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Method and device for managing transaction key of security card

A technology of transaction key and management method, which is applied in the field of transaction key management, can solve problems such as loss of economic benefits of users, and achieve the effect of ensuring security

Inactive Publication Date: 2016-04-06
北京印天网真科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The most important thing for smart portable devices is to ensure the security of financial transactions. If the financial transaction data of smart portable devices leaks, it will directly cause losses to the economic interests of users.

Method used

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  • Method and device for managing transaction key of security card
  • Method and device for managing transaction key of security card
  • Method and device for managing transaction key of security card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A schematic diagram of the processing flow of a method for obtaining a transaction key of a security card provided by this embodiment is as follows: figure 1 As shown, the following processing steps are included:

[0021] Step 11. The security card first generates the public-private key pair of the user, and sends a PKCS#10 (Public-Key Cryptography Standards, public-key cryptography standard for certificate request) request carrying the above-mentioned user's basic information, user public key and other information to the financial platform. The user is the user of the aforementioned security card.

[0022] Step 12: After receiving the above PKCS#10 request, the financial platform sends a user certificate application request carrying the above user's basic information and user public key to the financial CA (certificate authority, certification center).

[0023] Step 13: After the financial CA receives the above-mentioned user certificate application request, it genera...

Embodiment 2

[0031] A schematic diagram of the processing flow of the method for using the transaction key of the security card provided by this embodiment is as follows: figure 2 As shown, the following processing steps are included:

[0032] Step 21. The security card extracts the ciphertext of the transaction key encrypted by the public key from the security area, and the security card uses the user's private key to decrypt the ciphertext of the transaction key encrypted by the public key to obtain the transaction key information. When the transaction key information is a plurality of transaction keys and an index corresponding to each transaction key, the security card selects a transaction key to be used from the plurality of transaction keys, and obtains the index of the transaction key.

[0033] Step 22. The security card uses the selected transaction key to perform 3DES-ECB (Triple Data Encryption Algorithm) encryption on the plain text of the transaction password to obtain the en...

Embodiment 3

[0040] The specific structural diagram of a security card transaction key management system provided by this embodiment is as follows: image 3 As shown, the following modules are included:

[0041] The financial platform 31 is used to obtain the user certificate of the user of the security card, extract the certificate public key in the user certificate, and send a transaction key application carrying the certificate public key and the basic information of the user to the financial encryption machine Request; send the encrypted transaction key information returned by the financial encryption machine to the security card;

[0042] The financial encryption machine 32 is configured to generate the user's transaction key information according to a set algorithm after receiving the transaction key application request, and use the certificate public key to encrypt the transaction key information, Send the encrypted transaction key information to the financial platform;

[0043] T...

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PUM

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Abstract

The embodiment of the invention provides a management method and device of a traction secrete key of a safety card. The method mainly comprises the following steps of: obtaining a user certificate of a user of the safety card by a financial platform; extracting a certificate public key in the user certificate; sending a transaction secrete key applying request carrying the certificate public key and basic information of the user to financial encryption equipment; generating transaction secrete key information of the user by the financial encryption equipment according a set algorithm; carrying out encryption on the transaction secrete key information by using the certificate public key; and sending the encrypted transaction secrete key information to the safety card through the financial platform. According to the management method and device disclosed by the embodiment of the invention, hardware safety equipment such as the financial platform, a financial CA, the financial encryption equipment is used; and an asymmetrical secret key encryption technology and a symmetrical secret key encryption technology are comprehensively utilized in a process of producing transaction secrete key applying request data of the safety card to reduce the risk grade of decoding the secret key to the lowest, so that the safety financial transaction data of the safety card is ensured.

Description

technical field [0001] The invention relates to the technical field of key management, in particular to a method and device for managing a transaction key of a safety card. Background technique [0002] With the development of science and technology, the users of smart portable devices continue to grow. Smart portable devices convert traditional financial transaction methods to mobile users, and it also has the characteristics of saving time, trouble, convenience, and easy operation. [0003] The most important thing for smart portable devices is to ensure the security of financial transactions. If the financial transaction data of smart portable devices leaks, it will directly cause losses to the economic interests of users. Therefore, it is necessary to develop a method for ensuring the security of financial transactions of smart portable devices. Contents of the invention [0004] Embodiments of the present invention provide a method and device for managing a transacti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08
Inventor 孙贵成李春陈燕
Owner 北京印天网真科技有限公司