An encryption scheme is called symmetric if it uses the same key to both encrypt and decrypt a message. Technically, the encryption key e and decryption key d don't have to be exactly the same.
Apr 16, 2018 What Is Symmetric Encryption | Venafi Nov 09, 2017 What is symmetric encryption? We explain it in detail
Description of Symmetric and Asymmetric Encryption
Difference Between Symmetric and Asymmetric Encryption Sep 29, 2018
Symmetric Encryption. Symmetric encryption uses a single key to encrypt and decrypt. If you encrypt a zip file, then decrypt with the same key, you are using symmetric encryption. Symmetric encryption is also called “secret key” encryption because the key must be kept secret from third parties.
What is Symmetric Encryption? - OmniSecu