my setup, the sma

Re: The Facts:

2014-11-15 Thread Johannes Zarl
Hi, On Saturday 15 November 2014 11:52:02 da...@gbenet.com wrote: > Laptop-1 and laptop-2 are a mirror image of each. They contain the same > software. I copied programmes like Thunderbird Firefox from laptop-1 to > laptop-2 without any problems. It seems like the mirroring of laptop-1 to laptop-

Re: Help needed

2014-11-14 Thread Johannes Zarl
On Friday 14 November 2014 17:05:12 da...@gbenet.com wrote: > david@laptop-1:~$ sudo pkg install pinentry-gtk2 > [sudo] password for david: > sudo: pkg: command not found > david@laptop-1:~$ sudo apt-get install pinentry-gtk2 > Reading package lists... Done > Building dependency tree > Reading sta

Re: Fwd: GNU hackers discover HACIENDA government surveillance and give us a way to fight back

2014-08-21 Thread Johannes Zarl
On Thursday 21 August 2014 11:41:40 Robert J. Hansen wrote: > If it escalates to an intrusion, then yes, that's definitely > surveillance in my book. Compiling a collection of publicly available > information is not. "Compiling a collection of publicly available information" is an almost perfect

Re: On the advisability of stronger digests than SHA-1 in OpenPGP certifications

2014-06-28 Thread Johannes Zarl
On Friday 27 June 2014 19:35:12 Robert J. Hansen wrote: > On 6/27/2014 6:31 PM, Johannes Zarl wrote: > > 1. legacy PGP implementations in closed corporate environments > > Be careful about that phrase "legacy." Too often it's used as a slur. > It's more

Re: On the advisability of stronger digests than SHA-1 in OpenPGP certifications

2014-06-28 Thread Johannes Zarl
On Saturday 28 June 2014 08:09:10 Johan Wevers wrote: > On 28-06-2014 0:31, Johannes Zarl wrote: > > The way I see it compatibility between those two groups is a non-issue - > > they simply don't exchange messages. > > Why not? My assumptions were as follows: - Whe

Re: On the advisability of stronger digests than SHA-1 in OpenPGP certifications

2014-06-27 Thread Johannes Zarl
On Friday 27 June 2014 20:51:00 Werner Koch wrote: > On Fri, 27 Jun 2014 19:46, pe...@digitalbrains.com said: > > I however have no clue what you expose yourself to when you still use PGP > > 8.x. It could be possible that these guys take irresponsible risks, I > > don't know. > They will tell you

Re: mascot_p

2014-06-17 Thread Johannes Zarl
> Learn something new every day. Indeed. Thank you both for teaching me about the subtleties of the English language *and* some biology! Johannes ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-user

Re: mascot_p

2014-06-17 Thread Johannes Zarl
Hi, A project mascot is certainly a great idea. In my opinion a mascot and a logo have different purposes and can beautifully complement each other. The logo stands for the product and has to follow certain rules in its design. A mascot, on the other hand stands more for the whole community and

Re: Could not extend expiration date

2014-02-10 Thread Johannes Zarl
Hi, It looks like you use an offline master key and use subkeys for signing and decryption. You can check this by looking at your secret keyring: gpg2 -K sec# 4096R/DEADBEEF 2013-10-25 [expires: 2018-10-24] uid Some Body ssb> 2048R/08152323 2013-10-25 ssb> 2048R/42424242 20

Re: MUA "automatically signs keys"?

2014-01-31 Thread Johannes Zarl
On Friday 31 January 2014 16:09:39 Steve Jones wrote: > Well I was thinking of exporting at first, but it's too fraught with > problems. I would in general like to see more use of persona > signatures as certifying keys as good enough. Essentially I see the > requirements for certifying keys as a

Re: MUA "automatically signs keys"?

2014-01-31 Thread Johannes Zarl
Hi, I've meanwhile seen that others assumed the automatic-persona certification to use exportable signatures. To clarify: As far as I understood the original idea, it would use local signatures only (preferably done with a special purpose local key only used for these signatures). If one woul

Re: MUA "automatically signs keys"?

2014-01-31 Thread Johannes Zarl
On Friday 31 January 2014 01:28:20 MFPA wrote: > , Johannes Zarl wrote: > > If the same email-address is used together with the > > same key for a long time, it effectively ties the > > email-address to a person for all practical concerns. > > After all, you are c

Re: MUA "automatically signs keys"?

2014-01-30 Thread Johannes Zarl
[resent, this time to the mailing list] Hi, On Thursday 30 January 2014 21:09:45 MFPA wrote: > , Steve Jones wrote: > > The advantage you have here though is the web of trust. > > 1 level 1 signature would probably be not enough, but > > 5, 10, 100..? > > If the signatures are made automatically

Re: Setting up shared access to gpg on a UNIX server

2014-01-30 Thread Johannes Zarl
On Thursday 30 January 2014 11:49:47 Peter Lebbing wrote: > If you're trying to achieve by the 744 what I think you're trying to > achieve, namely that users can't change the files, I think you're > mistaken[1]. Look at the following session I just did[2]: > The thing is, you're not allowed to cha

Re: MUA "automatically signs keys"?

2014-01-29 Thread Johannes Zarl
On Wednesday 29 January 2014 10:52:26 Robert J. Hansen wrote: > > Well, it could be semi-automatic. I'm only talking about persona > > certifications, which appear to be understood as verifying that the key > > and the email address are under the control of the same person. > > I suspect the major

Re: time delay unlock private key.

2014-01-23 Thread Johannes Zarl
On Thursday 23 January 2014 15:34:17 Uwe Brauer wrote: > A Long time ago, IBM's proprietary OS, called CMS had a particular > feature for the login: > > It gave you three attempts to login in. If you failed there was a time > delay of 20 min, if you failed again, the time delay was prolonged to >

Re: Reusing signed user ID or attribute

2014-01-17 Thread Johannes Zarl
On Friday 17 January 2014 14:33:25 Daniel Kahn Gillmor wrote: > I think you're conflating revocation of the primary key with revocation > of a user ID. > > Revocation of a primary key is permanent and cannot be overridden. > Revocation of a user ID can be overridden as long as the primary key > (t

Re: Reusing signed user ID or attribute

2014-01-17 Thread Johannes Zarl
On Friday 17 January 2014 13:28:50 Hauke Laging wrote: > IIRC then GnuPG accepts a later self-signature (overriding the > revocation). IMHO that makes most sense. As long as the mainkey isn't > revoked or expired why shouldn't one "change one's mind"? Wouldn't that have huge implications for the s

Re: sign encrypted emails

2014-01-05 Thread Johannes Zarl
On Sunday 05 January 2014 03:10:48 Leo Gaspard wrote: > Well... I, personally, would attach more importance (no more validity, just > importance, like in "listen to me very well" or whatever english people say > to others to get them to listen carefully) to a message signed to an > offline main key

Re: sign encrypted emails

2014-01-04 Thread Johannes Zarl
On Saturday 04 January 2014 16:09:51 Leo Gaspard wrote: > On Fri, Jan 03, 2014 at 07:31:29PM -0500, Daniel Kahn Gillmor wrote: > > In your example, the fact that a message was encrypted makes the > > recipient treat it as though the sender had indicated something specific > > about the message beca

Re: [Announce] GnuPG launches crowdfunding campaign

2013-12-19 Thread Johannes Zarl
On Thursday 19 December 2013 10:09:22 Robert J. Hansen wrote: > > Maybe my English is a little rusty, but what exactly is a "spanking > > server"? > They omitted the word "new". Ah! I should have thought of this. The phrase as a whole is known to me, but without the "new" it was only nonsense to

Re: [Announce] GnuPG launches crowdfunding campaign

2013-12-19 Thread Johannes Zarl
Hi, Maybe my English is a little rusty, but what exactly is a "spanking server"? >From the goteo page: > The world's most trusted data encryption tool gets a new website with > spanking server, platform and design. Johannes ___ Gnupg-users mailing

Re: Renewing expiring key - done correctly?

2013-12-03 Thread Johannes Zarl
On Wednesday 04 December 2013 00:20:10 Hauke Laging wrote: > Am Mi 04.12.2013, 00:00:21 schrieb Johannes Zarl: > > Sorry for asking a possibly stupid question, but how exactly does a > > shorter > > validity period get you more security? > > This is the security a

Re: Renewing expiring key - done correctly?

2013-12-03 Thread Johannes Zarl
On Tuesday 03 December 2013 23:44:20 Hauke Laging wrote: > Expiration serves two purposes: > 1) Passively revoke a key if you have lost access to the secret mainkey > (i.e. to the key itself or to its passphrase). > 2) Force your communication partners (people are lazy) to update your > certificate

Re: Signing keys on a low-entropy system

2013-11-12 Thread Johannes Zarl
Thank you both for your detailed answers - they were really helpful for me! Johannes On Friday 08 November 2013 19:01:34 Peter Lebbing wrote: > On 08/11/13 18:07, Tapio Sokura wrote: > Nope, OpenPGP uses EMSA-PKCS1-v1_5, which is completely deterministic. > > I /think/ GnuPG doesn't need any r

Re: Signing keys on a low-entropy system

2013-11-08 Thread Johannes Zarl
> On Fri, 08 Nov 2013 00:11:38 +0100 Johannes Zarl > > wrote: > > I'm currently thinking about using a raspberry pi as a non-networked > > stand- alone system for signing keys. Since I haven't heard anything > > to the contrary, I'm pretty sure that entr

Signing keys on a low-entropy system

2013-11-07 Thread Johannes Zarl
Hi, I'm currently thinking about using a raspberry pi as a non-networked stand- alone system for signing keys. Since I haven't heard anything to the contrary, I'm pretty sure that entropy is relatively scarce on the pi. How is GnuPG affected by such a low-entropy system? Will operations just tak

Re: Quotes from GPG users

2013-11-02 Thread Johannes Zarl
On Wednesday 30 October 2013 11:58:56 Sam Tuke wrote: > I'll collect them and pick the best for use now and in future. > > Stimuli: > You trust GPG with what? > It's the only app that does what for you / your business? > Without it you couldn't do what? I wonder why not more respondents have writ

Re: make gpg-agent forget the PIN

2013-11-02 Thread Johannes Zarl
Thanks! That was exactly what I was looking for. Johannes On Friday 01 November 2013 20:17:41 Peter Lebbing wrote: > Hi Johannes, > > > Is there any way to explicitly tell gpg-agent to forget the pin as well? > > Based on a post once made by Werner, I have this script: > > ---8<-

make gpg-agent forget the PIN

2013-11-01 Thread Johannes Zarl
Hi, I'm trying to get gpg-agent to automatically forget my credentials as soon as I leave the PC/the screen is locked. So far, I only got it half working: When I send a SIGHUP to the gpg-agent, it correctly forgets cached passphrases. The cached PIN of my OpenPGP card, however remains available

Re: Problems with keypad on Cherry ST-2000U card reader

2013-10-09 Thread Johannes Zarl
I know what part is unclear. If it's the latter: What is the right place to ask questions regarding card reader support in gpg? Kind regards, Johannes P.S.: I did try again with gpg version 2.0.22, but the results are the same. On Friday 27 September 2013 13:36:44 Johannes Zarl wrote: >

Problems with keypad on Cherry ST-2000U card reader

2013-09-27 Thread Johannes Zarl
Hi, I recently got my fellowship card and now try to get a working setup. My first tries with a ReinerSCT cyberjack that I had lying around did not get me anywhere, so I bought a Cherry ST-2000U which looked like it should work with the internal CCID driver. The reader is "mostly" working, i.e.