CN110189465A - A kind of random lottery drawing method and its equipment by means of block chain - Google Patents
A kind of random lottery drawing method and its equipment by means of block chain Download PDFInfo
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- CN110189465A CN110189465A CN201910509043.5A CN201910509043A CN110189465A CN 110189465 A CN110189465 A CN 110189465A CN 201910509043 A CN201910509043 A CN 201910509043A CN 110189465 A CN110189465 A CN 110189465A
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- cryptographic hash
- block
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- prize drawing
- remainder
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Abstract
The present invention discloses a kind of random lottery drawing method and its equipment by means of block chain, comprising: prize drawing equipment initiates a transfer request on block chain, and transfer request is used as prize drawing；Equipment of drawing a lottery carries out Hash operation to transfer request, obtains the first cryptographic Hash；Prize drawing equipment is obtained 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 by equipment of drawing a lottery；Equipment of drawing a lottery is obtained when m-th of block in total block of previous round, and carries out block Hash operation to m-th of block, obtains the second cryptographic Hash；After second cryptographic Hash is added default value by equipment of drawing a lottery, then Hash operation is carried out to the second cryptographic Hash plus default value, obtains third cryptographic Hash；Third cryptographic Hash divided by default integer, is obtained corresponding second remainder by equipment of drawing a lottery；Second remainder is this 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 chain and prize drawing combination technology field, more particularly, to it is a kind of by means of block chain with
Machine lottery drawing method and its 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 by means of block chain, including
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；
Equipment of drawing a lottery carries out Hash operation to the transfer request, obtains the first cryptographic Hash；
Prize drawing equipment is obtained when 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 by equipment of drawing a lottery, and obtains corresponding first remainder m；M be less than
The positive integer of n；
Equipment of drawing a lottery is obtained when m-th of block in total block of previous round, and carries out block Hash fortune to m-th of block
It calculates, obtains the second cryptographic Hash；
After second cryptographic Hash is added default value by equipment of drawing a lottery, then the second cryptographic Hash plus default value is breathed out
Uncommon operation, obtains third cryptographic Hash；
The third cryptographic Hash divided by default integer, is obtained corresponding second remainder by equipment of drawing a lottery；Second remainder
For this number of drawing a lottery；The default integer determines the numerical value change section of the prize drawing number.
Optionally, the default value is 1 to the arbitrary integer between m.
Specifically, 1 is a random number to the arbitrary integer between m, therefore the default value is a random number, into
One step has ensured the randomness of prize drawing process.
Wherein, the second cryptographic Hash is hexadecimal, and the second cryptographic Hash adds default integer process and is also required to first breathe out second
Uncommon value and default integer are converted into identical system, and Hash operation is carried out after being added again later and obtains corresponding third cryptographic Hash.
Optionally, first cryptographic Hash is hexadecimal data；Equipment of drawing a lottery is by first cryptographic Hash divided by institute
It states and always goes out block number n, obtain corresponding first remainder m, specifically comprise the following steps:
First cryptographic Hash is converted into corresponding decimal data by equipment of drawing a lottery；
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.
Optionally, the third cryptographic Hash is hexadecimal data；Equipment of drawing a lottery is by the third cryptographic Hash divided by pre-
If integer, corresponding second remainder is obtained, is specifically comprised the following steps:
The third cryptographic Hash is converted into corresponding decimal data by equipment of drawing a lottery；
The third cryptographic Hash that prize drawing equipment will convert into decimal data obtains corresponding more than second divided by default integer
Number.
Optionally, when the default integer is 10, the prize drawing number changes in 0~9 range；The default integer is
When 100, the prize drawing number changes in 00~99 range, wherein, will be defeated after its ten zero paddings if the second remainder is less than 10
Out.
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 by means of 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；
Hash operation unit obtains the first cryptographic Hash for carrying out Hash operation to the transfer request；
Block information acquiring unit, for obtaining the total block number n out for working as previous round and going out block node；N is positive integer；
Remainder determination unit obtains corresponding first remainder for first cryptographic Hash always to be gone out block number n divided by described
m；M is the positive integer less than n；
Block information acquiring unit, for obtaining m-th of block in the total block for working as previous round；
Hash operation unit obtains the second cryptographic Hash for carrying out block Hash operation to m-th of block；By
After two cryptographic Hash add default value, then Hash operation is carried out to the second cryptographic Hash plus default value, obtains third Hash
Value；
Prize drawing is extra-large unit, for the third 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, the default value is 1 to the arbitrary integer between m.
Optionally, first cryptographic Hash is hexadecimal data；The remainder determination 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, the third cryptographic Hash is hexadecimal data；The prize drawing is extra-large unit for the third Hash
Value is converted into corresponding decimal data；The third 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；The default integer is
When 100, the prize drawing number changes in 00~99 range, wherein, will be defeated after its ten zero paddings if the second remainder is less than 10
Out.
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 a kind of random lottery drawing method and its equipment by means of block chain, is sent out based on block chain transferred account service
Prize drawing is played, the process of prize drawing relies on the cryptographic Hash of block chain data, since there are randomnesss for Hash operation itself, and combines current
The block cryptographic Hash of block counts and random wherein a certain block in one wheel block, in addition, increasing by one on this basis
Random number enhances the randomness of prize drawing process.Finally remming as a result, dividing exactly to it using random Harsh operation three times,
Final prize drawing is obtained, ensure that the randomness of the prize drawing process.
The present invention provides a kind of random lottery drawing method and its equipment by means of block chain, is based on block chain technology, by
There is open and clear characteristic in block chain data, and block chain Information Security is very high, is very unlikely to be tampered, therefore credible
Degree 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.
Detailed description of the invention
Fig. 1 is the random lottery drawing method flow chart provided by the invention by means of block chain；
Fig. 2 is the random prize drawing equipment architecture diagram provided by the invention by means of block chain.
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 provided by the invention by means of block chain；As shown in Figure 1, including following
Step:
S101, prize drawing equipment initiate a transfer request on block chain, the transfer request include: initiator address,
Recipient address and transfer amounts；The transfer request is used as prize drawing；
S102, prize drawing equipment carry out Hash operation to the transfer request, obtain the first cryptographic Hash；
S103, prize drawing equipment are obtained when 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 m by S104, prize drawing equipment；m
For the positive integer less than n；
S105, prize drawing equipment are obtained when m-th of block in total block of previous round, and carry out block to m-th of block
Hash operation obtains the second cryptographic Hash；
S106, after the second cryptographic Hash is added default value by prize drawing equipment, then to the second cryptographic Hash for adding default value
Hash operation is carried out, third cryptographic Hash is obtained；
The third cryptographic Hash divided by default integer, is obtained corresponding second remainder by S107, equipment of drawing a lottery；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 mode of mechanism (DelegatedProofofStake, DPOS) is proved in authorization equity
Under, for example when previous round has 15 block nodes out, each going out block node, continuously 6 blocks, each round go out total block out of block node out
Number is 90；Each go out the corresponding block of block, then each round, which can go out block node correspondence, there are 90 blocks.Wherein, every to take turns out
Block node goes out during block, and each going out block node is to go out block in a predetermined sequence, i.e., each block is generated according to predetermined order.
In other words, each block is sequential.
Optionally, the default value is 1 to the arbitrary integer between m.
Optionally, first cryptographic Hash is hexadecimal data；Equipment of drawing a lottery is by first cryptographic Hash divided by institute
It states and always goes out block number n, obtain corresponding first remainder m, specifically comprise the following steps:
First cryptographic Hash is converted into corresponding decimal data by equipment of drawing a lottery；
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.
Optionally, the third cryptographic Hash is hexadecimal data；Equipment of drawing a lottery is by the third cryptographic Hash divided by pre-
If integer, corresponding second remainder is obtained, is specifically comprised the following steps:
The third cryptographic Hash is converted into corresponding decimal data by equipment of drawing a lottery；
The third cryptographic Hash that prize drawing equipment will convert into decimal data obtains corresponding more than second divided by default integer
Number.
Optionally, when the default integer is 10, the prize drawing number changes in 0~9 range；The default integer is
When 100, the prize drawing number changes in 00~99 range, wherein, will be defeated after its ten zero paddings if the second remainder is less than 10
Out.
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.
In one embodiment: if the lottery drawing method is applied to market activity prize drawing, if candidate prize drawing people has 500,
A number is distributed for every candidate, the number of distribution can change in 000~499 number section.But the awards drawn may include:
The first prize 1, second prize 5, third prize 20 the case where.It needs to draw 26 numbers in 500 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 500, then the number extracted out changes corresponding be randomly dispersed in 000~499.It repeats
It draws a lottery 26 times, in the number being extracted into, preceding 20 numbers are then third prize, and the 21st number to the 25th number is then second prize,
26th 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 26 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.
In another embodiment, if the lottery drawing method is applied to company's annual meeting prize drawing, if candidate employee has 2000,
A number is distributed for every candidate employee, the number of distribution can change in 000~1999 number section.But the awards drawn may wrap
It includes: the case where the first prize 10, second prize 30, third prize 100.It needs to draw 140 in 2000 candidate numbers altogether
Number, to complete sweepstake.Default integer is set as 2000, then correspondence is randomly dispersed in 000~1999 by the number extracted out
Middle variation.It repeats to draw a lottery 140 times, in the number being extracted into, preceding 100 numbers are then third prize, and the 101st number is to the 130th
Number is then second prize, and the 131st number to the 140th number is then the first prize.Wherein, if the number drawn below with before
The number being extracted into repeats, then extracts again, until being extracted into different numbers, to guarantee to draw in 140 candidate employees
Prize.
Wherein, the first prize can reward company's latest edition mobile phone one, and second prize can reward company's small size air cleaner one
Platform, third prize can reward company's mobile power source one.
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 provided by the invention by means of block chain, as shown in Fig. 2, including as follows
Unit:
Unit 201 is initiated in prize drawing, and for initiating a transfer request on block chain, the transfer request includes: to initiate
Square address, recipient address and transfer amounts；The transfer request is used as prize drawing；
Hash operation unit 202 obtains the first cryptographic Hash for carrying out Hash operation to the transfer request；
Block information acquiring unit 203, for obtaining the total block number n out for working as previous round and going out block node；N is positive integer；
Remainder determination unit 204 obtains corresponding first for first cryptographic Hash always to be gone out block number n divided by described
Remainder m；M is the positive integer less than n；
Block information acquiring unit 203, for obtaining m-th of block in the total block for working as previous round；
Hash operation unit 202 obtains the second cryptographic Hash for carrying out block Hash operation to m-th of block；It will
After second cryptographic Hash adds default value, then Hash operation is carried out to the second cryptographic Hash plus default value, obtains third Kazakhstan
Uncommon value；
Prize drawing is extra-large unit 205, for the third cryptographic Hash divided by default integer, to be obtained corresponding second remainder；
Second remainder is this prize drawing number；The default integer determines the numerical value change section of the prize drawing number.
Optionally, the default value is 1 to the arbitrary integer between m.
Optionally, first cryptographic Hash is hexadecimal data；The remainder determination unit 204 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, the third cryptographic Hash is hexadecimal data；The prize drawing unit 205 that is extra-large breathes out the third
Uncommon value is converted into corresponding decimal data；The third 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；The default integer is
When 100, the prize drawing number changes in 00~99 range, wherein, will be defeated after its ten zero paddings if the second remainder is less than 10
Out.
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 (10)
1. a kind of random lottery drawing method by means of 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；
Equipment of drawing a lottery carries out Hash operation to the transfer request, obtains the first cryptographic Hash；
Prize drawing equipment is obtained when 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 by equipment of drawing a lottery, and obtains corresponding first remainder m；M is less than n's
Positive integer；
Equipment of drawing a lottery is obtained when m-th of block in total block of previous round, and carries out block Hash operation to m-th of block,
Obtain the second cryptographic Hash；
After second cryptographic Hash is added default value by equipment of drawing a lottery, then Hash fortune is carried out to the second cryptographic Hash plus default value
It calculates, obtains third cryptographic Hash；
The third cryptographic Hash divided by default integer, is obtained corresponding second remainder by equipment of drawing a lottery；Second remainder is this
Secondary prize drawing number；The default integer determines the numerical value change section of the prize drawing number.
2. the random lottery drawing method according to claim 1 by means of block chain, which is characterized in that the default value is
1 to the arbitrary integer between m.
3. the random lottery drawing method according to claim 1 by means of block chain, which is characterized in that first cryptographic Hash
For hexadecimal data；
Equipment of drawing a lottery will first cryptographic Hash divided by total block number n out, obtain corresponding first remainder m, specifically include as
Lower step:
First cryptographic Hash is converted into corresponding decimal data by equipment of drawing a lottery；
The first cryptographic Hash that prize drawing equipment will convert into decimal data always goes out block number n divided by described, obtains corresponding more than first
Number m.
4. the random lottery drawing method according to claim 1 by means of block chain, which is characterized in that the third cryptographic Hash
For hexadecimal data；
The third cryptographic Hash divided by default integer, is obtained corresponding second remainder, specifically comprised the following steps: by equipment of drawing a lottery
The third cryptographic Hash is converted into corresponding decimal data by equipment of drawing a lottery；
The third cryptographic Hash that prize drawing equipment will convert into decimal data obtains corresponding second remainder divided by default integer.
5. the random lottery drawing method according to any one of claims 1 to 4 by means of block chain, which is characterized in that described
When default integer is 10, the prize drawing number changes in 0~9 range；When the default integer is 100, the prize drawing number is 00
Variation in~99 ranges, wherein if the second remainder is less than 10, will be exported after its ten zero paddings.
6. a kind of random prize drawing equipment by means of 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；
Hash operation unit obtains the first cryptographic Hash for carrying out Hash operation to the transfer request；
Block information acquiring unit, for obtaining the total block number n out for working as previous round and going out block node；N is positive integer；
Remainder determination unit obtains corresponding first remainder m for first cryptographic Hash always to be gone out block number n divided by described；m
For the positive integer less than n；
Block information acquiring unit, for obtaining m-th of block in the total block for working as previous round；
Hash operation unit obtains the second cryptographic Hash for carrying out block Hash operation to m-th of block；Second is breathed out
After uncommon value adds default value, then Hash operation is carried out to the second cryptographic Hash plus default value, obtains third cryptographic Hash；
Prize drawing is extra-large unit, for the third 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.
7. the random prize drawing equipment according to claim 6 by means of block chain, which is characterized in that the default value is
1 to the arbitrary integer between m.
8. the random prize drawing equipment according to claim 6 by means of block chain, which is characterized in that first cryptographic Hash
For hexadecimal data；First cryptographic Hash is converted into corresponding decimal data by the remainder determination unit；It will turn
The first cryptographic Hash for changing decimal data into always goes out block number n divided by described, obtains corresponding first remainder m.
9. the random prize drawing equipment according to claim 6 by means of block chain, which is characterized in that the third cryptographic Hash
For hexadecimal data；The third cryptographic Hash is converted into corresponding decimal data by the prize drawing unit that is extra-large；It will turn
The third cryptographic Hash of decimal data is changed into divided by default integer, obtains corresponding second remainder.
10. according to the described in any item random prize drawing equipment by means of block chain of claim 6 to 9, which is characterized in that described
When default integer is 10, the prize drawing number changes in 0~9 range；When the default integer is 100, the prize drawing number is 00
Variation in~99 ranges, wherein if the second remainder is less than 10, will be exported after its ten zero paddings.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110601819A (en) * | 2019-09-26 | 2019-12-20 | 腾讯科技（深圳）有限公司 | Method for processing random number and related equipment |
| CN110633983A (en) * | 2019-09-05 | 2019-12-31 | 腾讯科技（深圳）有限公司 | Target event execution method and device based on block chain |
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