Encryption control method and device capable of achieving tamper-proofing and repudiation-proofing by means of public key infrastructure (PKI)

Abstract

The invention provides an encryption control method and a device capable of achieving tamper-proofing and repudiation-proofing by means of public key infrastructure (PKI). The encryption control method and the device capable of achieving tamper-proofing and repudiation-proofing by means of the PKI are used for enabling data being transmitted to be encrypted by a sending end, wherein the data being transmitted includes initial encryption data and clear data. The encryption control method capable of achieving tamper-proofing and repudiation-proofing by means of the PKI comprises the following steps: (1) conducting a first encryption algorithm on the clear data, and enabling an algorithm result to be a first median; (2) conducting a second encryption algorithm on the initial encryption data and the first median, and enabling an algorithm result to be an encrypted value, and the encrypted value is sent to a corresponding receiving end by the sending end. The invention further provides an encryption control device capable of achieving tamper-proofing and repudiation-proofing by means of the PKI and a corresponding financial transaction processing system. According to the encryption control method and the device capable of achieving tamper-proofing and repudiation-proofing by means of the PKI, encryption processing is conducted on clear data and encryption data (initial encryption data) in a message to achieve encryption for a transaction message. Therefore, encryption scheme which is simple and easy to carry out can be utilized to achieve the purpose of tamper-proofing and repudiation-proofing for transaction data.

Description

technical field [0001] The present invention relates to an information transmission process, especially an information encryption and decryption process, in particular to an encryption control method and a corresponding control device for realizing anti-tampering and anti-repudiation using a public key mechanism. Background technique [0002] As a resource, information is of special significance to human beings due to its universality, sharing, value-added, processability and multi-utility. The essence of information security is to protect information resources in information systems or information networks from various types of threats, interference and destruction, that is, to ensure the security of information. With the development of the information age, people pay more and more attention to information security. Various passwords and authentication technologies begin to help people solve the interference received in the process of information transmission, such as eaves...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defect of using complex encryption devices to ensure transaction security in the prior art, the purpose of the present invention is to pro

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