Question

Public key cryptography encryption and decryption

Answer 1

With the spread of more unsecure computer networks in last few decades, a genuine need was felt to use cryptography at larger scale. The symmetric key was found to be non-practical due to challenges it faced for key management. This gave rise to the public key cryptosystems
The most important properties of public key encryption scheme are −

Different keys are used for encryption and decryption. This is a property which set this scheme different than symmetric encryption scheme.

Each receiver possesses a unique decryption key, generally referred to as his private key.

Receiver needs to publish an encryption key, referred to as his public key.

rsa cryptography is used in it

Answer 2

what do you mean by cryptography and cipher text? And explain in detail the public key encryption and private key encryption?