The main properties of electronic document protection from falsifications

In connection with the development of information technologies and computer data networks the systems of electronic document management become widely implemented. However, an important obstacle to the introduction of electronic documents has a number of issues related to the security of information systems of electronic documents. The tools of information protection in order to enhance the protection of electronic documents have been researched. Achieving of this goal involves: the analysis of possible attacks on information resources of electronic documents¸ the study of modern steganographic and cryptographic methods of information security, the possibility of building of a comprehensive system of electronic documents protection. The existing mechanisms of information security can not fully solve a number of problems specific to electronic documents. Thus, it becomes relevant and contemporary task of research opportunities by means of methods and models for electronic documents protection, using advanced cryptography and steganography tools. The development of the system of electronic documents protection provides the following basic steps: the analysis of the basic properties and functions of electronic documents;the classification of threats to information security;the research of requirements for information security;the identification and development of mechanisms to protect information.Most attacks on information are carried out by means of unauthorized access to information resources. In the article the model of access Take-Grant, whose rules allow to control the access to electronic documents, is considered. Since absolute control of the access to system resources is not possible, the protection of electronic documents can be used by means of cryptography and steganography. Digital watermarks are used in documented information in order to copyright protection. By means of cryptography one can protect the information through encryption or electronic digital signature. Electronic digital signature ensures the integrity of the document, the protection against forgery and guarantees authorship. The safety of information during its transfer by open channels of communication can be provided by the methods of cryptography and steganography. However, given that none of these areas at this stage of the development can not solve all issues related to the protection of information in the systems of electronic document management, the providing of information security of electronic documents is possible only in the conditions of complex use of cryptography and steganography remedies. The practical value of the study is the ability to use the results for further development of new and improvement of existing systems of electronic documents protection