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Proton Mail introduces post-quantum encryption | Proton (proton.me)

submitted 1 week ago by Blaze@piefed.zip to c/privacy@programming.dev

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Proton Mail now supports post-quantum encryption, helping protect new encrypted emails against future quantum threats.

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[–] Valmond@lemmy.dbzer0.com 6 points 1 week ago (1 children)

I can encrypt a message with your public key, and only you can decrypt it. The db will store the encrypted version.

For example.

This is not necessarily what/why they do it, just one example of how asymmetric ciphers can be useful in an email scenario.

[–] onlinepersona@programming.dev 4 points 1 week ago (1 children)

Just about nobody uses that. Your bank, your online store, your doctor, the state, and about everybody except Alice and Bob send you unencrypted mail.

Encrypting your email once received is like storing your postcards in a safe.

[–] Valmond@lemmy.dbzer0.com 1 points 1 week ago

It was just an example. Maybe you have your private key locally to access your email, so that if there is a security breach it's impossible for them to release unencrypted emails?

I mean I don't know why, but there are loads of good examples of why someone would.