1
vote
2answers
89 views

Encrypt file using PGP/GPG having multiple recipients [duplicate]

I have used GPG for some time and know a little about the inner workings. For example I know how to encrypt a file with your public key so only you can open it with your private key, neat. But ...
0
votes
0answers
15 views

stdout error using cross-compiled gpg

I compiled gnupg(ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-1.4.16.tar.bz2) for an armv5l processor using the ulibc cross compiler ...
0
votes
1answer
16 views

GPG: Different trust “categories”

I'm getting started with GPG and sent my key to the PGP Global Directory. When I verified my email address, they signed my key, and I've got a question. In one case, I might not really care about ...
0
votes
1answer
70 views

GnuPG — encrypt already signed message

I'm working on a program that encrypts email after receiving so that at least it can be stored encrypted on the receiving mail server (although still would be transmitted in plain text). While it is ...
1
vote
2answers
175 views

How to restrict the usage flags for primary key-pairs in OpenPGP certificates?

More than one time I read recommendations to use the primary key-pair in my OpenPGP certificate only to sign sub-key-pairs and not for general daily use (even to keep the private key stored on a ...
0
votes
2answers
193 views

Encrypting a document with multiple keys, and making people accountable for those keys

Hypothetical here. You have a highly sensitive file that you don't want to become public ever, other people also don't want it to be public. To reduce likelihood of being murdered you publish an ...
4
votes
1answer
728 views

Why does GPG/PGP by default use different keys for signing/encryption?

If you create a new GPG key, you'll by default get a signing-only master key pair and an encryption-only sub-key pair. pub 2048R/XXXXXXXX created: 2013-02-09 expires: 2014-02-09 usage: SC sec ...
0
votes
1answer
157 views

How to show (for copy&paste) a secret GPG/PGP key without creating a file

I need to access my secret GPG/PGP key to copy/paste it into another application. How do I show my secret key without generating too much traces of it? I only know of the export command to gpg (or ...
0
votes
0answers
42 views

Scan for Unencrypted Data

I need a program that scans for unencrypted files. The files are encrypted with PGP, GPG, and WinZipAES256, so the program needs to be able to recognize these formats as encrypted. Since I need to ...
4
votes
1answer
421 views

Un-revoke PGP key

Whilst playing with GPG (and trying to figure out a safe way to store my revocation cert so nobody else could use it), I accidentally revoked my PGP key. The revocation was only local; not sent to a ...
0
votes
2answers
405 views

Verifying files with GPG, without a .sig or .asc file, and with only a key id and fingerprint?

From my limited knowledge of PGP/GPG, one must have 2 things to verify a file: The file's "signature" (essentially a hash of the file encrypted with the trusted entity's private key; normally ...
2
votes
3answers
203 views

Is it possible to associate a secondary email address with an existing *public* key?

For example, if I have a friend's public key that's associated with, say, email address [email protected], but I want to send him a message at [email protected], is there a sensible way to do this? Is ...
1
vote
2answers
157 views

How to prevent an openPGP key from being uploaded to a keyserver?

Is there flag or something in an openPGP key that can be used to communicate my wish that this key should never be uploaded to a keyserver? If not, can I create a key that is broken in such a way ...
1
vote
3answers
452 views

Is it possible using symmetric encryption to encrypt a file with two different keys?

GPG/PGP and other public key encryptions allow encrypting to several recipients using their public keys. Is it possible to use only symmetric encryption to do that same? In other words is it possible ...
6
votes
1answer
761 views

PGP (GnuPG) - what was the original filename?

John wants to send 1.txt to Paul. He encrypts it. Now the file is named myFile.pgp, and he sends it to Paul. Paul gets the file. How (if possible) can Paul know what the original file name (1.txt) ...
1
vote
1answer
633 views

gpg: import failure key xxxxxxxx: no valid user IDs

i am getting this error while importing a public key on gpg (GnuPG) 1.4.2 gpg: armor header: Version: GnuPG v2.0.14 (GNU/Linux) gpg: pub xxxxx/xxxxxxxx 2012-05-25 abcd xyz <[email protected]> ...
0
votes
1answer
69 views

Sign PGP key to which I added identity once again (i.e. also sign new identities)

I am using the Key Management dialog of Enigmail (in Thunderbird) to manage my keys, as it's more convenient than command line, but also more stable than the GnuPG alternative (Kleopatra). So now I ...
2
votes
2answers
284 views

how to verify the trust path to a gpg key?

I want to check whether the gpg key used by Julien Danjou for his emacs snapshot repository can be trusted. There are many trust paths from my key to Juliens key. But I can't believe that there ...
0
votes
1answer
201 views

How to embed an ASCII logo into an ASCII-armored RSA key?

The cryptoparty site publishes an RSA key with an ASCII art logo embedded in it. Is there a way to put arbitrary characters in an ASCII-armored RSA key? From https://github.com/cryptoparty/handbook ...
17
votes
1answer
3k views

How to manage GPG keys across multiple systems?

I'm new to using GnuPG and trying to understand how best to use it. I've reviewed Short, easy to understand explanation of GPG/PGP for nontechnical people?, but most guides explain PGP with a ...
3
votes
1answer
276 views

How can I use a PGP key on Windows to sign/verify and encrypt/decrypt documents?

Occasionally I need to encrypt a file, cryptographically sign something, etc. GNU PG and PGP are good tools for this, but how can I get them working on Windows? When I try to search for an installer, ...
2
votes
1answer
633 views

Simple PGP encryption in one step?

I would like to run gpg encryption on a file without having to register the keys with the system at all. Ideally, there would be a way to pass in a path to the key file and have the encryption run on ...
5
votes
2answers
655 views

if one doesn't care about protecting a gpg secret key, is it still as secure as using gpg --symmetric?

Each of Alice and Bob is using gpg just to protect his/her own personal files and not using it as a way to send encrypted text to others. Alice has generated a key (gpg --gen-key) that she uses to ...
2
votes
1answer
108 views

Sending an encrypted email to a public key

A person I wish to contact, posted his public key as his contact info. I have setup Thunderbird and generated my on key pairs but I am missing something. I do not understand how to use just his public ...
4
votes
1answer
865 views

Do PGP private key blocks “contain” the public key as well?

I've noticed that if I import my ASCII-armored PGP private key into an otherwise empty GnuPG keyring (by deleting ~/.gnupg beforehand), the keyring contains both the public and private keys. Also, the ...
0
votes
1answer
5k views

Using the GNUPG Encrypt Command on Windows 7 Professional

I am using the Windows port of GNU Privacy Guard "light" release for version 1.0.9 installed on a windows 7 professional laptop. Installed in the default directory of : C:\Program Files ...
1
vote
2answers
1k views

What is the file format for storing PGP private keys?

I tried to understand it from RFC and from source code (mainly from gnupg and gpgme) and I didn't get the way the data should be stored when someone export secret keys. I know there should be ...
0
votes
2answers
861 views

Formatting OpenSSL encrypted message, and signature in the same plaintext file

I'm working on designing an API which requires encrypted messages to be signed and sent over TLS. The TLS is HTTP/SSL. The messages themselves are a few hundred Kb (at most) of JSON data, encrypted ...
11
votes
1answer
3k views

Are files encrypted with gpg compatible with pgp?

Are files encrypted with gpg compatible with pgp? What about the other way? I recently learned the very basics of the procedures of using gpg to encrypt and decrypt files. But I don't have a lot of ...
6
votes
2answers
6k views

How to use gpg and SSH together? [duplicate]

Possible Duplicate: Are GPG and SSH keys interchangable? How to use gpg and SSH together? I know the basic procedures of 1) using gpg to encrypt and decrypt text files and 2) generating ...
1
vote
1answer
276 views

What's a good example of showcasing the advantage of gnupg2 over gnupg?

Q1) What's a good example of showcasing the advantage of gnupg2 over gnupg? Q2) I'm trying to build encryption into a small piece of software for internal project management. Is gnupg a good tool to ...
4
votes
1answer
326 views

gpg - Is the MDC check redundant if the file is signed?

I understand that gpg 1.4.9 computes a MDC code by default. According to my research this corresponds to to Sym. Encrypted and Integrity Protected Data Packet (tag 18) in the PGP spec. If the file is ...
1
vote
2answers
532 views

How can I disable prompt about trust when encrypting file with gpg in emacs

I want to use emacs to edit files encrypted with gnu privacy guard. Im using the gpg support built into emacs 23 which I think is easy pg assistant. I import keys created at the command line with M-x ...
1
vote
1answer
267 views

What's the easiest way to revoke a PGP key using MacOSX?

I haven't used PGP in ages and since then I most likely lost the keys. I want to revoke them regardless and I do have the revocation keys printed in paper. I already typed and proof-read them a couple ...
3
votes
2answers
7k views

Authenticating and adding public key for apt

I was trying to get the official mongodb for Ubuntu, following the instructions at http://www.mongodb.org/display/DOCS/Ubuntu+and+Debian+packages After adding the deb ...
5
votes
5answers
2k views

What's the best way of keeping a PGP private key file generated by GnuPG?

What's the best way of keeping a PGP private key file generated by GnuPG? I will just store my public key online, in Gmail, on many of my computers. Where/how best to protect and store the private ...
15
votes
2answers
6k views

One GnuPG/PGP key pair, two emails?

I have two emails I use frequently, for both of which I'd like to use PGP keys generated/managed by GnuPG. I'd like to avoid creating a different key pair for each email, if possible, as that's ...
0
votes
1answer
153 views

Can I use GnuPG to verify that a file is unmodified and comes from the correct sender?

Can I use GnuPG to verify that a file is unmodified and comes from the correct sender? Let's take a simple use case: I have this file with some important content, let's say it is in a .tar.gz file. ...
9
votes
1answer
3k views

How does S/MIME differ from PGP/GPG, for the purpose of signing and/or encrypting email?

In addition to the titular question, are the two technologies compatible? If so, under what circumstances? What are the relative benefits of the two technologies?
1
vote
4answers
374 views

Email utopia: cross-platform (inc mobile), encryption, signing, threading, account aggregation. Is it possible? If so, how?

I'd like to achieve the following: Be able to aggregate my email accounts such that I can receive an email sent to one of my email accounts and reply to it from any other email account of mine, ...
4
votes
1answer
289 views

Is it possible to find a sender's Public PGP (GPG) key from an encoded message?

Could you find the sender's Public PGP (GPG) key from an encoded message?
2
votes
0answers
536 views

How to customize Seahorse plugin behavior in Nautilus?

I use Fedora 14. The seahorse-plugins package adds a nifty context menu option in Nautilus that allows you to encrypt/decrypt files easily with your GPG key. But is it possible to customize its ...
3
votes
1answer
197 views

Are there no further developments in GnuPG?

Though the GnuPG website shows the last stable release date to be: 2010-10-18, I feel there are no major improvements. Till the year 2003-2004, I used to see active developments and releases. I ...
4
votes
2answers
294 views

How can I get a new / non-technical user to verify my GnuPG / PGP signed email?

I'm looking for a web front-end or some easy way to get a user who's never been exposed to cryptography / digital signatures etc. to simply copy/paste my GPG signed (not encrypted) email and specify ...
4
votes
1answer
2k views

How do I integrate GPG with alpine?

I have tried a couple of howtos, but they seem to either be too out of date or just plain don't work (don't work for me, at least). How do I sign and encrypt messages, as well as check integrity of ...
1
vote
1answer
486 views

Does PGP work like Zip sometimes?

Can you put multiple files in a GPG/PGP encrypted file? Just wondering.
1
vote
1answer
856 views

What is the best PGP program, commercial products included?

What is the best PGP program, commercial products included? Must have: Easy and streamlined email integration for common clients. Easy to encrypt single files with simple GUI. Some kind of trusted ...
0
votes
2answers
114 views

the encoding mechanism

can i know what the encoding mechanism is used here to encode the key below ? -----BEGIN PGP PUBLIC KEY BLOCK-----Version: SKS ...
0
votes
1answer
84 views

GnuPG: verifying the sender

A person emailed me his PGP signature. When I compared it to the signature from the PGP server, it is much shorter not matching at all. I use the version 1.4.9. Why is the signature so short? Why ...
37
votes
1answer
2k views

Short, easy to understand explanation of GPG/PGP for nontechnical people?

Does anyone have a link to a good, but short (1-2 paragraphs) explanation of the benefits of using GPG/PGP signing and encryption for Email focused at non-technical readers? That is, why would someone ...