The GNU Privacy Guard (GnuPG) is a free replacement for PGP.

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systemd service asks for gpg password in Unity

I have some systemd-timers to sync my mails via imap. Since I don't want to store my passwords in clear text I use gpg to encrypt and decrypt them. When I am using Unity each time the timers run the ...
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3answers
30 views

Is there any way to decrypt a file create with the following command?

I create a file using: gpg --cipher-algo AES256 --output file -c original_file The system ask me for a paraphrase and I typed in. So the question is: Is there any way to decrypt this file without ...
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1answer
16 views

What keys is GnuPG using for signature verification?

Let assume that I have a list of three key pair on my bash screen when I run the following commands: gpg2 --list-keys and gpg2 --list-secret-keys My question is, when I run the following command ...
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0answers
18 views

apt-get update: “GPG error: Clearsigned file isn't valid, got 'NODATA'”

after running 'sudo apt-get update' I see this in terminal:
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1answer
61 views

How to fix missing gpg key even though it should have been imported?

I am changing the way I install docker on a bunch of machines as pointed out here. It worked fine on one, yet this one behaves strangely. I have imported the key: sudo apt-key adv --keyserver ...
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1answer
35 views

Search and encrpyt single file in gpg encrypted folder

i have a huge gpg encrypted tar-gzip file ~100 GB. But only need a single folder from it. I can list/search the content by doing eg. gpg -d file.tar.gz.gpg|tar -tz |grep "filename"|more This is ...
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1answer
55 views

How to disable apt key checking for private repositories under Ubuntu 14.04?

Under Ubuntu 14.04 I cannot get this to work. Our PCI auditor told us we can not have direct outbound access to the Ubuntu repo's, so I mirror them with reprepro. Likewise, we do not have outbound ...
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62 views

gnome-keyring/pinentry gpg key password saved indefinitely after ubuntu 15.10 upgrade

After upgrading to ubuntu 15.10, the password prompt for gpg keys has changed to a program called pinentry. The pinentry prompt provides a text field for the passphrase, as well as a checkbox for ...
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16 views

How to install mysql 5.7 on 14.04 using apt-get - W: GPG error: [duplicate]

How to I get the keys for installing mysql? I dont know how to add the keys. gpg --recv-keys 5072E1F5 curl -s ??????? | sudo apt-key add - echo 'deb http://repo.mysql.com/apt/ubuntu trusty ...
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0answers
12 views

What to do about GPG error in updates? [duplicate]

command : sudo apt-get updates Get:1 http://dl.google.com stable InRelease 97% [1 InRelease gpgv 262 B] [Waiting for headers] [Waiting for headers] [WaitiSplitting up /var/lib/apt/lists/partial ...
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0answers
16 views

Error downloading package info via synaptic [duplicate]

My update manager was having problems so I changed source repositories via Synaptic but after hitting reload, I get this message: W: GPG error: http://apt.freegeek.org precise Release: The following ...
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55 views

Cannot add GnuPG keys to apt keyring

My error is very similar to that posted here: Cannot solve GPG error however none of those solutions work. I have tried adding the keys using y-ppa-manager (click advanced settings, and select 'Try ...
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1answer
36 views

Is it possible to enable paste in the pin entry in thunderbird?

As Evolution does not support TLS Client Certificate Authentication, I have switched to using Thunderbird. I also use gpg encryption. As my pgp pin is rather long, I store it in a password manager. ...
3
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1answer
61 views

Why did Ubuntu source repository key signature fail with security warning?

Downloading Ubuntu source code gave a security warning: # apt-get source gedit Reading package lists... Done Building dependency tree Reading state information... Done NOTICE: 'gedit' ...
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1answer
94 views

Can libreoffice ppa be trusted if it has “no ultimately trusted keys”?

Updating ppa's for libreoffice gets: sudo apt-add-repository ppa:libreoffice/libreoffice-5-0 ... Press [ENTER] to continue or ctrl-c to cancel adding it ... gpg: key 1378B444: public key ...
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1answer
136 views

GPG error: http://www.geekconnection.org karmic/ InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?) [duplicate]

E: GPG error: http://www.geekconnection.org karmic/ InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?) "I am constantly encountering above error while ...
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1answer
44 views

How to fix gpg not available error?

I am trying to kickstart an Ubtuntu installtion using an existing one. I rsynced the home dir and am now in the process of duplicating the installed packages. Since I have some extra ppa in my setup, ...
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1answer
38 views

Seemingly duplicate trusted GPG keys in /etc/apt/trusted.gpg.d

I was recently dealing with this bug in apt and was trying to figure out which .gpg files I could remove to /etc/apt/trusted.gpg.d to stop the W: GPG error: NO_PUBKEY error I was getting with apt-get ...
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0answers
65 views

“BAD signature” when trying to verify SHA256SUMS

when i try to verify the SHA256 sums of Ubuntu 14.04.3 LTS, i get "BAD signature". I have tried to download SHA256SUMS and SHA256SUMS.gpg on a different network (just to be sure that isn't the ...
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1answer
124 views

Error using GPG encryption in Evolution

After I did fresh install of Ubuntu 15.10 I had to setup GPG encryption with Evolution again and it is not working properly (prior to fresh install it worked fine on Ubuntu 15.04 After I select ...
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3answers
455 views

GPG-Agent / Enigmail stopped working after upgrade to Ubuntu 15.10

Good day everyone, I just upgraded to Ubuntu 15.10 using the Software Updater. After reboot I realized that Enigmail (Version 1.2.8.) in Thunderbird (Version 38.3.0) stopped working. I am unable to ...
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1answer
79 views

Adding new PPA is causing GPG error after apt-get update

Recently I had a lot of GPG errors with the following message W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not ...
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1answer
57 views

Unable to generate unattended OpenPGP keys with GnuPG

I am trying to generate unattended OpenPGP keys without passphrase to automatically deploy secure files on servers. When generated manually all goes fine (using gpg --no-permission-warning --homedir ...
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2answers
231 views

Ubuntu 15.10 changed gpg

I just updated to Ubuntu 15.10 and now I can't do pgp encryptions for my E-mails with the Thunderbird add-on, enigmail. I also tried to encrypt using the Evolution email client, but that doesn't work ...
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0answers
22 views

Cannot install app from Software Center - Requires installation of untrusted packages [duplicate]

So, I've purchased an app from Ubuntu Software Center. The problem is that I cannot install it. Whenever I try to click Install this appears: Requires installation of untrusted packages ...
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0answers
26 views

Seahorse giving permissions for a keyring for all applications at once

After when one of my app asks for a password to open a gnome keyring - some(or all) of my apps(firefox, seahorse ui etc.) gain permission to see everything from that keyring. Is it a bug or it has ...
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0answers
75 views

GPG error on 'sudo apt-get update'

I know there's a lot of questions like this one within this site but I didn't reach the solution yet. This is the output of sudo apt-get update: Ign http://ppa.launchpad.net trusty InRelease Ign ...
3
votes
1answer
141 views

Trying to compile gnupg from source

I downloaded the latest stable tarball from https://www.gnupg.org/download/ and extracted it to a folder on my ubuntu machine. I had to chmod 775 configure in order to be able to run it, then I ran ...
14
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2answers
560 views

How to sign files with Ubuntu command-line tools and my own keys?

I want to sign some Python code files I wrote, because they are plug-in modules for one of my projects. For distributing it, I want that the user can be sure a plug-in is verified and safe (because ...
0
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1answer
289 views

W: GPG error and WARNING: The following packages cannot be authenticated!

I am getting following output of sudo apt-get update and sudo apt-get upgrade command. user@user-VPCCB45FN:~$ sudo apt-get update ...... ...... Ign http://in.archive.ubuntu.com trusty-backports/main ...
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2answers
42 views

GnuPG Private key can be exported without password

I'm using Seahorse on Ubuntu, and I found that using the 'export secret key' option allows me to save an unencrypted *.asc file containing my GnuPG private key, with neither root access nor the ...
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1answer
30 views

How to self-sign OpenPGP key again with Seahorse after changing key preferences?

I changed my preferences in ~/gnupg/gpg.conf: personal-cipher-preferences CAMELLIA256 AES256 TWOFISH CAMELLIA192 AES192 CAMELLIA128 AES personal-digest-preferences SHA512 SHA384 SHA256 RIPEMD160 ...
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0answers
44 views

E: Error de GPG: http://opensource.is - Installing Adagios for Nagios

I'm trying no install Adagios for Nagios under Ubuntu, and I'm facing this error when updating: 73% [37 InRelease gpgv 41,6 kB] [27 Release 28,2 kB/58,5 kB 48%] [Esperando lasSplitting up ...
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1answer
42 views

How to protect PGP key details against be snooped?

I haven't found an answer to the following. Hypothesis: If someone gets physical access to my computer, how I would make sure that they (the ones snooping around) do not find my PGP details; like ...
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1answer
80 views

Opening encrypted disk at boot using crypttab and decrypt_gnupg doesn't work

I have a Volume that is encrypted with a GnuPG pass phrase encrypted key. I can open it, using manual commands, like this: gpg -d key.gpg | cryptsetup luksOpen /dev/sdb2 cryptvolume This works ...
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1answer
49 views

`pass` timeout cached master password

I use a password manager called pass. It asks for the master password upon its first invocation. It appears to cache the master password as to avoid rewriting it. For security reasons, I would like to ...
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votes
1answer
2k views

Error during apt-get update [duplicate]

While running apt-get i get the following error :- W: GPG error: https://dl.bintray.com Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ...
0
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1answer
34 views

Clear the cache of GPG : pub ,uid and sub

I am currently experimenting the key-pair using the command gpg --gen-key after I viewed the list using the command gpg --list-keys it is showing a bunch of pub,ui and sub combination although ...
1
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1answer
122 views

E:The method driver /usr/lib/apt/methods/gpgv could not be found

Anytime I go to update and/or upgrade, apt-get returns the error below: Failed to download repository information E:The method driver /usr/lib/apt/methods/gpgv could not be found. Running: 12.04 ...
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0answers
30 views

GPA Seahorse won't recognize key id's

The list of keys shows that I have the key whose ID is "Key-ID", but every time I try to use the key, GnuPG doesn't recognize it. What is the problem? I've tried everything imaginable. Downloaded ...
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2answers
72 views

Trying to import a friend's public OpenPGP key - but nothing happening and I cannot see the key

Strange issue: A friend of mine sent me his public OpenPGP key. I tried the following: Method 1 Pasted his OpenPGP key block into a .txt file Launched seahorse and clicked on File > Import ...
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2answers
113 views

How to share the public OpenPGP key using GnuPG?

I used GnuPG to generate a key. But looking at the GUI, I cannot tell where my public key is stored. I would like to share it with friends. I clicked on export, this exported a name.asc file, but ...
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1answer
509 views

GNUPG / GPG / S3 / Duplicity gpg: no default secret key: secret key not available

I using S3 / duplicity back up script, save my files. It has been working just fine, until I added a second gpg key. Then all hell broke loose. I tried to deal with two keys, then I delete the second ...
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1answer
343 views

Can't add ppa behind proxy?

First I set up /etc/apt/apt.conf to use my proxy and now I can update with sudo apt-get update. Now I want to add some ppas but can't. I try to add a PPA behind my proxy so I set up http_proxy and ...
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1answer
160 views

How to repair missing GPG public keys for packages

Earlier today I was removing VirtualBox, and when removing its public key, I accidentally instead of putting the key ID, put the fingerprint: sudo apt-key del 7B0F AB3A 13B9 0743 5925 D9C9 5442 2A4B ...
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0answers
98 views

GPG error KEYEXPIRED when using sudo apt-get update (Ubuntu 15.04) [duplicate]

Reading package lists... Done W: GPG error: http://deb.opera.com stable InRelease: The following signatures were invalid: KEYEXPIRED 1435908620 KEYEXPIRED 1435908620 KEYEXPIRED 1435908620 The ...
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1answer
32 views

How do I use GNUPG to create a signed message?

To better explain I used gpg --output encrypt.txt --sign encrypt to create an encrypted file that can be decrypted with my public key, but what I would like to do is to output an encrypted message ...
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0answers
383 views

Broken package ubuntu-keyring (ubuntu 15.04 64 bit)

I've tried to reinstall ubuntu-keyring, because i couldn't fix some GPG errors, but the apt system has failed, Now, i can't even upgrade or install anything. i tried i lot of things such as : sudo ...
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0answers
39 views

trying to import GPG key to launchpad

i am totally new to ubuntu and i want to get involved in development process. I went through the processes of setting up my pc according to the requirement and i am struck at uploading GPG key to the ...
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2answers
198 views

Installing Tor on Ubuntu 14.04

Hey guys I've tried installing Tor on my Ubuntu 14.04 but with no luck. I did just as the instructions in the official Tor website said but a problem appears in the middle. The instruction says: ...