Implementation of Two Criteria to Evaluate the WhatsApp Encryption Algorithm (AES).

Abstract

WhatsApp has become more popular application for social networking on which people need to exchanging their personal and business related information. This information may contain confidential information that need to be secured from any third party access. Although the encryption on whatsapp is widely used nowadays, and made it very difficult for computer crime experts to find the user information and conversations, but there are serious problems while used this encryption as their performance and security. This research provides evaluation of the performance and security for Whatsapp encryption algorithms (AES). The performance measure of AES conducted in terms of encryption time, decryption time, CPU usage and memory usage for a different text size to measure the effect of the changing data size. The security measure conducted on whatsapp of how to access the encrypted WhatsApp conversations from android device and extract this conversations and decrypt it and convert it into human readable formats. This research using some tools as Microsoft Visual Studio.Net 2010 as front end which works in .Net framework version 2.0, Android debugging bridge, WhatsApp key/DB extractor and WhatsApp viewer. This research conclude that there are a large effect on the performance of Whatsapp encryption algorithms (AES) while changing data size on encryption time, decryption time, CPU usage and memory usage. also conclude that we can gain complete access to all encrypted information on WhatsApp and to all similar social networking applications such as viber and IMO.