Information safety transmission device and method based on homomorphic encryption and storage method

An information security and homomorphic encryption technology, applied in the fields of Internet of Vehicles, information interaction, and encryption, can solve the problems of increasing information security risks and frequent information transmission, and achieve the effect of ensuring storage security, resisting adversary attacks, and ensuring transmission security.

Inactive Publication Date: 2018-02-09
NANJING AUTOMOBILE GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase of T-BOX functions means that the information transmission between the car and the outside world is more frequent, which greatly increases the risk of information security

Method used

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  • Information safety transmission device and method based on homomorphic encryption and storage method
  • Information safety transmission device and method based on homomorphic encryption and storage method
  • Information safety transmission device and method based on homomorphic encryption and storage method

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Embodiment 1

[0038] Below will combine the appended in the embodiment of the present invention Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the present invention.

[0039] First, two-way authentication

[0040] In order to ensure that T-BOX and TSP can authenticate each other, RSA encryption algorithm or HMAC MD5 encryption algorithm can be used. Assume that T-BOX is the sender and TSP is the receiver, where R1 and R2 represent a set of random numbers sent to each other by T-BOX and TSP, and the functions f(R1) and f(R2) respectively represent the cryptographic algorithm.

[0041] RSA encryption authentication: T-BOX gives a set of random numbers, encrypts them with the public key of TSP, and adds the random number R1 to the front of the result of RSA encryption and sends it to TSP. TSP decrypts with its own private key, and after the verification is successful, it is verified again with the same method.

[0042] HMAC MD5 encryption authen...

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PUM

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Abstract

The invention relates to an information safety transmission method based on homomorphic encryption, and the method comprises the following steps: 1, enabling a service enjoying side to encrypt to-be-processed data, and transmitting an obtained ciphertext to a service provider; 2, enabling the service enjoying side to provide a data processing method for the service provider, wherein the method isexpressed through a function f(); 3, enabling the service provider to process the encrypted data through the function f(), and transmitting a processing result to the service enjoying side; 4, enabling the service enjoying side to carry out the decryption calculation after receiving the data returned by the service provider, and finally obtaining an expected result. The method does not leak any privacy content of original data of a user during the processing of the encrypted data, and guarantees the transmission safety and storage safety of data. The method prevents external attacks, and avoids the sending of wrong instructions.

Description

technical field [0001] The invention relates to an information security transmission and storage method based on homomorphic encryption, which belongs to the field of communication interaction security based on homomorphic encryption, and in particular relates to the fields of Internet of Vehicles, encryption, information interaction, and the like. Background technique [0002] T-BOX in-vehicle terminal is an important part of the contemporary connected car in-vehicle system. With the rapid development of automotive electronics and intelligent network technology, T-BOX is evolving in the direction of intelligence and network connection. It is mainly responsible for uploading the stored information of the ECU of the vehicle to the TSP, realizing the interconnection between the information in the vehicle and the TSP, and providing infotainment services such as navigation, news and weather for the passengers in the vehicle. The increase of T-BOX functions means that the inform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/00
CPCH04L9/008H04L63/0442H04L63/0869
Inventor 刘光晟张林翁桃林苗斌
Owner NANJING AUTOMOBILE GROUP CORP
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