Information security has grown into a huge factor, especially in modern communication networks, leaving gaps that can be exploited to devastating effect. So what are symmetric and asymmetric encryption and which is better asymmetric or symmetric encryption. Let’s find out by reading the article below.
What are symmetric and asymmetric encryption?
Symmetric Encryption
Symmetric encryption aka symmetric key cryptography uses a single key to encrypt and decrypt data. You must share this key with the recipient. Say you want to say mom I love you, you write your email, then set a key to encrypt it. When mom gets the message, she enters the key to decrypt the email.
Asymmetric Encryption
With asymmetric encryption, the key is split in half to create a key pair consisting of a private key and a public key. The message is then encrypted with the public key, but can only be decrypted with the corresponding private key. If you are the receiving end, you first create an asymmetric key for yourself. You can then give the public key to anyone you wish to receive messages from, but keep the matching private key entirely to yourself.
Which is better asymmetric or symmetric encryption?
Symmetric encryption is indeed one of the fastest encryption techniques, but the keys need to be exchanged securely to be effective. Therefore, asymmetric encryption is used to exchange the keys involved in symmetric encryption. In use cases, asymmetric encryption is briefly used to exchange parameters and establish symmetric encryption for the rest of the communication. Asymmetric encryption is slow and resource intensive and is only used to compensate for the shortcomings of symmetric encryption. Therefore, they both are used together to achieve ideal secure communication, maintain privacy, achieve authenticity, data integrity and proper authentication.
I hope this article will help you to learn what are symmetric and asymmetric encryption and which is better asymmetric or symmetric encryption. The main difference between symmetric and asymmetric encryption is speed and security preference.
