What is public and private key cryptography? Based on NIELIT NIC SCIENTIST B ,drdo,btech ,mca bca.

In this tutorial explained topics are:- Define cryptography? Define encryption and decryption What is public key cryptography? Define private key cryptography? Define symmetric key encryption? Asymmetric key cryptography Difference between symmetric and asymmetric key cryptography. Difference between public and private key cryptography. Link of tutorial2:- https://youtu.be/BPPqm_4rqwk Nielit network security Nic computer network syllabus # nic