Systems of identification authentication and encoding in maritime industry

Authentication systems of electronic data are used when it is necessary to confirm authenticity of the signature of the author of the document and integrity of the document transmitted through a network. For authentication of data the digital signature which represents rather small amount of the additional authenticating information transferred together with the signed text is used. Encryption systems of disk data are used when there is no opportunity to limit access for users to information media. Application of encryption systems of disk data does unavailable in a sense information for those users who have no key. Encryption systems of disk data can realize data transformations at the level of files or at the level of disks. The main strengths and weaknesses of the system are investigated for external and internal attacks from the perspective of reliability for the marine industry.