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First of all, I'm still learning GnuPG and how to use it.
Something that I can't figure out and I haven't found anywhere is how to keep gpg keys up to date on multiple machines ?
A few days a ago I changed the password of my key on my computer. But I also have that same key on Android with OpenKeyChain. I didn't found any information on how to update that key so I just delete it, and imported my key once again with the new password.
But there must be a better way of doing this, I doesn't make sense having to re-import everything every time you change something on your gpg key.
One way that I thought of doing this was with keyservers, but aren't keyservers only for public keys ?? If I change something in my key, then send/sync that key to the server, and refresh the key from the server in any other machine where I have the same key, would that update the password of my keyring/private-key ?
Also, another question. I created my gpg key with my "formal" email, but I have another email that I use a lot, Can I decrypt/receive encrypted emails to that email ? For example, I use FairMail on Android, and I have added my gpg key with OpenKeyChain.
Do the email have to match to the one from the gpg key so I can decrypt/receive encrypted emails ? If no, would adding a new name/email to the key work ?
p.d. Sorry if my english is bad.
Last edited by madrafa (2021-06-14 17:27:09)
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You will certainly benefit from reading the gpg man page.
A key server cannot change your secret key's passphrase. Use gpg --passwd on each copy. If you want you can use a different passphrase for each key or have no passphrase at all.
The e-mail address will help the sender's e-mail client select the right key but to decrypt the message, once you have received it, the e-mail address does not matter.
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