This document describes public-key cryptography and the encryption and decryption process using a public and private key. It includes an example of encrypting and decrypting messages between two people and a table that seems to show encryption values using parameters like n, e, d and different row values.

4. Plain
Text
Encrypted
Code by
Public Key
Decrypted
Code by
Private Key
Person
one
Person Two
Communication

5. n = 77

6. Ø = 60
e = 13

7. A

8. row a b d k
1 1 0 60 No value
2 0 1 13 4
3 1 –4 8 1
4 –1 5 5 1
5 2 –9 3 1
6 –3 14 2 1
7 5 –23 1 2

10. d = 37