Signal vs Encrypted Email

Right now, I’m sending myself emails for notes. I don’t use the subject line because of potential metadata exposure.

Is this similar to sending yourself notes via Signal?

Or is signal more secure somehow. If so, why?

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Signal has Note to Self. They’re E2EE using the Signal protocol so yes they’re more secure than emails.

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Somewhat related, you might want to also look into a dedicated E2EE note app.

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Why though? Isn’t an email to yourself via proton E2EE as well?

Is it just because of metadata or is the encryption in signal stronger somehow?

I’d assume both.
Also it’s instant, more practical to search/filter and doesn’t have super small file uploads limits.

The encryption strength is comparable (both are strong), but Signal’s architecture is fundamentally more private because it minimizes what ever exists on a server in the first place.

Proton is trusting encryption to protect data they store; Signal avoids storing it at all.

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@fria created a very nice reading about emails, I think worth having a look:

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For this use case, Signal does have cryptographic features that PGP lacks.

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