CN109035010A - For the suspicious transaction of block chain password currency and suspicious account analysis method and system - Google Patents
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- CN109035010A CN109035010A CN201810516830.8A CN201810516830A CN109035010A CN 109035010 A CN109035010 A CN 109035010A CN 201810516830 A CN201810516830 A CN 201810516830A CN 109035010 A CN109035010 A CN 109035010A
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Abstract
One kind is for the suspicious transaction of block chain password currency and suspicious account analysis method and system, it include: the downloading public account book data of block chain, therefrom choose potential illegal account A, obtain the account that A is paid, all Send only Accounts of each collecting account R [i] are searched, and find each Send only Account S [j]R[i]All collecting account R [j] [1]R[i]To R [j] [k]R[i], judge whether there is account S [j]R[i]Collecting account be equal to R [i], if then recording S [j]R[i]And possible relationship account aggregation P [1] is established, until P [L], judges whether P [a] and P [b] has identical collecting account so that P [a], P [b] traverse possible relationship account aggregation using a and b, judges TotalIt is identical/TotalAlwaysWhether it is greater than preset value, obtains final result.For the present invention under the premise of not changing block chain to account anonymity, analysis obtains the account that may belong to same user, high-efficient, accuracy is good.
Description
Technical field
The present invention relates to block chain technical fields, are directed to the suspicious friendship of block chain password currency more specifically to one kind
Easy and suspicious account analysis method and system.
Background technique
In recent years, the whole world has started the upsurge of research block chain, and many developed countries, which have begun, receives the payment of bit coin.
The advantages of block chain has decentralization, and anonymity is open, and autonomy and information can not distort.But simultaneously, block chain
Development in China still faces some problems.Firstly, block chain is for rudiment and developing stage at present, China is for block chain
Administrative mechanism it is perfect not enough, the characteristics of block chain anonymity, may be used by people, and carry out money laundering.Crime of laundering is for many years
The problem of financial field is studied, and this problem is still remained and is not completely resolved so far.Hitting crime of laundering is China
A vital task in recent years, thus develop block chain technology, promote China's science and technology and it is economical while, it would be desirable to protect
Card block chain is reasonably used, and has corresponding method to prevent, and monitors and hit crime of laundering behavior.Second, at present I
State has been carried out the policy of Real-name Registration, this is contradicted with the feature of account anonymity in block chain.How the political affairs in China are balanced
Contradiction between plan and block chain secret protection, also lacks relevant technology and policy at present.How to be looked in block chain account book
To illegal account, and the holder that account will be found, be China develop block chain digital cash problem to be solved it
One.
Summary of the invention
Based on the above issues, this patent proposes a kind of for the suspicious transaction of block chain password currency and the analysis of suspicious account
Method and system analyze the different accounts that may belong to the same user by block chain account book.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of suspicious for block chain password currency
Transaction and suspicious account analysis method, include the following steps:
S1, the downloading public account book data of block chain, therefrom choose a potential illegal account A；
S2, the account that account A is paid is obtained:
Receive={ R [1], R [2] ..., R [m] },
In formula, m is the quantity of the collecting account of transaction corresponding to account A, and R is collecting account；
S3, all Send only Accounts for searching each collecting account R [i]:
SendR[i]={ S [1]R[i],S[2]R[i],…,S[nR[i]]R[i],
And find each Send only Account S [j]R[i]All Activity collecting account:
SR[j]R[i]={ R [j] [1]R[i],R[j][2]R[i],…,R[j][k]R[i],
In formula, nR[i]For the quantity of all Send only Accounts of collecting account R [i], S is Send only Account, and k is Send only Account S
[j]R[i]All Activity collecting account quantity；
S4, account S [j] is judged whether there isR[i]Transaction collecting account R [j] [k]R[i]Transaction gathering equal to account A
Account R [i], if then recording the S [j]R[i], and establish possibility relationship account aggregation PRelation={ P [1], P of account A
..., [2], P [L] }, wherein P [1], P [2] ..., P [L] indicate record different S [j]R[i]；
S5, using unequal a and b so that traverse may be each in relationship account aggregation PRelation by P [a], P [b]
Element judges between each P [a] and P [b] with the presence or absence of identical transaction collecting account SR []R[], and calculate P [a] and P [b]
Total group of number TotalAlwaysAnd there are identical transaction collecting account SR []R[]P [a] and P [b] organize number TotalIt is identical, judgement
TotalIt is identical/TotalAlwaysWhether preset value is greater than, if so, thinking account all in possible relationship account aggregation PRelation
All for the same user, which is finally regarded as may be illegal, otherwise it is assumed that may relationship account aggregation PRelation
In all account be not that the same user is all, each account is legal.
Further, it in suspicious transaction and suspicious account analysis method, is walked of the invention for block chain password currency
In rapid 1, it is one or more of following for being judged as potential illegal account with the judgment mode chosen:
(1) before the transaction amount ranking in current block chain account book data predetermined number amount account；
(2) account of predetermined number amount before frequency ranking of trading in certain period of time；
(3) account traded in the transaction low ebb period is concentrated on.
Further, it is directed in the suspicious transaction of block chain password currency and suspicious account analysis method in of the invention,
The account for belonging to exchange is eliminated in the account of predetermined number amount before transaction frequency ranking described in mode (2)
Family；
5:00 AM is arrived for 11 points at night in the transaction low ebb period in mode (3).
Further, it is directed in the suspicious transaction of block chain password currency and suspicious account analysis method in of the invention, institute
State step S3 further include: to the SendR[i]Each of element S []R[i]Judged, if S []R[i]With account A points
Not Gei R [i] pay the bill when, the two payment time differs by more than preset value, then by this undesirable S []R[i]From SendR[i]In
It rejects, rejects all undesirable S []R[i]The Send formed afterwardsR[i]Send the most finalR[i]Carry out subsequent step
Suddenly.
Further, it in suspicious transaction and suspicious account analysis method, is walked of the invention for block chain password currency
Account S [j] is judged whether there is described in rapid S4R[i]Transaction collecting account R [j] [k]R[i]Transaction gathering account equal to account A
Family R [i] is if then record the S [j] with describedR[i], and establish the possibility relationship account aggregation PRelation={ P of account A
[1], [2] P ..., P [L] between further include
Judge to account S [j]R[i]When paying the bill with account A to identical collecting account, whether the two payment time difference is small
In preset value, only the result of two judgements in step s 4 is that the S [j] is recorded when beingR[i], and establish the possibility of account A
Relationship account aggregation PRelation=P [1], P [2] ..., P [L] }.
According to another aspect of the present invention, the present invention is to solve its technical problem, is additionally provided a kind of close for block chain
The suspicious transaction of code currency and suspicious account analysis system, include the following steps:
Potential illegal account chooses module, for downloading the public account book data of block chain, therefrom chooses a potential illegal account
Family A；
Collecting account obtains module, the account paid for obtaining account A:
Receive={ R [1], R [2] ..., R [m] },
In formula, m is the quantity of the collecting account of transaction corresponding to account A, and R is collecting account；
Payment obtains module with collecting account, for searching all Send only Accounts of each collecting account R [i]:
SendR[i]={ S [1]R[i],S[2]R[i],…,S[nR[i]]R[i],
And find each Send only Account S [j]R[i]All Activity collecting account:
SR[j]R[i]={ R [j] [1]R[i],R[j][2]R[i],…,R[j][k]R[i],
In formula, nR[i]For the quantity of all Send only Accounts of collecting account R [i], S is Send only Account, and k is Send only Account S
[j]R[i]All Activity collecting account quantity；
Possible relationship account aggregation establishes module, for judging whether there is account S [j]R[i]Transaction collecting account R
[j][k]R[i]Transaction collecting account R [i] equal to account A, if then recording the S [j]R[i], and establish the possibility relationship of account A
Account aggregation PRelation={ P [1], P [2] ..., P [L] }, wherein P [1], P [2] ..., P [L] indicate the different S of record
[j]R[i]；
Final result generation module, for using unequal a and b, so that P [a], P [b] traverse possible relationship account collection
Each element in PRelation is closed, is judged between each P [a] and P [b] with the presence or absence of identical transaction collecting account SR []R[],
And calculate the total group of number Total of P [a] Yu P [b]AlwaysAnd there are identical transaction collecting account SR []R[]P [a] and P [b]
Group number TotalIt is identical, judge TotalIt is identical/TotalAlwaysWhether preset value is greater than, if so, thinking may relationship account aggregation
All accounts are all for the same user in PRelation, which is finally regarded as may be illegal, otherwise it is assumed that may
All accounts are not that the same user is all in relationship account aggregation PRelation, and each account is legal.
Further, it in suspicious transaction and suspicious account analysis system, dives of the invention for block chain password currency
Chosen in module in illegal account, be judged as potential illegal account with the judgment mode chosen be it is one of following or
It is a variety of:
(1) before the transaction amount ranking in current block chain account book data predetermined number amount account；
(2) account of predetermined number amount before frequency ranking of trading in certain period of time；
(3) account traded in the transaction low ebb period is concentrated on.
Further, it is directed in the suspicious transaction of block chain password currency and suspicious account analysis system in of the invention, side
The account for belonging to exchange is eliminated in the account of predetermined number amount before transaction frequency ranking described in formula (2)；
5:00 AM is arrived for 11 points at night in the transaction low ebb period in mode (3).
Further, it is directed in the suspicious transaction of block chain password currency and suspicious account analysis system in of the invention, institute
It states payment and collecting account obtains module further include: to the SendR[i]Each of element S []R[i]Judged, if
S[]R[i]When giving R [i] to pay the bill respectively with account A, the two payment time differs by more than preset value, then by this undesirable S
[]R[i]From SendR[i]All undesirable S [] are rejected in middle rejectingR[i]The Send formed afterwardsR[i]It is the most final
SendR[i]Carry out subsequent step.
Further, it is directed in the suspicious transaction of block chain password currency and suspicious account analysis system in of the invention, it can
Energy relationship account aggregation, which is established, judges whether there is account S [j] described in moduleR[i]Transaction collecting account R [j] [k]R[i]Deng
In account A transaction collecting account R [i] if with described the S [j] is then recordedR[i], and establish the possibility relationship account of account A
Further include between set PRelation={ P [1], P [2] ..., P [L] }
Judge to account S [j]R[i]When paying the bill with account A to identical collecting account, whether the two payment time difference is small
In preset value, the results for two judgements only established in module in possible relationship account aggregation record the S [j] when being to beR[i],
And establish the possibility relationship account aggregation PRelation={ P [1], P [2] ..., P [L] } of account A.
Implement it is of the invention for the suspicious transaction of block chain password currency and suspicious account analysis method and system, have with
Down the utility model has the advantages that can be under the premise of not changing block chain to account anonymity, it is same that analysis show which account may belong to
A user, analysis efficiency is high, accuracy is good.And judgement of the invention based on exchange hour, further reduces the account of tracking
Quantity reduces data processing amount, shortens analysis time.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the stream for block chain password currency suspicious transaction and suspicious one embodiment of account analysis method of the invention
Cheng Tu；
Fig. 2 is to look for related account schematic diagram；
Fig. 3 is A, B, C account relation schematic diagram.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
With reference to Fig. 1, to be of the invention for the suspicious transaction of block chain password currency and suspicious account analysis method, including
Following steps:
S1, the downloading public account book data of block chain, therefrom choose a potential illegal account A；It is judged as potential illegal account
It is one or more of following with the judgment mode chosen:
(1) before the transaction amount ranking in current block chain account book data predetermined number amount account；
(2) account of predetermined number amount (eliminates the account for belonging to exchange before transaction frequency ranking in certain period of time
Family)；
(3) account that (at night 11 points to 5:00 AM) trade was concentrated in the transaction low ebb period.
With reference to Fig. 2, S2, the account that account A is paid is obtained:
Receive={ R [1], R [2] ..., R [m] },
In formula, m is the quantity of the collecting account of transaction corresponding to account A, and R is collecting account.
S3, all Send only Accounts for searching each collecting account R [i]:
SendR[i]={ S [1]R[i],S[2]R[i],…,S[nR[i]]R[i],
And find each Send only Account S [j]R[i]All Activity collecting account:
SR[j]R[i]={ R [j] [1]R[i],R[j][2]R[i],…,R[j][k]R[i],
In formula, nR[i]For the quantity of all Send only Accounts of collecting account R [i], S is Send only Account, and k is Send only Account S
[j]R[i]All Activity collecting account quantity；
S4, account S [j] is judged whether there isR[i]Transaction collecting account R [j] [k]R[i]Transaction gathering equal to account A
Account R [i], if then recording the S [j]R[i], and establish possibility relationship account aggregation PRelation={ P [1], P of account A
..., [2], P [L] }, wherein P [1], P [2] ..., P [L] indicate record different S [j]R[i]；
S5, using unequal a and b so that traverse may be each in relationship account aggregation PRelation by P [a], P [b]
Element judges between each P [a] and P [b] with the presence or absence of identical transaction collecting account SR []R[], and calculate P [a] and P [b]
Total group of number TotalAlwaysAnd there are identical transaction collecting account SR []R[]P [a] and P [b] organize number TotalIt is identical, judgement
TotalIt is identical/TotalAlwaysWhether preset value is greater than, if so, thinking account all in possible relationship account aggregation PRelation
All for the same user, which is finally regarded as may be illegal, otherwise it is assumed that may relationship account aggregation PRelation
In all account be not that the same user is all, each account is legal.
In of the invention, for block chain password currency, suspicious transaction is in suspicious account analysis method, and the step S3 is also
It include: to the SendR[i]Each of element S []R[i]Judged, if S []R[i]R [i] is given to pay respectively with account A
When money, the two payment time differs by more than preset value, then by this undesirable S []R[i]From SendR[i]Middle rejecting is rejected
All undesirable S []R[i]The Send formed afterwardsR[i]Send the most finalR[i]Carry out subsequent step.
It is directed in the suspicious transaction of block chain password currency and suspicious account analysis method in of the invention, described in step S4
Judge whether there is account S [j]R[i]Transaction collecting account R [j] [k]R[i]Transaction collecting account R [i] and institute equal to account A
The S [j] is then recorded if statingR[i], and establish possibility relationship account aggregation PRelation={ P [1], P [2] ..., P of account A
[L] } between further include
Judge to account S [j]R[i]When paying the bill with account A to identical collecting account, whether the two payment time difference is small
In preset value, only the result of two judgements in step s 4 is that the S [j] is recorded when beingR[i], and establish the possibility of account A
Relationship account aggregation PRelation=P [1], P [2] ..., P [L] }.
Embodiment 1:A is the account for carrying out transaction privacy analysis.By calculating, the transaction payment of discovery account B and C
Having intersection between side and account A, (the transaction paying party collection for setting account A is combined into SA, and the transaction paying party collection of account B is combined into SB, account
The transaction paying party collection of family C is combined into SC), i.e. SA ∩ SB ≠ Φ, SA ∩ SC ≠ Φ, SB ∩ SC ≠ Φ.Then illustrate account A, B, C can
The same user can be belonged to.
Embodiment 2: if there are the friendships of certain pen in two accounts in account A, B, C there are certain transaction or among them
Easily, transaction beneficiary is identical, and exchange hour difference is shorter, then judges that these three accounts are possible to belong to the same user.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. one kind is for the suspicious transaction of block chain password currency and suspicious account analysis method, which is characterized in that including walking as follows
It is rapid:
S1, the downloading public account book data of block chain, therefrom choose a potential illegal account A；
S2, the account that account A is paid is obtained:
Receive={ R [1], R [2] ..., R [m] },
In formula, m is the quantity of the collecting account of transaction corresponding to account A, and R is collecting account；
S3, all Send only Accounts for searching each collecting account R [i]:
SendR[i]={ S [1]R[i],S[2]R[i],…,S[nR[i]]R[i],
And find each Send only Account S [j]R[i]All Activity collecting account:
SR[j]R[i]={ R [j] [1]R[i],R[j][2]R[i],…,R[j][k]R[i],
In formula, nR[i]For the quantity of all Send only Accounts of collecting account R [i], S is Send only Account, and k is Send only Account S [j]R[i]
All Activity collecting account quantity；
S4, account S [j] is judged whether there isR[i]Transaction collecting account R [j] [k]R[i]Transaction collecting account R equal to account A
[i], if then recording the S [j]R[i], and establish possibility relationship account aggregation PRelation={ P [1], P of account A
..., [2], P [L] }, wherein P [1], P [2] ..., P [L] indicate record different S [j]R[i]；
S5, using unequal a and b so that P [a], P [b] traverse may each element in relationship account aggregation PRelation,
Judge between each P [a] and P [b] with the presence or absence of identical transaction collecting account SR []R[], and calculate the total of P [a] and P [b]
Group number TotalAlwaysAnd there are identical transaction collecting account SR []R[]P [a] and P [b] organize number TotalIt is identical, judgement
TotalIt is identical/TotalAlwaysWhether preset value is greater than, if so, thinking account all in possible relationship account aggregation PRelation
All for the same user, which is finally regarded as may be illegal, otherwise it is assumed that may relationship account aggregation PRelation
In all account be not that the same user is all, each account is legal.
2. according to claim 1 for the suspicious transaction of block chain password currency and suspicious account analysis method, feature
It is, in step 1, it is one or more of following for being judged as potential illegal account with the judgment mode chosen:
(1) before the transaction amount ranking in current block chain account book data predetermined number amount account；
(2) account of predetermined number amount before frequency ranking of trading in certain period of time；
(3) account traded in the transaction low ebb period is concentrated on.
3. according to claim 2 for the suspicious transaction of block chain password currency and suspicious account analysis method, feature
It is,
The account for belonging to exchange is eliminated in the account of predetermined number amount before transaction frequency ranking described in mode (2)；
5:00 AM is arrived for 11 points at night in the transaction low ebb period in mode (3).
4. according to claim 1 for the suspicious transaction of block chain password currency and suspicious account analysis method, feature
It is,
The step S3 further include: to the SendR[i]Each of element S []R[i]Judged, if S []R[i]And account
When family A gives R [i] to pay the bill respectively, the two payment time differs by more than preset value, then by this undesirable S []R[i]From
SendR[i]All undesirable S [] are rejected in middle rejectingR[i]The Send formed afterwardsR[i]Send the most finalR[i]Progress after
Continuous step.
5. according to claim 1 for the suspicious transaction of block chain password currency and suspicious account analysis method, feature
It is,
Account S [j] is judged whether there is described in step S4R[i]Transaction collecting account R [j] [k]R[i]Equal to the transaction of account A
Collecting account R [i] is if then record the S [j] with describedR[i], and establish the possibility relationship account aggregation PRelation of account A
Further include between={ P [1], P [2] ..., P [L] }
Judge to account S [j]R[i]When paying the bill with account A to identical collecting account, it is pre- whether the two payment time difference is less than
If value, only the result of two judgements in step s 4 is that the S [j] is recorded when beingR[i], and establish the possibility relationship of account A
Account aggregation PRelation=P [1], P [2] ..., P [L] }.
6. one kind is for the suspicious transaction of block chain password currency and suspicious account analysis system, which is characterized in that including walking as follows
It is rapid:
Potential illegal account chooses module, for downloading the public account book data of block chain, therefrom chooses a potential illegal account A；
Collecting account obtains module, the account paid for obtaining account A:
Receive={ R [1], R [2] ..., R [m] },
In formula, m is the quantity of the collecting account of transaction corresponding to account A, and R is collecting account；
Payment obtains module with collecting account, for searching all Send only Accounts of each collecting account R [i]:
SendR[i]={ S [1]R[i],S[2]R[i],…,S[nR[i]]R[i],
And find each Send only Account S [j]R[i]All Activity collecting account:
SR[j]R[i]={ R [j] [1]R[i],R[j][2]R[i],…,R[j][k]R[i],
In formula, nR[i]For the quantity of all Send only Accounts of collecting account R [i], S is Send only Account, and k is Send only Account S [j]R[i]
All Activity collecting account quantity；
Possible relationship account aggregation establishes module, for judging whether there is account S [j]R[i]Transaction collecting account R [j]
[k]R[i]Transaction collecting account R [i] equal to account A, if then recording the S [j]R[i], and establish the possibility relationship account of account A
Family set PRelation={ P [1], P [2] ..., P [L] }, wherein P [1], P [2] ..., P [L] indicate the different S of record
[j]R[i]；
Final result generation module, for using unequal a and b, so that P [a], P [b] traverse possible relationship account aggregation
Each element in PRelation judges between each P [a] and P [b] with the presence or absence of identical transaction collecting account SR []R[], and
Calculate the total group of number Total of P [a] Yu P [b]AlwaysAnd there are identical transaction collecting account SR []R[]P [a] and P [b] group
Number TotalIt is identical, judge TotalIt is identical/TotalAlwaysWhether preset value is greater than, if so, thinking may relationship account aggregation
All accounts are all for the same user in PRelation, which is finally regarded as may be illegal, otherwise it is assumed that may
All accounts are not that the same user is all in relationship account aggregation PRelation, and each account is legal.
7. according to claim 6 for the suspicious transaction of block chain password currency and suspicious account analysis system, feature
It is, potential illegal account is chosen in module, and being judged as potential illegal account with the judgment mode chosen is in following
It is one or more kinds of:
(1) before the transaction amount ranking in current block chain account book data predetermined number amount account；
(2) account of predetermined number amount before frequency ranking of trading in certain period of time；
(3) account traded in the transaction low ebb period is concentrated on.
8. according to claim 6 for the suspicious transaction of block chain password currency and suspicious account analysis system, feature
It is,
The account for belonging to exchange is eliminated in the account of predetermined number amount before transaction frequency ranking described in mode (2)；
5:00 AM is arrived for 11 points at night in the transaction low ebb period in mode (3).
9. according to claim 6 for the suspicious transaction of block chain password currency and suspicious account analysis system, feature
It is,
The payment obtains module with collecting account further include: to the SendR[i]Each of element S []R[i]Sentenced
It is disconnected, if S []R[i]When giving R [i] to pay the bill respectively with account A, the two payment time differs by more than preset value, then does not meet this
It is required that S []R[i]From SendR[i]All undesirable S [] are rejected in middle rejectingR[i]The Send formed afterwardsR[i]It is the most final
SendR[i]Carry out subsequent step.
10. according to claim 6 for the suspicious transaction of block chain password currency and suspicious account analysis system, feature
It is,
Possible relationship account aggregation, which is established, judges whether there is account S [j] described in moduleR[i]Transaction collecting account R [j]
[k]R[i]Transaction collecting account R [i] equal to account A is if then record the S [j] with describedR[i], and the possibility for establishing account A is closed
Being between account aggregation PRelation={ P [1], P [2] ..., P [L] } further includes
Judge to account S [j]R[i]When paying the bill with account A to identical collecting account, it is pre- whether the two payment time difference is less than
If value, the results for two judgements only established in module in possible relationship account aggregation record the S [j] when being to beR[i], and build
Open an account with the possibility relationship account aggregation PRelation={ P [1], P [2] ..., P [L] } of family A.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750774A (en) * | 2019-10-21 | 2020-02-04 | 深圳众赢维融科技有限公司 | Identity recognition method and device |
| CN111737322A (en) * | 2020-07-31 | 2020-10-02 | 支付宝(杭州)信息技术有限公司 | Data sharing method, device and equipment |
| CN112488708A (en) * | 2020-11-30 | 2021-03-12 | 苏州黑云智能科技有限公司 | Block chain account relevance query method and false transaction screening method |
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| CN112488708A (en) * | 2020-11-30 | 2021-03-12 | 苏州黑云智能科技有限公司 | Block chain account relevance query method and false transaction screening method |
| CN112488708B (en) * | 2020-11-30 | 2024-04-05 | 苏州黑云智能科技有限公司 | Block chain account relevance query method and false transaction screening method |
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