Dragan Korać
Univerzitet u Beogradu – Fakultet organizacionih nauka
Keywords:
model, security, information, Biba model
Abstract
The trend of rapid development of digital technologies is creating the need for increased sharing of information among various organizations, institutions, corporations, etc. In that regard, it is critically to ensure adequate information security. Nowdays, there is a number of the security models that address diferrent aspects of information security. In this paper, a comprehensive overview and comparison of basic models of information security such as Bell-LaPadula, Biba, Take-Grant, Sea-View i Clark Wilson is given. Biba model is used as the basic model for comparison. Unlike other papers, these models are particularly treated. Their advantages and disadvantages are emphasised in detail. Several important challenges are identified on the basis of performed comparative analysis of basic models. One of these is that there is no perfect security model i.e., model that it covers all basic security aspects. Also, in this paper a brief review of basic principles of information security is given. Finally, in this paper a discussion of problems that appear in security models is shown, as well as proposals for their mitigating or overcoming.
