PGP (Pretty Good Privacy) is a computer program for encryption and decryption of data that provides cryptographic privacy and authentication for data communication.

learn more… | top users | synonyms

3
votes
1answer
10 views

How to generate the revocation certificate after being made a revoker with GnuPG

I read the "How should GnuPG's `--desig-revoke` command be used?" question/answer, so now I know when to use the --desig-revoke. So, I have two different private keys -- one at work (WORKWORK), ...
1
vote
0answers
25 views

Using OpenSSL to generate encryption key for Outlook users

A private web application needs to receive encrypted email from perhaps 20 known users. How can I use OpenSSL to generate a valid encryption certificate that Outlook users can import and use to ...
2
votes
3answers
29 views

GPG public key created with GnuPG is rejected by MS Outlook 2010, why?

I created a GPG keypair with GnuPG on the CentOS 7 command line and I have exported the public key into a .asc file and successfully used that public key to encrypt emails sent from another email ...
6
votes
2answers
1k views

How long would it take to break a 1024 bit OpenPGP encrypted email?

For WPA, there are calculators to determine the time needed to crack a passphrase, but I have found nothing for OpenPGP. How long would it take to break a 1024 bit OpenPGP encrypted email (depending ...
0
votes
0answers
14 views

Export P12 from GnuPG for PDF signing field

It seems to be possible to export a PGP .asc file to .p12, but I'm unable to use the generated .p12 file for a signature field in a PDF file. Is there a way to export it so it's usable for that field, ...
0
votes
1answer
22 views

Supress password prompt in GPG

Using GnuPG one can symmetrically encrypt a file using: gpg -c --cipher-algo TWOFISH --digest-algo SHA512 secret.txt and decrypt using: gpg -d -o secret.txt secret.txt.gpg After running these ...
0
votes
1answer
24 views

are gpg keyservers synchronised with each other? pgp mit server too?

A question regarding the gpg keyservers: Are the servers found in the list here synchronised with each other?: http://www.gpg4win.org/doc/de/gpg4win-compendium_22.html So uploading a pub key to one ...
0
votes
1answer
24 views

gpg key, submit to keyserver and find again using webbrowser

I am using Kleopatra to create gpg keys (gpg4win). However, I also want to use openkeychain on android. openkeychain uses pgp.mit.edu as keyserver, Kleopatra uses keys.gnupg.net keyserver. How can I ...
0
votes
1answer
35 views

How to generate a gpg4win keypair without passphrase?

I would like to generate a gpg keypair using gpg4win. I am at the point where a personal OpenPGP key pair is generated, but: How can I generate a keypair using gpg4win with no passphrase? The private ...
2
votes
1answer
47 views

Why is the ASCII-armored version of my OpenPGP public key so long?

My OpenPGP key pair was generated by 2048 RSA. The ASCII-armored version of the public key is much longer than most others that I see on the OpenPGP key servers. Mine is several screens worth of ...
2
votes
2answers
27 views

How to replicate GPA's Sign and Compress option on command line in Windows

As the title says, I need to replicate GPA's "Sign and Compress" option on the command line. I'm trying to automate some encryption of files for submission to a bank and the instructions they gave me ...
0
votes
1answer
44 views

Recovering a damaged PGD file

Recently, I got a disk crash and one partition of my HDD was wiped out. I used EaseusDataRecoveryWizard to search for some important files I had. There are 2 PGD files, virtual disks used by PGP ...
1
vote
0answers
22 views

Encrypt Lightning event invite mails with pgp

I use Thunderbirds/Icedoves Lightning add-on to manage my calendar, tasks and notes. When creating an event I can add attendees and send invitations to them, but they won't use their public pgp keys ...
0
votes
1answer
11 views

Recipient ID asked whie using Symmetric encryption with GnuPG

I'm trying to encrypt a file using AES algo and sign it using my private key in GPG. The command I'm using is gpg --encrypt --symmetric --cipher-algo aes256 --armor --sign input-file It asks me for ...
1
vote
1answer
79 views

Use PGP/Mime with Thunderbird and Enigmail

I would like to sign all my mail with my PGP key, and no matter if the recipient uses PGP or not, it should not confuse them. Last week I read a discussion that inline PGP is not good pratice, and I ...
-3
votes
1answer
28 views

PGP encrypted mails look so awful in the gmail-plain-text-editor

I run Firefox on OpenSUSE 13. 1 I want to send mails to my friend and they are encrypted. But if I use Gmail and switch to plain-text then the mails look so awful to me. (see below) And the ...
0
votes
1answer
26 views

How to remove Version Information from Encrypted OpenPGP message in Windows?

I am using Keybase.io with GnuPG on Windows 8.1 via Powershell. I am wondering how to remove the Version line from the encrypted and or signed message. Here is example if what I mean: -----BEGIN PGP ...
0
votes
1answer
33 views

Why does GPG not like this encrypted message?

I had the following encrypted message laying around on my computer from back when I was playing around with GPG (and in this case, Enigmail) -----BEGIN PGP MESSAGE----- Charset: ISO-8859-15 Version: ...
2
votes
1answer
37 views

pgp: using subkey to sign, but should I publicize the fingerprints of both my master key and subkey?

I used gpg to create a key pair. I understand that a master key for signing only and a sub key for encryption only are generated. Following the Debian Wiki, I created a sub key for signing for better ...
0
votes
0answers
28 views

pgp: **key revoked** [NOT verified]

I revoked my key today, and uploaded it to the server. However, When looking at the server web page, I saw it says **key revoked** [NOT verified]. How do I verify this? I am using gpg.
2
votes
1answer
29 views

How do I display the usage flags for my encryption keys in a less hackish way?

I am trying to educate myself on the use of encryption keys and I've been experimenting with this old Linus Torvalds’ key that I found 956EB7BF449FA3AB. I am interested to display the usage flags but ...
0
votes
1answer
35 views

Verify signed file using GPG by passing in signature hosted online rather than stored locally (i.e. in keyring)?

Is it possible to pass the URL of a GnuPG signature when executing a verify query against a signed file? For example, instead of: gpg --verify file.txt Is there a variation of something like: gpg ...
3
votes
1answer
20 views

Is the PGP version number required?

ASCII-armored GnuPG data usually has a Version header: -----BEGIN PGP MESSAGE----- Version: GnuPG v2.0.22 (GNU/Linux) hQIMAxfkjOs8YMF+AQ//e9yWfwKBddUX/1YfghKfF/xJhuirYmAdxhsLaO5Fj0QJ ...
0
votes
1answer
423 views

Unable to send pgp key to keyserver

Trying to follow the steps in http://packaging.ubuntu.com/singlehtml/ to create a deb package for some software... I had to start by generating a GPG key $ gpg --gen-key Then upload the public ...
2
votes
2answers
46 views

How should GnuPG's `--desig-revoke` command be used?

How should the GnuPG command --desig-revoke be used, and in which cases should you use it? According to the manual: --desig-revoke name Generate a designated revocation certificate for a key. ...
0
votes
2answers
21 views

What file extensions should be used on GPG generated output?

In Linux file name extensions are irrelevant, but on a Windows system, many GPG users use GUI applications rather than the command line. They may want to be able to double click on an encrypted file, ...
0
votes
1answer
57 views

Unable to use “transient-key” when generating a batch GPG key

I'm generating a few test keys, but I can't seem to use the %no-protection and %transient-key flags. I get the following message: $ cat dwight | gpg --homedir "dwight-keys" --gen-key --batch gpg: ...
0
votes
1answer
156 views

Can you extend the expiration date of an already expired GPG key?

Lets say I add an expiration date to a GPG/PGP key, then for some reason am unable to extend the expiration date of the key before its time is up. Assuming I still have access to the private key (and ...
1
vote
1answer
39 views

How much information is included with a GPG signature?

Let's say you verify someone's signature with GPG: $ gpg --decrypt statement.txt.sig "I am not a crook." gpg: Signature made 17 Nov 1973 9:31:50 AM CDT using RSA key ID 92861D99 gpg: Good signature ...
0
votes
1answer
90 views

PGP Public Key expiration GPG

I'm in the process of importing a public key from a business partner. We have always use GPG and never had a problem. I’m importing this key using: gpg --import "FileName.asc" gpg: key AC260214: ...
0
votes
1answer
32 views

How to update PGP public key after new uid is added?

I have a PGP keypair to which I just added a new uid. Is the previously exported public key and private key still valid? If I export a new public key with armor, it does look different and longer ...
0
votes
1answer
26 views

Associate specific PGP subkeys with specific UIDs

It seems to me like PGP keys contain a "collection" of UIDs and also contain a collection of subkeys. Moreover, there doesn't seem to be a way to add comments to a subkey. Is there any way for me to ...
1
vote
0answers
31 views

Use RSA keypair for PGP encrypt and decrypt

I use PKI smartcard. I generated public and private key on my smartcard and store keys in it. I want use these keys for PGP encryption and decryption. However, I don't know Can I make this?
0
votes
0answers
54 views

Enigmail stopped working: KEYEXPIRED/SIGEXPIRED

Since a recent update I cant send encrypted mail with thunderbird and the enigmail plugin anymore. Whenever I try to send the mail, and enter the passphrase for my key, I get the following error ...
4
votes
1answer
363 views

How can I fix a corrupted PGP file?

I've encrypted a file with PGP but for "security reasons" I thought it would be good to damage the header and add some extra bytes so that even if someone finds it it won't know for sure it's a PGP ...
2
votes
1answer
59 views

How to generate an OpenPGP Signed Message with GPG?

In RFC 4880, there is section 11.3 which specifies the different formats an OpenPGP Message block can have: 11.3. OpenPGP Messages An OpenPGP message is a packet or sequence of packets that ...
1
vote
1answer
27 views

What is introducing quoted-printables into my PGP-encrypted emails?

I've set up PGP email encryption on two computers using Enigmail and Thunderbird. One is running Mac OS X, and the other is running Arch Linux. Everything functions fine from within Thunderbird on ...
0
votes
0answers
56 views

pgp pass phrase not working in enigmail but does in command line

Hi I've been strugling with this issue of pass phrase and due to the amount of mail I have encrypted, I can't seriously change my pass phrase. Here's the issue : Enigmail don't recognize my pass ...
1
vote
0answers
31 views

How to create new PGP key?

I'm using GNU GPG. I want to replace my old keypair with a new one, and I have a couple of specific questions as I haven't done this before! My keyring currently contains both the new and old ...
0
votes
1answer
224 views

Trying to verify file signature in GPG4win: Not enough information to check signature validity

I've downloaded enigmail for Thunderbird and I'm trying to verify the PGP signature with GPG4win. I imported the public certificate, certified it with my own, downloaded the Open PGP signature, and ...
0
votes
1answer
28 views

PGP: encrypt all parts as one or each separate

When I receive emails in my K9-Mail on Android with APG installed some mails I can press "decrypt" right away inside the email, to read it, and some others, I only get the encrypted message as an ...
2
votes
1answer
176 views

Is it possible to setup Enigmail for Thunderbird, so that signatures are sent as attachments?

In a PGP sign only email, I find that when I use Enigmail, the signature is part of the body of the email and is pretty painful to read on say a browser. I have seen others send signed email where the ...
3
votes
2answers
198 views

Bad sector with PGP Whole Disk Encryption on MacOS X Mountain Lion

I have a MacBook Air from late 2012 that is running Mountain Lion. I also have PGP Whole Disk Encryption 10.2.1 installed and use it. On Monday night, I suddenly encountered a bad sector and the ...
3
votes
1answer
2k views

What is a GPG key ID?

After some google-fu and poking around on here, I'm still not clear on this. I understand the utility of the key block itself, and of a hash of the key, but I don't know why additional information ...
0
votes
1answer
249 views

Errors generating gpg keypair

I posted this originally on stackoverflow, but was told that it was offtopic and this would be the better place to post it, so I am reposting it here and deleting my original topic. I have a rather ...
0
votes
0answers
48 views

What is the default symmetric algorithm for encrypting the secret key in GnuPG 1.4.11?

When generating a GPG key, you are asked for a pass-phrase that will correspond to the private key (or keys to be exact). My question is what is the default crypto algorithm for encrypting your key ...
1
vote
1answer
937 views

How to use PGP private key with K-9 Mail on Android 4.x

Where do I copy which file from my OpenPGP installation on Ubuntu 14.04 on my Android 4.0 device to be able to import it into APG which is the en-/decryption provider I use in the K-9 Mail client?
0
votes
1answer
2k views

Use PGP key with MS Outlook 2010

How do I use a PGP/GNUPG key to encrypt/decrypt emails sent using MS Outlook 2010? I understand the basics of PGP/GNUPG, and have a public/private key setup. I just want to know how to use this with ...
0
votes
1answer
184 views

Will re-formatting a hard drive get rid Of Symantec's PGP disk encryption?

My machine has it's whole disk encrypted with Symantec PGP technology, the one that brings up the grey screen for a password before the operating system boots. Can I reformat the hard drive, and ...
0
votes
0answers
37 views

Setting up PGP on Win7

I got a problem getting PGP to work properly on win7, 64bit. What i want is a automatic encryption, if i have the public key of the recipient and an permanent decryption of received mails. As far as i ...