GPG(or GNU Privacy Guard) is a GPL(GNU Public Licence, see http://www.gnu.org/copyleft/gpl.html) licenced alternative to the PGP set of cryptographic software. For more information, see http://en.wikipedia.org/wiki/GNU_Privacy_Guard.

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gpg-agent: how to limit the passphrase cache retention time

I'm using Thunderbird/Enigmail, and the plugin tells me that the process in charge of the passphrase cache is gpg-agent. The retention time of the passphrase is too long for me (possibly, the entire ...
2
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1answer
18 views

Is Ubuntu's archive signing key available via HTTPS somewhere?

I'm writing a program that needs to download GPG keys for various distributions to do unattended net installs. To do this securely and in an automated way, I need to download the key via HTTPS, which ...
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0answers
20 views

With gpg --verify, how do I distinguish valid signatures and valid signatures from trusted keys programmatically?

I want to write a script that runs gpg --verify to check a signature. The gpg command returns 1 for invalid signatures and 0 for valid ones. But it gives different output for keys that are in my ...
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1answer
150 views

Ubuntu 13.04 update and install issue

I've checked several forums and sites for trying to fix this issue. This issue has been happening for the last three days. I'm a bit of a newbie to Linux but I think I've managed to narrow down where ...
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84 views

apt-get update fails Release.gpg on raring 64bit

When i run apt-get update on my installation of ubuntu 13.04 64bit edition i get the following error sudo apt-get update Err http://ftp.halifax.rwth-aachen.de raring Release.gpg Connection failed ...
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0answers
35 views

Problem with adding google repos

I followed the instructions in http://www.google.com/linuxrepositories/index.html after i paste the code wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add - the ...
2
votes
1answer
235 views

How to add a GPG key to the apt sources keyring?

Ubuntu Doc page says this: It is advisable that you add the Opera GPG key. wget -qO - http://deb.opera.com/archive.key | sudo apt-key add - Where do I add that? I want to take the advice ...
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1answer
190 views

Updating Quantal 12.10 to Raring 13.04 broke seahorse-nautilus

After upgrading from Quantal to Raring the nautilus-seahorse plugin for GPG encryption cease to work. When right clicking in a file the GUI opens and ask to select a key for encryption but the ...
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1answer
74 views

Why is gpg getting upset and how do I stop it?

I recently migrated from one installation of Ubuntu to another, and in the process changed my username. I imported my public/private key pair into gpg, and while decryption (using my private key) ...
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0answers
13 views

Repository for main PKGS appears to be missing in Raring 13.04 [duplicate]

It Appears since installing Raring that whenever I try to install any pkgs I always recieve a pkg not found error. I have checked that all the PPA Repository's are ticked but I am still unable to ...
0
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1answer
39 views

apt authentication failure on self-signed package

I did create a gpg key using "gpg --gen-key", here is the listing: > gpg --list-keys /home/<user>/.gnupg/pubring.gpg -------------------------------- pub 2048R/99EDE0B7 2013-02-05 uid ...
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1answer
54 views

Problem with “apt-get update” command! [duplicate]

I can't update my ubuntu repository list, I try "sudo apt-get update" but I get this error: Get:15 http://dl.google.com stable Release.gpg [1,540 B] ...
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0answers
18 views

Can't update or install software [duplicate]

I'm am brand new to Ubuntu. I cannot update software or download software such as Wine. I get a message that says Failed to download repository information. Check internet connection. But I have an ...
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0answers
82 views

How to make thunderbird work with enigmail + gpg-agent in Ubuntu 12.10

I have a gpg key I would to use to sign my messages. However, whenever I mark a message to be signed I get an error: gpg: « <MYEMAIL@MYORG.ORG> » a été ignoré: la clé secrète n'est pas ...
2
votes
1answer
61 views

Is the key acquired from running gpg --export-secret-key encrypted or cleartext?

How to share one PGP key on multiple machines details how to export your gpg secret key into a file with gpg --export-secret-key -a > secretkey.asc. What the answer does not state is whether the ...
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0answers
79 views

Can I restore GPG password from backup key?

I've forgot my GPG password. But I have a backup of private key. Can I restore my password from backup file of secret key ?
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1answer
852 views

GPG Error, can't update 12.04 [duplicate]

I have seen the following question, however it doesn't solve my problem: Update Manager Error - Authentication Error I can't update my Ubuntu 12.04! I get the following error after running sudo ...
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0answers
32 views

Auto-passphrase in schroot: can't connect to `/run/user/korn/keyring-x30g9r/gpg

when running "debuild -S -sa" to create the source files and sign them in Ubuntu 12.04 I only had to enter my passphrase once and then it is automatically used to unlock my private key on future runs ...
3
votes
1answer
193 views

How to safely download and gpg verify a Debian source package?

I need specific (source or binary) packages from Debian. Can I download the package using apt-get? How can I add the Debian repository to my sources.list so it only gets used on a by case base? ...
0
votes
1answer
75 views

Are there adverse effects from (or a better way than) writing to /run or /dev/shm to protect temporarily unencrypted data?

I am having trouble finding an answer to a question about protecting unencrypted data. I run Ubuntu 12.04. Although I'm not sure that it's relevant, I'll also mention that I use an encrypted home ...
2
votes
1answer
3k views

How to fix GPG in updater

I have asked this question before, but it was closed as a "duplicate." I can assure you that my scenario is original, as it does not refer to third party PPA's. I am having GPG problems with system ...
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0answers
573 views

E: GPG error: http://dl.google.com stable Release: The following signatures were invalid: NODATA 1 NODATA 2 [duplicate]

when i try to update i see this erroIgn http://ppa.launchpad.net quantal InRelease Ign http:*//archive.canonical.com lucid InRelease ...
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1answer
156 views

Automatically sign package files from debuild and upload with dput

I've created a source package for I library I'm working on. I use debuild to build it and then I can successfully upload it with dput. Now I want to set it up so that I can do this automatically ...
1
vote
1answer
75 views

debuild -S in cronjob: how to avoid interactive gpg

I would like to build and submit a package to a launchpad Ubuntu reposiory of mine in a nightly cronjob. To this end, I'll have to debuild -S the package which by default requires human interaction ...
2
votes
2answers
93 views

gpg verification graphical user interface?

Is there a graphical user interface to verify gpg signatures? I got a file and a file.sig. It's clear how to do it in terminal but doing with a right click gui would be more comfortable. I read it's ...
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1answer
437 views

How to Publish GPG Key in Ubuntu 12.10

This link works for Ubuntu 10 https://launchpad.net/+help-registry/openpgp-keys.html#publish How can I do this in Ubuntu 12.10 because its different in Ubuntu 12.10.
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1answer
54 views

How to publish your key used to sign deb packages so you will be able to use your repository from any machine?

I am looking for a solution that would prevent me from seeing things like: W: GPG error: http://updates.example.com lenny Release: The following signatures couldn't be verified because the public ...
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1answer
112 views

restore files from Ubuntu one impossible

My laptop was stolen, it had Ubuntu One installed on it. Now I have a new laptop, again with Ubuntu One. When I access my account I can see lots of files from the old one but I can't restore them in a ...
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0answers
15 views

Problems with Update Manager and public keys [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? I am trying to use sudo apt-get update, but I get the following error message: W: GPG error: "http://dl.google.com" stable ...
5
votes
1answer
92 views

Enigmail - how to encrypt only part of the message?

When I confirmed my OpenPGP key on launchpad I got a mail from them, that was only partially encrypted with my key (only few paragraphs inside the message). Is it possible to encrypt only chosen part ...
2
votes
1answer
77 views

Would it be practical/secure to import my GPG keys into (Open)SSH?

I know a bit about computer security, and well as about the concept of public and private keys. I also know that both GPG and (Open)SSH use the public/private key system. My question is, is there ...
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0answers
57 views

Ubuntu One Windows application only accessing gpg files

I'm on a windows 7 (64) machine right now, I have the Ubuntu One windows application. I'm synced to my online account, the folder I am accessing is... deja-dup\My-desktop When I click 'Sync ...
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votes
1answer
40 views

GnuPG v1.4.10 cant read

I was thinking of "Getting Involved" with Ubuntu and decided to join the Bug Squad. After a few steps of joining, I got an email with a OpenPGP key licenced at Gnu version 1.4.10 and went on their ...
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1answer
1k views

Added key, but dget still shows “gpg: Can't check signature: public key not found”

Trying to download Django source package using dget and the .dsc file from here. Then dget fails to verify the source, because it is missing a public key. $ dget https://launchpad.net/ubuntu... ...
2
votes
1answer
71 views

Does changing my Launchpad GPG key require any changes to my PPAs?

I've lost my GPG key which was used to sign my PPA. So, I generated a new key and deactivated old one in Launchpad. Now, I would like to change the key which is used to sign repository. Currently the ...
5
votes
3answers
535 views

Is it possible to recover a secret key from a GPG public key?

I have lost the GPG keys I use for Launchpad and email encryption, along with my entire ~/.gnupg folder. Can I recover them using the public key?
20
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3answers
2k views

Difference between PGP and GPG

What are the main differences between PGP (Pretty Good Privacy) and GPG (GNU Privacy Guard) in relationship with security in Ubuntu and Launchpad?
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2answers
202 views

Secure your private gpg and ssh keys from other people accessing ssh

There is a person A and person B, other of them has each other ssh public key, so that means they can access each others shell. now they can access each others private ssh and gpg private keys. and ...
0
votes
1answer
148 views

Gpg symmetric decryption reduce the passphrase remember time

i used this command to decrypt my file gpg -d myfile.gpg it asked me for passphrase when i entered it showed me the content of the file now when i run the command again it did not ask me the ...
0
votes
0answers
223 views

running apt-get update shows GPG error [duplicate]

Possible Duplicate: Updates don't install because of “untrusted packages” Duplicate sources.list entry but cannot find the duplicates? I am getting below GPG error on ...
3
votes
3answers
766 views

How to GPG text on Unity?

Once there was a Gnome-applet in Ubuntu (Seahorse?) which helped me with encryption/decryption of PGP text messages. It was able to encrypt or decrypt the clipboard. Since Unity I have no idea, how ...
7
votes
1answer
603 views

What are the GPG signatures

Looking at questions like THIS, THIS and THIS I ask for public knowledge the following questions: What are the GPG Signatures for? What additional level of security do the Signatures add or provide ...
0
votes
1answer
87 views

Pasting text into keyring access prompt

I have quite a few keys I manage with Seahorse, and the passwords to them are quite complex, and kept in a safe method from which I must paste them(they are 64 characters). When I attempt to use these ...
2
votes
2answers
1k views

How to disable the keyring for SSH and GPG?

How to disable the keyring for SSH and GPG ? I would like to keep the keyring for the wifi and other stuff. I'm using Ubuntu 12.04.
3
votes
2answers
191 views

Quickly share error (Can't upload to ppa)

I'm using quickly and I can't seem to upload to my ppa. This is what I get: $ quickly share --ppa swink/ppa Get Launchpad Settings Launchpad connection is ok .........An error has occurred when ...
3
votes
2answers
279 views

How do I import my PPA signing keys from a host into a virtual machine?

Please, give me some help: How can I export PGP keys I used for registration on PPA and then import in virtual machine's Ubuntu? Please, help me.
2
votes
1answer
60 views

Do I GPG-sign my application before or after packaging?

I am almost ready to complete my app, but I am unclear on the sequence of packing a completed an app, and getting it uploaded so users of the software center can find it for installing. Does the ...
5
votes
1answer
251 views

Why can't I gpg-sign the Ubuntu Code of Conduct?

So I've spent quite some time trying to sign this code of conduct and am on the verge of abandoning it. Got right to the sign the txt file stage https://launchpad.net/codeofconduct/1.1/+sign but now ...
0
votes
1answer
34 views

gpg passcode error

I just created my gpg key using developer.ubuntu.com packaging page's documentation and also upload the public key in key server. When i import the key into launchpad it sent me an encrypted message. ...
5
votes
1answer
130 views

Confirming PGP key on Launchpad

I created an account in Launchpad and wanted to upload my PGP key in my account. I followed the instructions in Ubuntu Getting Set-Up Guide and Launchpad guide. Accordingly I received a mail in my ...

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