CN113660276A - Remote task scheduling method based on privacy data protection - Google Patents
Remote task scheduling method based on privacy data protection Download PDFInfo
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- CN113660276A CN113660276A CN202110951029.8A CN202110951029A CN113660276A CN 113660276 A CN113660276 A CN 113660276A CN 202110951029 A CN202110951029 A CN 202110951029A CN 113660276 A CN113660276 A CN 113660276A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 42
- 239000003999 initiator Substances 0.000 claims abstract description 27
- 230000000977 initiatory effect Effects 0.000 claims abstract description 12
- 238000013144 data compression Methods 0.000 claims description 7
- 238000000586 desensitisation Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000013475 authorization Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011157 data evaluation Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
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- Computer Networks & Wireless Communication (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a remote task scheduling method based on privacy data protection, which comprises the following steps: s1: dividing network equipment to be scheduled into a task initiator and a task processor; s2: processing original data in the remote task to obtain encrypted data; s3: generating a task message, encrypting the task message and transmitting the encrypted task message to a task processing party; s4: decrypting the task message to obtain a public key and an interface; s5: and the task processing party acquires the encrypted data by using the interface, encrypts an execution result and sends the encrypted execution result to the task initiating party to complete remote task scheduling. The remote task scheduling method utilizes a uniform API (application programming interface) interface to package a remote task scheduling method, is suitable for networks without trust or with low trust, and utilizes a third-party protocol to perform security authentication on a task initiator and a task processor. And the third-party trusted server is used for authorizing both parties of the task, so that the safety of the whole network is ensured, and the burden of both parties is reduced.
Description
Technical Field
The invention belongs to the technical field of data security, and particularly relates to a remote task scheduling method based on privacy data protection.
Background
And generating a key pair through the certificate generator, wherein the private key is stored in each node, the public key is stored in a public third-party server, and the nodes in the network can obtain the public key of the required node. A third party authentication protocol is a computer network authorization protocol used to authenticate personal communications in a secure manner in an unsecure network. And generating a key pair with required strength according to the specific requirements of the system and the user, and ensuring the safety service with corresponding strength.
The existing remote task scheduling method has the problems that two nodes are not trusted, private data is leaked due to the fact that data is not subjected to desensitization processing or desensitization is incomplete, and remote transmission efficiency is low due to the fact that the data volume is too large, and specific methods such as MapReduce and Hadoop pay focus on task scheduling performance, but lack privacy protection, data security and data compression improvement.
At present, secure multi-party computing (SMC) and Differential Privacy (DP) are often used in multi-party computing for protecting privacy data, and although privacy protection is improved in the prior art, the problems of low efficiency caused by overlarge data volume and large computing consumption exist.
Disclosure of Invention
The invention aims to solve the problem of safety in a task scheduling process and provides a remote task scheduling method based on privacy data protection.
The technical scheme of the invention is as follows: a remote task scheduling method based on privacy data protection comprises the following steps:
s1: dividing network equipment to be scheduled into a task initiator and a task processor;
s2: processing original data in a remote task through a task initiator to obtain encrypted data;
s3: generating a task message, encrypting the task message and transmitting the encrypted task message to a task processing party;
s4: decrypting the task message through the task processing party to obtain a public key and an interface;
s5: and the task processing party acquires the encrypted data by using the interface, encrypts an execution result and sends the encrypted execution result to the task initiating party to complete remote task scheduling.
Further, step S2 includes the following sub-steps:
s21: dividing original data in a remote task into private data and non-private data;
s22: generating key pairs with different strengths according to the security level required by the task and the network environment;
s23: desensitizing the private data, and performing data compression on the non-private data and the desensitized private data to obtain compressed desensitized data;
s24: the compressed desensitized data is encrypted using a key pair with an encryption function resulting in encrypted data.
Further, in step S5, the specific method for performing remote task scheduling is as follows: and the task processing party acquires the encrypted data and the corresponding key pair from the task initiating party by using the interface, executes the corresponding task after decrypting the data by using the interface calling private method, encrypts the execution result and transmits the encrypted execution result to the task initiating party to complete remote task scheduling.
The invention has the beneficial effects that:
(1) the initiator of the task and the processor of the task carry out scheduling of the remote task through the same remote task scheduling interface, so that the remote task scheduling interface is easier to use and ensures the safety of the data processing process.
(2) The security of the key pair used by both sides of the task can be dynamically adjusted according to the parameters, and the security and the operation efficiency are balanced.
(3) The remote task scheduling method is suitable for a network without trust, and a third-party protocol is adopted to perform security authentication on a task initiator and a task processor. And the third-party trusted server is used for authorizing both parties of the task, so that the safety of the whole network is ensured, and the burden of both parties is reduced.
(4) The original data of the task is encrypted by the task initiator, so that the data desensitization effect is achieved, the volume of the data is reduced, the transmission time is reduced, and the task throughput of the whole edge network is improved.
(5) The data processing of the task processing party is completed by a private method in an interface given by the task issuing party, so that the privacy of the original data is protected. The remote scheduling of tasks is realized in the edge network, and the leakage of private data is avoided. And the functions are provided for the task executing party through a uniform interface, so that the operation logic of the task issuing party is simplified.
Drawings
FIG. 1 is a flow chart of a method of remote task scheduling;
FIG. 2 is a flow diagram of task initiator data processing;
fig. 3 is a schematic diagram illustrating data transmission from a task initiator to a task handler.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Before describing specific embodiments of the present invention, in order to make the solution of the present invention more clear and complete, the definitions of the abbreviations and key terms appearing in the present invention will be explained first:
computer network authorization protocol: a computer network authorization protocol for authenticating personal communications in a secure manner in an unsecure network.
And the key generation function runs at the task initiator and generates a key pair with specific strength according to the requirements of the user and the network environment, and the keys are used for data encryption.
And the encryption function runs on the task initiator and is used for encrypting the private data by using the secret key.
And the evaluation function runs on the task processing side and is used for judging whether the encryption strength is enough or not. The strength of the key pair can be adjusted in real time according to the security level requirement specified by the user, the network environment and other information.
And the decryption function runs on the task initiator and is used for decrypting the ciphertext by using the key to obtain a processed result.
The specific form of the above function is determined by the encryption algorithm used in the specific implementation.
As shown in fig. 1, the present invention provides a remote task scheduling method based on private data protection, which includes the following steps:
s1: dividing network equipment to be scheduled into a task initiator and a task processor;
s2: processing original data in a remote task through a task initiator to obtain encrypted data;
s3: generating a task message, encrypting the task message and transmitting the encrypted task message to a task processing party;
s4: decrypting the task message through the task processing party to obtain a public key and an interface;
s5: and the task processing party acquires the encrypted data by using the interface, encrypts an execution result and sends the encrypted execution result to the task initiating party to complete remote task scheduling.
Firstly, devices in a network are divided into a task initiator and a task processor, wherein the task initiator has tasks needing calculation processing, but the tasks need to be handed to other devices in the network for calculation processing due to the consideration of efficiency or hardware limitation of the task initiator. Where it is the task handler that provides it with the remote processing task capabilities.
In the embodiment of the present invention, as shown in fig. 2, step S2 includes the following sub-steps:
s21: dividing original data in a remote task into private data and non-private data;
s22: generating key pairs with different strengths according to the security level required by the task and the network environment;
s23: desensitizing the private data, and performing data compression on the non-private data and the desensitized private data to obtain compressed desensitized data;
s24: the compressed desensitized data is encrypted using a key pair with an encryption function resulting in encrypted data.
The task initiator has the raw data and the associated task program. However, the task issuing party does not need to complete all tasks on its own computing unit, and it only needs to desensitize and compress the data, so that the data processing party can not restore the original data.
A privacy data evaluation link is arranged before data desensitization, the link is used for dividing data into privacy data and non-privacy data, desensitization processing is not needed for the non-privacy data, and workload of the data desensitization link is reduced.
Data desensitization uses encryption technology to protect private data, a task processing party can process the encrypted data, meanwhile, the data calculation can not be influenced, and a task initiating party just obtains a processed result after decrypting the processed encrypted data by using a secret key.
The last operation before the task publisher sends the data is data compression, wherein the data is compressed by using a method combining data compression and repeated data deletion so as to reduce the volume of the data, and particularly, the utilization rate of the data is improved when a large amount of repeated data exists.
In the embodiment of the present invention, in step S22, the strength of the key pair corresponds to the security level required by the task, where the higher the security level required by the task is, the stronger the strength of the key pair is; the corresponding relationship between the strength of the key pair and the network environment is that the more dangerous the network environment is, the stronger the strength of the key pair is.
In the embodiment of the present invention, in step S22, two pairs of key pairs are obtained, and the two pairs of key pairs are used in the following two stages, where one stage is that when a task initiator sends a task packet to a task processor, the task initiator obtains a public key of the task processor from a third-party authentication server to encrypt the task packet, and the task processor decrypts the task packet using a private key; the other phase is that two pairs of keys are required for bidirectional encrypted transmission when both parties transmit encrypted data and task processing results.
In the embodiment of the present invention, in step S24, the specific method for encrypting the compressed desensitized data by using the encryption function and using the key pair is as follows: the compressed desensitized data is encrypted using the public key using an encryption function using the public key of the key pair generated in step S22.
In this embodiment of the present invention, in step S2, a specific method for processing the original task information is as follows: and encrypting the original task information and converting the original task information into a ciphertext.
The task issuing party needs to convert the original task program into the ciphertext through the encryption program and transmit the ciphertext through the interface. The data is transmitted between the interfaces, and after transmission, the data is converted back to the application program through the decryption function. The decryption function is responsible for decrypting the ciphertext. After transmitting the instruction and the processed data, the task initiator waits for the task processor to complete the task and receive the result.
In this embodiment of the present invention, as shown in fig. 3, in step S5, a specific method for performing remote task scheduling is as follows: and the task processing party acquires the encrypted data and the corresponding key pair from the task initiating party by using the interface, executes the corresponding task after decrypting the data by using the interface calling private method, encrypts the execution result and transmits the encrypted execution result to the task initiating party to complete remote task scheduling.
The interface obtained by the task processing party actively communicates with the interface of the task initiating party, and the interface encrypts the result by using a secret key of a third party authentication protocol and transmits the result to the interface of the task issuing party. The interface of the task issuing party firstly encrypts the message by using a secret key of a third party authentication protocol, and then calls a decryption function to decrypt the result of the private data by using a private key of the task issuing party. By this point, the task has completed and the task results have been obtained.
In an embodiment of the invention, before starting to perform remote scheduling of tasks, both parties need to establish a trusted communication pipe and confirm that the other party is a trusted device. The devices have unique identification codes for identity determination, but it is impossible to determine whether the corresponding devices are authentic. It is therefore contemplated herein to use an authentication mechanism based on a third party authentication protocol. Third party authentication protocols are used to address distributed network authentication. Each entity on the network holds a different key, which is known to be proof of identity. Third party authentication services on the network act as trusted arbiters and can provide secure network authentication. The third party authentication service has bidirectional identity authentication, and is responsible for authenticating a task initiator and a task processor in the network.
The working principle and the process of the invention are as follows: the invention relates to a remote task scheduling method for protecting private data, which is suitable for the situation that any equipment which is not mutually trusted wants to perform task scheduling remotely, and provides a set of uniform remote task scheduling interface. Because the processing capacity of the edge node is limited, tasks need to be scheduled to other nodes for processing, and a part of computing work needs to be handed over to other computing devices for processing. But when this occurs in a distributed network environment authentication and desensitization to the original data is required. The role of identity authentication is to find trusted devices in the public network, avoiding the issue of tasks to the wrong device. The purpose of desensitization processing is to avoid the other party obtaining own original data, especially private data, and to avoid the other party obtaining the private data, and meanwhile, the result of data processing is not influenced. Meanwhile, remote task scheduling needs to be carried out between the task issuing party and the task processing party through an interface, and the two parties carry out communication on the network after being encrypted through the interface. And data desensitization, data compression, task scheduling and authentication services are encapsulated into a set of uniform interfaces to provide services for both task parties.
The invention has the beneficial effects that:
(1) the initiator of the task and the processor of the task carry out scheduling of the remote task through the same remote task scheduling interface, so that the remote task scheduling interface is easier to use and ensures the safety of the data processing process.
(2) The security of the key pair used by both sides of the task can be dynamically adjusted according to the parameters, and the security and the operation efficiency are balanced.
(3) The remote task scheduling method is suitable for a network without trust, and a third-party protocol is adopted to perform security authentication on a task initiator and a task processor. And the third-party trusted server is used for authorizing both parties of the task, so that the safety of the whole network is ensured, and the burden of both parties is reduced.
(4) The original data of the task is encrypted by the task initiator, so that the data desensitization effect is achieved, the volume of the data is reduced, the transmission time is reduced, and the task throughput of the whole edge network is improved.
(5) The data processing of the task processing party is completed by a private method in an interface given by the task issuing party, so that the privacy of the original data is protected. The remote scheduling of tasks is realized in the edge network, and the leakage of private data is avoided. And the functions are provided for the task executing party through a uniform interface, so that the operation logic of the task issuing party is simplified.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (3)
1. A remote task scheduling method based on privacy data protection is characterized by comprising the following steps:
s1: dividing network equipment to be scheduled into a task initiator and a task processor;
s2: processing original data in a remote task through a task initiator to obtain encrypted data;
s3: generating a task message, encrypting the task message and transmitting the encrypted task message to a task processing party;
s4: decrypting the task message through the task processing party to obtain a public key and an interface;
s5: and the task processing party acquires the encrypted data by using the interface, encrypts an execution result and sends the encrypted execution result to the task initiating party to complete remote task scheduling.
2. The method for remote task scheduling based on private data protection according to claim 1, wherein the step S2 includes the following sub-steps:
s21: dividing original data in a remote task into private data and non-private data;
s22: generating key pairs with different strengths according to the security level required by the task and the network environment;
s23: desensitizing the private data, and performing data compression on the non-private data and the desensitized private data to obtain compressed desensitized data;
s24: the compressed desensitized data is encrypted using a key pair with an encryption function resulting in encrypted data.
3. The remote task scheduling method based on private data protection according to claim 2, wherein in step S5, the specific method for performing remote task scheduling is: and the task processing party acquires the encrypted data and the corresponding key pair from the task initiating party by using the interface, executes the corresponding task after decrypting the data by using the interface calling private method, encrypts the execution result and transmits the encrypted execution result to the task initiating party to complete remote task scheduling.
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Application publication date: 20211116 |