State and explain two types of encryption and decryption techniques used to secure the network ?

1. Symmetric Encryption: In symmetric encryption, the same key is used for both encryption and decryption of data. This means that both the sender and the receiver must have the same key in order to encrypt and decrypt messages. This type of encryption is fast and efficient, but it can be vulnerable to attacks if the key is compromised. Examples of symmetric encryption algorithms include AES (Advanced Encryption Standard) and DES (Data Encryption Standard).

2. Asymmetric Encryption: 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 data, while the other key, known as the private key, is used to decrypt the data. The public key can be shared with anyone, while the private key must be kept secret. This type of encryption is more secure than symmetric encryption, as the private key never needs to be shared. Examples of asymmetric encryption algorithms include RSA (Rivest-Shamir-Adleman) and ECC (Elliptic Curve Cryptography).