CN108898729A - A kind of fair winners' announcement in lottery method based on block chain - Google Patents
A kind of fair winners' announcement in lottery method based on block chain Download PDFInfo
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- CN108898729A CN108898729A CN201810447361.9A CN201810447361A CN108898729A CN 108898729 A CN108898729 A CN 108898729A CN 201810447361 A CN201810447361 A CN 201810447361A CN 108898729 A CN108898729 A CN 108898729A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C15/00—Generating random numbers; Lottery apparatus
- G07C15/006—Generating random numbers; Lottery apparatus electronically
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Abstract
The fair winners' announcement in lottery method based on block chain that the invention discloses a kind of, belongs to technical field of data processing.The present invention mainly comprises the steps of：Regulation is announced the winners in a lottery the time；It carries out six Hash calculations and obtains median；Median is carried out six red ball numbers are calculated；It carries out a Hash calculation and obtains blue ball number.Fully transparent to consumer the present invention is based on block chain technology, anyone can calculate winning results according to block cryptographic Hash；Based on block chain technology, decentralization, and the investment of any equipment of announcing the winners in a lottery is not needed；Result of announcing the winners in a lottery is based on unknown block and carries out operation, and has the calculation power of bit coin to be guaranteed, any link for participating in lottery ticket can not all practise fraud, and announces the winners in a lottery even issue of lottery side also can not predict or set as a result, winners' announcement in lottery process full disclosure, is supervised convenient for user；Result of announcing the winners in a lottery completely random, the probability that each number generates is identical, avoids the drawback that cannot be identical of physical equipment.
Description
Technical field
The invention belongs to technical field of data processing, and in particular to a kind of fair winners' announcement in lottery method based on block chain.
Background technique
Block chain is made of one group of node based on point to point network, and each node safeguards data by executing common recognition mechanism
Consistency.Block chain connects data block to form block chain structure using the cryptographic Hash of block, makes the number in block
According to have can not distort, order-preserving, the characteristics such as traceable.Block chain knows together algorithm by distributed node to generate, update and deposit
Data are stored up, can achieve the function of decentralization.Block chain is stated and transferring digital asset coverage by way of digital signature
The safety of data transmission and access.
Bit coin is the Typical Representative of block chain.Bit coin block contains block head and the transaction of some bit coin.One
The ident value of All Activity constitutes the leaf node of block Merkel Hash tree (Merkel Hash Tree) on a block,
The root node of Merkel's Hash tree is stored in block face in front, therefore All Activity has been bundled in together with block head.It is previous
The cryptographic Hash of a block head is stored in block in front, forms the chain structure of block.In chain new block by common recognition mechanism come
It generates, includes block degree of difficulty in each block, it can be with calculation block Hash target value to be achieved, in block by degree of difficulty
Include the random value field that can be filled, it is therefore an objective to by filling the field, so that the cryptographic Hash of block head is lower than target value.One
The cryptographic Hash of denier individual node discovery filling field back zone build is lower than target value, and the block is just sent to other nodes.When
After most of node receives this new block, this block is just added on chain, it includes All Activity can also verify
After be confirmed.
Due to the content of block fill part be it is uncertain, in bit coin the cryptographic Hash of next block be also can not
Prediction.Data in bit coin be it is open and clear, anyone can access poll bits coin block in bit coin network
The content of chain.Moreover, it is 9211434TH/s that bit coin, which calculates power, so far, have enough calculations try hard to keep demonstrate,prove data can not
Forgery property.
Classify by lottery fan's participation method, lottery ticket is broadly divided into draw lottery ticket, touches prize lottery ticket, guess lottery ticket and stake lottery ticket.
Wherein touching prize lottery ticket is a kind of instant lottery ticket, that is, touches and open, and prize content, which has been carried out, to be printed upon in lottery ticket, does not need to carry out public
It announces the winners in a lottery；Guess lottery ticket and stake lottery ticket be to be predicted by special object, be subject to predict object generate result, equally
It does not need to announce the winners in a lottery.Currently, since winners' announcement in lottery process is to be managed maintenance by issue of lottery side being supervised by notary public
It superintends and directs down and drawn numbers is determined by Lottery apparatus, result of announcing the winners in a lottery is announced by issue of lottery side.It is possible that there are notary public with
The case where issue of lottery side conspiracy deception consumer, occurs.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned the deficiencies in the prior art, a kind of fair winners' announcement in lottery based on block chain is provided
Method guarantees the complete of winners' announcement in lottery process using the unpredictability of the open and clear and following block of bit coin block chain
Probability that is complete open and clear and guaranteeing that number occurs is identical, and reduces the investment for equipment of announcing the winners in a lottery.The present invention mainly discusses lot cast
The method of announcing the winners in a lottery of lottery ticket, choose in draw lottery ticket one of the present invention represent twin color ball and discuss, the side of announcing the winners in a lottery of other lottery tickets
Method is similar with the method for announcing the winners in a lottery of above-mentioned lottery ticket.
Technical problem proposed by the invention solves in this way：
A kind of fair winners' announcement in lottery method based on block chain, includes the following steps：
Step 1. regulation is announced the winners in a lottery the time, at least one hour stops selling lottery ticket before announcing the winners in a lottery；
Step 2. adds filling using the cryptographic Hash of the block of the newest confirmation for time of announcing the winners in a lottery as input after cryptographic Hash
Data carry out six Hash calculations；Wherein, Hash calculation of every progress, filling data add 1；It obtains generating twin color ball number
6 cryptographic Hash；The remainder that 6 cryptographic Hash are converted to modulus 100 after decimal number is obtained into 6 medians；
Step 3. judges whether median is 0, if some median, is 0, then gives up the median, and change filler
According to obtaining new median using the operation that new cryptographic Hash carries out step 2；
If new median is still 0, change filling data recalculate new cryptographic Hash, until 6 medians not
It is 0；
6 medians are carried out modulus 33 and add 1 by step 4., and 6 red ball numbers are calculated；
If giving up one of number there are two identical numbers in 6 red ball numbers, re-starting step 2-
4 operation obtains new red ball number, and new red ball number is compared with other red ball numbers, is protected if different
It stays, then gives up the number if they are the same, repeat step 2-4, until finding 6 mutually different red ball numbers；
Step 5. is using the cryptographic Hash of block as input, and the addition filling data after the cryptographic Hash, utilizes filling data
New cryptographic Hash is calculated, which, which takes latter four of binary form and be converted to decimal number, adds 1 to obtain blue ball
Number.
The beneficial effects of the invention are as follows：
1. fully transparent to consumer the present invention is based on block chain technology, anyone can be according to block Hash
Value calculates winning results；
2. the present invention is based on block chain technology, decentralization, and do not need the investment of any equipment of announcing the winners in a lottery；
3. result of announcing the winners in a lottery of the invention is based on unknown block and carries out operation, and has the calculation power of bit coin to be guaranteed, any
The link for participating in lottery ticket can not all practise fraud, and announce the winners in a lottery even issue of lottery side also can not predict or set as a result, winners' announcement in lottery mistake
Journey full disclosure is supervised convenient for user；
4. result completely random of announcing the winners in a lottery of the invention, the probability that each number generates is identical, avoids physical equipment
Drawback that cannot be identical.
Specific embodiment
The present invention is further detailed below with reference to embodiment.
The fair winners' announcement in lottery method based on block chain that the present embodiment provides a kind of, includes the following steps：
Step 1. regulation announce the winners in a lottery the time, the time of announcing the winners in a lottery of twin color ball be on every Tuesdays, Thursday, Sunday 21 points 15 minutes, announce the winners in a lottery
At least one preceding hour stops selling lottery ticket, twin color ball to suspend sale of the time be 20 points at night of day of announcing the winners in a lottery；When announcing the winners in a lottery, in notary
After member seals sales data data up for safekeeping, and drawn numbers are determined by Lottery apparatus under its supervision；6 red are first shaken out when lot cast
Ball number, then shake out 1 blue ball number；By 1-33, totally 33 numbers are formed in red ball number area, and blue ball number area is by 1-
16 totally 16 numbers compositions；
Step 2. is using the cryptographic Hash of the block of the newest confirmation for time of announcing the winners in a lottery as input, if newest by the end of the time of announcing the winners in a lottery
The cryptographic Hash of the block of confirmation is Bhash；Addition filling data f, carries out six Hash calculations after cryptographic Hash；Wherein, it fills
The initial value of data is f=1, and Hash calculation of every progress fills data and adds 1；Obtain generating 6 Hash of twin color ball number
Value；
Six Hash calculations：s1=H (Bhash | | f), f=f+1, s2=H (Bhash | | f), f=f+1, s3=H
(Bhash | | f), f=f+1, s4=H (Bhash | | f), f=f+1, s5=H (Bhash | | f), f=f+1, s6=H (Bhash | |
F), f=f+1 obtains the cryptographic Hash s of 256 bits of binary form1, s2, s3, s4, s5, s6；
Wherein, | | it is connector, Hash calculation is that the binary value of random length is mapped as to shorter regular length
Binary value, this small binary value are known as cryptographic Hash；Hash function uses SHA256 algorithm, H in the present embodiment：0,
1}*→ { 0,1 }256, indicate that the binary value of random length is mapped as the binary value that length is 256 by hash function；
By the cryptographic Hash s of 6 binary forms1, s2, s3, s4, s5, s6Decimal form is converted to, difference modulus 100
Remainder obtains 6 medians：r1=s1Mod 100, r2=s2Mod 100, r3=s3Mod 100, r4=s4Mod 100, r5
=s5Mod 100, r6=s6Mod 100, wherein mod is modulo operation；
Step 3. judges whether median is 0, if some median is 0, gives up the median, and change filler
According to obtaining new median using the operation that new cryptographic Hash carries out step 2；
If new median is still 0, change filling data recalculate new cryptographic Hash, until 6 medians not
It is 0；
If r1, r2, r3, r4, r5, r6In there are ri=0 (i=1,2 ..., 6), then give up；Recalculate s7=H (Bhash |
| f), f=f+1, r7=s7Mod 100, s8=H (Bhash | | f), f=f+1, r8=s8Mod 100 ..., until finding 6
It is a for 0 median until；
6 medians are carried out modulus 33 and add 1 by step 4., and 6 red ball numbers are calculated；
Assuming that 6 medians for meeting condition are r1, r2, r3, r4, r5, r6；Calculate h1=r1Mod 33, h2=r2 mod
33+1, h3=r3Mod 33+1, h4=r4Mod 33+1, h5=r5Mod 33+1, h6=r6Mod 33+1, obtain 6 it is red
Chromosphere number；
If 6 red ball number h1, h2, h3, h4, h5, h6It is middle there are two identical numbers, then give up one of them number
Code, recalculates s7=H (Bhash | | f), f=f+1, r7=s7Mod 100, s8=H (Bhash | | f), f=f+1, r8=s8
New red ball number is calculated in the case where median is not 0 in mod 100 ..., by new red ball number and its
He is compared red ball number, retains if different, gives up the number if they are the same, repeat step 2-4, until finding 6
Until mutually different red ball number；It is assumed that 6 twin color ball numbers for meeting condition are h1, h2, h3, h4, h5, h6；
Step 5. is using the cryptographic Hash Bhash of block as input, and the addition filling data f after the cryptographic Hash, calculates l
=H (Bhash | | f), obtain the cryptographic Hash l of 256 bits of binary form；The rear tetrad for taking l, is denoted as m, by m
Decimal number is converted to, and calculates n=m+1, obtains the digital n that value range is 1~16, then n is blue ball number in twin color ball
Code.
A kind of fair winners' announcement in lottery method based on block chain provided by the present invention is described in detail above.This
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, can be with several improvements and modifications are made to the present invention, these improvement and modification are also fallen
Enter in the protection scope of the claims in the present invention.
Claims (5)
1. a kind of fair winners' announcement in lottery method based on block chain, which is characterized in that include the following steps：
Step 1. regulation is announced the winners in a lottery the time, at least one hour stops selling lottery ticket before announcing the winners in a lottery；
Step 2. adds filler using the cryptographic Hash of the block of the newest confirmation for time of announcing the winners in a lottery as input after cryptographic Hash
According to carrying out six Hash calculations；Wherein, Hash calculation of every progress, filling data add 1；It obtains generating the 6 of twin color ball number
A cryptographic Hash；The remainder that 6 cryptographic Hash are converted to modulus 100 after decimal number is obtained into 6 medians；
Step 3. judges whether median is 0, if some median is 0, gives up the median, and change filling data, benefit
New median is obtained with the operation that new cryptographic Hash carries out step 2；
It is still 0 if new median, then changes filling data and recalculate new cryptographic Hash, until 6 medians are converted to ten
Modulus remainder is not 0 after system；
6 medians are carried out modulus 33 and add 1 by step 4., and 6 red ball numbers are calculated；
If giving up one of number there are two identical numbers in 6 red ball numbers, re-starting step 2-4's
Operation obtains new red ball number, and new red ball number is compared with other red ball numbers, is retained if different,
Then give up the number if they are the same, repeat step 2-4, until finding 6 mutually different red ball numbers；
Step 5. is using the cryptographic Hash of block as input, and the addition filling data after the cryptographic Hash, is calculated using filling data
New cryptographic Hash is obtained, which, which takes latter four of binary form and be converted to decimal number, adds 1 to obtain blue ball number.
2. the fair winners' announcement in lottery method according to claim 1 based on block chain, which is characterized in that provided in step 1
Announce the winners in a lottery the time, the time of announcing the winners in a lottery of twin color ball be on every Tuesdays, Thursday, Sunday 21 points 15 minutes, before announcing the winners in a lottery at least one hour stop
Sell lottery ticket, twin color ball to suspend sale of the time be 20 points at night of day of announcing the winners in a lottery.
3. the fair winners' announcement in lottery method according to claim 1 based on block chain, which is characterized in that step 2 it is specific
Step is：Using the cryptographic Hash of the block of the newest confirmation for time of announcing the winners in a lottery as input, if by the end of time of announcing the winners in a lottery newest confirmation
The cryptographic Hash of block is Bhash；Addition filling data f, carries out six Hash calculations after cryptographic Hash；Wherein, data are filled
Initial value is f=1, Hash calculation of every progress, and filling data add 1；Obtain generating 6 cryptographic Hash of twin color ball number；
Six Hash calculations：s1=H (Bhash | | f), f=f+1, s2=H (Bhash | | f), f=f+1, s3=H (Bhash | |
F), f=f+1, s4=H (Bhash | | f), f=f+1, s5=H (Bhash | | f), f=f+1, s6=H (Bhash | | f), f=f+
1, obtain the cryptographic Hash s of 256 bits of binary form1, s2, s3, s4, s5, s6；
Wherein, | | be connector, Hash calculation be the binary value of random length is mapped as the two of shorter regular length into
Value processed, this small binary value are known as cryptographic Hash；Hash function uses SHA256 algorithm, H in the present embodiment：{ 0,1 }*→
{ 0,1 }256, indicate that the binary value of random length is mapped as the binary value that length is 256 by hash function；
By the cryptographic Hash s of 6 binary forms1, s2, s3, s4, s5, s6Decimal form is converted to, respectively the remainder of modulus 100
Obtain 6 medians：r1=s1Mod 100, r2=s2Mod 100, r3=s3Mod 100, r4=s4Mod 100, r5=s5mod
100, r6=s6Mod 100, wherein mod is modulo operation.
4. the fair winners' announcement in lottery method according to claim 2 based on block chain, which is characterized in that step 4 it is specific
Step is：
6 medians are carried out modulus 33 and add 1 by step 4., and 6 red ball numbers are calculated；
Assuming that 6 medians for meeting condition are r1, r2, r3, r4, r5, r6；Calculate h1=r1Mod 33, h2=r2Mod 33+1, h3
=r3Mod 33+1, h4=r4Mod 33+1, h5=r5Mod 33+1, h6=r6Mod 33+1 obtains 6 red ball numbers；
If 6 red ball number h1, h2, h3, h4, h5, h6Middle there are two identical numbers, then give up one of number, weight
New red ball number is calculated in the case where median is not 0 in the new operation for carrying out step 2-4, by new red ball
Number is compared with other red ball numbers, is retained if different, is given up the number if they are the same, repeats step 2-4, until
Until finding 6 mutually different red ball numbers.
5. the fair winners' announcement in lottery method according to claim 3 based on block chain, which is characterized in that step 5 it is specific
Step is：
Using the cryptographic Hash Bhash of block as input, and the addition filling data f after the cryptographic Hash, calculating l=H (Bhash | |
F), the cryptographic Hash l of 256 bits of binary form is obtained；The rear tetrad for taking l, is denoted as m, and m is converted to the decimal system
Number, and n=m+1 is calculated, the digital n that value range is 1~16 is obtained, then n is blue ball number in twin color ball.
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| CN111899410A (en) * | 2020-07-30 | 2020-11-06 | 中体彩科技发展有限公司 | Lottery game lottery-counting method and system |
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