Description and Application of Network and Terminal Security Device Based on the Block Algorithm of Cryptographic Transformation of Information Using Random Keys

This article describes a device for protecting information that is transmitted over various telecommunications channels. The device protects networks and terminals uses a block algorithm for cryptographic transformation of information using random keys. Information protection device is designed for hardware, software or software-hardware implementation that meets the cryptographic requirements and by its characteristics provides the ability to protect confidential information in the network. The device also allows to protect user terminals from virus attacks in case of unauthorized access (hackers, viruses).The article also describes the possible areas of its practical application in different types of performance: telephony, data transmission over the Internet, identification systems, security systems, communication systems, protection of bank accounts and transactions, etc.