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# Open Thunderbird's menu again and select OpenPGP->Key management.
# Open Thunderbird's menu again and select OpenPGP->Key management.
# From the top bar, select Generate->New key pair.
# From the top bar, select Generate->New key pair.
# Enter a passphrase, set the key to never expire and generate the key.
# Enter a password, set the key to never expire and generate the key.
# If the window doesn't disappear after key generation (watch the progress bar), select cancel to close it.
# If the window doesn't disappear after key generation, select cancel to close it.
# Select "Display all keys by default" in the key management window.  Your new key should show up.
# Select "Display all keys by default" in the key management window.  Your new key should show up.
# Select your key, then from the menubar, select Keyserver->upload public keys.  Accept the default key server.
# From the menubar, select Keyserver->upload public keys.  Accept the default key server.
# If you want to install your key on your own computer as well, right-click on it and select ''Export Keys to File'', then select ''Export Secret Keys'' and save it to the USB stick.  '''Do not send this file via e-mail!'''
# If you want to install your key on your own computer as well, right-click on it and select ''Export Keys to File'', then select ''Export Secret Keys'' and save it to the USB stick.  '''Do not send this file via e-mail!'''
# Close the Key management window.
# Close the Key management window.
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==Sending signed and encrypted e-mail==
==Sending signed and encrypted e-mail==
If the icons in the bottom right of the compose window are on, your mail will be encrypted and signed.  If you don't have the key of the recipient, it will ask you what to do.  You should always select ''Download missing keys'' and accept the default key server.  It will pop up a window with too much information.  Ignore all of it and click Ok.  You then need to select the newly downloaded key and click Ok.  If there is no key on the server, you cannot send this person encrypted e-mail.  In that case, you must choose to either send it unencrypted or not send it.
If the icons in the bottom right of the compose window are on, your mail will be encrypted and signed.  If you don't have the key of the recipient, it will ask you what to do.  You should always select ''Download missing keys'' and accept the default key server.  If there is no key on the server, you cannot send this person encrypted e-mail.  In that case, you must choose to either send it unencrypted or not send it.
 
When reading encrypted e-mail, Thunderbird will ask for your passphrase.  After you enter it, you can read the e-mail.  It will show a colored bar at the top of the message saying that this is a decrypted message.  It will normally also say that it has an ''UNTRUSTED good signature''.  Don't worry about the untrusted part.  If you're interested, you can get rid of it by building up a ''web of trust''.


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[[Category:MOST methods]]
[[Category:MOST methods]]
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