While it’s a good solution, it is entirely untrue. A message is either End to End Encrypted or it is not. If the message is decrypted at any point between the sender and the intended recipient, it is definitively not End to End Encrypted.
E2EE means it’s End-to-End Encrypted. If it’s decrypted at any point during transit then it’s by definition not E2EE and Beeper shouldn’t be making that claim.
Sticking two E2EE tunnels together with a plaintext middleman doesn’t result in a single E2EE tunnel.
The reason the distinction is important is because the security profile is vastly different—a compromised server leads to a compromised message—which isn’t true for actual E2EE services like a pure Matrix link.
Side note: the first thing you should ask of a “end-to-end encrypted” product to you is “which ‘ends’ do you mean?” I’ve seen TLS advertised as E2EE before.
Adding: TLS is actually a pretty apt analogy here.
You could make a chat server that just accepts plain text messages over a TLS link, and that’s basically the same security topology as with this Beeper bridge.
It’s bizarre that Sunbird touted their solution as end-to-end encrypted, when it can’t be - iMessage drops to plaintext on the Mac farm.
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While it’s a good solution, it is entirely untrue. A message is either End to End Encrypted or it is not. If the message is decrypted at any point between the sender and the intended recipient, it is definitively not End to End Encrypted.
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You can’t change encryption in the middle without decrypting, however briefly.
It’s encrypted at the beginning and at the end, but NOT from beginning to end.
E2EE means it’s End-to-End Encrypted. If it’s decrypted at any point during transit then it’s by definition not E2EE and Beeper shouldn’t be making that claim.
Then it’s not E2E encrypted.
One end is your device, the other end is the other device. It’s only E2E encrypted if it is not decrypted until it reaches the other device.
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Sticking two E2EE tunnels together with a plaintext middleman doesn’t result in a single E2EE tunnel.
The reason the distinction is important is because the security profile is vastly different—a compromised server leads to a compromised message—which isn’t true for actual E2EE services like a pure Matrix link.
Side note: the first thing you should ask of a “end-to-end encrypted” product to you is “which ‘ends’ do you mean?” I’ve seen TLS advertised as E2EE before.
Adding: TLS is actually a pretty apt analogy here.
You could make a chat server that just accepts plain text messages over a TLS link, and that’s basically the same security topology as with this Beeper bridge.
But no one would call that a E2EE chat.
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How does one host their own beeper server?
Edit: found it
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