Transaction method and device based on blind signature
A transaction method and blind signature technology, applied in the computer field, can solve problems such as security problems in the transaction process, and achieve the effect of achieving protection, avoiding security problems and improving security.
Active Publication Date: 2022-04-26
BEIJING WODONG TIANJUN INFORMATION TECH CO LTD
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Problems solved by technology
[0004] However, eavesdroppers can obtain the private information of both parties to the transaction based on the address information, which leads to security problems in the transaction process
Method used
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[0086] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0087] First, the concept of blockchain involved in the present invention is explained.
[0088] Blind signature is a way to sign a message, which allows the message sender to blind the original message first, and then let the signer sign the blinded message, and finally the message sender performs the blinding process according to the deblinding ...
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Embodiments of the present invention provide a blind signature-based transaction method and device. The method includes: the payment client performs blinding processing according to transaction service parameters and signature data, and obtains a blinding result. The payment client sends a first signature request to the currency providing node. The currency providing node receives the first signature request sent by the payment client, signs the blinding result, and obtains the first signature result. The currency providing node sends the first signature result to the payment client. The payment client receives the first signature result sent by the currency providing node. The payment client deblinds the first signature result, obtains the second signature result, and sends the second signature result and the signature data to the payment client. The receiving client sends the second signature result and signature data to the currency providing node. The currency providing node completes the transaction after the signature data and the second signature result are verified, thereby improving the security of the transaction.
Description
technical field [0001] The embodiments of the present invention relate to computer technology, and in particular to a blind signature-based transaction method and device. Background technique [0002] Blockchain is a de-intermediary database. In the process of transactions based on blockchain, blockchain provides a publicly visible, tamper-resistant, and decentralized system for both parties to the transaction. [0003] In the existing technology, when a transaction is based on the blockchain, the two parties to the transaction upload the transaction-related information including the address information of the transaction parties to the blockchain, and the nodes in the blockchain verify the transaction according to the transaction-related information. After the verification is passed The control transaction is completed. [0004] However, eavesdroppers can obtain the private information of both parties to the transaction based on the address information, which leads to secu...
Claims
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IPC IPC(8): G06Q20/38G06Q20/40G06Q40/04
CPCG06Q20/3825G06Q20/4014G06Q40/04G06Q40/00G06Q30/06G06Q20/401G06Q2220/00G06Q20/02G06Q20/0655G06F21/64H04L9/3257H04L2209/56H04L9/50H04L63/12G06Q20/065G06Q20/389H04L9/088H04L9/30
Inventor 张林黄海泉孙海波
Owner BEIJING WODONG TIANJUN INFORMATION TECH CO LTD