Attack testing method and system of precision time synchronization protocol (PTP) clock

Abstract

The present invention discloses an attack testing system of a precision time synchronization protocol (PTP) clock. The system comprises a PTP main clock connected with an interval timer and a PTP network switch; a bagging tester connected with the PTP network switch, the PTP network switch also being connected with a network damage device; the network damage device also connected with an under-test PTP slave clock; and the under-test PTP slave clock also connected with the interval timer, wherein the interval timer is used for receiving and calculating a difference value between pulses per second sent by the PTP main clock and pulses per second sent by the under-test PTP slave clock, and determining the anti-attack capability of the under-test PTP slave clock according to the difference value. Another attack testing system of a PTP clock and an attack testing method of the PTP clock are also provided. With adoption of the system and the method provided by the present invention, the anti-attack capability of the PTP clock can be tested and judged, the PTP clocks can be improved by researchers according to test results, and under attack risks are reduced.

Description

technical field [0001] The invention relates to the technical field of Ethernet communication, in particular to a PTP clock attack testing method and system. Background technique [0002] Due to the deep root of Ethernet technology, Ethernet technology is widely used in the field of industrial automation, and people's demand for network equipment and technology is becoming more and more obvious. A new network precise time synchronization technology and products conforming to IEEE1588V2 Precision Time Synchronization Protocol (PTP, Precision Time Synchronization Protocol) began to be applied. Many fields such as electric power, communication, and transportation are using PTP technology to meet time synchronization requirements, and greatly improve the timing accuracy requirements, saving network resources. [0003] However, in the IEEE1588V2 standard, the standard only defines the types, parameter configurations, and application types of various protocol families; the standa...

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Problems solved by technology

[0003] However, in the IEEE1588V2 standard, the standard only defines the types, parameter configurations, and application types of various protocol families; the standard does not take into account the system risks and security issues faced by the protocol, and does not specify the final processor of time information. There is no requirement in the standard on how to deal with malicious packets sent from threatening devices

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