GNU Privacy Guard (GnuPG or GPG) is OpenPGP compliant FOSS alternative to PGP encryption software.

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Installing keys with .DEB packages silently fails

I'm trying to create a .DEB package which will install a number of certificates and keys onto a system. To do this, i've gone through the standard package creation process, and thrown two files, ...
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38 views

Use content_filter only on relay server (or - how to copy email to another server, but encrypted)

At first - maybe I will write what I'm trying to achieve. I'm using postfix as my main server on my private Linux machine in home. Everything works smoothly and without problems. However I want to ...
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3answers
173 views

gpg-agent says agent exists, but gpg says agent doesn't exist?

I'm struggling with some issues while scripting gpg with bash on a Debian 6.0.6 box. I have a script that does a batch of operations and wants to make sure that a gpg-agent is available before it ...
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3answers
474 views

gpg --gen-key hangs at gaining enough entropy on centos 6

Trying to generate a key for a server. gpg --gen-key We need to generate a lot of random bytes. It is a good idea to perform some other action (type on the keyboard, move the mouse, utilize ...
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1answer
48 views

/usr/bin/gpg md5sum fails; CentOS gpg Package?

I am running CentOS 6.3. I have a tool that monitors md5sum hashes for system binaries, and emails me whenever there is a change. Obviously whenever I run updates to the system via yum, this md5sum ...
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87 views

php gnupg = unable to load warning

End goal: use PHP GnuPG library in my Mediawiki extension I have installed gpgme with dependencies run pecl install gnupg = no errors added extension=gnupg.so to my php.ini : [root@dev-lamp01]# ...
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1answer
41 views

How to view a GPG encrypted file securely? [closed]

When I decrypt / view a gpg file it is: decrypted in the terminal / console and thus gets into history the decryption goes into video memory and into normal memory and into the swap (if not ...
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1answer
375 views

Debian - “WARNING: untrusted versions of the following packages will be installed!”

When i try to install or update any packages I get: Untrusted packages could compromise your system's security. You should only proceed with the installation if you are certain that this is what you ...
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2answers
154 views

Duplicity - how to put passphrase in CMD?

I've tried a number of obvious commands as detailed in Duplicity Man page to do this but doesn't seem to work. Scenario I'm SSH'ing to a machine, then running Duplicity; below is the CMD, of sorts:- ...
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55 views

Are PGP Universal keys compatible with the openPGP standard?

I'm having issues importing a PGP Universal Public key on a system that supports openPGP. Are these two different standards/formats? Should they be compatible?
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1answer
135 views

gnupg ELG vs ELG-E

We recently upgraded the server we use to gpg encrypt files with public key encryption. Old server had gnupg version 1.2.6. On the new server, gnupg version 2.0.18, we imported our gpg keyring from ...
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2answers
1k views

GPG - why am I encrypting with subkey instead of primary key?

When encrypting a file to send to a collaborator, I see this message: gpg: using subkey XXXX instead of primary key YYYY Why would that be? I've noticed that when they send me an encrypted file, ...
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1answer
151 views

Reliable PGP / GnuPG decryption for Mac OSX Mail

I'm developing a web app which emails encrypted data (from a web form) to a client who uses Macs/OSX exclusively in their office. I'd like to know: Is there are any reliable solutions for PGP / GnuPG ...
4
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1answer
86 views

How can I decrypt multiple files in a directory with gpg?

I have a directory with multiple .gpg files, all encrypted with the same passphrase. How can I decrypt them all without entering the passphrase over and over?
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1answer
77 views

Msysgit GPG error during commit signing

I'm getting the following error on Windows with msysgit. Doesn't matter whether or not I am doing it from the command prompt or the BASH bundled with Git: gpg: error loading `iconv.dll': The ...
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2answers
480 views

Different results from GnuPG and OpenSSL when using AES256 encryption

Text: apple Pass: password openssl aes-256-cbc -e -a -in apple.txt Output: U2FsdGVkX1/sqDrVkgk/7dKiCfLW+1/bgvRT/YAopJQ= gpg -c --cipher-algo AES256 apple.txt Output: ...
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1answer
276 views

LAMP webmail with PGP/GPG support?

I've been asked to configure webmail for a company whose business is centred around their intellectual property - which is the rationale why we're using webmail, and not a client based email reader to ...
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1answer
63 views

List all gpg encrypted files that include a given recipient

An employee will be leaving our company, and we have a directory tree containing a number of files, each holding a password for a specific service, and each file is encrypted to those who require it. ...
2
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1answer
581 views

gpg key and what is it for? GPG key retrieval failed error

What is a gpg key and why do i need it? I get this nagging error when i install a fresh centos vps machine: GPG key retrieval failed: [Errno 5] OSError: [Errno 2] No such file or directory: ...
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2answers
411 views

How does changing a GPG encryption key's passphrase work?

I know that I can do (edit: fixed this; I'm interested in gpg NOT openssh) gpg --edit-key ...to change my passphrase for my key, but I'm not sure what this means. If I'm encrypting data on box A ...
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0answers
203 views

How do I import a RSA SSH key into GPG as the _primary_ private key?

I currently have a SSH key that I've used for a while and I'd like to start using GnuPG with a new keyring. However, given that I've used my key for ages, I would like to still use that key in GPG as ...
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2answers
161 views

Debian / libcurl error using gpg

I am trying to register a Key with gpg to upgrade my debian system with aptitude. System is Debian 4.0 32bit. Unfortunately I am getting an error. This is waht I try: gpg --keyserver pgp.mit.edu ...
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1answer
525 views

Duplicity restore reports “Invalid SSH password” when I'm using a private key for connection

I'm testing the restoration of a backup with duplicity 0.6.15. I can login to my backup server just fine using ssh and sftp using the following commands and my private key: ...sftp root@client:~# ...
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1answer
306 views

Duplicity fails on Too many open files?

I'm using Duply on top of Duplicity but apparently it fails (after 10 min on 100% cpu) on gnupg --- Start running command BKP 21:10:58.679 --- NcFTP version is 3.2.2 Reading globbing filelist ...
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1answer
135 views

Mailing list + PGP/GPG support

I would like to create such mailing list where every contributor must sign his/her messages with PGP/GPG, otherwise mailing list software would block unsigned message. All PGP/GPG public keys of ...
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1answer
285 views

Crypto key storage and recovery — best practices?

We have a bunch of SSH, GPG, SSL and other private keys that, obviously: must only be available to the smallest number of people possible can't be "lost" if a hard drive dies or the building burns ...
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2answers
115 views

Need convincing PGP public key needs to be changed

So the situation is thus. We're working with another company and as part of some file distribution processing we have to encrypt some files before they are sent. The company in question sent us ...
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3answers
222 views

PGP: on the web, what if everything was tampered?

I am trying to wrap my head around how Public Key Cryptography can really work in a secure manner. From what I can gather, you go to example.com and download their PGP/GPG Public Key and add it to ...
5
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3answers
2k views

Validating signature trust with gpg?

We would like to use gpg signatures to verify some aspects of our system configuration management tools. Additionally, we would like to use a "trust" model where individual sysadmin keys are signed ...
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1answer
183 views

PGP Encryption Proxy for Mail Server [closed]

I have a friend who is located in a part of the world that makes email encryption prudent for them. While I recommended OpenPGP, my friend thinks that it would have too high of a setup requirement for ...
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1answer
97 views

decrypt gpg file with specific key ?? (OS = WindowsXp)

please how i can decrypt file with specific key in batch file mode ? for example i want to :- decrypt file X.txt with key X.pub
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1answer
143 views

encrypt files by external GPG public key tools?

how i can encrypt files by eternal GPG public key ? for example user A generate public key A.pub and sent to me A.pub and you need from me to encrypt file by a.pub and sent it to you how i can do ...
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1answer
197 views

Encrypting files with different public keys

How can I encrypt three different files, each with its own public key? For instance, there are three companies (X, Y and Z). Each company sends me its own public key. I want to send a file to each ...
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2answers
325 views

What does this gpg warning mean?

When I run my backup script as me, it works fine. When I run it as root, it still works, but I get this warning: gpg: WARNING: unsafe ownership on configuration file `/home/jason/.gnupg/gpg.conf' ...
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2answers
324 views

Can I use the same password for TrueCrypt as what I used when creating my Public Key?

I created and published a Public Key using gpg. I am now creating a TrueCrypt volume and wish to use the same password. Does knowing my public key, in this instance, make my TrueCrypt volume become ...
5
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3answers
2k views

gpg not enough entropy!

SO I've got a ton of processes running in the background to try and get enough entropy but I am still failing. **We need to generate a lot of random bytes. It is a good idea to perform some other ...
2
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2answers
686 views

Validating GPG key signature authenticity

I'm trying to validate the integrity of my httpd-2.2.17.tar.gz image. I followed the steps written in the following pages: http://httpd.apache.org/download.cgi#verify ...
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1answer
678 views

Backups with rsync and gpg

I've found plenty of posts online about this but none that actually answer my question. I'm trying to back up my system in such a way that the files end up encrypted on my backup drive. Here's a ...
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1answer
374 views

GPG doesn't work in crontab

I have the following script: #!/bin/sh -e PWD="supersecretpassword" file="/backup/2do/example.txt" echo before echo $PWD | gpg --passphrase-fd 0 -c $file echo after The scripts works perfectly fine ...
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2answers
394 views

RPM issues after signing JDK 1.6 64-bit

I'm trying to sign the Java JDK 1.6u21 64-bit RPM on CentOS 5.5 for use with Spacewalk and I'm running into problems. It seems to sign okay, but then when I check the signature it seems to be missing ...
3
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1answer
589 views

GPG encrypt and decrypt with ssh-agent

I use ssh regularly and have ssh-agent set up. How can I use ssh keys to gpg-encrypt a file? Edit: It seems that this is impossible. Why? ssh can encrypt traffic, so why not also files?
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1answer
300 views

GPG key server for internal network

I'm looking for some software that works just like the public key servers but will only serve keys for a local network, hence the server needs to not sync with the public network. Can anyone suggest ...
2
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2answers
1k views

How can I use Duplicity with a symmetric key?

I am using duplicity to perform backups on my server. Right now duplicity is encrypting the backup using a GPG public-private key system. I would prefer to encrypt the backup files using just a ...
0
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1answer
513 views

How to install gpg keys from behind a firewall?

I understand that keyservers are using the port 11371 but in many cases you are not allowed to connect to this port and you cannot add There a many cases when you cannot modify the firewall ...
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2answers
440 views

what are the minimal user permissions required to scp files to a remote server?

I want to setup a cron job to transfer data from one host (A) to another (B). My understanding so far is that I will have to create a user on machine B, so that scp can copy the files to a folder in ...
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1answer
183 views

Host GPG / PGP keys online?

Is there any way for me to setup my GPG key online so that they could be used to verify my signature? I mean, I own "thezombie.net", so I might as well host my key there, no? And locally, what do I ...
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1answer
588 views

Importing GPG Key

I have problems importing my GPG-Keys into my new installation of debian. I exportet the private-key a few years ago. Now I am trying to get everything running under a new debian. I tried to do ...
2
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4answers
1k views

user GPG key not able to be used by SUDO

I created a script that runs duplicity to backup files I have on a VPS,and uses a GPG key that I generated as a user. When I try and run this script as SUDO I get: GPGError: GPG Failed, see log ...
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1answer
73 views

Public key read-only storage

We use GnuPG for encrypting data, which we upload to a central storage. The public key is being stored on a web-server, and the encrypting script re-downloads it if it's changed. This was done in ...
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3answers
2k views

Suppress GPG “Reading passphrase from file descriptor 0” message

Simply, how can I make GPG not print that message? Here are the commands I'm using: echo "test input" > test.in echo "test" | gpg -q -c --passphrase-fd 0 --output test.enc --yes --force-mdc ...

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