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An improved solution for increasing safety of RSSP-II protocol

A protocol security and security technology, which is applied in the field of secure communication between railway system equipment and railway signal system, can solve problems such as potential safety hazards and insufficient protocol security, and achieve the goals of preventing further damage, improving robustness, and ensuring flexibility Effect

Active Publication Date: 2014-11-05
安捷光通科技成都有限公司 +1
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Problems solved by technology

[0005] The purpose of the present invention is to propose a method for effectively improving the security of the RSSP-II protocol for the deficiencies in the security of the existing RSSP-II protocol, thereby solving the potential safety hazards in the current RSSP-II protocol, and ensuring the safety between equipment in the railway signaling system. secure transmission of messages

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[0039] The present invention will be further described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0040] The present invention mainly aims at the safety of the RSSP-II protocol in the railway signaling system, introduces a block cipher algorithm and a group cipher work mode selection negotiation mechanism, adds a block cipher algorithm list and a block cipher work mode list; in the block cipher work mode, except authentication In addition to the mode, an authentication encryption mode with associated data is also introduced as an enhanced security mode; the maximum number of messages allowed for a single secure connection is limited; and the judgment of the content of the received package is strengthened.

[0041] The block cipher algorithm in the block cipher algorithm list is selected to meet the following conditions: the algorit...

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Abstract

The present invention relates to an improved solution for increasing the safety of an RSSP-II protocol of a railway communication signal system, and the solution mainly includes the following aspects: introducing a block cipher algorithm and a block cipher working mode selection and negotiation mechanism; adding a block cipher algorithm list and a block cipher working mode list; in the block cipher working mode, besides an authentication mode, further introducing an authentication and encryption mode with associated data as an enhanced safe mode; restricting a maximum allowable message number for a single safe connection; and enhancing the judgment of contents of a received package. The solution of the present invention may hopefully improve the safety of the current railway system.

Description

technical field [0001] The invention relates to an improved scheme for improving the security of the RSSP-II protocol in a railway signal network, belonging to the field of railway signal systems, in particular to the field of safe communication between railway system equipment. Background technique [0002] Security communication plays a vital role in the railway signaling system. Once the communication signals in the railway are monitored, tampered with or even forged by attackers, it will cause the failure of the railway signaling system, and even lead to train operation accidents. The people have brought immeasurable losses. In view of this, the RSSP-II (Railway Signal Security Protocol) protocol is adopted in the railway signal system to ensure the secure communication between key equipment of the railway system. The RSSP-II protocol specifies the functional structure of safety-related information exchange between signaling safety devices through closed or open network...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/00
Inventor 闫连山郭伟崔允贺李赛飞潘炜郭进
Owner 安捷光通科技成都有限公司
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