CN109936562A - A kind of scalable accessing control method calculated towards mist - Google Patents
A kind of scalable accessing control method calculated towards mist Download PDFInfo
- Publication number
- CN109936562A CN109936562A CN201910019362.8A CN201910019362A CN109936562A CN 109936562 A CN109936562 A CN 109936562A CN 201910019362 A CN201910019362 A CN 201910019362A CN 109936562 A CN109936562 A CN 109936562A
- Authority
- CN
- China
- Prior art keywords
- user
- key
- ciphertext
- system parameter
- access strategy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of scalable accessing control methods calculated towards mist, this method realizes beam-based alignment as access structure using linear secret sharing matrix, using mist node as edge service node, by the encryption and decryption operation in reasonable distribution access control, to reduce computing overhead of the terminal user in access control.And the present invention can add new legal person on the basis of keeping original access strategy and form new access strategy; whether initial data can be distorted with test access user when uploading new access strategy simultaneously, realize the integrity protection to initial data.
Description
Technical field
The invention belongs to Computer Applied Technologies, and in particular to a kind of scalable accessing control method calculated towards mist.
Background technique
Cloud computing technology is that user brings unprecedented computing capability and almost limitless memory space, and user can borrow
Help cloud platform and realizes a series of work such as the analysis, processing, storage of mass datas.However, due to where cloud platform server
Core network often apart from terminal user farther out, which results in practical application especially to the higher application of requirement of real time
In field, cloud computing can not provide reliable real-time response, this also has become the bottleneck problem of limitation cloud computing application.Its
Middle mist calculates as a kind of typical edge calculations mode and is increasingly becoming research hotspot in recent years.Mist calculate have low time delay,
The advantages that removable, distributed, therefore can be very good cloud service expanding to network edge, it is provided more just for terminal user
Prompt service response.
In the research calculated for mist, the access control safety problem of data is had been a concern.Although in cloud computing
Extensive research has been obtained in middle access control technology, it is contemplated that mist calculate the network architecture and in terms of
Otherness, the existing access control policy suitable for cloud computing not can be used directly mist calculating field.Especially into
After mist node, how reasonably to distribute mist node and terminal user operation in this course and communication overhead, cloud, mist with
And access control succinct, effectively, safe is formed between terminal user, it is the key that realize that data safety is shared under mist environment.
Summary of the invention
Goal of the invention: in view of the above shortcomings of the prior art, the present invention provides a kind of scalable accessing calculated towards mist
Control method.
A kind of technical solution: scalable accessing control method calculated towards mist, comprising the following steps:
(1) it initializes system: generating system parameter and master key, the system parameter arbitrarily disclose, master key is by credible
Mechanism saves；
(2) user's registration: the attribute distribution possessed according to user belongs to the private key of individual subscriber；
(3) it data encryption: is handled to obtain at one with the plaintext that hash algorithm uploads data upload user
Value after reason obtains symmetric key using the value COMPREHENSIVE CALCULATING of system parameter and plaintext after treatment；And the data upload
Encrypted data, to encrypting in plain text, are uploaded to Cloud Server storage by symmetric key by user, will be pre-set
Access strategy reaches mist node and is for further processing；
(4) it forms access strategy and part ciphertext, mist node includes converting access structure for access strategy according to LSSS
With undertake the calculating for part ciphertext；
(5) data upload user improves ciphertext, and according to system parameter and in plain text, treated that value will for data upload user
Ciphertext supplement in part is complete, and ciphertext and access structure are then sent to Cloud Server and saved；
(6) mist node undertakes non-decryption portion data again and calculates, by calculating to value will be transmitted to ordinary user and exist
It is used during subsequent decryption；
(7) ciphertext is decrypted in user, and user constructs key according to the private key of oneself, carries out with key pair ciphertext
Decryption obtains in plain text；
(8) data uploaded for the user by access strategy extension carry out integrity checking, and Cloud Server is to new
Data checked, new data are added in cloud service if by checking, if it fails, if cannot expand again
New access strategy.
Further, the step (1) includes input security parameter 1λ, the attribute number N being arranged in access strategy, by can
Believe that mechanism generates system parameter m and master key mk, wherein system parameter m is arbitrarily disclosed, and master key mk is saved by trust authority；
The system parameter m is (PG, g, u, g1, g2..., gN, h, gα, e (h, h)α, (E, D)), master key mk=hα, wherein bilinearity
Group PG=(G, GT, e, p), simultaneous selection g, u, g1, g2..., gN, h ∈ G, from GPOne parameter alpha of middle random selection, calculates gα,
E (h, h)α, a symmetric encipherment algorithm is selected to be denoted as (E, D).
The step (2) includes input system parameter m, master key mk, registers the property value set S of user, trust authority
The key sks and part of key sks ' for belonging to registration user are returned, is specifically included as follows:
If the property set that each user is possessed is S, the number of attribute is infused no more than N when user issues in property set
After volume request, trust authority receives property set S, and master key mk, system parameter m obtain private key sks and part of key after calculating
sks′；
The trust authority randomly chooses a random parameter r ∈ ZP, calculated result is as follows:With
Finally, user, which obtains private key, completes registration, and sks ' is transmitted to mist node.
The step (3) carries out plaintext F with hash algorithm H by data uploader irreversible result f is calculated
=H (F), while calculating key k=e (h, h)fα。
The step (4) includes input access strategy P, and system parameter m, mist node is by returning part ciphertext ct；The mist
Node converts access strategy P1 to the access structure (M, ρ) formed based on LSSS, and process is as follows:
According to the corresponding attribute value of every a line, defined function ρ (i) ∈ { Att1 ..., AttN } indicates every a line and every
The relationship mapped one by one between a attribute, the mist node randomly chooses a random value t, and calculates outgoing vectorThe mist node is calculated againWherein i indicates the i-th of Metzler matrix
Row, mist node randomly choose one group of Z1, z2, z3..., Zm∈Zp, for calculating, rerun Fog algorithm input system parameter m with
And θjCalculate part ciphertext ct；The part ciphertext ct is expressed as follows:
Calculating, which is finished, is sent to data upload user for ct and access structure (M, ρ).
The step (5) includes input access strategy P, and system parameter m, part ciphertext ct, data uploader will return close
Literary CT, data uploader operation Enc algorithm importation ciphertext ct and system parameter m and cryptographic Hash f calculate ciphertext CT,
Expression formula is as follows:
Lp1 (k) is reached Cloud Server and stored by then Lp1 (k)=((M, ρ), CT), data uploader.
The step (6) includes input access strategy P, system parameter m, part ciphertext ct, and mist node will return to calculated value
W, mist node run Foc algorithm, input system parameter m, and part ciphertext ct, part private key sks ' and access strategy (M, ρ) are calculated
It is as follows out:
Generate set IA, ρ={ I1..., Iq}: user meets the set of the smallest subset of the attribute of (M, ρ).If user
Attribute meets access structure, then constant collection { ω can be found in polynomial timei∈ZP}i∈I, wherein IJ∈IA, ρ, 1≤j≤
Q makes ∑i∈Iωiθi=t；
Finally, W is transmitted to user by the mist node.
The step (7) includes input private key sks, system parameter m, mist node calculated result W, ciphertext CT, user's building
Key k returns to the data F after decryption out.
User runs Dec algorithm, and by private key sks, ciphertext CT, system parameter m and mist node calculated result W are constructed
Key k:
Finally, user is with the corresponding corresponding symmetrical confidentiality algorithm of key k to Ek(F) decryption obtains in plain text.
Step (8) includes input system parameter m, original access strategy P, original cipher text CT, new access strategy P ', and new is close
Literary CT ', Cloud Server, which will return successfully, or two kinds of failure is as a result, successfully represent new access strategy P ' can be added to cloud clothes
It is engaged in device, failure then cannot；The integrality that user uploads data is expanded in the Cloud Server inspection；Pass through original access strategy
New user repeats step (4) and (5) and creates new access strategy P2, forms Lp2 (k ') and is uploaded to cloud.Cloud Server again from
GPThe new parameter γ of middle random selection one constructs pseudo- master key, calculates corresponding private under the new and old access strategy of puppet master key
Key SKS and NKS ':
Repeat step (6) and (7) calculate compare key corresponding to the two private keys it is whether identical to determine whether by
To destruction, if not destroyed, Lp2 (k ') will be stored on cloud by Cloud Server, then the data change at this time on cloud is
(Lp2 (k), Lp1 (k), Ek(F))。
The utility model has the advantages that compared with prior art, the present invention realizes base as access structure using linear secret sharing matrix
In the access control of attribute, using mist node as edge service node, encryption and decryption operation in reasonable distribution access control, drop
Computing overhead of the low terminal user in access control.Also, the method can be on the basis of keeping original access strategy
Add new legal person and form new access strategy, at the same can with test access user when uploading new access strategy whether
Initial data is distorted, the integrity protection to initial data is realized.
Detailed description of the invention
Fig. 1 is that the multiple key towards cloud computing can sort the model schematic of cipher text retrieval method.
Specific embodiment
In order to which technical solution disclosed in this invention is described in detail, with reference to the accompanying drawings of the specification and embodiment is done into one
The elaboration of step.
Disclosed in this invention is a kind of scalable accessing control method calculated towards mist, mostly crucial towards cloud computing
Word can sort cipher text retrieval method model schematic as shown in Figure 1, specifically comprising the following steps:
Step1: input security parameter 1λ, the attribute number N being arranged in access strategy generates system parameter by trust authority
M and master key mk, wherein system parameter m is arbitrarily disclosed, and master key mk is saved by trust authority.It is specific to determine that method includes such as
Under:
System parameter m is (PG, g, u, g1, g2..., gN, h, gα, e (h, h)α, (E, D))；
Master key mk=hα；Wherein Bilinear Groups PG=(G, GT, e, p), simultaneous selection g, u, g1, g2..., gN, h ∈ G, from
GPOne parameter alpha of middle random selection calculates gα, e (h, h)αA symmetric encipherment algorithm is selected to be denoted as (E, D).
After step 1 is finished, step 2 is continued to execute；
Step2: input system parameter m, master key mk, register the property value set S of user, and trust authority return belongs to note
The key sks and part of key sks ' of volume user.It is specific to determine that method includes the following:
If the property set that each user is possessed is S, the number of attribute is no more than N in property set.It is infused when user issues
After volume request, trust authority receives property set S, and master key mk, system parameter m obtain private key sks and part of key after calculating
sks′。
Trust authority randomly chooses a random parameter r ∈ zP, calculated result is as follows:
With
User obtains private key and completes registration, and sks ' is transmitted to mist node.
After step 2 is finished, step 3 is continued to execute；
Step3: plaintext F is carried out with hash algorithm H by data uploader irreversible result f=H is calculated
(F), while key k=e (h, h) is calculatedfα；
After step 3 is finished, step 4 is continued to execute；
Step4: input access strategy P, system parameter m, mist node is by returning part ciphertext ct.
Mist node by access strategy P1 be converted into based on LSSS (linear secret sharing scheme) formed access structure (M,
ρ), process is as follows:
The corresponding attribute value of every a line, our defined function ρ (i) ∈ { Att1 ..., AttN } indicate every a line and each
The relationship mapped one by one between attribute.Mist node randomly chooses a random value t, and calculates outgoing vectorMist node is calculated againWherein i indicates the i-th row of Metzler matrix,
Mist node randomly chooses one group of Z1, Z2, Z3..., Zm∈Zp, for calculating, Fog algorithm input system parameter of reruning m and θj
Calculate part ciphertext ct:
Part ciphertext
Calculating, which is finished, is sent to data uploader for ct and access structure (M, ρ).
After step 4 is finished, step 5 is continued to execute；
Step5: input access strategy P, system parameter m, part ciphertext ct, data upload user will return to ciphertext CT.
Data upload user operation Enc algorithm importation ciphertext ct and system parameter m and cryptographic Hash f calculates ciphertext
CT:
Lp1 (k) is reached Cloud Server and stored by then Lp1 (k)=((M, ρ), CT), data uploader.
After step 5 is finished, step 6 is continued to execute；
Step6: input access strategy P, system parameter m, part ciphertext ct, mist node will return to calculated value W.
Mist node operation Foc algorithm, input system parameter m, part ciphertext ct, part private key sks ' and access strategy (M,
ρ) calculate:
Generate set IA, ρ={ I1..., Iq}: user meets the set of the smallest subset of the attribute of (M, ρ).If user
Attribute meets access structure, then constant collection { ω can be found in polynomial timei∈ZP}i∈I, wherein IJ∈IA, ρ, 1≤j≤
Q makes ∑i∈Iωiθi=t.
W is transmitted to user by mist node.
After step 6 is finished, step 7 is continued to execute；
Step7: input private key sks, system parameter m, mist node calculated result W, ciphertext CT, user construct key k and return
Data F after returning decryption.
User runs Dec algorithm, and by private key sks, ciphertext CT, system parameter m and mist node calculated result W are constructed
Key k:
End user is with the corresponding corresponding symmetrical confidentiality algorithm of key k to Ek(F) decryption obtains in plain text.
After step 7 is finished, step 8 is continued to execute；
Step8: input system parameter m, original access strategy P, original cipher text CT, new access strategy P ', new ciphertext
CT ', Cloud Server will return successfully or two kinds of failure can be added to cloud service as a result, successfully representing new access strategy P '
In device, failure then cannot.The integrality that user uploads data is expanded in Cloud Server inspection.
Step4 and Step5 is repeated by the new user of original access strategy and creates new access strategy P2, forms Lp2
(k ') is uploaded to cloud.Cloud Server is again from GPThe new parameter γ of middle random selection one constructs pseudo- master key, calculates this
Corresponding private key SKS and NKS ' under the pseudo- new and old access strategy of master key:
Whether repeating Step6 and Step7 calculating, to compare key corresponding to the two private keys identical.Because k=e (h,
h)αf, so representing if k is identical, f is identical, and f is to be obtained by plaintext by hash algorithm, whether f identical can represent it is bright
Whether text is identical, can detect whether the integrality of data F is destroyed.If do not destroyed, Cloud Server will be incited somebody to action
Lp2 (k ') is stored on cloud, then the data change on cloud is (Lp2 (k), Lp1 (k), E at this timek(F))。
Multiple key of the present invention towards cloud computing can sort cipher text retrieval method model in data upload and place
The relationship of reason is expressed as follows:
(1) trust authority is preset complete trust authority in system, when user issue registration request, trust authority according to
The attribute of user distributes private key and part private key to it.We assume that trust authority is will not mutually to hook with other any entities
Knot, will not be attacked；
(2) mist node is received access strategy that data uploader is created and is indicated using LSSS, with credible machine
The system parameter and access strategy generating portion ciphertext that structure generates.In user's decryption portion, mist node undertakes part calculating, will
Calculated result returns to user；
(3) data uploader is created that access strategy and sends it to mist node, will be in plain text with symmetric encipherment algorithm
It is encrypted by key, while hash algorithm is utilized to plaintext.The part ciphertext and visit calculated using system parameter and mist node
It asks that policy calculation goes out ciphertext and key, is uploaded to Cloud Server preservation；
(4) user issues registration request, obtains the private key that trust authority is distributed according to the attribute of each user itself.From cloud
Ciphertext and key of the server downloading by encryption, if user meets access strategy set by data uploader, then are used
The calculated result and private key and cryptogram computation drawn by mist node obtains key, and subsequent user can decrypt with key
To in plain text；
(5) whether identical as original key Cloud Server compares the key being calculated by new access strategy,
Identical, the integrality for representing clear data is not destroyed, and new access strategy can be added in Cloud Server.
Method provided by the present invention that is, on the basis of keeping original access strategy, then can be added with extended access strategy
New legal person is added to form new access strategy, whether the addition of new access strategy will not only confirm access user in the present invention
Meet access strategy set by data uploader, while can whether right when uploading new access strategy with test access user
Initial data is distorted, i.e., can not only protect to the integrality of initial data in system, while also confirmed to access
The loyalty of user.
Claims (9)
1. a kind of scalable accessing control method calculated towards mist, it is characterised in that: the following steps are included:
(1) it initializes system: generating system parameter and master key, the system parameter arbitrarily disclose, the master key is by credible
Mechanism saves；
(2) user's registration: the attribute distribution possessed according to user belongs to the private key of individual subscriber；
(3) data encryption: being handled with the plaintext that hash algorithm uploads data upload user, after obtaining a processing
Value, value COMPREHENSIVE CALCULATING after treatment obtains symmetric key using system parameter and in plain text；And the data upload user
By symmetric key to encrypting in plain text, encrypted data are uploaded to Cloud Server storage, by pre-set access
Strategy reaches mist node and is for further processing；
(4) access strategy and part ciphertext are formed, mist node includes converting access structure for access strategy according to LSSS and holding
Carry on a shoulder pole the calculating for part ciphertext；
(5) data upload user improves ciphertext, and data upload user treated according to system parameter and in plain text value is by part
Ciphertext supplement is complete, and ciphertext and access structure are then sent to Cloud Server and saved；
(6) mist node undertakes non-decryption portion data calculation amount again, by calculating to value will be transmitted to ordinary user rear
It is used in continuous decrypting process；
(7) ciphertext is decrypted in user, and user constructs key according to the private key of oneself, is decrypted with key pair ciphertext
It obtains in plain text；
(8) data uploaded for the user by access strategy extension carry out integrity checking, and Cloud Server is to new number
According to being checked, new data are added in cloud service if by checking, if it fails, if cannot expand again it is new
Access strategy.
2. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: the step
Suddenly (1) includes input security parameter 1λ, the attribute number N being arranged in access strategy, by trust authority generate system parameter m and
Master key mk, wherein system parameter m is arbitrarily disclosed, and master key mk is saved by trust authority；The system parameter m be (PG, g, u,
g1, g2..., gN, h, gα, e (h, h)α, (E, D)), master key mk=hα, wherein Bilinear Groups PG=(G, GT, e, p), it selects simultaneously
Select g, u, g1, g2..., gN, h ∈ G, from GPOne parameter alpha of middle random selection, calculates gα, e (h, h)α, select one symmetrically to add
Close algorithm is denoted as (E, D).
3. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: the step
Suddenly (2) include input system parameter m, master key mk, register the property value set S of user, and trust authority return belongs to registration and uses
The key sks and part of key sks ' at family, specifically include as follows:
If the property set that each user is possessed is S, the number of attribute is asked no more than N when user issues registration in property set
After asking, trust authority receives property set S, and master key mk, system parameter m obtain private key sks and part of key sks ' after calculating；
The trust authority randomly chooses a random parameter r ∈ ZP, calculated result is as follows:
With
Finally, user, which obtains private key, completes registration, and sks ' is transmitted to mist node.
4. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: the step
Suddenly (3) carry out plaintext F with hash algorithm H by data upload user irreversible result f=H (F) is calculated, and count simultaneously
It calculates key k=e (h, h)fα。
5. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: step
It (4) include input access strategy P, system parameter m, mist node is by returning part ciphertext ct；The mist node is by access strategy P1
It is converted into the access structure (M, ρ) formed based on LSSS, process is as follows:
According to the corresponding attribute value of every a line, defined function ρ (i) ∈ { Att1 ..., AttN } indicates every a line and each category
Property between the relationship that maps one by one, the mist node randomly chooses a random value t, and calculates outgoing vectorThe mist node is calculated againWherein i indicates the i-th of Metzler matrix
Row, mist node randomly choose one group of Z1, Z2, Z3,…,m∈Zp, for calculating, rerun Fog algorithm input system parameter m and
θjCalculate part ciphertext ct；The part ciphertext ct is expressed as follows:
Calculating, which is finished, is sent to data upload user for ct and access structure (M, ρ).
6. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: step
It (5) include input access strategy P, system parameter m, part ciphertext ct, data uploader will return to ciphertext CT, data uploader fortune
Row Enc algorithm importation ciphertext ct and system parameter m and cryptographic Hash f calculate ciphertext CT, and expression formula is as follows:
Lp1 (k) is reached Cloud Server and stored by then Lp1 (k)=((M, ρ), CT), data upload user.
7. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: step
It (6) include input access strategy P, system parameter m, part ciphertext ct, mist node will return to calculated value W, and mist node runs Foc and calculates
Method, input system parameter m, part ciphertext ct, part private key sks ' and access strategy (M, ρ) calculate as follows:
Generate set IA,ρ={ I1,…,Iq}: user meets the set of the smallest subset of the attribute of (M, ρ)；
If user property meets access structure, constant collection { ω is found in polynomial timei∈ZP}i∈I, wherein IJ∈
IA,ρ, 1≤j≤q makes ∑i∈Iωiθi=t；
Finally, W is transmitted to user by the mist node.
8. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: step
It (7) include input private key sks, system parameter m, mist node calculated result W, ciphertext CT, after user constructs key k return decryption
Data F；Then user runs Dec algorithm, by private key sks, ciphertext CT, system parameter m and mist node calculated result W structure
Build out key k:
Finally, user is with the corresponding corresponding symmetrical confidentiality algorithm of key k to Ek(F) decryption obtains in plain text.
9. a kind of scalable accessing control method calculated towards mist according to claim 1, it is characterised in that: step
It (8) include input system parameter m, original access strategy P, original cipher text CT, new access strategy P ', new ciphertext CT ', cloud service
Device will return successfully or two kinds of failure is as a result, successfully representing new access strategy P ' can be added in Cloud Server, unsuccessfully
Then cannot；The integrality that user uploads data is expanded in the Cloud Server inspection；It is repeated by the new user of original access strategy
Step (4) and (5) create new access strategy P2, form Lp2 (k ') and are uploaded to cloud；
Cloud Server is again from GPThe new parameter γ of middle random selection one constructs pseudo- master key, and it is new and old to calculate the puppet master key
Corresponding private key SKS and NKS ' under access strategy:
It repeats step (6) and (7) and calculates whether compare key corresponding to the two private keys identical to determine whether by broken
Bad, if not destroyed, Lp2 (k ') will be stored on cloud by Cloud Server, then the data change on cloud is (Lp2 at this time
(k), Lp1 (k), Ek(F))。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019362.8A CN109936562B (en) | 2019-01-09 | 2019-01-09 | Extensible access control method for fog computing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019362.8A CN109936562B (en) | 2019-01-09 | 2019-01-09 | Extensible access control method for fog computing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109936562A true CN109936562A (en) | 2019-06-25 |
| CN109936562B CN109936562B (en) | 2021-07-27 |
Family
ID=66984959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910019362.8A Active CN109936562B (en) | 2019-01-09 | 2019-01-09 | Extensible access control method for fog computing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109936562B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062043A (en) * | 2019-11-29 | 2020-04-24 | 清华大学 | Medical image identification method and system based on edge calculation |
| CN111372243A (en) * | 2020-03-18 | 2020-07-03 | 南京邮电大学 | Safe distributed aggregation and access system and method based on fog alliance chain |
| CN117632858A (en) * | 2024-01-24 | 2024-03-01 | 中国信息通信研究院 | File format verification method, system, equipment and medium based on distributed network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357395A (en) * | 2016-09-13 | 2017-01-25 | 深圳大学 | Outsourcing access control method and system aiming at fog computing |
| CN107222843A (en) * | 2017-06-30 | 2017-09-29 | 西安电子科技大学 | Towards the mist real-time performance system and method for indoor positioning |
| CN108881314A (en) * | 2018-08-28 | 2018-11-23 | 南京邮电大学 | Mist calculates the method and system for realizing secret protection under environment based on CP-ABE ciphertext access control |
| CN108900621A (en) * | 2018-07-10 | 2018-11-27 | 华侨大学 | A kind of otherness cloud synchronous method calculating mode based on mist |
| EP3407194A2 (en) * | 2018-07-19 | 2018-11-28 | Erle Robotics, S.L. | Method for the deployment of distributed fog computing and storage architectures in robotic modular components |
-
2019
- 2019-01-09 CN CN201910019362.8A patent/CN109936562B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357395A (en) * | 2016-09-13 | 2017-01-25 | 深圳大学 | Outsourcing access control method and system aiming at fog computing |
| CN107222843A (en) * | 2017-06-30 | 2017-09-29 | 西安电子科技大学 | Towards the mist real-time performance system and method for indoor positioning |
| CN108900621A (en) * | 2018-07-10 | 2018-11-27 | 华侨大学 | A kind of otherness cloud synchronous method calculating mode based on mist |
| EP3407194A2 (en) * | 2018-07-19 | 2018-11-28 | Erle Robotics, S.L. | Method for the deployment of distributed fog computing and storage architectures in robotic modular components |
| CN108881314A (en) * | 2018-08-28 | 2018-11-23 | 南京邮电大学 | Mist calculates the method and system for realizing secret protection under environment based on CP-ABE ciphertext access control |
Non-Patent Citations (2)
| Title |
|---|
| 周静: "基于属性的可搜索加密方案的应用研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 孙岩: "雾计算环境下资源管理模型及算法研究", 《中国博士学位论文全文数据库 信息科技辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062043A (en) * | 2019-11-29 | 2020-04-24 | 清华大学 | Medical image identification method and system based on edge calculation |
| CN111062043B (en) * | 2019-11-29 | 2022-05-20 | 清华大学 | Medical image identification method and system based on edge calculation |
| CN111372243A (en) * | 2020-03-18 | 2020-07-03 | 南京邮电大学 | Safe distributed aggregation and access system and method based on fog alliance chain |
| CN111372243B (en) * | 2020-03-18 | 2023-05-12 | 南京邮电大学 | Security distributed aggregation and access system and method based on fog alliance chain |
| CN117632858A (en) * | 2024-01-24 | 2024-03-01 | 中国信息通信研究院 | File format verification method, system, equipment and medium based on distributed network |
| CN117632858B (en) * | 2024-01-24 | 2024-05-31 | 中国信息通信研究院 | File format verification method, system, equipment and medium based on distributed network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109936562B (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Full verifiability for outsourced decryption in attribute based encryption | |
| CN112019591B (en) | Cloud data sharing method based on block chain | |
| CN108632032B (en) | Safe multi-keyword sequencing retrieval system without key escrow | |
| CN109614818B (en) | Authorized identity-based keyword search encryption method | |
| CN103731432B (en) | Multi-user supported searchable encryption method | |
| Kaaniche et al. | A secure client side deduplication scheme in cloud storage environments | |
| CN108881314B (en) | Privacy protection method and system based on CP-ABE ciphertext under fog computing environment | |
| CN104980477B (en) | Data access control method and system under cloud storage environment | |
| CN109450935A (en) | The multi-key word searching method for the Semantic Security that can verify that in cloud storage | |
| CN111526197B (en) | Cloud data secure sharing method | |
| CN107734021A (en) | block chain data uploading method, system, computer system and storage medium | |
| CN104320393B (en) | The controllable efficient attribute base proxy re-encryption method of re-encryption | |
| CN107483585A (en) | The efficient data integrality auditing system and method for safe duplicate removal are supported in cloud environment | |
| CN104468615A (en) | Data sharing based file access and permission change control method | |
| US20230019301A1 (en) | Attribute-based encryption (abe) method with multiple tracing attribute authorities for cloud-assisted internet-of-things (iot) | |
| CN107547530A (en) | On-line/off-line keyword search methodology and its cloud computing application system based on attribute under mobile cloud environment | |
| CN106101257A (en) | A kind of cloud storage data managing method based on Bloom filter and device | |
| CN104967693A (en) | Document similarity calculation method facing cloud storage based on fully homomorphic password technology | |
| CN111902809B (en) | Ciphertext searching method, device, equipment and storage medium based on CP-ABE under fog calculation | |
| CN109936562A (en) | A kind of scalable accessing control method calculated towards mist | |
| Guo et al. | Enabling privacy-preserving geographic range query in fog-enhanced IoT services | |
| Kumar et al. | Data outsourcing: A threat to confidentiality, integrity, and availability | |
| CN111159352B (en) | Encryption and decryption method supporting multi-keyword weighted retrieval and result ordering and capable of being verified | |
| CN108595554A (en) | A kind of more range of attributes querying methods based on cloud environment | |
| CN116232639B (en) | Data transmission method, device, computer equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |