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Re: recipient does not have pgp key? can i still send an encrypted email
From: |
Adam Sjøgren |
Subject: |
Re: recipient does not have pgp key? can i still send an encrypted email? |
Date: |
Fri, 09 Dec 2022 19:25:57 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
vani writes:
> it seems we need recipient pgp key for sending
> encrypted email. if there is no pgp key, can i
> still encrypted email?
No, not with public-key cryptography¹, which is what is usually used.
You need the recipients public key to be able to encrypt the email to
them.
If you and the recipient share a secret (eg. a password), you could use
symmetric encryption², but you have to share the secret in some other
way first, so it's rarely a solution.
Best regards,
Adam
¹ https://en.wikipedia.org/wiki/Public-key_cryptography
² https://en.wikipedia.org/wiki/Symmetric-key_algorithm
--
"(Phew, it's hard to explain with my poor Adam Sjøgren
English.)" asjo@koldfront.dk