Silk Road forums

Discussion => Security => Topic started by: mintz00l on February 14, 2012, 06:56 pm

Title: GPG for Linux Users
Post by: mintz00l on February 14, 2012, 06:56 pm
Hi there.

I am currently toying arround with GPG Messages. Since Windows is no option due to paranoia, I am using Linux.
First of all:
Does somebody know a GUI Programm for using GPG in Linux ubuntu based systems?
I currently try to import keys, decrypt messages in the Linux Terminal.

What I have done so far:
1. Created my own 2048RSA Key
2. imported the Key from "Coleman Bomb" from this thread: http://dkn255hz262ypmii.onion/index.php?topic=11496.0 using: "gpg --import [filename with Strg-C; Strg+V key]"

The import of the key seems fine... no error code appeared
Code: [Select]
gpg: key F451C3BF: public key "Coleman Bomb <colemanbomb@tormail.net>" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)

Now I try to decrypt this textmessage, like posted on the help thread:
Quote
-----BEGIN PGP MESSAGE-----
Version: GnuPG v2.0.17 (MingW32)

hQEMA262xeE2pIWAAQf/aBu/est6gXgIGJFF+YpdNypat8KW1LBXawDiENL6YwFe
c/nucx30NwGYECv6BzzyY7ICjk1sDO/bbzt/jitc7uFxfE6/OIXpVwmzv6oG0W2/
4vfmJDiEfIi1HHD3cICNFR6NeSNfDh6JyiomvQZX45B6tnYGLIy2K+B4yP8TuNtS
VUXWxdnSWuSzp1c6BRc2MF4TKUhw5gXO7Cvnz2ILaDmQjgIljFa39yEgtr7xl/Ah
lc2jICpvCI04z1EKic09SfL6nNJmBLeFS03yZmLAeTXVJrg0hOj7L00bXoqQNUgh
vENajsPk26KXjZ0XHjk2NecW3KFEzn14pSBomYAVktJPAU+UX64U0lxGYhA5FamY
xetly/LfusqpWKYMgQ7m0xkmeG9YWTzptYl/6AJQXIxxKDBh3dZnqPt+sMtQOZYr
46a+ZXh688bCfI+Y+8Sw2A==
=EvgN
-----END PGP MESSAGE-----

When I use the "gpg -d [filename with Message]" command I get following error:
Code: [Select]
gpg: encrypted with 2048-bit RSA key, ID 36A48580, created 2012-02-08
      "Coleman Bomb <colemanbomb@tormail.net>"
gpg: decryption failed: secret key not available

I dont understand... I imported the key, didnt I?

I hope someone can help.
Title: Re: GPG for Linux Users
Post by: mintz00l on February 14, 2012, 07:33 pm
Nahh... okay... Maybe I should have read a bit more about gpg en/de-cryption.

So I can only decrypt messages if someones encrypts them with my public key and vice versa... So noone can actually decrypt messages on his own computer since he has not the key I have generated...
So i can use the keys I can find here in the forums only for encrypting messages to this one dedicated user who owns them.

Can someone post a test message for me?
Thanks in advance for your help :)

Code: [Select]
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.11 (GNU/Linux)
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=iU8i
-----END PGP PUBLIC KEY BLOCK-----

Title: Re: GPG for Linux Users
Post by: newuser2 on February 14, 2012, 07:59 pm
I tried various things when getting myself set up. Instead of messing about with the terminal just download Portablepgp from here:

http://sourceforge.net/projects/ppgp/files/ppgp/1.0.6/PortablePGP-1.0.6.zip/download

Just extract from the zip file to wherever you want and run the PortablePGP.sh file.
Title: Re: GPG for Linux Users
Post by: newuser2 on February 14, 2012, 08:05 pm
Here's a test message for you.

-----BEGIN PGP MESSAGE-----
Version: BCPG v1.39
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=GvaL
-----END PGP MESSAGE-----
Title: Re: GPG for Linux Users
Post by: mintz00l on February 14, 2012, 08:11 pm
Hey Thanks for the message - it worked :)
I just installed Kleopatra which is a bit more userfriendly than the Terminal... however I will check out Portablepgp, too.

Thanks again!
Title: Re: GPG for Linux Users
Post by: mintz00l on February 24, 2012, 04:48 pm
Ok... I guess i am stupid somehow.
My Linux crashed so I had to set up a new one.
I used the same username, mail address, RSA,  and password for my own key but somehow it is different now :(
I can not decrypt the message "newuser2" posted here anymore :(

Can someone send me a new one please?
New Key:
Code: [Select]
-----BEGIN PGP PRIVATE KEY BLOCK-----
Version: GnuPG v1.4.11 (GNU/Linux)

lQO+BE9HvEYBCADT60s0HLr67NwXS2gXgDHFJAYQ663aG0g67Ai5Kqf9N8bzdYAE
jXhIF+BFleG6swAmkjNZJrk0tsadItv2IUSQ6rZGwkpGPctEStHBGw7NnhNiCdZ4
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ArrKKo1rwoUCVJn5kCcF5PapoJnUcWLWXsX1ABEBAAH+AwMCZLEp5GI5cU9gJONG
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ZkYzmFaAzfykSD4DJeoO3g==
=O8oR
-----END PGP PRIVATE KEY BLOCK-----

I am unable to import this key to seahorse and test it by my own.

thanks!
Title: Re: GPG for Linux Users
Post by: RichardAlpert on February 24, 2012, 06:12 pm
GNU Privacy Assistant is what you seek for ease of use
Title: Re: GPG for Linux Users
Post by: RichardAlpert on February 24, 2012, 06:14 pm
Ok... I guess i am stupid somehow.
My Linux crashed so I had to set up a new one.
I used the same username, mail address, RSA,  and password for my own key but somehow it is different now :(
I can not decrypt the message "newuser2" posted here anymore :(

Can someone send me a new one please?
New Key:
Code: [Select]
-----BEGIN PGP PRIVATE KEY BLOCK-----
Version: GnuPG v1.4.11 (GNU/Linux)

lQO+BE9HvEYBCADT60s0HLr67NwXS2gXgDHFJAYQ663aG0g67Ai5Kqf9N8bzdYAE
jXhIF+BFleG6swAmkjNZJrk0tsadItv2IUSQ6rZGwkpGPctEStHBGw7NnhNiCdZ4
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tfUPeXKamuWtATBYG9WDC1Bc5cchYymsrNYpGZ9ozf3ZCIyaUqOHGhyXUSyLqecK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=O8oR
-----END PGP PRIVATE KEY BLOCK-----

I am unable to import this key to seahorse and test it by my own.

thanks!


if you made a new key, regardless of the info you used, it's a NEW key. if you didn't export backups before your crash then you're between the rock and a hard place.
Title: Re: GPG for Linux Users
Post by: kmfkewm on February 24, 2012, 06:31 pm
just use linux terminal it makes things much snappier

Quote

This is cross platform. These commands are meant for being typed into a terminal. It really is very easy to use GPG this way and I prefer doing it this way to using any GUI solution.

To clear sign a message, so the message is displayed with a signature, type the following:

echo 'Message to sign here' | gpg --clearsign

hit enter and you will be asked for your passphrase. After providing your passphrase, it will print the signed message

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Message to sign here
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)

iEYEARECAAYFAk7Oi6AACgkQZU8eyBD0KgmoHACffnfJAVsStRRBWUStd/0GeEwY
QWUAnA2IcQeZp7MWgsRKs6jyJO743NLC
=TqKf
-----END PGP SIGNATURE-----

To verify a signature type the following:

gpg --verify | cat -v

hit enter and a blank line is printed. Paste the message you would like to verify directly here, and hit ctrl-d. The signature will now be verified.

To asymmetrically encrypt a message type the following

gpg -e -a | cat -v

hit enter, and you will be asked for the user ID to encrypt the message to. Here you can enter either the E-mail, name or user ID of the recipient. This is why it is important for people to use the same name on their key as they use on forums, so vendors can simply type the name in here. People who use different key names than forum names should seriously just be ignored because they are fucking annoying. Anyway, enter the user information of everyone you want to encrypt your message to, hitting the enter key after each name. You can enter as many user IDs as you like.

after you have entered every nym you would like to encrypt the message to, hit enter again without adding an additional nym. A blank line will be printed. Now type the message you would like to encrypt on this blank line.

When you are done typing the message to encrypt, hit ctrl-d and the ciphertext of your message will be printed

To symmetrically encrypt a message type the following

gpg -c -a | cat -v

type the symmetric password you would like to encrypt the message with. You will need to do this two times to verify the password.

After typing the password twice, a blank line will be printed. Type the message you want to symmetrically encrypt here, followed by hitting ctrl-d. The ciphertext of your message will be printed.

To decrypt a message type the following

gpg -d | cat -v

a blank line is returned. Paste the ciphertext of the message you would like to decrypt. You should immediately be asked to enter your passphrase. After typing your passphrase and hitting enter hit ctrl-d to display the plaintext of the message. If the message was signed with a private key that correlates with a public key you have on your keyring, the message will be authenticated automatically.


important note: you should prepend commands with a space so that you don't save the plaintext of what you sign in your terminal history. Adding a space prior to a terminal command makes it so that it is not saved in the history. Does not work on FreeBSD to prevent being saved to command history (tested on 7.1 and 8.1)"
Title: Re: GPG for Linux Users
Post by: kmfkewm on February 24, 2012, 06:39 pm
also you can use

echo "public-key-goes-here" | gpg --import

for importing public keys

and you can use

gpg --list-keys

to show all the keys you have