Asymmetric and Symmetric Encryption

There are two main types of encryption that use certificates, and these are asymmetric and symmetric; we need to learn about each thoroughly. Let's start by explaining what encryption is; please remember that you are taking plaintext and changing it into ciphertext.

Encryption Explained

Encryption is where we take plaintext that can be easily read and convert it into ciphertext that cannot be easily read. For example, if we take the word pass in plaintext, it may then be converted to UDVV; this way, it is difficult to understand:

• Substitution Cipher: Julius Caesar, who died in 44 BC, invented the first substitution cipher, where he moved each letter of the alphabet three places one...