Symmetric vs Asymmetric Encryption & the Role of Certificate Authorities Explained 🔐

#Symmetric #Asymmetric #Encryption

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#Symmetric #Asymmetric #Encryption

Symmetric vs Asymmetric Encryption? What is a Certificate Authority? Tech Interview Prep

First let's define encryption

Core idea is to change a message, say a text file, using an algorithm

Once encrypted you must know they formula to decrypt the message

For example we can encrypt Kimavei as a number by converting K to 11, K is at 11th place in alphabet order, and so on.

Now let's understand Symmetric vs Asymmetric Encryption

Symmetric - One key

This is the simplest kind of encryption that involves only one secret key to cipher and decipher information

The sender and the recipient should know the secret key that is used to encrypt and decrypt

Asymmetric - Two key

Asymmetric encryption is public key cryptography

A message that is encrypted using a public key can only be decrypted using a private key,

a message encrypted using a private key can be decrypted using a public key.

Security of the public key is not required because it is publicly available

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