SLL System and Encryption is To trade electronic records or signals into a mystery code (= system of letters, numbers, or symbols) that people can not understand or use on regular Equipment.
Encryption is the method by which facts is transformed into mystery code that hides the data's proper meaning. The technological know-how of encrypting and decrypting information is called cryptography.
In computing, unencrypted information is also known as plaintext, and encrypted information is called ciphertext. The formulas used to encode and decode messages are referred to as encryption algorithms or ciphers.
To be effective, a cipher consists of a variable as a part of the algorithm. The variable, which is referred to as a key, is what makes a cipher's output unique. When an encrypted message is intercepted with the aid of an unauthorized entity, the intruder has to bet which cipher the sender used to encrypt the message, in addition to what keys had been used as variables. The time it takes to guess this facts is what makes encryption any such valuable protection tool.