Unlock instant, AI-driven research and patent intelligence for your innovation.

Key update method and device for unattended terminal

A key update and key technology, which is applied in the field of key update of unattended terminals, can solve the problems of poor security and easy to read keys, so as to improve security, improve security and management efficiency, reduce The effect of the risk of keys being read and stolen

Active Publication Date: 2020-04-21
SHENZHEN ZHENGTONG ELECTRONICS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a key update method and device for an unattended terminal, aiming to solve the problem that the existing key technology in the self-service terminal shares and downloads the key, which makes the key easy to be read and poor in security. The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Key update method and device for unattended terminal
  • Key update method and device for unattended terminal
  • Key update method and device for unattended terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The main solution of the embodiment of the present invention is: by injecting and storing the secret pair and secret value when the components are initialized, the key management center issues an update command for each time slot, and the key data is carried in the update command issued by the key management center , the component updates the stored secret information according to the key data. The risk of the key being read and stolen is reduced, the security of the key is improved, and the security and management efficiency of the communication between the component and the unattended terminal are improved.

[0053] Existing key technology has the problems that multiple components in the self-service terminal share and download the key, which leads to the key being easily read out, poor security and poor mana...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a secret key update method of an unattended terminal. The method comprises that a terminal component receives a secret key update instruction sent by a secret key management center at each time slot; secret key data is extracted from the update instruction; a new secret key RH' is obtained from the secret key data and own information of the component according to a secret key decryption formula; a new secret key FH' is obtained by a preset algorithm through calculation; a secret key pair RH and FH is updated according to the new secret key RH' and secret key FH'; and the sum of the RH' and FH' is taken as a new working secret key. The invention also discloses a secret key update method of the unattended terminal. According to the method and the device, the risk that the secret key is read and stolen is reduced, the security of the secret key and the management efficiency of the secret key are improved, and the security of the communication between the component and the unattended terminal is improved.

Description

technical field [0001] The invention relates to the technical field of terminal key management, in particular to a key update method and device for an unattended terminal. Background technique [0002] With the development of society, various terminals such as the financial industry, immigration, hospitals, and retail can be seen everywhere, bringing many convenient services to life and work. With the increase of people's security awareness, the security of terminal information in the financial industry has also received more and more attention. General terminals control all kinds of external components through the industrial control motherboard. The external sensitive components related to financial services are often the first choice of attackers. For unattended terminal equipment, attackers have relatively sufficient time to attack equipment components. , it is easier to steal and tamper with communication information. For example, when the personal password (PIN) is en...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/0891
Inventor 秦云川万新
Owner SHENZHEN ZHENGTONG ELECTRONICS