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First-price sealed transaction method based on Bitcoin agreement

A transaction method, Bitcoin technology, applied in encryption devices with shift registers/memory, transmission systems, instruments, etc., can solve the problems of fairness and impartiality, vulnerable to criticism, untrustworthy third parties, unforgeability, etc. The effect of guaranteeing immutability, transaction security, and guaranteeing integrity

Inactive Publication Date: 2017-11-07
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(5) Unforgeability: In bidding, bidders' bids cannot be forged
Therefore, the current big data transaction methods have the following disadvantages: there are untrusted third parties, poor confidentiality, fairness and impartiality are easily criticized, low security and high risks

Method used

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  • First-price sealed transaction method based on Bitcoin agreement
  • First-price sealed transaction method based on Bitcoin agreement
  • First-price sealed transaction method based on Bitcoin agreement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1. A first-price sealed transaction method based on the Bitcoin protocol, such as figure 2 shown, including the following steps:

[0042] (1) Preparation stage:

[0043] Seller A publishes relevant information about the big data to be traded (the item to be sold by seller A is big data, and seller A must first give information such as the name, type, and scale of the big data); the big data refers to the big data to be traded. data;

[0044] Seller A and Bidder B i Select a key pair; the key pair includes a public key and a private key; the function of the key pair is: first to sign the transaction generated by itself, and second to verify whether the transaction signature is true;

[0045] Seller A and Bidder B i Submit a deposit;

[0046] (2) Bidding stage:

[0047] Seller A commits to reserve price C, bidder B i Bid price b i promise;

[0048] (3) Bid opening stage:

[0049] Seller A / Bidder B i Open the reserve price C / mark price b on time within...

Embodiment 2

[0076] Example 2. A first-price sealed transaction method based on the Bitcoin protocol, specifically as follows:

[0077] Participants in this program:

[0078] (1) Bidder B: Suppose there are n bidders B 1 ,...,B n ;

[0079] (2) Seller A: Provide the data and reserve price to be auctioned;

[0080] (3) Electronic bulletin board SBB: SBB is controlled by seller A and used to publish data description information and auction rules. SBB is visible to everyone, and the content on SBB seen by everyone is the same, and the data cannot be deleted.

[0081] The details are as follows:

[0082] (1) Preparation stage

[0083] a) Seller A announces on SBB the description information and auction rules (auction time, auction method) of the big data that is ready to be traded (seller A wants to sell data, so seller A will publish information on the next data for sale on SBB) Wait).

[0084] b) Seller A numbers the big data block and uses the Merkle tree calculation to obtain the h...

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Abstract

The invention discloses a first-price sealed transaction method based on the Bitcoin agreement. The method comprises the following steps: (1) the preparation stage, a vendor A publishes related information of big data of a to-be-performed transaction, the vendor A and a bidder B select a secret key pair, and the vendor A and the bidder B submit guarantee deposits; (2) the bidding stage, the vendor A gives a commitment for a floor price C, and the bidder B gives a commitment for a bid price b; (3) the bid opening stage, the vendor A / bidder B timely opens the commitment for the floor price C / bid price b within time tlock=t and takes the corresponding deposit back; (4) the bid verification stage, the vendor A publishes an address and a public key of a winner in the bidder B; and (5) the auction payment stage, the winner pays the bidden bid price. The method is advantageous in that an untrusted third part is removed, confidentiality is good, and the method is justice, fair, safe and risk-free.

Description

technical field [0001] The invention relates to a big data transaction method, in particular to a first-price sealed transaction method based on the Bitcoin protocol. Background technique [0002] In recent years, with the widespread popularization and application of big data, the value of data resources has gradually been valued and recognized, and the demand for data transactions is also increasing. As a new type of resource, big data has uncertainty, scarcity, and diversity in its value, and there is asymmetric information between buyers and sellers in big data transactions. Therefore, it is very important to correctly evaluate the price of big data. At present, big data transactions are divided into three modes: protocol transactions, auction transactions, and collective transactions. The auction transaction mode can transfer the right to use data to the hands of a few people, which guarantees the interests of the seller and can also take into account market principles....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q30/08H04L9/06H04L9/32
CPCG06Q30/08H04L9/0643H04L9/3226
Inventor 尹鑫王海龙田有亮
Owner GUIZHOU UNIV
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