Advanced Infrastructure Penetration Testing

Asymmetric cryptosystem

Following are the algorithms of Asymmetric cryptosystem:

• Rivest-Shamir-Adleman (RSA): RSA is one of the most widely used cryptosystems on the internet. It was developed by Ron Rivest, Adi Shamir, and Leonard Adleman at MIT. When using RSA, a pair of keys will be generated, a private key, and a public key.
• Diffie-Hellman key exchange: The Diffie-Hellman key exchange is a way of creating a key without sharing and exchanging information during this operation.

The basic idea works like this:

1. 1. Select two prime numbers, g and p 
   2. Compute ga mod p and send the output
   3. The other key computes gb mod p and sends the output B
   4. Compute Ba mod p
   5. The same on the other key computes Ab mod p

• El Gamal: El Gamal is a cryptosystem ...