Method for identifying integrity of transaction information

Abstract

The invention provides a method and a device for identifying integrity of transaction information. The method comprises steps that a terminal device receives a transaction instruction sent by a host and analyzing the transaction instruction so as to obtain a first information verification code and to-be-verified transaction information; blocking the to-be verified transaction information so as toobtain transaction information blocks, according to the first secret key, generating a third secret key, according to a second secret key, generating a fourth secret key, and according to the transaction information blocks, the first secret key, the second secret key, the third secret key and the fourth secret key, carrying out calculation so as to generate a transaction information code; judgingwhether the transaction information code matches the first information verification code, if yes, determining that the transaction information is complete, executing the transaction instruction and returning a transaction result to the host and finishing; or else, determining that the transaction information is not complete, rejecting execution of the transaction instruction, returning an error code to the host and finishing the execution. In this way, according to the to-be-verified transaction information, to-be-verified trade information is subjected to processing for many times in a calculation process of the verification code, the important data in the transaction information is quite safe in the verification process.

Description

technical field [0001] The invention relates to the field of information security, in particular to a method for authenticating the integrity of transaction information. Background technique [0002] With the development of information technology, people pay more and more attention to information security. For example, the upper computer and the terminal equipment encrypt the communication data and share the key to ensure information security, and the server guarantees information security by verifying the password authentication transmitted by the network client. , in the existing technology, the communication data in the communication process of the two parties generally involves important data, such as transaction amount, user name, password, etc., and these important data will be stored in the transaction information. Once the transaction information is illegally intercepted, it will be given to the user. interests bring security risks. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

[0002] With the development of information technology, people pay more and more attention to information security. For example, the upper computer and the terminal equipment encrypt the communication data and share the key to ensure information security, and the server guarantees information security by verifying the password authentication transmitted by the network client. , in the existing technology, the communication data in the communication process of the two parties generally involves important data, such as transaction amount, user name, password, etc., and these important data will be stored in the transaction information. Once the transaction information is illegally intercepted, it will be given to the user. The interests of the security risks

Images