Cryptographic Protocol on a PICO

Message4.js 18 Aug 2016
Testing the RNG and AEScmac cryptographic primitives for use in the cryptographic protocol.
require("RNG")
require("AEScmac")
The AEScmac is used to validate the entire message in Mhash
The AEScmac is applied to the previously sent Rnd and compared to
The Auth block to validate that the sender of the message possesses
The keys and is authentic.
The AEScmac is NIST approved
The RNG (random number generators) are two different instances with different keys on the client and server and do not need to be synchronized
They can be randomized at random intervals.
The output of Message4.js

Auth and Mhash keys
97,79,5c,b2,76,68,8,ea,88,a9,11,b3,ca,a7­,d8,d,
3a,8b,60,3c,70,61,9c,7,99,3e,c,c3,65,dd,­b1,ff,
Client builds and sends inital message
Message=
41,31,fd,1e,8f,21,41,d6,f2,33,90,16,be,c­5,b0,75,
94,84,49,64,37,1b,74,7,b7,81,62,95,6c,3b­,98,da,
6,6,a7,8c,7e,ff,21,29,d8,4a,e3,60,e4,a6,­d,21,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
ab,c3,87,86,83,e8,c6,47,e4,41,fa,62,43,7­0,56,a,
Server checks the message
checking Mhash
Valid
Server builds and sends reply message
Message=
41,86,93,5b,ee,5f,f1,c9,b4,59,5e,42,f3,7­2,cf,c2,
da,f9,db,87,d0,b,47,6b,e4,59,c8,26,59,9c­,5e,2f,
b0,9b,f7,e0,70,16,ed,bd,fe,5c,18,de,a5,2­5,eb,e3,
8,a9,a5,1d,59,55,37,c3,45,bc,65,37,fe,12­,34,50,
2f,a6,4e,35,94,3f,77,fc,89,45,68,ec,fe,1­5,b6,62,
Client checks the message
checking Mhash
Valid
checking Auth
Valid
Client builds and sends reply message
Message=
42,9,63,23,50,5f,4b,0,d1,bd,c0,32,cc,e1,­2a,e9,
21,cd,fd,f,f8,4,cc,57,c0,b3,50,c1,fc,1b,­1a,7,
dc,98,81,85,9d,5e,e5,b1,d,e,21,ea,bd,2c,­53,17,
c3,9b,80,a8,bb,f1,22,27,9c,e4,71,3a,6,21­,62,d8,
59,f8,7,1f,ba,d7,3a,6b,7b,b8,13,10,5c,e7­,53,a7,
Server checks the message
checking Mhash
Valid
checking Auth
Valid
Server builds and sends reply message
Message=
42,68,9a,41,25,a1,f7,76,30,ce,a,88,82,bc­,e5,75,
50,8f,4e,1e,2f,97,64,c8,68,2d,9,68,77,98­,ff,de,
6c,c,3c,6,46,d6,8d,76,64,47,ac,a8,76,eb,­ce,3c,
b9,39,9,51,80,da,7c,95,c2,4e,6e,d9,71,7,­97,82,
66,72,34,4a,2a,54,61,39,a,a3,3e,cd,c,90,­75,4e,

3 Attachments

• message4.js
• AEScmac.js
• RNG.js