GNU Privacy Guard (GnuPG or GPG) is a GPL Licensed alternative to the PGP suite of cryptographic software. GnuPG is compliant with RFC 4880, which is the current IETF standards track specification of OpenPGP.

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17
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3answers
6k views

Are GPG and SSH keys interchangable?

I want to generate an RSA key in GPG and use it in SSH login. Is this even possible? If so, how?
37
votes
1answer
2k views

Short, easy to understand explanation of GPG/PGP for nontechnical people?

Does anyone have a link to a good, but short (1-2 paragraphs) explanation of the benefits of using GPG/PGP signing and encryption for Email focused at non-technical readers? That is, why would someone ...
39
votes
6answers
20k views

What is better for GPG keys - RSA or DSA?

ssh-keygen defaults to creating RSA keys, but gpg --gen-key prefers DSA/ElGamal. Which one - RSA or DSA - is better for GPG?
17
votes
8answers
17k views

How to work around blocked outbound hkp port for apt keys

I'm using Ubuntu 9.10, and need to add some apt repositories. Unfortunately, I get messages like this when running sudo apt-get update: W: GPG error: http://ppa.launchpad.net karmic Release: The ...
15
votes
2answers
6k views

One GnuPG/PGP key pair, two emails?

I have two emails I use frequently, for both of which I'd like to use PGP keys generated/managed by GnuPG. I'd like to avoid creating a different key pair for each email, if possible, as that's ...
7
votes
1answer
3k views

How can I send gpg encrypted mail automatically from the linux command line?

How can I send gpg encrypted mail automatically from the linux command line? I'm a little stumped on this one, I've tried using mutt but it doesn't encrypt mail unless it's used interactively. Does ...
6
votes
2answers
6k views

How to use gpg and SSH together? [duplicate]

Possible Duplicate: Are GPG and SSH keys interchangable? How to use gpg and SSH together? I know the basic procedures of 1) using gpg to encrypt and decrypt text files and 2) generating ...
6
votes
1answer
759 views

PGP (GnuPG) - what was the original filename?

John wants to send 1.txt to Paul. He encrypts it. Now the file is named myFile.pgp, and he sends it to Paul. Paul gets the file. How (if possible) can Paul know what the original file name (1.txt) ...
2
votes
1answer
74 views

Making Mutt GPG encrypt emails saved as drafts

How can I, when postponing an email in Mutt, ensure that the email is GPG encrypted before it is saved to the drafts folder? Ideally, this would be based on the PGP setting for the email being ...
6
votes
3answers
651 views

saving and searching encrypted mail

I often send and receive gpg-encrypted mail. At the moment I use thunderbird + enigmail (in linux) to do that. As far as I know there is no way in thunderbird to find all encrypted messages which ...
3
votes
2answers
1k views

automatically encrypt and decrypt emails using gnupg (gpgrelay for unix)

My point of view related to email security is: whenever possible emails should be protected with PGP/GPG while transporting, but it doesn't have sense to store encrypted emails in local mailbox (this ...
3
votes
3answers
2k views

Smartcards for storing gpg/ssh keys (Linux) - what do I need?

I'm interested in storing my SSH keys and gpg keys on a smartcard for added security. However, I'm a bit uncertain on a few points, which are as follows: How many keys can I get on a card? I assume ...
5
votes
1answer
2k views

How do I fix “WARNING: message was not integrity protected” when using GPG symmetrical encryption?

I've encrypted a file using symmetric encryption like this: gpg --symmetric myfile which results in a file myfile.gpg. Alright. Now let's decrypt the file again: gpg -o myfile --decrypt ...