Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication.
Questions tagged [pgp]
93 questions
175
votes
3 answers
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?
Luis Alvarado
- 216,643
36
votes
1 answer
How to change the gpg key of the pass password store
One can use pass as a password manager to store passwords.
One thing that is not clear from the manual is whether it is possible to easily change the gpg key that is used. One initializes the password store with a gpg key, but I am wondering what to…
20
votes
3 answers
gpgkeys: key F60F4B3D7FA2AF80 not found on keyserver
How can I fix this issue?
mona@pascal:~$ sudo apt-get update
Ign file: InRelease
Get:1 file: Release.gpg [181 B]
Get:2 file: Release [196 B]
Ign…
Mona Jalal
- 4,695
- 21
- 74
- 102
20
votes
1 answer
How can I adjust the default passphrase caching duration for GPG/PGP/SSH keys?
As far as I know, gnome-keyring-daemon caches passphrases for keys by default until I log out. I would like to set the default to something like "cache for 10 minutes". How can I do that in Ubuntu 12.04 Precise?
Thanks a lot!
Karl Frisk
- 571
17
votes
1 answer
How do I revoke a PGP key on a server?
Here's the situation, I have a PGP key I generated a long time ago and I have lost my private key. However I have a revocation certificate on my USB drive and I would like to revoke the key.
After looking on the internet I found this solution
$ gpg…
Alice Ryhl
- 1,587
15
votes
3 answers
Recover personal PGP key from old home
Many lives ago, I created a GPG key to sign the Ubuntu Code of Conduct on Launchpad. I haven't really used it since. Some time later, I backed up my home and started fresh.
That was all back in 2009. I still have the backup but now I'm starting to…
Oli
- 299,380
13
votes
1 answer
What is the difference between PGP and RSA protocols?
PGP and RSA protocols are the two widely used protocols in a number of servers and email applications for security with public/private key pair.
What is the difference between them? What other popular protocols are available?
rancho
- 4,136
12
votes
1 answer
How to cache pgp passphrase permanently with seahorse (14.04)
I am trying to get seahorse-daemon (formerly seahorse-agent) to cache the passphrase for private pgp keys permanently.
I have used dconf-editor to set gpg-cache-method to always, but the setting is ignored, seahorse prompts for passphrase entry…
fargerio
- 121
12
votes
3 answers
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?
Soroush Rabiei
- 1,012
10
votes
2 answers
How to obtain a S/MIME certificate for e-mail encryption?
There are parties, e.g. enterprises, that uses S/MIME certificates for e-mail encryption. To my understanding Thunderbird has support by default for S/MIME. But I have not found a way to obtain a personal S/MIME certificate to be used on a Ubuntu…
mghg
- 1,057
7
votes
1 answer
How is the authenticity of Ubuntu updates verified?
I couldn't find much info on the security of Ubuntu (and Linux in general) update verification/security.
The connection appears to be plain ftp. but the packages are signed using a private key and the corresponding public key is stored in the system…
Jasper Weiss
- 73
- 4
7
votes
2 answers
How do I verify the PGP downloaded signature of the TrueCrypt setup file with Seahorse?
I have successfully completed steps 1-4 in an attempt to verify the PGP signature of a downloaded TrueCrypt setup file. But I can't figure out how to complete step 5 using Seahorse.
Does anyone know how to verify the downloaded signature using…
sam
- 71
7
votes
1 answer
How do i back up my PGP key
Possible Duplicate:
How to share one pgp-key on multiple machines?
I am about to upgrade my computer to 11.04. But before I do I want to backup my PGP key that I use for signing my ubuntu .deb packages. So that if something goes wrong in the…
trampster
- 11,792
7
votes
1 answer
Is it possible to sign the Ubuntu Code of Conduct, 2.0 in I already signed 1.1?
I am currently trying to sign the Ubuntu CoC, version 2.0, and I have already signed 1.1. When I visit http://launchpad.net/codeofconduct, I am told:
The current version is 2.0, released 2005-04-12
Congratulations, you have already signed the…
nanofarad
- 20,906
7
votes
2 answers
How do I revoke a PGP key?
Note: this is a purely hypothetical situation.
Suppose that I had created a PGP key, pushed it to the Ubuntu keyserver (hkp://keyserver.ubuntu.com), and added it to my Launchpad account. Further suppose that my PGP key was compromised…
Nathan Osman
- 32,495