Des Triple Algorithm in Security Office Data Security Mayor Pematangsiantar: Des Triple Algorithm in Security Office Data Security Mayor Pematangsiantar

Juli Wahyuni (STIKOM Tunas Bangsa Pematangsiantar)
Indra Gunawan (STIKOM Tunas Bangsa Pematangsiantar)
Ika Okta Kirana (STIKOM Tunas Bangsa Pematangsiantar)
Rafiqa Dewi (STIKOM Tunas Bangsa Pematangsiantar)
Solikhun Solikhun (STIKOM Tunas Bangsa Pematangsiantar)

Jurnal Mantik
Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)

In this era, technology is increasingly advanced and rapid, where data confidentiality is one of the things that is very important for a company. Employee data is data that is very important for the company. So it needs a system that can secure a database of employees from various types of hecker attacks or eavesdroppers who can steal and damage data. Cryptography is a science based on mathematical techniques that deal with information security such as data confidentiality. Triple DES algorithm is a development of DES algorithm, the algorithm used is the same, only in Triple DES algorithm, the encryption and decryption process is done 3 times. Triple DES also has three different keys. The three keys used can be mutually independent (K1 ? K2 ? K3) or only two keys are mutually independent and one other key is the same as the first key (K1 ? K2 and K3 = K1). This algorithm can generate encryption that cannot be read or understood by humans and results in the exact decryption of the initial plaintext input.