Portal de Periódicos da CAPES

CRYPTOGRAPHIC ALGORITHM FOR DEFENDING INFORMATICS TEST RESPONSES

2018; Volume: 28; Issue: 4 Linguagem: Inglês

10.35120/kij28041361i

2545-4439

Ilhan Istikbal Ibryam, Byulent Mustafa Mustafa, Atti Rashtid Mustafa,

Information Systems and Technology Applications

With the introduction of Information Technology in educational process we need more often to use electronic evaluation. The examples of test variants in the secondary school are often prepared with the help of word processing editors as WordPad that has good opportunities for elementary text formatting. Another part of the teachers often use Microsoft Word when preparing their tests. It is true that Microsoft Word has much more editing and formatting instruments than WordPad. For access to electronic educational resources suggested by the school teachers two or more computer networks are built (teachers' and learners'). Using these networks and their access rights, each user, learner or teacher, has the opportunity to add files and directories into the school database (DB). Learners can add files with the exercises they have done during their classes. Teachers suggest through the database the electronic lessons they have developed. At the end of each unit each teacher prepares an electronic test. In it there are described the evaluation criteria depending on the number of points the student has gathered through correct responses. In most cases we notice that in the teachers' network files with the responses of the tests are added later on. Not always the means for defence offered by the system administrators at the school can guarantee the safety of our files and more exactly the manipulation of the answers of the electronic forms of check up. Aiming at more effective defence of the text files, this article views an algorithm created by us for cryptographic defence of text files and it's application in secondary school. The effective use of cryptographic information defence minimises the opportunity to decipher the coded information aiming at its misuse by the learners. Providing safe defence against unsanctioned access in computer communication is a complex and extensive task which is solved by means of a set of measures of organisation and programme-technical character. The defence of the process of submitting data requires utmost attention because it concerns the most vulnerable and accessible for violation points in the communication systems.