[ExI] Encryption

Kunvar Thaman f20170964 at pilani.bits-pilani.ac.in
Wed Jan 22 14:54:11 UTC 2020


>
> Consider a photograph made with a standard phone with 16 bit color.  One
> could take that photo, encode a message in the least significant bit.  The
> change in the photograph would be impossible to detect.  There is no way to
> prove that there is a message in that LSB.  Of course the message is 16
> times longer than the unencrypted message, but that shouldn’t matter in our
> times of abundant bandwidth.


Nice example. Yes, the governments can try to put restrictions on
companies, but even now there are ways to encrypt messages such that even
if quantum computers are there, they won't be able to crack the messages.

I'm not aware of what's going on in China other than that they use Deep NNs
for facial recognition, somewhat similar to 1984's Big Brother's party.

(Funny story - I like to ask my friends whether they'd ever give the
government their photograph and personal identification data, and they're
almost always like "NO" but then I tell them that they all have passports.
Que the look of surprise.)

Everything is information - the bits of information are indestructible -
everything theoretically could be used to encrypt messages.

&Kunvar

On Wed, Jan 22, 2020 at 7:52 PM spike jones via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

>
>
>
>
> *From:* extropy-chat <extropy-chat-bounces at lists.extropy.org> *On Behalf
> Of *John Clark via extropy-chat
> *Subject:* [ExI] Encryption
>
>
>
> >…
>
>
>
> Apple dropped plan for encrypting backups
> <https://www.reuters.com/article/us-apple-fbi-icloud-exclusive/exclusive-apple-dropped-plan-for-encrypting-backups-after-fbi-complained-sources-idUSKBN1ZK1CT>
>
>
>
> It seems that governments just don't like encryption.... China has long
> been on the anti-encryption bandwagon and now India has jumped on too and
> wants to stop civilian use of it…
>
> John K Clark
>
>
>
>
>
> Technology has come to our rescue.
>
>
>
> Consider a photograph made with a standard phone with 16 bit color.  One
> could take that photo, encode a message in the least significant bit.  The
> change in the photograph would be impossible to detect.  There is no way to
> prove that there is a message in that LSB.  Of course the message is 16
> times longer than the unencrypted message, but that shouldn’t matter in our
> times of abundant bandwidth.
>
>
>
> Not only could encrypted messages be sent in such a way that they look
> like ordinary photos, it could be completely secure if encrypted using a
> one-time pad on a computer not connected to the internet.  Result: snoops
> can neither crack the message nor even prove there is an encrypted message
> to crack.
>
>
>
> Ain’t math cool?
>
>
>
> spike
>
>
>
>
>
>
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> extropy-chat at lists.extropy.org
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>
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