February 19, 2002
Practical Aspects of Modern Cryptography
113
Diffie-Hellman Key Exchange
Alice
nRandomly select a large integer a and send A = Ya in Ep.
nCompute
the key K = Ba in Ep.
Bob
nRandomly select a large integer b and
send
B = Yb in Ep.
nCompute
the key K = Ab in Ep.
Ba = Yba = Yab = Ab