Encryption

Encryption is the process of encoding data, and decryption  is the process of changing it back (decoding). The encryption of data is mainly used for the security of that data during data transmission. Encrypting data is essential for transferring financial transactions and is commonly used on the internet. There are two main forms of encryption:

 

 

Asymmetric Encryption requires a key for encryption and a key for decryption. Most commonly there is a public key  used for encryption. This public key is widely available. There is then a private key used for decryption. Symmetric Encryption requires the same key be used for encryption as well as decryption.