Under-chain anonymous payment channel method and system based on Mimblewimble
A payment channel and channel technology, applied in the field of information security, can solve the problems of restricting the wide application of technology, long transaction confirmation time, etc., and achieve the effects of preventing theft attacks, ensuring anonymity, and preventing attacks
Pending Publication Date: 2021-12-03
BEIHANG UNIV
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AI Technical Summary
Problems solved by technology
One is that miners still need to pay high fees to ensure that the transaction is recorded in the chain, and the other is that miners need to verify the zero-knowledge proof of the commitment and amount in the transaction order to ensure the authenticity of the transaction, which will lead to Long transaction confirmation time
These drawbacks limit the wide application of the technology
Method used
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[0019] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.
[0020] This application combines Mimblewimble privacy protection technology with lightning network, which can improve the scalability and transaction speed of blockchain while protecting the privacy of blockchain users. Any blockchain user using Mimblewimble technology can open an off-chain payment channel between the two through negotiation with the other party who often conducts transactions, and transfer a large number of transactions that originally needed to be carried out on the chain to off-chain. Only two transaction...
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The invention discloses an under-chain anonymous payment channel method and system based on Mimblewimble.The method comprises the steps: a channel opening step: determining the minimum amount of money to be stored, opening a payment channel through storing coins greater than the minimum amount of money into the channel, taking the part greater than the minimum amount of money as a random amount of money during deposit, and taking the part greater than the minimum amount of money as a random amount of money, wherein the random amount is deconstructed so as not to be expended; a channel state updating step: generating a pre-transaction according to the negotiated current round of transaction amount based on the transaction mode of the bottom layer Mimblewimble, generating a transaction based on the pre-transaction, performing transaction aggregation, and in the transaction aggregation process, aggregating the balance currently owned by the payee besides the pre-transaction generated by the payer and the transaction generated by the payee; and a channel closing step: closing the payment channel after the two transaction parties refund according to the current latest balance distribution state. According to the method, under the condition of ensuring anonymity, the expandability of the Bitcoin network is improved, and the transaction confirmation time and the transaction service charge are reduced.
Description
technical field [0001] This application relates to the field of information security technology, in particular to a Mimblewimble-based off-chain anonymous payment channel method and system. Background technique [0002] As a distributed data storage solution, blockchain has the characteristics of unforgeability, traceability, openness, transparency, and collective maintenance. It has been widely used in various industries in recent years. Bitcoin is a decentralized payment system proposed by Satoshi Nakamoto in 2008. As the most successful application of blockchain technology, Bitcoin has been attractive since its inception. However, the Bitcoin system can only process no more than 7 transactions per second. The transaction speed is slow and the confirmation time is long. There is an urgent need to increase the transaction speed of Bitcoin. At the same time, in order to verify the authenticity and correctness of each transaction, the blockchain stores every transaction betw...
Claims
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Login to View More IPC IPC(8): G06Q20/38G06Q20/40
CPCG06Q20/382G06Q20/405G06Q20/401
Inventor 关振宇张砺心白琳李大伟孙钰崔剑张英鹏李海花
Owner BEIHANG UNIV