PGP Command Line Decryption --- How to decrypt file?

Posted by whitman6732 on Stack Overflow See other posts from Stack Overflow or by whitman6732
Published on 2010-03-24T01:01:32Z Indexed on 2010/03/24 1:03 UTC
Read the original article Hit count: 543

Filed under:

pgp

|

encryption

|

decrypt

I was sent a public key in order to decrypt a pgp-encrypted file. I imported the key with:

gpg --import publickey.asc

And verified it with

gpg --list-keys

Now, I'm trying to decrypt the file. I put the passphrase in a file called pass.txt and ran this at the command line:

gpg --passphrase-fd ../../pass.txt --decrypt encryptedfile.txt.pgp --output encryptedfile.txt

All it says is: Reading passphrase from file descriptor 0 ...

And doesn't seem to be doing anything else. I can't tell if it's hanging or not. Is it a relatively quick process? The file is large ( about 2 GB ). Is the syntax for it correct?

© Stack Overflow or respective owner

Related posts about pgp

WinSCP putting multiple files on sftp site

as seen on Super User - Search for 'Super User'
WinSCP 5.2 I wanted to put multiple files with a file extension .pgp on an sftp site. When I tested my original command line (see below) and it only placed the first *.pgp alphabetical file (D:\a.csv.pgp) on the sftp site. I tried specifying *.PGP and *.pgp without any changes - only one file (D:\a… >>> More
Installing Disastry's PGP 2.6.3ia multi06 on 12.04 LTS

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
How can I install Disastry's version of PGP 2.6.3ia-multi06 on Ubuntu 12.04 LTS? His site with the source code is here: http://www.spywarewarrior.com/uiuc/disastry/263multi.htm He already compiled a unix version of pgp and it's in the Linux section of his download. How can I either copy and install… >>> More
Is it possible to run pgp 6.5.8 freeware on Windows 7 64 bit machine?

as seen on Super User - Search for 'Super User'
I am trying to get the PGP Command Line -Freeware Version 6.5.8 by Networks Associates working on a Wndows 7 64 bit machine. Does anyone know if it is possible? I installed it in C:\pgp when i run pgp, it keeps telling me that it can't find the pgp.cfg file. My PGPPATH is defined and set to C:\pgp I… >>> More
Need example for BouncyCastle PGP File encryption in C#

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to write an c#.net app to encrypt files using my private key (in ascii format) and any other public key (also in ascii format). The BouncyCastle library looks like the correct thing to use, but I cannot find documentation for C#. Could anyone please give me an example of how to use… >>> More
Easiest way to decrypt PGP-encrypted files from VBA (MS Access)

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to write code that picks up PGP-encrypted files from an FTP location and processes them. The files will be encrypted with my public key (not that I have one yet). Obviously, I need a PGP library that I can use from within Microsoft Access. Can you recommend one that is easy to use? I'm looking… >>> More

Related posts about encryption

SQL SERVER – History of SQL Server Database Encryption

as seen on SQL Authority - Search for 'SQL Authority'
I recently met Michael Coles and Rodeney Landrum the author of one of the kind book Expert SQL Server 2008 Encryption at SQLPASS in Seattle. During the conversation we ended up how Microsoft is evolving encryption technology. The same discussion lead to talking about history of encryption tools in… >>> More
Encryption is hard: AES encryption to Hex

as seen on Stack Overflow - Search for 'Stack Overflow'
So, I've got an app at work that encrypts a string using ColdFusion. ColdFusion's bulit-in encryption helpers make it pretty simple: encrypt('string_to_encrypt','key','AES','HEX') What I'm trying to do is use Ruby to create the same encrypted string as this ColdFusion script is creating. Unfortunately… >>> More
Encryption Product Keys : Public and Private key encryption

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to generate and validate product keys and have been thinking about using a public/private key system. I generate our product keys based on a client name (which could be a variable length string) a 6 digit serial number. It would be good if the product key would be of a manageable length… >>> More
Confused about encryption with public and private keys (which to use for encryption)

as seen on Stack Overflow - Search for 'Stack Overflow'
I am making a licensing system when clients ask my server for a license and I send them a license if they are permitted to have one. On my current system I encrypt the license using a single private key and have the public key embedded into the client application that they use to decrypt the license… >>> More
Software tools to automatically decrypt a file, whose encryption algorithm (and/or encryption keys)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have an idea for encryption that I could program fairly easily to encrypt some local text file. Given that my approach is novel, and does not use any of the industry standard encryption techniques, would I be able to test the strength of my encryption using 'cracker' apps or suchlike? Or do all… >>> More