Question

How do Encryption and decryption help to maintain security ?

Answer 1

$\bold\red{Answer}$

How to Encrypt and Decrypt a File

Create a symmetric key of the appropriate length. You have two options. You can provide a passphrase from which a key will be generated.

Encrypt a file. Provide a key and use a symmetric key algorithm with the encrypt command.

Answer 2

Encryption and decryption help maintain security on the internet by making unauthorised personal not being able to enter that site or dater.