Data Security System: File Inserted with Digital Signature Using IDEA

Data Security System: File Inserted with Digital Signature Using IDEA

Author		: RIZKI RIANDINI ARDHIANA; RUMANI M.; SURYA MICHRANDI NASUTION
Published on	: International Joint Conference Indonesia, Malaysia, Bangladesh and Ireland

Abstract

Data security is becoming common issue in communication for professional companies today. How the data can be kept secret and can not be hacked by the third party. This application offer data security for text, document, and excel files. Sender system takes binary file from these input, encrypts it using International Data Encryption Algorithm (IDEA). Strength of this algorithm is in its 8,5 rounds process, and 128-bit key. Data is inserted with unique Digital Signature (DS) to signing it before. Output of this process is textfile, wich will be sent to receiver. System in the receiver generates decrypt sub-key, decrypts the text file to get back the original file. The result of this research is decryption accuration for text file is 100%, for document and excel file is 86,67%. Avalanche Effect (AE) value is between 49,32% – 50,77%. This application can enhance security in data communication.