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Data encryption and decryption transmission system and transmission method with configurable interface

A transmission system, encryption and decryption technology, applied in the field of data encryption, can solve the problems of data leakage, detection, interception, acquisition, modification, attack, etc., to achieve the effect of small impact, low resource occupation and high flexibility

Active Publication Date: 2021-02-12
TIANJIN JINHANG COMP TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current loading program is often stored in plain text, so during the transmission of the loaded data, there is a possibility of being acquired, modified, and attacked by unauthorized personnel, so certain protection measures need to be added
At the same time, data is connected through the bus between different processors. During the process of transmission and interaction, it may also be detected and intercepted in the bus transmission channel, resulting in data leakage, so protection is also required

Method used

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  • Data encryption and decryption transmission system and transmission method with configurable interface
  • Data encryption and decryption transmission system and transmission method with configurable interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Described external host computer processor adopts X86 processor, TI DSP processor, FPGA processor;

[0033] Described uplink transmission interface 2 adopts PCI interface, EMIF interface and UART interface;

[0034] The interface gating module 3 adopts MUX;

[0035] The encryption and decryption calculation unit 4 adopts the SM4 encryption algorithm module;

[0036] Described internal data bus 5 adopts AMBA bus;

[0037] Described downlink transmission interface 6 adopts EMC interface and UART interface;

[0038] The memory device adopts UART and NOR Flash memory chips;

[0039] A data encryption and decryption transmission system with configurable interface, the system uses FPGA as the realization platform, and its internal integration PCI interface, EMIF interface, UART interface, EMC interface, SM4 encryption algorithm, AMBA bus, MUX multiplexer and ARM CPU processor.

[0040] FPGA can adopt Zynq series XC7Z045 chip of Xilinx Company. The chip has a programmabl...

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Abstract

The invention discloses a data encryption and decryption transmission system with a configurable interface, comprising a transmission control and configuration unit, an uplink transmission interface, an interface gating module, an encryption and decryption calculation unit, an internal data bus and a downlink transmission interface; the transmission control and The configuration unit is respectively connected to the uplink transmission interface, the interface gating module, the encryption and decryption calculation unit, the internal data bus and the downlink transmission interface; the uplink transmission interface includes several different types of interface controllers; the interface gating module passes the uplink The transmission interface is connected with an external host computer processor; the encryption and decryption calculation unit is respectively connected with the interface gating module and the internal data bus; the downlink transmission interface includes several different types of interface controllers; The transmission interface is connected with an external storage device.

Description

technical field [0001] The invention belongs to the field of data encryption, in particular to a data encryption and decryption transmission system and transmission method with a configurable interface. Background technique [0002] In the industrial computer system, in order to process different data and signals, multiple processors including embedded CPU, FPGA, DSP and even general desktop CPU need to cooperate to realize system functions. These processors all need an external storage device for program loading after power-on. [0003] The current loading program is often stored in plain text, so during the transmission of the loaded data, there is a possibility of being acquired, modified, or attacked by unauthorized personnel, so certain protection measures need to be added. At the same time, data is connected between different processors through the bus. During the process of transmission and interaction, it may also be detected and intercepted in the bus transmission ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/0435H04L69/22
Inventor 周津付彦淇王晓璐何全
Owner TIANJIN JINHANG COMP TECH RES INST