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Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference?

Cross-posted to 3 groups.

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Kim,

> In cloud storage, zero-knowledge encryption is a privacy
> model where the provider does not hold the key needed to
> decrypt customer's protected data.

iow, "zero-knowledge encryption" is a mis-nomer.

You could as well claim that the intermediate servers in an SSL connection
work with "zero-knowledge encryption" - when all they do is to shuttle some
binary data to and fro.

> What Is End-to-End Encryption?
>
> End-to-end encryption protects content from the moment
> it leaves an authorized device until it reaches the
> intended recipient's device.

Wrong again.  That is not what it *is*, that is what it *does*.(or /should/
do).

End-to-End Encryption is simply the (act of) encrypting of the data on the
source machine, and only allowed the data to be decrypted on the target
machine - because no other machines than those two have the (encryption and)
decryption keys.

> This is different from ordinary encryption at rest.

No, it isn't.   Its not a property of an encryption method, its a feature of
how the transfer is managed.   P2P (point-to-point) versus P2S2P 
(point-to-server-to-point).

> Encryption at rest protects files on a server, but the
> provider may still control the keys that unlock them.

And there you have the problem : *why* should a provider have the decryption
keys for data that is only ment for a specific recipient ?

Answer: The company - mostly one of those "social media" ones - wants to
know whom is saying what to whom.  Hey, how otherwise would they know which
kind of advertisements they best send to either party ?   :-)

> This is stronger than ordinary encryption in transit.

Bullshit.

The problem is not the encryption, but allowing other parties than the
source and target to have their respective decryption keys.

> End-to-end encryption does not remove every security
> responsibility.

Ofcourse not.  But whats left has got absolutily zero to do with whatever
kind of encryption (if any) was used.

If you walk to or from the bank you can get robbed (or even forget the
plastic bag with the money in it in a bus or train, or even ontop of your
car/cab.  And yes, all three have happened).  Thats is not something the
bank has any responsibility for.

iow, even if you do not use any kind of (end-to-end) encryption, you
*always* need basic computer sanitation (to keep malware outof it).
Otherwise you could loose a *lot* more than the contents of such an a
end-to-end encryption protected converation.

Regards,
Rudy Wieser

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Thread

Zero-Knowledge Encryption vs End-to-End Encryption: What’s the Difference? Kim JongUn <USAandNK@WorkersParty.org> - 2026-09-09 20:41 +0200
  Re: Zero-Knowledge Encryption vs End-to-End Encryption: What’s the Difference? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-09 21:34 +0200
  Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-09 22:22 +0200
    Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Kim JongUn <USAandNK@WorkersParty.org> - 2026-09-09 22:50 +0200
      Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-10 07:43 +0200
    Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Hermes <noreply@oc2mx.net> - 2026-09-11 17:30 +0000
      Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-11 20:07 +0200
        Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Hermes <noreply@oc2mx.net> - 2026-09-11 18:29 +0000
          Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-11 21:55 +0200
            Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Hermes <noreply@oc2mx.net> - 2026-09-11 20:32 +0000
              Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-12 08:22 +0200
            Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Librarian2025 <librarian2025@cock.li> - 2026-09-16 00:32 -0500
              Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-16 08:44 +0200
              Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Gab_Virebent <gabriel1@virebent.invalid> - 2026-09-16 09:28 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-16 15:45 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-16 18:57 +0100
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-16 21:40 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-17 00:46 +0100
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-17 09:38 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-17 10:32 +0100
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-17 19:12 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-18 11:16 +0100
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-18 15:03 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Librarian2025 <librarian2025@cock.li> - 2026-09-17 01:12 -0500
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-17 09:46 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Librarian2025 <librarian2025@cock.li> - 2026-09-17 13:54 -0500
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-17 22:11 +0200
                Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? Yamn3 Remailer <noreply@mixmin.net> - 2026-09-17 21:15 +0100
        Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-11 20:31 +0200
          Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-11 22:16 +0200
            Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-11 22:44 +0200
              Re: Zero-Knowledge Encryption vs End-to-End Encryption: What's the Difference? "R.Wieser" <address@is.invalid> - 2026-09-12 08:42 +0200

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