Dnia 27.04.2022 o godz. 15:46:33 wilson pisze: > today everyone claim they are encrypted email provider. > what's the definition of an encrypted email? messages and headers > and logs were encrypted in the rest?
"Encrypted email" is a very vague term and one can understand it very differently. Myself, I understand "encrypted email" usually as end-to-end encryption, ie. before sending mail to someone, you encrypt it with that person's public key, eg. using GPG/PGP, and that person decrypts the message using their private key when they view it in their inbox. Support for this is integrated in most email clients. With this method, the message stays encrypted all the time - on your computer, in transit, on server and on recipient's computer. It is not encrypted only while you are writing it and on recipent's screen while viewing. Only the body of the message is encrypted, the headers are not. But this has nothing to do with the provider - it is purely a client-side thing. BTW. You can not only encrypt, but also digitally sign email with this method. But if someone speaks about "encrypted email" in context of a provider, I don't think they mean this kind of encryption. I think they rather mean the simple fact that all communication with the mail server is encrypted with TLS. So message is fully encrypted in transit (all communication is encrypted), but it stays unencrypted both on sender's and recipient's computer, as well as on the server (if you didn't use end-to-end encryption when sending it). This is pretty much a standard nowadays, so it's strange to me that anybody is putting any emphasis on this. Of course both these types of encryption can be used simultaneously, they don't exclude each other. There are also "encrypted email providers" that claim that the messages stay encrypted on their server, so for example admins are not able to access and view them - and that is what they mean by "encrypted email". This is usually in addition to the "standard" TLS encryption described above, which is basically a standard that everyone has. -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub."
