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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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] ...
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20 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 ...
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0answers
16 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, ...
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2answers
27 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 ...
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0answers
23 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 ...
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2answers
47 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 ...
2
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0answers
52 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 ...
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1answer
39 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 ...
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1answer
44 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 ...
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1answer
14 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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1answer
26 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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1answer
23 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.
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1answer
27 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 ...
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1answer
43 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 ...
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2answers
137 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 ...
2
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1answer
21 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 ...
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2answers
92 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", ...
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9 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
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1answer
36 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
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1answer
43 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
74 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: ...
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1answer
225 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 ...
2
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0answers
29 views

Reading GPG passphrase from the physical keyboard in OpenBSD

I'm using Synergy to control an OpenBSD desktop from a Linux computer (think of it like a VNC client/server). That is to say what I type on the keyboard goes through a network connection before it ...
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0answers
120 views

Decrypting with GPG after a “su - different user”

I have cron job running a script in the cron of "USER A" that encrypts many files in a loop using the gpg command below: gpg --batch --cipher-algo AES256 --passphrase "PASSWORDISHERE" -c FILENAME ...
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57 views

How can I have pinentry ask if a password should be remembered?

In this answer, the password prompt for gpg-agent includes options for how long the password should be remembered. However, in my system I get a much simpler prompt, without that option How can ...
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2answers
78 views

Is there a way to edit a password-protected file without having to retype the password all the time?

I want to encrypt a text file using a password and a way to safely edit that file. The problem I am having is that I haven't managed to find a simple way to do that while only requiring the password ...
1
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1answer
29 views

How do I get the Truecrypt CLI installed?

I have a unix machine with truecrypt 7.1a installed. I'm trying to mount a volume to test with the command line but I don't have the truecrypt command installed evidently. Did the command line ...
3
votes
1answer
57 views

Not possible to use batch mode?! FreeBSD gpg 1.4.19

I use a script to decrypt my password for offlineimap, but somehow it's not working anymore ... The file was encrypted with gpg --symmetric password For offlineimap I use this combination. gpg ...
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1answer
90 views

How can I tell gpg that I do not want password caching for a specific program?

I'm using gnupg 2.1.2. Usually it is quite handy when gnupg caches my passwords. But for some sensitive programs I would prefer that gnupg does not cache them with gpg-agent. I searched a good while ...
2
votes
3answers
114 views

gpg key generation on Tails live cd - why so quick?

I just used gpg2 --gen-key to generate a 2048 bit RSA key pair on an OS running on a live cd (Tails). This happened much faster than I expected. When I have done this before on a regular machine it ...
2
votes
1answer
370 views

What are gpg-pubkey* packages?

I compared the packages list reported by RPM and YUM on a CentOS 6 and 7. I noticed the lists were slightly different (same issue with RHEL). See Listing installed packages with yum and rpm mismatch ...
3
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1answer
84 views

Zsh gpg2 autocompletion

I am using zsh with oh-my-zsh on OSX. I installed gnupg2 from homebrew giving me the executable gpg2. Unfortunately zsh auto completion appears to only support gpg (even though that executable is not ...
2
votes
1answer
256 views

How does GPG agent work?

I have a line in my gpg.conf file which says use-agent I understand this refers to gpg-agent which is a daemon. The man page states "gpg-agent is a daemon to manage secret (private) keys independently ...
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94 views

'Pass' password manager - does it require public key?

The 'pass' password manager uses gpg keys. http://www.passwordstore.org/ However, gpg itself can be used for symmetric encryption of files. Does pass only work using public/private keys, or is it ...
1
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1answer
58 views

Simple-cdd keyring addition

I'm looking to add a personal key for an apt repo to a netinstall disc which would require end users to not have to install it. I'm using simple-cdd to generate the build, so wrapping it into a .deb ...
2
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0answers
223 views

How do I combine SSH agent forwarding and gpg-agent?

I have an ssh-agent running on my local machine. I connect to a remote machine via SSH, with agent forwarding enabled. On that remote there is an instance of gpg-agent running. I know that recent ...
3
votes
2answers
145 views

How to quickly generate (insecure) GPG keys?

I'd like to automate generating at least two GPG keys for testing and demonstration purposes in a virtual machine. Because of this context I want to make sure the key generation is fast, ideally not ...
2
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4answers
200 views

File encryption utility without key integrity check (symmetric key)

When encrypting a file with symmetric key, most common utilities (such as gpg, mcrypt, etc) store information in the encrypted message which can be used to verify integrity of the key during ...
9
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1answer
4k views

How to import secret gpg key (copied from one machine to another)?

I'm trying to copy my gpg key from one machine to another. I do: gpg --export ${ID} > public.key gpg --export-secret-key ${ID} > private.key Move files to new machine, and then: gpg ...
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3answers
184 views

creating and sending a self-signed public key using GnuPG in CentOS 7

I know that I can create a GPG keypair from the CentOS 7 terminal by typing gpg --gen-key and following the resulting steps, but how can I make sure that the resulting public key is self-signed? And ...
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2answers
139 views

installing GnuGPG with Thunderbird on CentOS 7

How can I install GnuPG on my CentOS 7 system? I want to use GnuPG alongside Thunderbird and Enigmail to manage pgp keys, as per the instructions in this link. The problem is that the download ...
0
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1answer
26 views

gnupg broken after power outage

Recently I happend to experience a quite unpleasant power outage which caused my system to go down unexpectadly. After power came back the system came back as well and other than a fsck being required ...
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1answer
29 views

Enforcing minimum passphrase length with gpg

When encrypting a file with --symmetric option, gpg asks for the passphrase using the pinentry program (small window). I want it to reject passphrases below a certain length. How can I do this?
6
votes
1answer
321 views

How to renew an expired keypair with gpg

What is the best way to renew a gpg key pair when it got expired and what is the reason for the method? The key pair is already signed by many users and available on public servers. Should the new ...
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votes
1answer
28 views

Is app-crypt/gnupg on Portage or overlays?

I want to use multiple pgp key servers with the sks key server group witch imply gnupg-curl installation for the hkps protocol. But I didn’t find gnupg-curl as an ebuild in Portage or, at least, as a ...
3
votes
1answer
1k views

Get apt's key ids and fingerprints in machine-readable format

I'm trying to patch an issue in puppetlabs-apt to enable the use of key fingerprints as identifiers to ensure that a certain key is present by its 40-digit key fingerprint. I'm having difficulty ...
1
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1answer
116 views

Alias for perl script

So far while surfing web I've discovered nice addition to my gpg password generator and I've decided to adjust my alias with these commands. Here is the code gpg --gen-random 1 20 | perl -ne'print ...
3
votes
1answer
451 views

Connecting SSH and Git to gpg-agent

I'm running a YubiKey NEO with the OpenPGP applet to store my GPG keys on the smart card. I've stopped all other SSH and GPG agents manually by removing their startup entries (On elementary OS Luna, ...
2
votes
1answer
60 views

How to learn encryption type from a mail message?

I use Thunderbid, Enigmail, GnuPG and pinentry. When I receive encrypted message, how I can determine which algorithm is used: for encryption for checksuming (SHA1 or not) for compression
3
votes
2answers
198 views

Encrypt and sign with specific secret key

I have an OpenPGP smart card key (YubiKey NEO) as well as a local secret key installed in my GnuPG keyring. I'd like to encrypt and sign a file with my card's key, not the key in my keyring. How can ...