REVIEWING AND APPLYING SECURITY SERVICES WITH NON-ENGLISH LETTER CODING TO SECURE SOFTWARE APPLICATIONS IN LIGHT OF SOFTWARE TRADE-OFFS
Kamel Hussein Rahouma
Department of Electrical Engineering
Faculty of Engineering, Minia University
Important software applications need to be secured by choosing the suitable security services. In this paper, a shopper program is designed and implemented using VB.NET to follow up the movement of goods in the store and the shopping place. The program uses five files to store: the passwords, the information of goods in the store and the shopping place. A literature review is carried out to collect the information system and software trade-offs. The applied security services are then analyzed in light of these trade-offs. For security purposes, files and folders are hidden and files are set to Read-Only. The files' contents are encrypted by applying XOR operation with a random key generator. The file's contents are hashed and signed by the user to protect the integrity and authenticity of the files' contents. The applied security services do not result in much complexity and thus it does not affect the system resources. The program usability is easy to handle. The software is not freely available and in case of hunting a copy, it would be hard to run it without disclosing the needed keys. Applying the Arabic letter coding adds more credit to the program usability and availability.
Keywords: Software Protection; Security services; Encryption/decryption; Hashing; Digital signature