[Cryptography] "Perpetual Encryption"

[Ron Garret]

On Mar 29, 2017, at 7:51 AM, Phillip Hallam-Baker <phill at hallambaker.com> wrote:

> 
> 
> On Tue, Mar 28, 2017 at 8:56 PM, Allen <allenpmd at gmail.com> wrote:
> > I wonder, is this some variant of the idea of starting with a shared
> > unpredictable one-time pad K1, and sending the encrypted message (xor K1
> > M1) along with (xor K1 K2), where K2 is a new unpredictable one-time pad
> > to use for the next encryption?
> 
> I think the scheme is closer to this:
> 
> Mi = sequence of message bits
> Ri = sequence of random bits
> Pi = sequence of bits from PRNG keyed by key K
> 
> The encoder transmits Mi xor Ri, and Ri xor Pi.  The decoder generates
> Pi and recovers
> Mi = (Mi xor Ri) xor ((Ri xor Pi) xor Pi)
> 
> But its certainly not clear from the whitepaper.
> 
> ​I have a snakeoil crypto scoring scheme.
> 
> Any mention of 'keyless' 10 points
> Any claim of 'strength' greater than 2^256, 10 points
> Any claim of 'mathematically unbreakable', 20 points
> ​Any mention of One Time Pads, 50 points
> Pretty Web site entirely devoid of actual technical content, 20 points.

How many points for “post quantum”?  (How many points for putting both “post quantum” and “agile” in the name if your company?)

https://www.agilepq.com

rg

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