IMPLEMENTASI ALGORITMA DES UNTUK KEAMANAN PADA STUDI KASUS DATA NILAI

Cryptography is a saint which use a linier mathematic to processed data encryption

or decryption. This tecnic to use for convertion or change data to be a code spesialy,

with for information save or to transmission with network not to safe (like Internet),

can’t be read from whoever except the people which can be read.

Modern block ciphers or the famous is the cryptography the most widely used

only in security information and prepare some function security information like a

Enryption function (the same with to Conventional Method, key public or conventional

method and key public), Digital Signature, or key protocol. That’s function to used

for securition data like confidentiality, authentication, integrity, availability, access

control data.

The research of last job are use DES Algorithm which on implementation in study

case value data and applying on network. DES are one of method which use in modern

cryptography.

The main algorithm is part of three group are DES Key Process, Enscrypt 64-bit

and data descrypt 64-bit data. DES can take key block 64-bit and can use 56-bit key

as long as execution. If used on communication system then between sender and

receiver must take same secret key, to used encrypt and decrypt data to send/received.