gpg is the main command line tool of the GNU Privacy Guard (GnuPG), implementing the OpenPGP standard for public key cryptography. It allows encryption, (verification of) signatures and trust models like the web of trust. gpg (and its library gpgme) are the base of many FOSS crypto applications ...

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9 views

Why does mutt hang when running gpg in tmux?

I run mutt in tmux and when I run gpg to sign or encrypt, gpg shows a blank screen where I would expect to type my passphrase. I've straced gpg and it shows that it's hanging waiting on a socket ...
1
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1answer
8 views

scdaemon/gpg doesn't work

I am trying to setup my Nitrokey (GPG usb Smartcard). I got it to work by adding reader-port into the scdaemon config file. I had to do this because my laptop has multiple built in smartcard readers. ...
2
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1answer
29 views

Gentoo Linux GPG encrypts properly a file passed through parameter but throws “Inappropriate ioctl for device” when reading from standard input

I am running Gentoo Hardened with kernel 4.1.7-hardened-r1 and I am trying to encrypt a file using GPG from a shell session opened from SSH and with the DISPLAY variable disabled in order to use ...
3
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1answer
35 views

yum update exits with “Didn't install any keys”

I just installed Centos 6.7 on Virtualbox and ran yum update with this output: warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY Retrieving key from ...
1
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2answers
50 views

How to replace GnuPG stable with GnuPG modern?

First I would like to state that I'm an absolute beginner in the Linux environment. For decades I only used Windows. Since a week or two I'm now using Debian for developing a C++ application with ...
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0answers
18 views

dirmngr does not start with proper home directory unless it is restarted

I am trying to follow these guidelines for gpg best practices: https://help.riseup.net/en/security/message-security/openpgp/best-practices but I am having trouble with dirmngr, which handles all ...
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0answers
52 views

gpg: passwordless decryption works in terminal, but not in tmux based msmtp/mutt (can't open /dev/tty)

first try: (with --no-tty in my msmtp config) (reboot) head -n 1 ~/.gnupg/gpg.conf use-agent gpg agent is started: % systemctl --user status gpg-agent.service gpg-agent.service - GnuPG private ...
3
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1answer
44 views

gpg-agent instead of ssh-agent

I have a Yubikey 4 and I want to use my GPG keys stored on this to authenticate to SSH servers.I want to use GitHub for a start. I have already added my GPG authentication key to GitHub. My problem ...
0
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1answer
53 views

How to verify debian cds with gpg?

I have downloaded Debian installation iso from http://cdimage.debian.org/debian-cd/current/amd64/iso-dvd/. I have also downloaded the MD5SUMS and MD5SUMS.sign . I verified the md5sum of iso matches ...
2
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2answers
73 views

Pass, how to cache passphrase

I'm started to use unix password manager Pass Some passwords are not critical to me and I'm using them very often So it's became very annoying to me to type passphrase to get some password. Is ...
2
votes
3answers
61 views

How do I tell Mutt to ask for a gpg passphrase?

I'm slowly migrating to mutt after years of Thunderbird and stumped by gpg. I have Mutt signing messages by default, but I don't get asked for a passphrase and then the message fails: gpg: can't ...
1
vote
1answer
30 views

how do i make a script to generate a gpg backup saver?

Im making a little backup script that includes the function to encrypt the backup. The script runs automaticly with a cronjob. So the password for gpg is in a File. Its just a textfile. How can i ...
2
votes
1answer
80 views

Files starting with .#lk0xb in ~/.gnupg directory - what are they?

On a Debian Jessie system: $ ls -al ~/.gnupg/ total 58684 drwx------ 2 username username 4096 Nov 28 20:52 . drwxr-xr-x 50 username username 4096 Nov 28 19:33 .. -rw------- 1 username ...
1
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0answers
18 views

Encrypt output of apt-listchanges prior to sending email

Consider the following scenario: apt-get update && apt-get upgrade I am prompted by apt-get wether to accept and install the pending updates. First, since I have apt-listchanges installed, ...
1
vote
1answer
80 views

Finish entering text in GPG

If you call GPG without input, it just says gpg: Go ahead and type your message ... You can enter text and everything, but how do you end the input? I've seen something like this in multiple ...
1
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0answers
87 views

gpg2 decryption timeout/no secret key

I'm having an issue decrypting files with gpg2. I originally encrypted the files with gpg version 1.4. The machine I'm on now has both gpg (1.4) and gpg2. Decryption with gpg works just fine, but ...
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votes
1answer
62 views

Using GPG, encrypt a file with private key

I'm setting up a system to update software on a device and I would like to encrypt the update files using a private key that I have created and then decrypt them with the public key. All of the ...
0
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1answer
432 views

Debian jessie GPG error Clearsigned file isn't valid

This is what I get when running apt-get update: /root$ sudo apt-get update Get:1 http://security.debian.org jessie/updates InRelease [1,507 B] Get:2 http://cdn.debian.net jessie InRelease [1,507 B] ...
6
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3answers
409 views

Is there a way to source an encrypted (GPG) file on-the-fly in a script?

I need a bash script to source a file that is encrypted, as the file being sourced contains sensitive information. I would like the script to prompt for the GPG passphrase and then run, sourcing the ...
1
vote
1answer
72 views

Change pinentry program temporarily with gpg-agent

I use gpg-agent sometimes with no X display or over ssh, so my config file contains: pinentry-program /usr/bin/pinentry-curses This way, the gpg passphrase is requested in curses. That said, in ...
3
votes
1answer
39 views

How can I search gpg-encrypted email with notmuch-mutt?

I'm using mutt, with notmuch-mutt indexing the mail. I have a macro defined in mutt to search multiple mailboxes, using notmuch's integration (as suggested in the man page). macro index <F3> \ ...
2
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1answer
39 views

Encrypt multimedia files with GPG

Is it possible to encrypt pictures and other files like audio etc with GPG? If yes then how to? If not then why not?.
4
votes
1answer
66 views

How can I encrypt with my previous GPG subkey after creating a new one?

I recently generated two new subkeys to put on an external key card. I previously had a master key (usage marked SC) and a single subkey (marked E). This arrangement was worked fine for what I needed ...
1
vote
1answer
101 views

How to make gpg find gpg-agent

On Fedora 22, gpg doesn't find gpg-agent: % gpg-agent --daemon % gpg -vvv --use-agent --no-tty --decrypt file.gpg gpg: using character set `utf-8' :pubkey ...
0
votes
1answer
51 views

python gnupg cannot user keychain keys

I have an issue using the gnupg module in python in Ubuntu 14. My keychain is set up correctly. I can use gpg on the command line to decrypt files with having to enter my passphrase. I have also ...
2
votes
1answer
30 views

How to configure apt to trust CDs

The debian secure apt page states that apt can be configured to always trust files from a CD. However, I can't find documentation of how to do this configuration. It's also worth noting that newer ...
1
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1answer
16 views

Force enigmail to sign with a specific subkey

I have a GPG key with multiple signing subkeys and I want to force enigmail to sign email with a specified subkey. GPG can be forced to sign with a specific subkey by appending the characted "!" after ...
4
votes
0answers
49 views

About pinentry usage along with gpg

Is mandatory to use pinentry with gpg2? Why is pinentry better over legacy prompt?
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0answers
205 views

E: GPG error: http://downloads.sourceforge.net all Release: The following signatures were invalid: NODATA 1 NODATA 2

Following is the output for sudo apt-get update Get:1 http://deb.torproject.org precise Release.gpg [490 B] Get:2 http://deb.torproject.org precise Release [3,709 B] ...
0
votes
1answer
478 views

pass and gpg: No public key

I'm using the pass for quite a long time; but after exporting my key storage and gpg keys to another machine I see following output: $ gpg --list-key /home/shved/.gnupg/pubring.gpg ...
2
votes
0answers
77 views

Enigmail Thunderbird pinentry requests all passwords to all secret keys

I want to read a GPG encrypted email using Thunderbird Enigmail from Account.1@mail.com and Edit > Account Settings > Account.1 > OpenPGP Security has "Use specific OpenPGP key ID" selected. However, ...
1
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2answers
142 views

Enigmail plugin does not recognize anymore my private key

I am using a Debian unstable with Iceweasel (38.2.0esr-1) and the Enigmail plugin (2:1.8.2-3) from the distribution packages. I recently upgraded my system and got a new version of the gnupg2 package ...
1
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0answers
25 views

Installation of R [duplicate]

I want to know about how to install the latest version of R for linux mint First I tried the command: sudo gedit /etc/apt/sources.list Then I typed: sudo apt-key adv --keyserver keys.gnupg.net ...
0
votes
2answers
335 views

trying to install chef-client package via local yum repo

I am trying to make chef-11.16.4-1.el6.x86_64.rpm available to our servers via a local yum repo that we've built. it is not available in RHEL Repos, so i had to manually download and save it in our ...
3
votes
1answer
189 views

How to use tty allocation to run GPG through SSH?

I am trying to encrypt and sign a local file using a distant GPG installation via SSH: pv file | ssh -tt [ssh server] gpg -se -r [receipt key] > file.gpg Using the double t option removes the ...
0
votes
1answer
95 views

Sign a PDF file to verify integrity and validity

I've been asked to distribute electronic certificates (they were originally paper), in a PDF format, but I'd like to sign them with gpg or something similar so users can upload them to my site to ...
0
votes
1answer
175 views

Create yum repo with multiple keys

I need to create a yum repository but I have 5 gpgkeys, the idea is to configure the repo and each package install its own gpgkey automatically. In other words, I need to configure multiple gpgkeys ...
1
vote
1answer
21 views

gpg will not let me change my passphrase

I want to change my gpg passphrase so I do tweedleburg:~/.gnupg # gpg --list-secret-keys /root/.gnupg/secring.gpg ------------------------ sec 1024D/43E855BB 2008-02-03 uid ...
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votes
1answer
36 views

Encryption issue with GPG and PGP [closed]

I want to know whether GPG or PGP are able to encrypt and decrypt a file with special and international characters in it.
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votes
1answer
63 views

Get gpg key info [closed]

I have a GPG public key, and I'd like to know its name. The key can be a file containing a text, or just the text.
0
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1answer
83 views

Redirect all GnuPG output to /dev/null

I'm doing key generation in a sort of batch mode with GnuPG (don't ask why): echo -e 'addkey\n4\n2048\n120d\nsave' | gpg --command-fd 0 \ --edit-key $master_key_id >/dev/null 2>&1 I ...
1
vote
1answer
123 views

GPG keys copied, not working

I have copied my GPG keys from 1 server to another, on the first server everything is working correctly, on the new I get the following: (I have included the output of list-keys and list-secret-keys ...
6
votes
3answers
294 views

Silent GnuPG password request with bash commands

I'm trying to hide the "output" of a gnupg command, but it seems that it is always printed. the command is: echo "thisprogramwørks" | gpg -q --status-fd 1 --no-use-agent --sign --local-user D30BDF86 ...
3
votes
1answer
72 views

How to migrate GPG trust database from one machine to another?

I'm trying to copy my gpg related files over from an old machine to a new one. I've worked out how to copy the keys over: How to import secret gpg key (copied from one machine to another)? but this ...
1
vote
2answers
215 views

Encrypting directories with gpg

I want to use GPG for local encryption only, and after reading the man file, I'm doing the following in order to encrypt a whole directory: I zip the directory with a password "zip -r -e foo foo", ...
2
votes
0answers
14 views

Use GnuPG by default in Evolution

Is there a way to make Evolution default to encrypting messages with GnuPG? It'd be acceptable if Evolution complains and refuses to send unencrypted emails to addresses for which it lacks a gpg ...
2
votes
1answer
82 views

Which keys gpg exports and what is in the keyrings?

I've been making my way through what's on the internet concerning gpg lately. And I must say it's pretty confusing. Particularly, the importing/exporting part. When you generate a key, you basically ...
2
votes
1answer
56 views

Installation of GPG alongside a running one: configure problem?

I already have a production version of GPG from a previous installation. I would like to build and test the last version of GPG without interfering with the production one. I am performing this test ...
2
votes
2answers
245 views

GPG decrypt returns empty file

Im decrypting a file sent by a client using gpg. The file is Obviusly encrypted, and theoretically, using my public key. I have installed both his public key and my private key. So, im running: ...
0
votes
1answer
560 views

GPG error with http://volatile.debian.org : 'The following signatures were invalid: NODATA 1 NODATA 2'

I am currently trying to add a new repository to apt-get but it is not working. I'm adding it like this: deb http://volatile.debian.org/debian-volatile wheezy/volatile non-free Then I get this ...