Public Key Cryptography - Concepts

The video tutorial explains the basic framework of public key cryptosystems using a mechanical analogy. It describes how these systems use two keys: a public key for locking and a private key for unlocking. The public key is widely distributed, allowing anyone to encrypt messages, but only the holder of the private key can decrypt them. This ensures secure communication, as the private key remains confidential. The tutorial also highlights the mathematical foundation of these systems and the importance of key distribution for maintaining security.

How does the public key function in the process of sending a message?

What is the significance of the private key in the public key cryptosystem?