All Questions
21
questions
29
votes
1
answer
15k
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?
- 957
1
vote
1
answer
2k
views
GPG Keys and Emails
I have been testing out GPG keys and were studying the changes of the keys when adding/removing users on the key. If I add a user Alice upon key generation. I export the key pairs's public and private ...
- 465k
1
vote
2
answers
484
views
Enigmail + GnuPG + Thunderbird hidden key error
A friend of mine recently updated his OpenPGP keys. I cannot open the encrypted email received from that friend in my Thunderbird. I use Enigmail, and I get the following error:
Enigmail Security ...
- 1
1
vote
0
answers
360
views
No prompt for setting a passphrase in GPG Keychain
I am trying to use GPG Keychain with Thunderbird (version 60.5.1) and Enigmail (version 2.0.9 / 20181209-1409).
In the process of generating a key for the email address after setting the password and ...
- 11
10
votes
3
answers
4k
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
0
answers
200
views
How can I configure Mutt's GPG support to use simple ASCII armor instead of PGP/MIME?
Since I started using signed (and sometimes encrypted) mail with PGP/MIME, I've heard about messages being marked as spam, making the communication less reliable. I found that this wasn't the case if ...
- 171
9
votes
4
answers
6k
views
Enigmail cannot communicate with gpg-agent
Update
As of Ubuntu 16.04, the plug-in works as expected and there's no need to downgrade as suggested in the accepted answer. The question was applicable to Ubuntu 15.04 and, maybe, 15.10.
Original ...
7
votes
3
answers
5k
views
Mutt with GPG Password Protection
I got Mutt working with the default IMAP password management configuration with this line in my config:
set imap_pass = XXXX
Which is obviously not secure. I looked at this
https://wiki.archlinux....
- 515
2
votes
0
answers
68
views
Mail encryption on Windows RT
Is it somehow possible to use mail encryption preferably via GPG on Windows RT?
Since on a Windows RT Surface tablet you only have access to Windows Mail as an app in the store, there is no fancy ...
- 121
2
votes
1
answer
112
views
GnuPG Domain to Domain email encryption
I'm running a Debian mail server and am looking forward to encrypt mails from my domain to the domain of a business partner. Also, the encryption should happen on the mail server itself not on a mail ...
- 65.3k
1
vote
1
answer
1k
views
GPG giving bad signature when email is downloaded as .eml
I'm trying to test whether someone with a copy of my public gpg key can verify a signed email that they receive from me. I'm using two computers for this. On the first, I have my key generated and ...
- 18.1k
1
vote
1
answer
139
views
GPG keys for mailinglists
There are two mailing-lists (e.g. [email protected] and [email protected]) for which I'd like to generate GPG keys and send the respective private keys to the members of the lists, so mails to the lists can ...
CommunityBot
- 1
2
votes
1
answer
3k
views
Using OpenSSL to generate encryption key for Outlook users
A private web application needs to receive encrypted email from perhaps 20 known users. How can I use OpenSSL to generate a valid encryption certificate that Outlook users can import and use to ...
CommunityBot
- 1
9
votes
1
answer
2k
views
How do I prevent Enigmail from encrypting my email, even when encryption is turned off?
Enigmail add-on to Thunderbird is encrypting all emails, even when encryption is turned off.
I save the email as a draft, and when I view it in Drafts folder (or if it was sent), then it shows as ...
- 6,046
0
votes
1
answer
161
views
What's the standard (or accepted) method to use several encryption subkeys in GPG?
I would like to create for myself an offline main key with three subkeys.
for signing
for encryption on standard computer which I hope to be able to secure better
for encryption (and consequently ...
- 135