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

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1answer
70 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 ...
2
votes
1answer
421 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 ...
0
votes
2answers
423 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:- ...
0
votes
1answer
783 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 ...
12
votes
2answers
5k 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, ...
5
votes
1answer
2k 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?
2
votes
2answers
1k 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: ...
0
votes
3answers
3k 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 ...
1
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3answers
3k views

Best PGP/GPG Encrypt/Decrypt Script

Is there are good default python or simple shell script that I can use to encrypt and decrypt files via PGP/GPG? I would be running this script every 5 minutes.
-1
votes
1answer
757 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 ...
1
vote
1answer
110 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
votes
1answer
2k 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: ...
0
votes
2answers
325 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 ...
5
votes
2answers
2k 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 ...
2
votes
1answer
924 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:~# ...
2
votes
2answers
3k 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 ...
5
votes
1answer
427 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 ...
2
votes
1answer
344 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 ...
9
votes
5answers
27k views

Why does apt-get update tell me to run apt-get update?

So I have this going on: # apt-get update Get:1 http://ftp.us.debian.org etch Release.gpg [1032B] Hit http://ftp.us.debian.org etch Release ...
0
votes
2answers
130 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 ...
5
votes
3answers
264 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 ...
1
vote
1answer
78 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 ...
0
votes
2answers
498 views

Encrypt backups with GPG to multiple tapes

Currently, I use tar to write my backups (ntbackup files) to a tape drive fed by an autoloader. Ex: tar -F /root/advancetape -cvf /dev/st0 *.bkf (/root/advancetape just has the logic to advance to ...
1
vote
1answer
414 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 ...
1
vote
1answer
126 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
1
vote
2answers
461 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 ...
1
vote
1answer
231 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 ...
1
vote
1answer
708 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 ...
2
votes
2answers
1k 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 ...
1
vote
2answers
829 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' ...
0
votes
5answers
661 views

Automatically encrypting incoming email

I have a small website and would like to encrypt incoming email using gpg. Is there a way to force sendmail to check email and encrypt it if its not already encrypted? I'm using GPG on a linux ...
1
vote
2answers
452 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 ...
0
votes
1answer
2k 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 ...
0
votes
1answer
2k 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 ...
2
votes
2answers
740 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 ...
1
vote
1answer
281 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 ...
0
votes
1answer
883 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 ...
6
votes
4answers
2k views

gpg: what do I need to backup?

What are the critical files I need to backup from gpg? I guess my private key would qualify of course... but what else?
0
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1answer
51 views

keysize for Release.gpg?

What is the required keysize for generating Debian Release.gpg files?
6
votes
3answers
217 views

General GnuPG tips

Prompted by the recent vulnerability in SHA-1 and admonitions to begin the process of moving away from that hash function, I'm playing around with GnuPG again. I was just wondering how other folks ...
1
vote
1answer
392 views

The generation method of the random number at the time of the key pair making in gpg

in gpg --key-gen following error occured. Not enough random bytes available. Please do some other work to give the OS a chance to collect more entropy! (Need 300 more bytes) What's wrong?
5
votes
3answers
288 views

GPG/PGP Signatures & Encryption - An Academic Security Question

Digital Signatures Digital signatures take place whereby you apply your private key to a particular message (or the hash of that message in most cases). The recipient then takes your public key - ...
2
votes
9answers
2k views

Output/pipe ntbackup directly to GPG

Currently, we can perform and encrypt a Windows backup with ntbackup and GPG in 2 separate steps in a batch script, as below: ntbackup backup "@selection_file.bks" /f "backup_file.bak" gpg ...