University:
California State University, Los Angeles
Course:
CS4780 | Cryptography and Information Security
Academic year:

2023
Views:

90

Pages:

2
Author:

Julie E. J.

Diffie-Helman Key trachange Aonly used for exchanging the keye. b a (mod p) where o (P-1). a i- descrete logarithm for the base amat 9- Prime no. &- integer and is a Primichve root of q. User A Selects nandom integer XALQ and YA = A moda i 11poly B selects XB29 and ot YB = xxB modq Prve that K = (YB) XA mod 2 Es same as that of K-(YA) XB nued 2 Prof • K = (YB) XA mod q² + it- CxXB moda) XA mood q = (XB) XA mod q mod a = (& XA) XB moda AB