12.-+EncryptionDecryption

= Encryption = =is a process of translating a message, called the Plaintext, into an encoded message, called the Ciphertext. This is usually accomplished using a secret Encryption Key and a cryptographic Cipher. = Two basic types of Encryption are commonly used:
 * [|Symmetric Encryption], where a single secret key is used for both encryption and decryption.
 *  [|Asymmetric Encryption], where a pair of keys is used -- one for Encryption and the other for Decryption.

De cryption is the opposite process