Quantum check transaction method based on block chain digital signature

Abstract

Provided is a quantum check transaction method based on a block chain digital signature. A quantum check generation module, a quantum check, a payment transfer module, a block chain, a block, a quantum key generation module, a quantum signature module, a digital signature and a quantum signature verification module are adopted. The method comprises the steps that: 1, the quantum key generation module distributes a quantum key for a quantum check; 2, a user A applies to the quantum check generation module for a quantum check; 3, the user A uses the quantum signature module to sign the quantum check; 4, a user B verifies the digital signature through the quantum signature verification module; 5, the payment transfer module completes quantum check payment; and 6, a quantum check payment account book is stored in the block chain. According to the method, the security and efficiency of check transaction can be ensured to the greatest extent in a trust-free network, the method has theoretical absolute security and quantum attack resistance, and the check account book stored in the block chain has traceability and tamper-proofing performance.

Description

technical field [0001] The invention relates to the fields of quantum encryption and block chain signatures, in particular to a quantum check transaction method based on block chain digital signatures. Background technique [0002] Check is an important financial settlement method, which is used in various transactions together with cash settlement and transfer settlement. With the rapid development of computers and economic level, the promotion and use of electronic checks in various enterprises, units and individuals is also constantly improving. So-called electronic checks are unconditional digital payment instructions issued by the customer to the payee. It can complete all the functions of traditional checks through the Internet or wireless access devices. In addition to the necessary payee's name, bank account number, amount and date, the check also contains encrypted information. The electronic check is sent directly to the payee by e-mail. The payee takes out the e...

AI Technical Summary

Problems solved by technology

Such electronic checks will be affected by the accuracy of uploaded image information and different parameters set by different banks, resulting in a low pass rate of system verification and a high return rate

After repeated verification failures, users will choose other payment methods, which reduces user experience

[0005] 2. The security of traditional electronic checks is not high, and it is easy to forge and tamper

The traditional centralized check architecture relies too much on the credibility of the central institution. If the third-party central institution is attacked, electronic checks are easily tampered with and forged

The security of the ledger of the centralized architecture depends entirely on the reliability of the central node, but the security and system vulnerabilities of the centralized architecture have always been difficult to be perfect

For the signature and verification process of checks, attackers may use some loopholes in the centralized architecture to tamper or forge checks, which will destroy the fairness of electronic check transactions and the order of currency circulation, making the ledger no longer reliable

[0006] 3. The efficiency of traditional electronic check processing is not high enough

After the user submits the check, the funds generally cannot be credited to the account immediately, but have to wait for two days or longer, which will affect the normal turnover of funds of individual enterprises

In addition, in the traditional centralized structure, the prompt payment period of electronic checks is too short, and the period is only ten days. In addition, the calculation methods of each local banking institution are not consistent, which may easily lead to bounced checks and check transaction failures.

[0007] 4. Traditional electronic check systems lack security against quantum attacks

However, the classic encryption and signature technology has no effective means to balance the security and efficiency of electronic checks. Improving security will inevitably reduce efficiency, and improving efficiency will inevitably reduce security.

So far, there is still no quantum check transaction method based on blockchain digital signature in the market

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