January 8, 2002
Practical Aspects of Modern Cryptography
RSA Public-Key Cryptosystem
•
Alice
•
Select two large
random primes
P
&
Q
.
•
Publish the product
N=PQ
.
•
Anyone
•
To send message
Y
to
Alice, compute
Z=Y
X
mod N
.
•
Send
Z
and
X
to Alice.