Open AccessPenerapan Visual Basic for Application (VBA) Sebagai Alat Bantu Ajar Enkripsi dan Dekripsi DES
Author(s) -
Yasri Yasri
Publication year - 2011
Publication title -
comtech/comtech
Language(s) - English
Resource type - Journals
eISSN - 2476-907X
pISSN - 2087-1244
DOI - 10.21512/comtech.v2i1.2805
Subject(s) - computer science , encryption , visual basic for applications , task (project management) , binary number , artificial intelligence , arithmetic , programming language , computer security , mathematics , management , economics
The DES encryption/decryption algorithm is quite a popular algorithm due to ease in learning. Calculations for DES using binary numbers however are very difficult, including 16 rounds required for a full encode. Teaching DES encryption manually is difficult since it requires a long time. It also requires high accuracy for the 64-bit binary numbers, the possibility of mistakes are very high. Besides, the students cannot perform self-check, whether the given task is done correctly. Application of Excel and VBA is used to facilitate observation, comparison, and understanding the DES algorithm. The result is a teaching model using DES for modern encryption.