CN110164021B - A kind of random lottery drawing method and equipment of application block chain - Google Patents
A kind of random lottery drawing method and equipment of application block chain Download PDFInfo
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Abstract
The present invention discloses a kind of random lottery drawing method based on block chain and device of drawing a lottery, comprising: prize drawing equipment initiates a transfer request on block chain, and transfer request includes: initiator address, recipient address and transfer amounts；Transfer request is used as prize drawing；Prize drawing equipment carries out Hash operation to transfer request, obtains the first cryptographic Hash, and obtains when previous round goes out total block number n out of block node；First cryptographic Hash divided by block number n is always gone out, is obtained corresponding first remainder m, and obtain when m-th of block in total block of previous round by equipment of drawing a lottery, and carries out block Hash operation to m-th of block, obtains the second cryptographic Hash；Second cryptographic Hash divided by default integer, is obtained corresponding second remainder by equipment of drawing a lottery；Second remainder is this prize drawing number；Default integer determines the numerical value change section of prize drawing number.Present invention can ensure that the randomness of prize drawing process, openly, it is fair and credible.
Description
Technical field
The present invention relates to block chains and prize drawing combination technology field, more particularly, to a kind of the random of application block chain
Lottery drawing method and equipment.
Background technique
Block chain is the novel of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm
Application model.Common recognition mechanism is that the mathematical algorithm established between different nodes and trust, obtain equity is realized in block catenary system.Area
Block chain is the Floor layer Technology of bit coin, as a database account book, records all transaction records.The characteristics of system is that have very
It is multiple respectively with node all over the world, each node can safeguard a set of identical database.Which results in maliciously distort
Data and its difficulty, loss of data is extremely rare, so that it is transparent to realize a justice, solves the platform of trust crisis.
Existing prize drawing technology is widely used in business activity, such as the movable prize drawing in market or gambling prize drawing, to inhale
Draw consumer's eyeball or repays the customers, the further participation enthusiasm for promoting lottery industry participant or commercially available people.Prize drawing
Technology is also applied to intra-company's activity, such as company's annual meeting or company set up Zhou Nianhui activity, with feedback employee, increase person
Company's collection body-sensing of work etc..Existing prize drawing mostly uses greatly the prize drawing of artificial or computer, and the randomness manually drawn a lottery is poor, and prize drawing process is not
It is transparent, therefore drawing outcomes may be by black-box operation, it is thus possible to there are unjustnesses.Computer prize drawing may due to prize drawing algorithm
Be tampered or by hacker's malicious attack, and draw a lottery mechanism can not transparence, therefore its drawing outcomes be also likely to be present it is unfair,
Situation of the injustice in, randomness difference.
Summary of the invention
In view of the drawbacks of the prior art, it is an object of the invention to solve existing prize drawing scheme randomness not ensureing, and
Due to prize drawing process not can guarantee it is all opaque, so there may be underground, inequitable technical problems.
To achieve the above object, in a first aspect, the present invention provides a kind of random lottery drawing method of application block chain, including with
Lower step:
Prize drawing equipment initiates a transfer request on block chain, and the transfer request includes: initiator address, recipient
Address and transfer amounts；The transfer request is used as prize drawing；
The prize drawing equipment carries out Hash operation to the transfer request, obtains the first cryptographic Hash, and obtain when previous
That takes turns out block node always goes out block number n；N is positive integer；
First cryptographic Hash is always gone out block number n divided by described by the prize drawing equipment, obtains corresponding first remainder m, with
And obtain when m-th of block in total block of previous round, and block Hash operation is carried out to m-th of block, obtain the second Kazakhstan
Uncommon value；M is the positive integer less than n；
Second cryptographic Hash divided by default integer, is obtained corresponding second remainder by the prize drawing equipment；Described second
Remainder is this prize drawing number；The default integer determines the numerical value change section of the prize drawing number.
Optionally, first cryptographic Hash is hexadecimal data；
First cryptographic Hash is always gone out block number n divided by described by the prize drawing equipment, obtains corresponding first remainder m, has
Body includes the following steps:
First cryptographic Hash is converted into corresponding decimal data by the prize drawing equipment；
The first cryptographic Hash that the prize drawing equipment will convert into decimal data always goes out block number n divided by described, is corresponded to
The first remainder m.
Optionally, second cryptographic Hash is hexadecimal data；
Second cryptographic Hash divided by default integer, is obtained corresponding second remainder, specifically included by the prize drawing equipment
Following steps:
Second cryptographic Hash is converted into corresponding decimal data by the prize drawing equipment；
The second cryptographic Hash that the prize drawing equipment will convert into decimal data obtains corresponding second divided by default integer
Remainder.
Optionally, when the default integer is 10, the prize drawing number changes in 0~9 range.
Optionally, when the default integer is 100, the prize drawing number changes within the scope of 00-99, wherein if more than second
When number is less than 10, then it will be exported after its ten zero paddings.
Specifically, the default integer is the summation of candidate number section number quantity, to ensure the number of having in all candidate prize drawings
It can be drawn.
Wherein, which can be applied to market activity prize drawing or company's annual meeting prize drawing, can set several
The first prize, second prize and third prize, every kind of awards correspond to a kind of prize.Repeat draw a lottery, can according to go out prize number sequence will
It is divided into one of awards, for example, first taking out third prize, then takes out second prize, finally takes out the first prize.Wherein, if drawing below
Number repeated with the number that is extracted into before, then extract again, it is all to guarantee to draw until being extracted into different numbers
Awards.
In addition, that is, candidate lottery numbers can also be from S+1~S+T if the number of prize drawing person is not since 000 number
Variation, then can be set as T for default integer, after acquiring the second remainder, the second remainder is added S, then obtains corresponding drawing outcomes.
Second aspect, the present invention provide a kind of random prize drawing equipment of application block chain, comprising:
Unit is initiated in prize drawing, and for initiating transfer request on block chain, the transfer request includes: initiator
Location, recipient address and transfer amounts；The transfer request is used as prize drawing；
Intermediate computations unit obtains the first cryptographic Hash, and obtain and work as carrying out Hash operation to the transfer request
What previous round went out block node always goes out block number n, and will first cryptographic Hash divided by total block number n out, obtain corresponding the
One remainder m, and obtain when m-th of block in total block of previous round, and block Hash operation is carried out to m-th of block,
Obtain the second cryptographic Hash；N is positive integer, and m is the positive integer less than n；
Prize drawing is extra-large unit, for second cryptographic Hash divided by default integer, to be obtained corresponding second remainder；It is described
Second remainder is this prize drawing number；The default integer determines the numerical value change section of the prize drawing number.
Optionally, first cryptographic Hash is hexadecimal data；The intermediate computations unit is by first Hash
Value is converted into corresponding decimal data；The first cryptographic Hash that will convert into decimal data always goes out block number n divided by described, obtains
Corresponding first remainder m.
Optionally, second cryptographic Hash is hexadecimal data；The prize drawing is extra-large unit for second Hash
Value is converted into corresponding decimal data；The second cryptographic Hash of decimal data be will convert into divided by default integer, corresponded to
The second remainder.
Optionally, when the default integer is 10, the prize drawing number changes in 0~9 range.
Optionally, when the default integer is 100, the prize drawing number changes in 00~99 range, wherein if more than second
When number is less than 10, then it will be exported after its ten zero paddings.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
The present invention provides the random lottery drawing method and equipment of a kind of application block chain, block chain technology is based on, due to area
Block chain data have open and clear characteristic, and block chain Information Security is very high, is very unlikely to be tampered, therefore confidence level
It is high.Number in block chain can be found by any user, therefore the process drawn a lottery can be supervised by masses, so that being based on block chain
Draw a lottery just, fair and open, is able to satisfy practical application request.
The present invention provides the random lottery drawing method and equipment of a kind of application block chain, initiates to take out based on block chain transferred account service
Prize, the process of prize drawing rely on the cryptographic Hash of block chain data, since there are randomnesss for Hash operation itself, and combine and work as previous round
The block cryptographic Hash of block counts and random wherein a certain block in block, finally utilizes the knot of random Harsh operation twice
Fruit divides exactly it and rems, and obtains final prize drawing, ensure that the randomness of the prize drawing process.
Detailed description of the invention
Fig. 1 is the random lottery drawing method flow chart of application block chain provided by the invention；
Fig. 2 is the random prize drawing equipment architecture diagram of application block chain provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is the random lottery drawing method flow chart of application block chain provided by the invention；As shown in Figure 1, including following step
It is rapid:
S11, prize drawing equipment initiate a transfer request on block chain, and the transfer request includes: initiator address, connects
Debit address and transfer amounts；The transfer request is used as prize drawing；
S12, the prize drawing equipment carry out Hash operation to the transfer request, obtain the first cryptographic Hash, and obtain and work as
Previous round goes out total block number n out of block node；N is positive integer；
First cryptographic Hash is always gone out block number n divided by described, obtains corresponding first remainder by S13, the prize drawing equipment
M, and obtaining when m-th of block in total block of previous round, and carry out block Hash operation to m-th block obtains the
Two cryptographic Hash；M is the positive integer less than n；
Second cryptographic Hash divided by default integer, is obtained corresponding second remainder by S14, the prize drawing equipment；It is described
Second remainder is this prize drawing number；The default integer determines the numerical value change section of the prize drawing number.
Specifically, the block process that goes out of block node is that will trade to be packaged into the process of block out.If always going out block when previous round
Number is n, then when total block counts of previous round are n.
In one example, the common recognition side of mechanism (Delegated ProofofStake, DPOS) is proved in authorization equity
Under formula, for example when previous round has 10 to go out block node, each going out block node, continuously 5 blocks, each round go out always going out for block node out
Block number is 50；Each go out the corresponding block of block, then each round, which can go out block node correspondence, there are 50 blocks.Wherein, every wheel
Block node goes out during block out, and each going out block node is to go out block in a predetermined sequence, i.e., each block is produced according to predetermined order
It is raw.In other words, each block is sequential.
Optionally, first cryptographic Hash is hexadecimal data；
First cryptographic Hash is always gone out block number n divided by described by the prize drawing equipment, obtains corresponding first remainder m, has
Body includes the following steps:
First cryptographic Hash is converted into corresponding decimal data by the prize drawing equipment；
The first cryptographic Hash that the prize drawing equipment will convert into decimal data always goes out block number n divided by described, is corresponded to
The first remainder m.
Optionally, second cryptographic Hash is hexadecimal data；
Second cryptographic Hash divided by default integer, is obtained corresponding second remainder, specifically included by the prize drawing equipment
Following steps:
Second cryptographic Hash is converted into corresponding decimal data by the prize drawing equipment；
The second cryptographic Hash that the prize drawing equipment will convert into decimal data obtains corresponding second divided by default integer
Remainder.
Optionally, when the default integer is 10, the prize drawing number changes in 0~9 range.
Optionally, when the default integer is 100, the prize drawing number changes within the scope of 00-99, wherein if more than second
When number is less than 10, then it will be exported after its ten zero paddings.
It should be noted that default integer can be set according to actual needs in prize drawing scheme provided by the invention.Not only
It is only limitted to 10 or 100 both of these case.Specifically, the summation that integer is candidate number section number quantity is preset, to ensure all times
The number of having can be pumped in choosing prize drawing.
It in one example, is every if candidate employee has 1000 if the lottery drawing method is applied to company's annual meeting prize drawing
Position candidate employee distribute a number, and the number of distribution can change in 000~999 number section.But the awards drawn may include: one
The case where Deng encouraging 5, second prize 20, third prize 50.It needs to draw 75 numbers in 1000 candidate numbers altogether, with complete
At sweepstake.Default integer is set as 1000, then the number extracted out changes corresponding be randomly dispersed in 000~999.It repeats
It draws a lottery 75 times, in the number being extracted into, preceding 50 numbers are then third prize, and the 51st number to the 70th number is then second prize,
71st number to the 75th number is then the first prize.Wherein, if the number drawn below is repeated with the number being extracted into before,
Again it extracts, until being extracted into different numbers, is got the winning number in a bond with guaranteeing to draw 75 candidate employees.
Wherein, the first prize can reward that the luxurious skin care item of company are a set of, and second prize can reward one bottle of company's medium-priced essence,
Third prize can reward company's MASQUE APAISANT HYDRATANT one box.
In another example: if the lottery drawing method is applied to market activity prize drawing, if candidate prize drawing people has 800,
A number is distributed for every candidate, the number of distribution can change in 000~799 number section.But the awards drawn may include:
The first prize 1, second prize 6, third prize 30 the case where.It needs to draw 37 numbers in 800 candidate numbers altogether, with complete
At sweepstake.Wherein, the first prize can get refrigerator prize, and second prize can get micro-wave oven prize, and third prize can get flower stand
Prize.
Then default integer can be set as 800, then the number extracted out changes corresponding be randomly dispersed in 000~799.It repeats
It draws a lottery 37 times, in the number being extracted into, preceding 30 numbers are then third prize, and the 31st number to the 36th number is then second prize,
37th number is then the first prize.Wherein, it if the number drawn below is repeated with the number being extracted into before, extracts again, directly
Until being extracted into different numbers, got the winning number in a bond with guaranteeing to draw 37 candidate prize drawing people.
In addition, that is, candidate lottery numbers can also be from S+1~S+T if the number of prize drawing person is not since 000 number
Variation, then can be set as T for default integer, after acquiring the second remainder, the second remainder is added S, then obtains corresponding drawing outcomes.
Random lottery drawing method provided by the invention is also applied in other concrete scenes, and those skilled in the art can
To carry out practical application according to actual needs.Those skilled in the art can select the default integer according to actual needs, with full
The corresponding prize drawing variation range section of foot requires.The present invention does any restriction not to this.
Fig. 2 is the random prize drawing equipment architecture diagram of application block chain provided by the invention, as shown in Fig. 2, including such as placing an order
Member:
Unit 21 is initiated in prize drawing, and for initiating a transfer request on block chain, the transfer request includes: initiator
Address, recipient address and transfer amounts；The transfer request is used as prize drawing；
Intermediate computations unit 22 obtains the first cryptographic Hash, and obtain for carrying out Hash operation to the transfer request
When what previous round went out block node always goes out block number n, and will first cryptographic Hash divided by total block number n out, obtain corresponding
First remainder m, and obtain when m-th of block in total block of previous round, and block Hash fortune is carried out to m-th of block
It calculates, obtains the second cryptographic Hash；N is positive integer, and m is the positive integer less than n；
Prize drawing is extra-large unit 23, for second cryptographic Hash divided by default integer, to be obtained corresponding second remainder；Institute
Stating the second remainder is this prize drawing number；The default integer determines the numerical value change section of the prize drawing number.
Optionally, first cryptographic Hash is hexadecimal data；The intermediate computations unit 22 is breathed out described first
Uncommon value is converted into corresponding decimal data；The first cryptographic Hash that will convert into decimal data always goes out block number n divided by described, obtains
To corresponding first remainder m.
Optionally, second cryptographic Hash is hexadecimal data；The prize drawing unit 23 that is extra-large is breathed out described second
Uncommon value is converted into corresponding decimal data；The second cryptographic Hash of decimal data be will convert into divided by default integer, obtained pair
The second remainder answered.
Optionally, when the default integer is 10, the prize drawing number changes in 0~9 range.
Optionally, when the default integer is 100, the prize drawing number changes in 00~99 range, wherein if more than second
When number is less than 10, then it will be exported after its ten zero paddings.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of random lottery drawing method of application block chain, which comprises the following steps:
Prize drawing equipment initiates a transfer request on block chain, and the transfer request includes: initiator address, recipient address
And transfer amounts；The transfer request is used as prize drawing；
The prize drawing equipment carries out Hash operation to the transfer request, obtains the first cryptographic Hash, and obtains when previous round goes out
Block node always goes out block number n；N is positive integer；
First cryptographic Hash is always gone out block number n divided by described by the prize drawing equipment, obtains corresponding first remainder m, and obtain
It takes when m-th of block in total block of previous round, and block Hash operation is carried out to m-th of block, obtain the second cryptographic Hash；
M is the positive integer less than n；
Second cryptographic Hash divided by default integer, is obtained corresponding second remainder by the prize drawing equipment；Second remainder
For this number of drawing a lottery；The default integer determines the numerical value change section of the prize drawing number；
First cryptographic Hash is hexadecimal data；
First cryptographic Hash is always gone out block number n divided by described by the prize drawing equipment, obtains corresponding first remainder m, specific to wrap
Include following steps:
First cryptographic Hash is converted into corresponding decimal data by the prize drawing equipment；
The prize drawing equipment will convert into the first cryptographic Hash of decimal data and always go out block number n divided by described, obtain corresponding the
One remainder m.
2. the random lottery drawing method of application block chain according to claim 1, which is characterized in that second cryptographic Hash is
Hexadecimal data；
Second cryptographic Hash divided by default integer, is obtained corresponding second remainder, specifically included as follows by the prize drawing equipment
Step:
Second cryptographic Hash is converted into corresponding decimal data by the prize drawing equipment；
The second cryptographic Hash that the prize drawing equipment will convert into decimal data obtains corresponding more than second divided by default integer
Number.
3. according to claim 1 to the random lottery drawing method of 2 described in any item application block chains, which is characterized in that described pre-
If integer is 10, the prize drawing number changes in 0~9 range.
4. according to claim 1 to the random lottery drawing method of 2 described in any item application block chains, which is characterized in that described pre-
If integer is 100, the prize drawing number changes within the scope of 00-99, wherein if the second remainder is less than 10, by its ten
It is exported after zero padding.
5. a kind of random prize drawing equipment of application block chain characterized by comprising
Prize drawing initiate unit, on block chain initiate a transfer request, the transfer request include: initiator address,
Recipient address and transfer amounts；The transfer request is used as prize drawing；
Intermediate computations unit obtains the first cryptographic Hash, and obtain when previous for carrying out Hash operation to the transfer request
That takes turns out block node always goes out block number n, and first cryptographic Hash is always gone out block number n divided by described, obtains corresponding more than first
Number m, and obtain when m-th of block in total block of previous round, and block Hash operation is carried out to m-th of block, it obtains
Second cryptographic Hash；N is positive integer, and m is the positive integer less than n；
Prize drawing is extra-large unit, for second cryptographic Hash divided by default integer, to be obtained corresponding second remainder；Described second
Remainder is this prize drawing number；The default integer determines the numerical value change section of the prize drawing number；
First cryptographic Hash is hexadecimal data；First cryptographic Hash is converted into corresponding to by the intermediate computations unit
Decimal data；The first cryptographic Hash that will convert into decimal data always goes out block number n divided by described, obtains corresponding more than first
Number m.
6. the random prize drawing equipment of application block chain according to claim 5, which is characterized in that second cryptographic Hash is
Hexadecimal data；Second cryptographic Hash is converted into corresponding decimal data by the prize drawing unit that is extra-large；It will conversion
At the second cryptographic Hash of decimal data divided by default integer, corresponding second remainder is obtained.
7. according to the random prize drawing equipment of the described in any item application block chains of claim 5 to 6, which is characterized in that described pre-
If integer is 10, the prize drawing number changes in 0~9 range.
8. according to the random prize drawing equipment of the described in any item application block chains of claim 5 to 6, which is characterized in that described pre-
If integer is 100, the prize drawing number changes in 00~99 range, wherein if the second remainder is less than 10, by its ten
It is exported after zero padding.
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| CN110223440B (en) * | 2019-06-13 | 2020-10-02 | 北京瑞策科技有限公司 | Random number shaking method and equipment for application block chain |
| CN110601819B (en) * | 2019-09-26 | 2023-02-14 | 腾讯科技（深圳）有限公司 | Processing method for random number, block chain link point device and storage medium |
| CN110990808B (en) * | 2019-11-21 | 2022-04-01 | 杭州趣链科技有限公司 | Notarization number shaking method based on block chain |
| CN110910559B (en) * | 2019-11-25 | 2021-06-25 | 杭州趣链科技有限公司 | Lottery drawing method based on block chain |
| CN111008863B (en) * | 2019-11-28 | 2023-09-05 | 湖南天河国云科技有限公司 | Lottery drawing method and system based on block chain |
| CN111724212A (en) * | 2020-06-30 | 2020-09-29 | 深圳壹账通智能科技有限公司 | Resource allocation method and device based on block chain and computer equipment |
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