Key exchange scheme in the style of Diffie Hellman

[Omar Herrera Reyna]

On Fri, Dec 22, 2017 at 9:19 AM <0h3rr3r4 at gmail.com> wrote:

> For those interested here is the Case source code of a scheme for key
> exchange similar in concept  to a DH Key exchange process, but using simple
> bitwise operations with an iterated function:
>
>  https://github.com/Caume/HerraduraKEx
>
> Sample of the output:
>
>
> ALICE:
> 15076425430454950481 A [Secret 1]
> 5065174741009230133 B [Secret 2]
> 6616145336279823145 D [FSCX_REVOLVE(A,B,16)] ->
>                    BOB:
>                    A2 5640910407791789943 [Secret 3]
>                    B2 2734548036544947114 [Secret 4]
>                 <- D2 7953994751009905686 [FSCX_REVOLVE(A2,B2,16)]
> 11220837854338859672 FA [FSCX_REVOLVE(D2,B,48) xor A]
>                  FA = FA2 11220837854338859672 [FSCX_REVOLVE(D,B2,48) xor
> A2]
> EVE: NOT (D xor D2)= 14577306244540485824
> EVE: D xor D2= 3869437829169065791
> EVE: FSCX(D,D2)= 14126811020873148126
> EVE: FSCX(D2,D)= 14126811020873148126
> EVE: FSCX(D,D2) xor D= 11519582121138542071
> EVE: FSCX(D2,D) xor D= 11519582121138542071
>    ...
> EVE: FSCX_REVOLVE_PRINT(D,D2,64)= 6616145336279823145
>    ...
>
>
Update: Added an encryption protocol (HAEN) and code, based on HKEX and the
FSCX function
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