Data encryption transmission initialization, sending and receiving devices and systems of TRDP protocol

A data encryption and sending device technology, which is applied to receiving devices and systems, data encryption transmission initialization, and sending fields, can solve problems such as interference and low security, and achieve the effects of enhancing security, ensuring security, and ensuring stability
CN111147479AActive Publication Date: 2020-05-12西安云维智联科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
西安云维智联科技有限公司
Publication Date
2020-05-12

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Abstract

The invention discloses data encryption transmission initialization, sending and receiving devices and systems based on a TRDP protocol, and the devices and systems achieve the enhancement of the network safety on the basis that the standard TRDP protocol is not changed, and are compatible with an original system, realize a security protocol from four elements of time, source, content and sequenceof the data frame. The devices and the systems provided by the invention support an enhanced security protocol, and can deal with malicious attacks such as data tampering, message playback, identitypretending and the like; the source is confirmed through implicit identity authentication; content correctness is ensured through CRC check; a sending end time scale is added in a data frame format, and a receiving end ensures the correctness of sending time by comparing the time scale.
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Description

technical field

[0001] The invention relates to a data encrypted transmission system, in particular to a device and system for initializing, sending and receiving data encrypted transmission of the TRDP protocol. Background technique

[0002] The Ethernet standard IEC61375-3-4-2014 stipulates the standard of the Ethernet communication network (Ethernet Consist Network ECN) in the train communication network (Train communication network TCN). The main reason for the formulation of this standard is that the data volume of train communication has increased dramatically at present, and the traditional train bus cannot meet the transmission of large data volumes, so the use of Ethernet communication can meet the data transmission requirements. For example, car broadcasting system, video system, downloading firmware program, etc., because of its advantages in price compared with MVB, lower cost, faster speed, larger data volume, etc., it will become an important direction for the ...

Claims

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