Abstract
With the increasing interconnection of computer networks and sophistication of cyber-attacks, Cryptography is one way to make sure that confidentiality, authentication, integrity, availability, and identification of data user can be maintained as well as security and privacy of data provided to the user. Symmetric key cryptography is a part of the cryptographic technique which ensures high security and confidentiality of data transmitted through the communication channel using a common key for both encryption and decryption. In this paper I have analyzed comparative encryption algorithms in performance, three most useful algorithms: Data Encryption Standard (DES), Triple DES (3DES) also known as Triple Data Encryption Algorithm (TDEA), and Advanced Encryption Standard (AES). They have been analyzed on their ability to secure data, time taken to encrypt data and throughput the algorithm requires. The performance of different algorithms differs according to the inputs.
Highlights
In recent years, the world has faced a major challenge in the field of information and communications technology
Shows the results obtained from running the simulation program using different data like text files, pdf files, word document, and images of different sizes are used to conduct (35) experiments, where a comparison of three algorithms Data Encryption Standard (DES), 3DES and Advanced Encryption Standard (AES) is performed
The results show the superiority of the 3DES algorithm over other algorithms in terms of the processing time
Summary
The world has faced a major challenge in the field of information and communications technology. Computer networks and Internet services are increasing daily, and our life has changed in many applications on the Internet: the growing of e-commerce, online banking services, e-government, payment of bills, and many applications that require a safe environment that serves the private and public sectors. To transfer data through the internet or any public network, there are many security aspects and applications, from secure commerce and payments to private communications and passwords protection. One of those safest aspects of cryptography is an essential tool for protecting sensitive data. There is an urgent need to use cryptography to link the world via open networks, where networks are used to transfer information electronically, between ordinary people or private, public organizations, military and civilian. Cryptography is widely used to convert information into incomprehensible codes by government agencies and intelligence around the world, so, the secure transmission of messages forms online or offline [4]
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