Explain Encryption in brief and its Types?

Encryption

Encryption is the practice of encoding messages or information in such a way that only authorized parties can read it. 

Encryption uses an algorithm and a key to transform the original data into a coded version that is not readable without the key. 

There are many different types of encryption, but they all serve the same basic purpose: to protect the confidentiality of a message or data.

Encryption Types

There are two main types of encryption: symmetric and asymmetric.

▶ Symmetric encryption, also known as shared secret encryption, uses the same key for both encryption and decryption. 

This means that both the sender and the receiver of the message must have the same key in order to communicate. 

Examples of symmetric encryption algorithms include AES and DES.

▶ Asymmetric encryption, also known as public key encryption, uses two different keys for encryption and decryption. 

One key, known as the public key, is used to encrypt the message, and the other key, known as the private key, is used to decrypt it. 

This means that the sender can encrypt the message using the recipient's public key, and the recipient can decrypt it using their private key. 

Examples of asymmetric encryption algorithms include RSA and Diffie-Hellman.