CN108206834A

CN108206834A - Processing method, the device and system of center service request

Info

Publication number: CN108206834A
Application number: CN201810301358.6A
Authority: CN
Inventors: 于涛
Original assignee: Shenzhen Yihua Computer Co Ltd; Shenzhen Yihua Time Technology Co Ltd; Shenzhen Yihua Financial Intelligent Research Institute
Current assignee: Shenzhen Yihua Computer Co Ltd; Shenzhen Yihua Time Technology Co Ltd; Shenzhen Yihua Financial Intelligent Research Institute
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2018-06-26
Anticipated expiration: 2038-04-04
Also published as: CN108206834B

Abstract

Processing method, device and system the invention discloses a kind of request of center service.This method includes：The center service performed by Centroid that a upper network node is sent is received to ask；If itself is the non-central node of current network, the next shadow node for receiving the center service request is chosen in the shadow node listing being locally stored, and center service request is sent to next shadow node；And it receives the center service that next shadow node returns and asks corresponding request response message, and the request response message is sent to a upper network node；If itself is the Centroid of current network, request response message corresponding with center service request is generated, and the request response message is sent to a upper network node.The embodiment of the present invention can improve the safety of Centroid in network system by using above-mentioned technical proposal.

Description

Processing method, the device and system of center service request

Technical field

The present invention relates to block chain technical field more particularly to a kind of processing method of center service request, device and it is System.

Background technology

In recent years, as the promotion of people's information security consciousness and the accelerating rhythm of life, datalink are also gradual The visual field of people is entered into, more and more applications have been obtained in every profession and trades such as Internet of Things.

Ideal block chain technology is to establish the distributed account book of a set of decentralization, i.e., the data in entire block chain by All distributed nodes safeguard jointly, and the data in all distributed nodes in block chain are identical and all distributed sections The rights and duties of point are all impartial, and there is no the hardware or administrative mechanism of centralization.But due under line assets reach the standard grade, Confidence level of assets etc. is required for effective table easily to identify mode, also, the critical asset in network similarly needs to carry out Corresponding supervision, therefore, in practical application, special Centroid would generally be set in a network, to pass through the centromere Point completes that the information such as the assets in network are identified and supervised.The IP address of Centroid is sent at this point, generally requiring To each distributed node in network, so as to ensure that corresponding information can be sent to centromere by each all distributed nodes Point is so that Centroid is identified and is supervised.

But in the prior art, generally there are be relatively subject to distributed denial of service (Distributed for Centroid Denial of Service, DDOS) attack risk, safety is relatively low, cause center service in network other are distributed The response efficiency of node is relatively low, can not meet the use demand of distributed node user.

Invention content

In view of this, the embodiment of the present invention provides a kind of processing method, the device and system of center service request, to solve The technical issues of Centroid is subject to DDOS attack in the prior art, safety is relatively low.

In a first aspect, an embodiment of the present invention provides a kind of processing method of center service request, including：

The center service performed by Centroid that a upper network node is sent is received to ask；

If itself is the non-central node of current network, is chosen in the shadow node listing being locally stored and receive institute Next shadow node of center service request is stated, and center service request is sent to next shadow node；And It receives the center service that next shadow node returns and asks corresponding request response message, and the request is responded Information is sent to a upper network node；

If itself is the Centroid of current network, request response letter corresponding with center service request is generated Breath, and the request response message is sent to a upper network node.

Second aspect, an embodiment of the present invention provides another center service request processing method, including：

When the Centroid into current network is needed to obtain center service, generation center service request；

A shadow node is chosen in the shadow node listing being locally stored as first object shadow node, by described in Center service request is sent to the first object shadow node, and receive that the first object shadow node returns it is described in Central server asks corresponding request response message.

The third aspect, an embodiment of the present invention provides a kind of center service request processing unit, including：

Service request reception module, please for receiving the center service performed by Centroid that a upper network node is sent It asks；

Service request forwarding module, in response to the situation of non-central node that itself is current network, being deposited locally The next shadow node for receiving the center service request is chosen in the shadow node listing of storage, and the center service is asked It is sent to next shadow node；And the center service request that reception next shadow node returns is corresponding Response message is asked, and the request response message is sent to a upper network node；

Service request handling module, in response to itself for current network Centroid situation, generation with it is described Center service asks corresponding request response message, and the request response message is sent to a upper network node.

Fourth aspect, an embodiment of the present invention provides another center service request processing unit, including：

Service request generation module, for when the Centroid into current network is needed to obtain center service, generating Center service is asked；

Service request sending module, for choosing a shadow node in the shadow node listing being locally stored as the Center service request is sent to the first object shadow node, and receive first mesh by one intended shadow node It marks the center service that shadow node returns and asks corresponding request response message.

5th aspect, an embodiment of the present invention provides a kind of shadow node, including：

One or more processors；

Memory, for storing one or more programs,

When one or more of programs are performed by one or more of processors so that one or more of processing Device realizes the processing method of the center service request described in the embodiment of the present invention.

6th aspect, an embodiment of the present invention provides a kind of network node, including：

One or more processors；

Memory, for storing one or more programs,

7th aspect, the embodiment of the present invention additionally provides a kind of processing system of center service request, including shadow node And network node, wherein,

The network node, for when the Centroid into current network is needed to obtain center service, generating center Service request；A shadow node is chosen in the shadow node listing being locally stored and is sent to center service request The shadow node；

The shadow node, for receiving the center service performed by Centroid the request that the network node is sent； It is genuinely convinced during selection reception is described in the shadow node listing being locally stored if itself is the non-central node of current network Next shadow node of business request, and center service request is sent to next shadow node；And described in reception The center service that next shadow node returns asks corresponding request response message, and the request response message is sent To the network node；If itself is the Centroid of current network, generation is corresponding with center service request please Response message is sought, and the request response message is sent to the network node；

The network node is additionally operable to receive the corresponding request sound of center service request that the shadow node returns Answer information.

In the process above in the technical solution of central server request, being held by Centroid for upper network node transmission is received Capable center service request, if itself is the non-central node of current network, in the shadow node listing being locally stored Next shadow node is chosen, center service request is sent to next shadow node, receives what next shadow node returned The center service asks corresponding request response message, and received request response message is sent to dispatching centre service A upper network node for request；If itself is the Centroid of current network, generation is corresponding with center service request please Response message is sought, and the request response message is sent to a upper network node for dispatching centre service request.In above-mentioned processing The technical solution of central server request can improve the safety of Centroid in network system, reduce Centroid and be distributed The probability of formula Denial of Service attack.

Description of the drawings

By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other Feature, objects and advantages will become more apparent upon：

Fig. 1 is the flow diagram of the processing method of a kind of center service request that the embodiment of the present invention one provides；

Fig. 2 is a kind of flow diagram of the processing method of center service request provided by Embodiment 2 of the present invention；

Fig. 3 A are the flow diagram of the processing method of a kind of center service request that the embodiment of the present invention three provides；

Fig. 3 B are the structure diagram of a kind of KAD networks that the embodiment of the present invention three provides；

Fig. 3 C are the query process schematic diagram of a kind of destination node that the embodiment of the present invention three provides；

Fig. 4 is the flow diagram of the processing method of a kind of center service request that the embodiment of the present invention four provides；

Fig. 5 is the flow diagram of the processing method of a kind of center service request that the embodiment of the present invention five provides；

Fig. 6 is the structure diagram of the processing unit of a kind of center service request that the embodiment of the present invention six provides；

Fig. 7 is the structure diagram of the processing unit of a kind of center service request that the embodiment of the present invention seven provides；

Fig. 8 is the structure diagram of a kind of shadow node that the embodiment of the present invention eight provides；

Fig. 9 is the structure diagram of a kind of network node that the embodiment of the present invention nine provides；

Figure 10 is the structure diagram of the processing system of a kind of center service request that the embodiment of the present invention ten provides.

Specific embodiment

The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just Part related to the present invention rather than full content are illustrated only in description, attached drawing.

Embodiment one

The embodiment of the present invention one provides a kind of processing method of center service request.This method can have center service request Processing unit perform, wherein, which by software and or hardware realization, can generally be integrated in the shadow section of network system Point in.Fig. 1 is the flow diagram of the processing method of center service request that the embodiment of the present invention one provides, as shown in Figure 1, should Method includes：

S101, receive the center service performed by Centroid that a upper network node is sent and ask, execution S102 or S103。

Here, center service request can be understood as other network nodes in current network (in non-in shadow node Heart node and non-shadow node) to Centroid obtain center service when transmitted request, center service request can be The center service for being generated by a upper network node or being forwarded is asked, that is, the generation side of center service request can be a upper network Other nodes in node or current network.Wherein, a upper network node can be shadow of the current network in addition to Centroid Ordinary node (i.e. non-shadow node) in child node or current network, center service request can be transaction request, transaction letter Breath audit request etc., is not restricted herein.

In the present embodiment, local terminal can be based on wired communication protocol or wireless communication protocol, such as bluetooth, LAN or wide area Net etc. receives the center service request that a upper network node is sent.In addition to being asked except center service, local terminal is also possible to connect The service request that other network nodes by local terminal or in addition to Centroid perform is received, therefore, in practical operation, local terminal exists After receiving service request, received service request can be parsed, to determine whether the service request is in The center service request that heart node performs, if so, continuing to execute subsequent operation；It if it is not, then can be based on the service request Execution side's information or preset processing strategy handle service request, generate the corresponding response letter of the service request Breath, alternatively, the service request to be transmitted to other network nodes in current network.

If S102, the non-central node that itself is current network, choose in the shadow node listing being locally stored Next shadow node of the center service request is received, and center service request is sent to next shadow section Point；And it receives the center service that next shadow node returns and asks corresponding request response message, and by described in Request response message is sent to a upper network node, end operation.

In the present embodiment, the non-central node center service that a network node is sent on receiving in shadow node please After asking, next shadow node can be chosen in shadow node listing, and according to the IP address of next shadow node by the center Service request is transmitted to next shadow node, if next shadow node is still non-central, can continue to execute to center The operation that service request is forwarded, and so on, node is centered on receiving the shadow node of center service request Only.Wherein, shadow node listing can be stored in advance in local, can include all or part of shadow section in current network Point；The determining method of next shadow node can be arranged as required in shadow node listing, can such as randomly select a shadow Under child node is used as the ID distances of next shadow node, selection identity ID with the immediate shadow nodes of identity ID of itself Adjacent with local terminal in shadow node listing and after local terminal shadow node is determined as next shadow section by one shadow node Point, selection response speed is most fast or the longest shadow node of line duration is as next shadow node, etc., does not limit herein System.

Herein, it should be noted that local terminal can be considered when determining and receiving next shadow node of center service request Or do not consider that the history of center service request sends situation.In order to ensure that center service request can be ultimately sent to centromere Point, and further improve the speed that center service request is sent to Centroid, optionally, the operation of dispatching centre service request It is preferred that not nested execution, at this point, local terminal is after center service request is received, it can be determined that itself whether have been received by (or Send) center service request is crossed, if so, can choose what shadow node different when being sent from last time was sent as this Next shadow node, and center service request is sent to next shadow node.

Correspondingly, non-central node in shadow node is by center service request after next shadow node is transmitted to, The request response message that next shadow node returns can also be received and the request response message is transmitted to a upper network node, The generation side that a upper network node is asked if not center service can then perform request response message forwarding operation, with This analogizes, until receive request response message network node centered on service request generation side until, so as to fulfill right The response of center service request that the center service side of requesting to generate is generated.Wherein, centered on request response message is appreciated that Obtained handling result after node handles center service request, if for example, center service request is request of data, Ask response message can centered on node return the requested data of the request of data,；If center service request is hands over Easy signal auditing request, then ask response message can centered on node to auditing result of Transaction Information, etc..

In the present embodiment, local terminal determines whether itself is that the method for Centroid (or non-central node) of current network can To be arranged as required to, for example, whether local terminal can obtain the identification information of itself and judge in the identification information comprising center Node identification, if so, judge itself be current network Centroid, if it is not, then judge itself for current network it is non-in Heart node；Alternatively, local terminal can also be handled (as generation is corresponding with center service request the center service request received Request response message), if handling the Centroid for successfully, judging that itself is current network, if correspondingly, processing failure, Then judge the non-central node that itself is current network.

If S103, the Centroid that itself is current network, generation and the corresponding request of center service request Response message, and the request response message is sent to a upper network node.

In the present embodiment, if local terminal is the Centroid of current network, it is genuinely convinced that corresponding service centering can be based on Business request is handled, and generation center service asks corresponding request response message, and by the request response message be sent to A upper network node for local terminal dispatching centre service request, so as to by the request response message it is direct or indirect be sent to center The generation side of service request.

The processing method of center service request that the embodiment of the present invention one provides, receive the transmission of a upper network node in The center service request that heart node performs, if itself is the non-central node of current network, in the shadow section being locally stored Next shadow node is chosen in point list, center service request is sent to next shadow node, receives next shadow section The center service that point returns asks corresponding request response message, and will received request response message be sent to hair The upper network node that center service is sent to ask；If itself is the Centroid of current network, generation please with center service Corresponding request response message is sought, and the request response message is sent to a upper network node for dispatching centre service request. The present embodiment by using above-mentioned technical proposal, centered on node setting shadow node, centromere in network system can be improved The safety of point reduces probability of the Centroid by distributed denial of service attack.

Embodiment two

Fig. 2 is a kind of flow diagram of the processing method of center service request provided by Embodiment 2 of the present invention.This reality It applies example to optimize on the basis of above-described embodiment, in the present embodiment, " will select in the shadow node listing being locally stored Take the next shadow node for receiving the center service request " it is optimized for：It chooses and rings in the shadow node listing being locally stored Fastest shadow node is answered as the next shadow node for receiving the center service request.

Further, the processing method of center service request provided in this embodiment can also include：If itself is works as The Centroid of preceding network, then reach the renewable time of shadow node and/or detected at current time and exist in current network By DDOS attack shadow node when, update current network in shadow node.

Correspondingly, as shown in Fig. 2, the processing method of center service provided in this embodiment request includes：

S201, receive the center service performed by Centroid that a upper network node is sent and ask, execution S202 or S204。

If S202, the non-central node that itself is current network, choose in the shadow node listing being locally stored The most fast shadow node of response speed is as the next shadow node for receiving center service request, and by the center service Request is sent to next shadow node.

In the present embodiment, it can preferably choose the shadow node that response speed is most fast in shadow node listing and be used as in reception Next shadow node of central server request, to further improve the response speed of center service request.Wherein, response speed is most fast Can be for whole shadow nodes in shadow node listing or with regard to shadow node listing in known to response speed Shadow node for；The response speed can be the service request performed by the shadow node that shadow node sends local terminal Response speed or the response speed asked the center service of being performed by Centroid of sending of local terminal of shadow node Degree.In order to further improve the processing speed of center service request, it is preferred that the response speed can be respective shadow node pair The response speed of center service request that local terminal is sent, at this point, the most fast shadow node of response speed can for the first time be sent out in local terminal It is based on being sent to local terminal from center service request when sending the center service to ask and receives the corresponding request response of center service request The time span that information is undergone determines.

Optionally, after the most fast shadow node of response speed is determined, it can also further judge that the shadow node is It is no online, if so, the shadow node can be determined as to next shadow node；If it is not, center service can then be asked to send out The part or all of shadow node in shadow node listing is given, to redefine the most fast shadow node of response speed.With KAD (for (Kademlia) network, local terminal can instruct the shadow node most fast to response speed to detect by PING, with true Whether the most fast shadow node of the fixed response speed is online.

At this point, correspondingly, the processing method of center service provided in this embodiment request can also include：If it connects for the first time It receives center service request or next shadow node is in off-line state, then it can be to the shadow node listing being locally stored In part or all of shadow node send center service request, and it is corresponding to return to the center service request at first The shadow node of request response message is determined as the most fast shadow node of response speed.Optionally, it is returned in a certain shadow node After asking response message, the mission thread that other shadow nodes send center service request to central server can be cancelled, To reduce the occupancy to the resource of other shadow nodes and Centroid.

S203, the corresponding request response message of center service request that next shadow node returns is received, and The request response message is sent to a upper network node, end operation.

If S204, the Centroid that itself is current network, generation and the corresponding request of center service request Response message, and the request response message is sent to a upper network node.

S205, the renewable time that shadow node is reached at current time and/or detect in current network exist by During the shadow node of DDOS attack, the shadow node in current network is updated.

It, can be according to the update rule of setting to working as in order to further improve the safety of Centroid in the present embodiment Shadow node in preceding network is updated, which could be provided as according to the setting period and/or exist by DDOS The shadow node in current network is updated during the shadow node of attack.Wherein, update cycle and by DDOS attack The detection method of shadow node and the update method of shadow node can be arranged as required to.

For example, the update cycle could be provided as one day, one week or other times length.It is in current network is determined It is no exist by DDOS attack shadow node when, can obtain each shadow node in current network response speed (or delay Time), and judge each shadow node response speed whether be all higher than setting speed threshold value (or delay time whether be respectively less than set Fix time threshold value), if it is not, then judging the shadow node for having by DDOS attack in current network；It can also obtain user's Report information, if reflecting that the response speed of a certain shadow node is excessively slow compared with multi-user, judge to exist in current network by The shadow node of attack.Wherein, the response speed of each shadow node can be by sending solicited message to shadow node and being based on The time that local terminal receives spent by the solicited message of shadow node determines.

It illustratively, can be first by shadow node disguise as when being updated to the shadow node in current network Then the identity ID of Centroid randomly selects the network node of setting quantity, is chosen and shadow ID according to the size of distance The network node of closest setting quantity or the net that setting quantity is randomly selected in the set distance range of shadow ID The modes such as network node choose the updated shadow node of current network, further by shadow ID that Centroid disguise as is current A shadow node in network, and the shadow node identification of current network primitive network node is deleted, to realize to current net The update of shadow node in network.

Herein, it should be noted that the present embodiment does not limit the execution of above steps sequence, specifically should Used time, above-mentioned steps can be adjusted as needed, as S205 can in S201~S204 before either step, later Or performed parallel with one or more of S201~S204 step, still, no matter which kind of performs sequence, should all be in this implementation Example is within the limits of the protection.

The processing method of center service request provided by Embodiment 2 of the present invention, receives the center that a upper network node is sent The center service received request if local terminal is the non-central node of current network, is transmitted to response speed by service request The most fast next shadow node of degree receives the request response message that next shadow node returns and forwards the request response message To a upper network node；If local terminal is the Centroid of current network, the corresponding request response of center service request is generated The request response message is sent to a upper network node by information, and reach at current time shadow node renewable time or When there is the shadow node by DDOS attack in current network, the shadow node in current network is updated.The present embodiment passes through Using above-mentioned technical proposal, the safety of Centroid in network system can be not only improved, Centroid is reduced and is distributed The probability of formula Denial of Service attack can also reduce probability of the shadow node by DDOS attack, improve center service request Response speed.

Embodiment three

Fig. 3 A are the flow diagram of the processing method of a kind of center service request that the embodiment of the present invention three provides.This reality It applies example to advanced optimize on the basis of above-described embodiment, in the present embodiment, " the shadow node in current network will be updated " It is optimized for：Obtain the maximum number of digits information of network node identity ID in current network；Structure is in the maximum number of digits range of information Within random number as the shadow ID of itself, and be associated with the setting shadow ID and the IP address of itself, obtain the void of itself Intend nodal information；The be online is chosen in the setting ID configuration distance thresholds of the shadow ID based on random algorithm The non-central node of one setting quantity obtains the real node information of the target network node as target network node, The real node information includes identity ID and IP address；The shadow node being locally stored using the update of current shadow nodal information List；And generation carries the shadow node updates order of current shadow nodal information, and by the shadow node updates order The target network node is sent to, to update the shadow node in current network, wherein, the current shadow nodal information packet Include the effective time of the real node information, the virtual node information and current shadow nodal information

Further, the processing method of center service request provided in this embodiment can also include：If itself is works as The non-central node of preceding network, then after shadow node updates order is received, if in the shadow node listing being locally stored Original shadow nodal information be not integrally incorporated in the current shadow nodal information, then delete the original shadow node letter Breath, and the part or all of shadow nodal information in current shadow nodal information is stored in the shadow node listing, with Update the shadow node listing；The shadow node updates order is sent to node to be updated, the node packet to be updated Include the first node to be updated formed by the part or all of shadow node in the shadow node listing and the net being locally stored The second node to be updated that part or all of network node in network node listing is formed.

Correspondingly, as shown in Figure 3A, the processing method of center service request provided in this embodiment includes：

S301, receive the center service performed by Centroid that a upper network node is sent and ask, execution S302 or S306。

If S302, the non-central node that itself is current network, choose in the shadow node listing being locally stored The most fast shadow node of response speed is as the next shadow node for receiving center service request, and by the center service Request is sent to next shadow node.

S303, the corresponding request response message of center service request that next shadow node returns is received, and The request response message is sent to a upper network node.

S304, after shadow node updates order is received, if the original shadow in the shadow node listing being locally stored Child node information is not integrally incorporated in the current shadow nodal information that the shadow node updates order carries, then described in deletion Original shadow nodal information, and the part or all of shadow nodal information in current shadow nodal information is stored in the shadow In node listing, to update the shadow node listing.

In the present embodiment, after shadow node updates order is received, the original shadow section of local terminal storage can not be considered Point information, i.e., do not consider whether local terminal had received the shadow node updates order of this transmission of Centroid, directly uses In the shadow node listing that all or part of current shadow nodal information replacement in shadow node updates order is locally stored Original shadow nodal information, to update the shadow node listing being locally stored；It can also first determine whether local terminal receives for the first time The shadow node updates order that this sends to Centroid, if so, the shadow node listing that update is locally stored, if it is not, I.e. if the original shadow nodal information in the shadow node listing being locally stored is integrally incorporated in the shadow node updates life It enables in the current shadow nodal information carried, then the operation of shadow node listing that can be stored without updating local terminal, directly Perform S305.Wherein, the quantity of shadow node included in local shadow node listing, that is, shadow node updates order when updating The selection quantity of middle current shadow nodal information can pre-set or be determined at random in update, not be restricted herein.

S305, the shadow node updates order is sent to node to be updated, the node to be updated is included by described Part or all of shadow node the first node to be updated formed and the network node being locally stored row in shadow node listing The second node to be updated that part or all of network node in table is formed, end operation.

In the present embodiment, the shadow node updates order received can be transmitted to by the non-central node in shadow node Part or all of shadow node in updated shadow node listing and the part in the network node list being locally stored Or overall network node, under the premise of shadow node the whole network is newer in current network is realized, further improve centromere The safety of point.Herein, it should be noted that if that chooses receives the shadow node of shadow node updates order and network section There is the node repeated in point, then when this is updated, only can send a shadow node updates order to the duplicate node, To reduce calculation amount needed for shadow node updates process.Wherein, the shadow node and net of shadow node updates order are received The quantity of network node can be arranged as required to.

In the present embodiment, network node list can be locally located, and the procotol based on current network will in advance The network node information (identity ID and IP address etc.) for meeting the network node of the procotol in current network is stored in the net In network node listing, so as to which each network node ensured in current network can find appointing in current network by identity ID One network node of meaning.

By taking current network is KAD (Kademlia) network as an example, (subnetwork section is only gived in figure as shown in Figure 3B Point), in KAD networks, each network node can be regarded as the leaf of a binary tree, and each network node exists Position in KAD networks can be uniquely determined by its identity ID.For any one network node, pass through the network section Point the binary tree can be decomposed into it is a series of it is continuous, not comprising the subtree of itself, top subtree is not by including itself The other half composition of binary tree, next straton tree are made of remainder not comprising the half of itself, and so on, until will be whole The segmentation of binary tree is completed.By taking the network node 0011 (i.e. identity ID is 0011 network node A) in Fig. 3 B as an example, by the net The subtree obtained after network node allocation as shown in the part that dotted line includes in Fig. 3 B, wherein, top subtree be 1000, secondary high level Subtree is 2100, and third layer subtree is 2220, and the 4th straton tree is 2212, from top to bottom the identity ID prefixes difference of each straton tree It is 1,01,000 and 0010.As long as KAD agreements provide each subtree non-empty, each network node should be recognized that in its each subtree at least One network node, therefore, in KAD networks, record has the local terminal corresponding in the network node list of each network node storage The identity ID and IP address of at least one of each non-empty subtree network node.At this point, each network node can use it is different Or (XOR) algorithm finds any one network node in current network by identity ID.

Illustratively, it is assumed that present node is network node 0011, and the destination node to be found of present node is network section Point 1110 (the network node B in Fig. 3 C), in the network node list of present node record have network node 101 identity ID and IP address, the network node list records of network node 101 have the identity ID and IP address of network node 1101, network node Record has the identity ID and IP address of network node 11110, the network section of network node 11110 in 1101 network node list Record has the identity ID and IP address of network node 1110 in point list, then as shown in Figure 3 C, present node finds destination node Process can be：It is corresponding that present node based on the identity ID of present node and destination node determines that destination node is located at itself In top subtree, and the network node 101 into the top subtree that local terminal records sends FIND_VALUE instructions, network section Point 101 is after FIND_VALUE instructions are received, and the IP address for judging itself whether to record destination node is (with it in Fig. 3 C For the IP address for not recording destination node), if so, to present node return destination node IP address, if it is not, then to work as Front nodal point return the ID distances that itself are recorded than itself closer to destination node a network node (with network section in Fig. 3 C Point 1101 for) identity ID and IP address；Present node sends FIND_VALUE instructions, network node to network node 1101 1101 after FIND_VALUE instructions are received, and the IP address for judging itself whether to record destination node is (with it in Fig. 3 C For the IP address for not recording destination node), if so, to present node return destination node IP address, if it is not, then to work as Front nodal point return the ID distances that itself are recorded than itself closer to destination node a network node (with network section in Fig. 3 C Point 11110 for) identity ID and IP address；Present node sends FIND_VALUE instructions, network section to network node 11110 Point 11110 after FIND_VALUE instructions are received, judge itself whether to record destination node IP address (in Fig. 3 C with It is recorded for having an IP address of destination node), if so, return to the IP address of destination node to present node, if it is not, then to Present node returns to identity ID and IP of the ID distances itself recorded than itself closer to a network node of destination node Address, and so on, until present node gets the IP address of destination node.Wherein, FIND_VALUE instructions use For the identity ID of destination node as parameter, the recipient of this instruction returns to ID distances that it is recorded closer to the one of destination node The IP address and identity ID (or IP address, identity ID and service port number) of a network node.

It should be noted that present node can also obtain destination node or closer by sending FIND_NODE instructions The identity ID of the network node of destination node, the FIND_NODE instruction use the identity ID of destination node to be different from as parameter FIND_VALUE is instructed, and the recipient of this instruction returns to its K network of the closer destination node of ID distances recorded The IP address and identity ID (or IP address, identity ID and service port number) of node, wherein, K values can be arranged as required to, When the quantity N of ID distances closer to the network node of destination node that the recipient of the instruction is recorded is less than K, then can return N number of ID distances that it is recorded are returned closer to network node IP address and identity ID (or IP address, the identity ID of destination node And service port number).

It is instructed, and one in the instruction notification current network can be passed through in addition, STORE can also be included in KAD agreements A network node stores other network node IP address and identity ID (or IP address, identity ID and service port number), To meet query demand in the future.

If S306, the Centroid that itself is current network, generation and the corresponding request of center service request Response message, and the request response message is sent to a upper network node.

S307, the renewable time that shadow node is reached at current time and/or detect in current network exist by During the shadow node of DDOS attack, the maximum number of digits information of network node identity ID in current network is obtained.

Wherein, the maximum number of digits information of shadow node identities ID can be by current network one end in current network Network node obtains its identity ID and counts the digit information of its identity ID and determines, the identity that can also be stored by reading local terminal ID records file (or identity ID digits record file) determines, is not restricted herein.Illustratively, in KAD networks, each network The identity ID maximum number of digits of node (including shadow node and non-shadow node) could be provided as 160bit.

S308, random number of the structure within the maximum number of digits range of information are associated with and set as the shadow ID of itself The shadow ID and the IP address of itself are put, obtains the virtual node information of itself.

In the present embodiment, the shadow node in current network that Centroid can disguise oneself as, so as to ensure current net Under the premise of network node in network can be communicated with Centroid, the safety of Centroid is improved.At this point, due in The true ID of heart node itself can generally be announced in current network, therefore, can forge a shadow by node centered on The IP address of shadow ID and Centroid are associated setting by ID, so as to subsequently can will be associated with setting shadow ID with Centroid IP address is sent as a shadow nodal information in current shadow nodal information with the order of shadow node updates Other network nodes are given, comprising multiple in the shadow node updates order received due to other network nodes in current network Shadow node, therefore it determines node centered on which shadow in communication there is no method, it also can not be targetedly to center Node sends DDOS attack, so as to improve the safety of Centroid.

S309, choose what is be online in the setting ID configuration distance thresholds of the shadow ID based on random algorithm The non-central node of first setting quantity obtains the real node letter of the target network node as target network node Breath, the real node information include identity ID and IP address.

In the present embodiment, it can choose with network nodes of the shadow ID of Centroid in setpoint distance threshold value as mesh Network node (the non-central node after updating in shadow node) is marked, is generated or connect so as to improve shadow node after update The center service request received is transmitted to the speed of Centroid, further shortens the response that center service is asked in current network Time.

Wherein, setpoint distance threshold value can be arranged as required to；Quantity (the i.e. current network after update of target network node The quantity of non-central node in shadow node) it can be according to the network concurrent number of current network and the place of each target network node Reason ability determines, for example, under the premise of ensureing that each target network node can normally realize itself function, it can be according to setting The generation quantity of center service request in time cycle in current network and each target network node are in setting time week The center service number of requests that can be forwarded in phase determines the quantity of shadow node in current network after updating.Target network node Real node information can be determined to each target network node sending node information acquisition request, can also read local terminal storage Record current network in each network node identity ID and IP address nodal information record file determine, do not limit herein System.

S310, the shadow node listing being locally stored using the update of current shadow nodal information；And generation carries currently The shadow node updates order of shadow nodal information, and the shadow node updates order is sent to the target network section Point, to update the shadow node in current network, wherein, the current shadow nodal information include the real node information, The effective time of the virtual node information and current shadow nodal information.

In order to ensure that network node in current network can not be by the current shadow nodal information that receives to current net Centroid and other shadow nodes (i.e. target network node) in network distinguish, centromere in current shadow nodal information The virtual node information and the real node information of other shadow nodes of point are preferably sent in the form of identical, i.e., empty Intend to add the mark of any real node information different from other shadow nodes in nodal information.Correspondingly, in reality In the application of border, for the non-central node in the ordinary node in network or shadow node, only several are had received The current shadow nodal information of shadow node identifies centromere there is no method by the current shadow nodal information received The IP address of point, can be thus achieved the protection to Centroid as a result,.

Herein, it should be noted that this newer version number can also be carried in shadow node updates order, at this point, For Centroid when being updated every time to shadow node, version number when can last time be updated accordingly adds 1 as this Updated version number, and by version number addition in shadow node updates order.It is correspondingly, non-central in shadow node Node and/or ordinary node can be first determined whether after shadow node updates order is received in shadow node updates order Whether the version number of carrying and the version number in local terminal shadow node listing are identical, if so, determining that local terminal has been based on the shadow Node updates order carried out the shadow node listing that local terminal stores update, end operation or by the shadow node received more Newer command is sent to the to be updated node different from the network node of last time；If it is not, then update the shadow node row of local terminal storage Table, and the shadow node updates order is sent to node to be updated.

For the present embodiment when being updated to shadow node, Centroid can pass through the shadow node updates order of generation Each network node in control current network deletes the original shadow nodal information being locally stored and stores shadow node updates life The part or all of current shadow nodal information carried in order.Alternatively, Centroid can also broadcast in current network first Shadow node removes (BroadcastClearSever) instruction, by the shadow of the original shadow node defined in current network Node property is removed, and updates the shadow ID of Centroid, correspondingly, all original shadow nodes for receiving this order are to working as The original shadow node of all or part in preceding network forwards this order to protect the privacy of Centroid IP address, and remove The shadow node property of itself is no longer forwarded the center service request that a upper network node is sent；Secondly, current It broadcasts shadow node definition (BroadcastServerNode) in network to instruct, to carry out updated current shadow node Definition, correspondingly, all or part of current shadow section of all current shadow nodes for receiving this order into current network This order of point forwarding is started with protecting the privacy of Centroid IP, and define the shadow node property of itself to a upper net The center service request that network node is sent is forwarded；Again, shadow node updates order is generated, to complete in current network Shadow node update operation.Wherein, the recipient of BroadcastClearSever instructions is the original shadow in current network Child node, the network node in current network in addition to original shadow node do not receive and dispatch this order；BroadcastServerNode The recipient of instruction is updated current shadow node in current network, the net in current network in addition to current shadow node Network point does not receive and dispatch this order.

The processing method of center service request that the embodiment of the present invention three provides, Centroid reach shadow at current time It the renewable time of node and/or detects when there is the shadow node by DDOS attack in current network, updates the shadow of local terminal Sub- ID, after choosing network nodes of the identity ID and shadow ID within setting ID distance ranges as update in shadow node Non-central node using shadow ID by the updated shadow node of Centroid disguise as, and controls the net of current network Network node is updated the shadow node listing itself stored.The present embodiment, not only can be with by using above-mentioned technical proposal The safety of Centroid in network system is improved, Centroid is reduced by the probability of distributed denial of service attack, may be used also To reduce probability of the shadow node by DDOS attack, the response speed of center service request is improved.

In said program, if a certain network section when Centroid sends shadow node updates order in current network Point is in off-line state or not yet adds in current network, then the network node can generate shadow after reaching the standard grade or adding in current network Child node information acquisition request, and one or more of network node list for forwarding it to local terminal storage network node； It receives shadow nodal information and obtains the network node asked if not shadow node, then it can be in the shadow for judging itself storage The shadow nodal information is obtained to a shadow for asking to be transmitted in shadow node listing when child node information is in effective status Child node；Correspondingly, shadow node can on receiving a network node send shadow nodal information obtain request after, The current shadow nodal information in the shadow node listing being locally stored is obtained, and the current shadow nodal information is sent to A upper network node, so as to be transmitted to current shadow nodal information is direct or indirect this and new reach the standard grade or newly add in current The network node of network ensures that the network node can communicate with Centroid.

Example IV

The embodiment of the present invention four provides a kind of processing method of center service request.What this method can be asked by center service Processing unit performs, wherein, which can generally be integrated in the network node of network system by software and or hardware realization In.Fig. 4 is the flow diagram of the processing method of center service request that the embodiment of the present invention four provides, as shown in figure 4, the party Method includes：

S401, when Centroid into current network is needed to obtain center service, generation center service request.

Center service is obtained for that for KAD networks, can be added in KAD agreements in advance by current network SeverWork is asked, correspondingly, network node (non-central node and/or non-shadow section in shadow node in current network Point) when needing to center service acquisition request center service, SeverWork requests (i.e. center service is asked) can be generated, The Centroid into current network to be asked to ask center service by the SeverWork.

S402, a shadow node is chosen in the shadow node listing being locally stored as first object shadow node, Center service request is sent to the first object shadow node, and receives what the first object shadow node returned The center service asks corresponding request response message.

In the present embodiment, a shadow node can be arbitrarily chosen as first object shadow node, can also choose shadow The most fast shadow node of response speed is not restricted herein as first object shadow node in child list.In considering The response speed of central server request, it is preferred that can choose what is be online from the shadow node listing that local terminal stores The most fast shadow node of response speed is chosen in shadow node as first object shadow node, and the center service that will be generated Request is sent to the first object shadow node.Correspondingly, by center service request be sent to first object shadow node it Afterwards, the Centroid that can receive first object shadow node return rings the request generated after center service request processing Information is answered, is operated with completing this request.Wherein, the response speed of each shadow node can be counted and be recorded in advance.

The processing method of center service request that the embodiment of the present invention four provides, in the center service for needing Centroid When, generation center service request, and the first mesh that the center service is asked to be sent in the shadow node listing of local terminal storage Mark shadow node.For the present embodiment by using above-mentioned technical proposal, the center service for local terminal being forwarded to generate by shadow node please It asks, the safety for improving Centroid in network system can be improved, reduce Centroid by distributed denial of service attack Probability.

On the basis of said program, the processing method of center service request provided in this embodiment can also include： After receiving the shadow node updates order for carrying current shadow nodal information, delete in the shadow node listing being locally stored The original shadow nodal information of storage, and the part or all of shadow nodal information in current shadow nodal information is stored in institute It states in shadow node listing, to update the shadow node listing；Portion is randomly selected based on the network node list being locally stored Divide or overall network node is sent to the node to be updated as node to be updated, and by the shadow node updates order. In the present embodiment, network node can be based on the shadow node that be stored to local terminal of shadow node updates order that Centroid generates List is updated, so as to further improve the safety of the response speed of center service request and Centroid.Wherein, it deposits Store up the current shadow nodal information in shadow node listing quantity and selection rule and receive shadow node updates order Node to be updated quantity and selection rule can be arranged as required to, be not restricted herein.

Embodiment five

Fig. 5 is the flow diagram of the processing method of center service request that the embodiment of the present invention five provides.The present embodiment It is optimized on the basis of above-described embodiment, further, one is chosen in the shadow node listing being locally stored described Before a shadow node is as first object shadow node, it can also include：It determines in the shadow node listing being locally stored Shadow nodal information was within effective time.

Further, the processing method of center service request provided in this embodiment can also include：If the shadow Shadow nodal information in node listing was in except effective time, then generated shadow nodal information and obtain request, deposited locally The network node of the second setting quantity is randomly selected in the network node list of storage as target network node, and by the shadow Nodal information obtains request and is sent to the target network node；Receive the current shadow node that the target network node returns Information, and the shadow node listing being locally stored based on current shadow nodal information update.

Correspondingly, as shown in figure 5, the processing method of center service provided in this embodiment request can include：

S501, when Centroid into current network is needed to obtain center service, generation center service request.

Whether the shadow nodal information in the shadow node listing that S502, judgement are locally stored in shadow node listing is in Within effective time, if so, performing S503；If it is not, then perform S504.

Illustratively, if current time was in except the effective time of shadow nodal information, then it can be determined that shadow section Shadow nodal information in point list was not within effective time；If current time be in shadow nodal information it is effective when Between within, then can directly judge that the shadow nodal information in shadow node listing was within effective time, alternatively, further Information request is sent to one or more of shadow node listing shadow node, to obtain the one or more shadow node sheet The effective time (or version number) of the shadow nodal information of ground storage, if the shadow of one or more shadow node memory storage The effective time of nodal information be more than be locally stored shadow node listing effective time (or its version number be more than be locally stored Shadow node listing in version number) then can be determined that the shadow nodal information in the shadow node listing being locally stored is not located Within effective time, otherwise, then it can be determined that the shadow nodal information in the shadow node listing being locally stored is in effective Within time.

S503, a shadow node is chosen in the shadow node listing being locally stored as first object shadow node, Center service request is sent to the first object shadow node, and receives what the first object shadow node returned The center service asks corresponding request response message, end operation.

S504, generation shadow nodal information obtain request, and second is randomly selected in the network node list being locally stored The network node of quantity is set as target network node, and the shadow nodal information is obtained into request and is sent to the target Network node.

Shadow nodal information is obtained for that for KAD networks, can be added in KAD agreements in advance by current network Shadow node obtains (FindServerNode) request, correspondingly, the network node in current network is needing to obtain current shadow During child node information, FindServerNode requests can be generated, and send the request to other nets of the second setting quantity Network node, to find the identity ID and IP address of all or part of shadow nodes in current network by performing this request.

Illustratively, the non-shadow node (i.e. ordinary node) in current network is receiving the transmission of other network nodes When shadow nodal information obtains request, can request directly be obtained to the shadow nodal information and be handled and by local terminal shadow section The shadow nodal information stored in point list is sent to the non-shadow node as current shadow nodal information；It can also be by the shadow Sub-information acquisition request is transmitted to the shadow node being locally stored and is handled, at this point, correspondingly, center provided in this embodiment The processing method of service request can also include：Non- shadow node in current network network node (other on receiving Network node) send shadow nodal information obtain request after, reception can be chosen in the shadow node listing being locally stored The shadow nodal information obtains the second intended shadow node of request, and the shadow nodal information is obtained request is sent to institute The second intended shadow node is stated, receives the current shadow nodal information that the second intended shadow node is sent, and described will work as Preceding shadow nodal information is transmitted to a upper network node.

S505, the current shadow nodal information that the target network node returns is received, and based on the current shadow section The shadow node listing that point information update is locally stored, returns to S503.

Illustratively, this may be used in the current shadow nodal information for receiving target network node return in local terminal Original shadow nodal information in the shadow node listing that is locally stored of current shadow nodal information replacement, with to being locally stored Shadow node listing is updated.

The processing method of center service request that the embodiment of the present invention five provides, in the shadow nodal information that local terminal stores not When within effective time, generation shadow nodal information obtains request, is selected at random in the network node list being locally stored Take the network node of setting quantity that the shadow node is obtained request and is sent to selected target network as target network node Network node is received the current shadow nodal information that target network node returns and is updated based on the current shadow nodal information local The shadow node listing of storage determines intended shadow node based on updated shadow node listing, the center that local terminal is generated Service request is transmitted to the intended shadow node and receives the request response message of intended shadow node return.The present embodiment leads to The safety that using above-mentioned end scheme, can not only improve and improve Centroid in network system is crossed, Centroid is reduced and meets with By the probability of distributed denial of service attack, the response speed of center service request can also be improved, when reducing the waiting of user Between.

Embodiment six

The embodiment of the present invention six provides a kind of processing unit of center service request.Wherein, the device can by software and/or Hardware realization can be generally integrated in the shadow node of network system, can pass through the processing method of implementation center's service request Realize the processing asked center service.Fig. 6 is the knot of the processing unit of center service request that the embodiment of the present invention six provides Structure block diagram, as shown in fig. 6, the device includes：

Service request reception module 601, it is genuinely convinced in being performed for receive that a upper network node sends by Centroid Business request.

Service request forwarding module 602, in response to itself for current network non-central node situation, in local The next shadow node for receiving the center service request is chosen in the shadow node listing of storage, and please by the center service It asks and is sent to next shadow node；And it receives the center service request that next shadow node returns and corresponds to Request response message, and by it is described request response message be sent to a upper network node；

Service request handling module 603, in response to the situation of Centroid that itself is current network, generation and institute It states center service and asks corresponding request response message, and the request response message is sent to a upper network node.

The processing unit of center service request that the embodiment of the present invention six provides, is received by service request reception module The center service performed by Centroid that one network node is sent is asked；At itself it is current by service request forwarding module During the non-central node of network, next shadow node is chosen in the shadow node listing being locally stored, it please by the center service It asks and is sent to next shadow node, receive the corresponding request response letter of center service request that next shadow node returns Breath, and the upper network node that will received request response message be sent to dispatching centre service request；Pass through service Request processing module generates request response letter corresponding with center service request when itself is the Centroid of current network It ceases, and the request response message is sent to a upper network node for dispatching centre service request.The present embodiment is by using upper Technical solution is stated, the safety of Centroid in network system can be improved, reduces Centroid by distributed denial of service The probability of attack.

Further, the processing unit of center service request provided in this embodiment can also include：Shadow node updates Module, in response to the Centroid situation that itself is current network, the renewable time of shadow node to be reached at current time And/or when detecting in current network in the presence of the shadow node by DDOS attack, update the shadow node in current network.

In said program, the shadow node updates module can include：Digit information acquisition unit, in response to Itself is the Centroid situation of current network, and the renewable time of shadow node is reached at current time and/or is detected current When there is the shadow node by DDOS attack in network, the maximum number of digits letter of network node identity ID in current network is obtained Breath；Shadow ID construction units, for building random number within the maximum number of digits range of information as the shadow ID of itself, And the setting shadow ID and the IP address of itself are associated with, obtain the virtual node information of itself；Real node acquisition of information list Member sets for choosing be online first in the setting ID configuration distance thresholds of the shadow ID based on random algorithm The non-central node of fixed number amount obtains the real node information of the target network node as target network node, described Real node information includes identity ID and IP address；First shadow node updates unit, for using current shadow nodal information Update the shadow node listing being locally stored；And generation carries the shadow node updates order of current shadow nodal information, and The shadow node updates order is sent to the target network node, to update the shadow node in current network, wherein, The current shadow nodal information includes the real node information, the virtual node information and current shadow nodal information Effective time.

In said program, the shadow node updates module can also include：Second shadow node updates unit, is used for In response to itself situation for the non-central node of current network, after shadow node updates order is received, if local deposit Original shadow nodal information in the shadow node listing of storage is not integrally incorporated in the current shadow nodal information, then is deleted The original shadow nodal information, and the part or all of shadow nodal information in current shadow nodal information is stored in described In shadow node listing, to update the shadow node listing；Command sending unit is updated, for by the shadow node updates Order is sent to node to be updated, and the node to be updated is included by the part or all of shadow section in the shadow node listing Part or all of network node in the first node to be updated and the network node list that is locally stored that point is formed formed the Two nodes to be updated.

In said program, the shadow node updates module can also include：Requesting processing is obtained, for connecing After the shadow nodal information acquisition request for receiving network node transmission, obtain in the shadow node listing being locally stored Current shadow nodal information, and the current shadow nodal information is sent to a upper network node.

In said program, described chosen in the shadow node listing being locally stored receives the center service request Next shadow node, can include：The most fast shadow node of response speed is chosen in the shadow node listing being locally stored to make To receive next shadow node of the center service request.

Further, the processing unit of center service request provided in this embodiment can also include：Shadow node determines Module, for being in the situation of off-line state in response to being initially received center service request or next shadow node, to Part or all of shadow node in the shadow node listing being locally stored sends the center service request, and will return at first The center service asks the shadow node of corresponding request response message to be determined as the most fast shadow node of response speed.

The embodiment of the present invention six provide center service request processing unit can perform it is provided in an embodiment of the present invention in The processing method of central server request has the corresponding function module of processing method and advantageous effect of implementation center's service request. The not technical detail of detailed description in the present embodiment, reference can be made to the processing of center service request that the embodiment of the present invention is provided Method.

Embodiment seven

The embodiment of the present invention seven provides a kind of processing unit of center service request.The device can be by software and/or hardware It realizes, can generally be integrated in the network node of network system, can be realized by the processing method of implementation center's service request Processing to center service request.Fig. 7 is the structural frames of the processing unit of center service request that the embodiment of the present invention seven provides Figure, as shown in fig. 7, the device includes：

Service request generation module 701, for when the Centroid into current network is needed to obtain center service, giving birth to It is asked into center service；

Service request sending module 702 is made for choosing a shadow node in the shadow node listing being locally stored For first object shadow node, center service request is sent to the first object shadow node, and receives described the The center service that one intended shadow node returns asks corresponding request response message.

The processing unit of center service request that the embodiment of the present invention seven provides, is being needed by service request generation module When Centroid into current network obtains center service, generation center service request；Existed by service request sending module A shadow is chosen in the shadow node listing being locally stored, and some is used as first object shadow node, genuinely convinced in being generated Business request is sent to the first object shadow node, and the center service request for receiving first object shadow node return corresponds to Request response message.The present embodiment can improve the safety of Centroid in network system by using above-mentioned technical proposal Property, reduce probability of the Centroid by distributed denial of service attack.

Further, the processing unit of center service request provided in this embodiment can also include：Shadow node listing Update module, for after the shadow node updates order for carrying current shadow nodal information is received, deletion to be locally stored Shadow node listing in the original shadow nodal information that stores, and by the part or all of shadow in current shadow nodal information Nodal information is stored in the shadow node listing, to update the shadow node listing；Shadow nodal information sending module, For randomly selecting part or all of network node based on the network node list being locally stored as node to be updated, and by institute It states shadow node updates order and is sent to the node to be updated.

Further, the processing unit of center service request provided in this embodiment can also include：Effective time determines Module, for choosing a shadow node in the shadow node listing being locally stored as first object shadow node described Before, determine that the shadow nodal information in the shadow node listing being locally stored was within effective time.

Further, the processing unit of center service request provided in this embodiment can also include：Nodal information is asked Module for being in the situation except effective time in response to the shadow nodal information in the shadow node listing, generates shadow Child node information acquisition request, the network node that the second setting quantity is randomly selected in the network node list being locally stored are made For target network node, and the shadow nodal information is obtained into request and is sent to the target network node；Nodal information connects Module is received, for receiving the current shadow nodal information that the target network node returns, and based on the current shadow node The shadow node listing that information update is locally stored.

Further, the processing unit of center service request provided in this embodiment can also include：Node request is sent Module, after obtaining request for the shadow nodal information that a network node is sent on receiving, in the shadow being locally stored It is chosen in node listing and receives the second intended shadow node that the shadow nodal information obtains request, the shadow node is believed Breath obtains request and is sent to the second intended shadow node, receives the current shadow section that the second intended shadow node is sent Point information, and the current shadow nodal information is transmitted to a upper network node.

The embodiment of the present invention seven provide center service request processing unit can perform it is provided in an embodiment of the present invention in The processing method of central server request has the corresponding function module of processing method and advantageous effect of implementation center's service request. The not technical detail of detailed description in the present embodiment, reference can be made to the processing of center service request that the embodiment of the present invention is provided Method.

Embodiment eight

Fig. 8 is the structure diagram of a kind of shadow node that the embodiment of the present invention eight provides, as shown in figure 8, the shadow section Point includes processor 80 and memory 81, can also include input unit 82 and output device 83；Processor 80 in shadow node Quantity can be one or more, in Fig. 8 by taking a processor 80 as an example；Processor 80, memory 81 in shadow node, Input unit 82 can be connected with output device 83 by bus or other modes, in Fig. 8 for being connected by bus.

Memory 81 is used as a kind of computer readable storage medium, and journey is can perform available for storage software program, computer Sequence and module, the corresponding program instruction/module of processing method asked such as the center service in the embodiment of the present invention (for example, Service request reception module 601 and service request forwarding module 602 in the processing unit of center service request).Processor 80 Software program, instruction and the module being stored in by operation in memory 81, should so as to perform the various functions of shadow node With and data processing, that is, realize the processing method of above-mentioned center service request.

Memory 81 can mainly include storing program area and storage data field, wherein, storing program area can store operation system Application program needed for system, at least one function；Storage data field can be stored uses created data etc. according to terminal.This Outside, memory 81 can include high-speed random access memory, can also include nonvolatile memory, for example, at least a magnetic Disk storage device, flush memory device or other non-volatile solid state memory parts.In some instances, memory 81 can be further Including relative to the remotely located memory of processor 80, these remote memories can pass through network connection to shadow node. The example of above-mentioned network includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.

Input unit 82 can be used for receiving the number inputted or character information and generation and the user setting of shadow node And the key signals input that function control is related.Output device 83 may include that display screen etc. shows equipment.

The embodiment of the present invention eight also provides a kind of storage medium for including computer executable instructions, and the computer can be held When being performed by computer processor for performing a kind of processing method of center service request, this method includes for row instruction：

Certainly, a kind of storage medium for including computer executable instructions that the embodiment of the present invention is provided, computer The method operation that executable instruction is not limited to the described above, can also be performed the center service that any embodiment of the present invention is provided Relevant operation in the processing method of request.

By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but the former is more in many cases Good embodiment.Based on such understanding, what technical scheme of the present invention substantially in other words contributed to the prior art Part can be embodied in the form of software product, which can be stored in computer readable storage medium In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions with so that a computer is set Standby (can be personal computer, server or the network equipment etc.) performs the method described in each embodiment of the present invention.

It is worth noting that, in the embodiment of the processing unit of above-mentioned center service request, included each unit and Module is only divided, but be not limited to above-mentioned division according to function logic, as long as corresponding function can be realized ；In addition, the specific name of each functional unit is also only to facilitate mutually distinguish, the protection being not intended to restrict the invention Range.

Embodiment nine

Fig. 9 is the structure diagram of a kind of network node that the embodiment of the present invention nine provides, as shown in figure 9, the network section Point includes processor 90 and memory 91, can also include input unit 92 and output device 93；Processor 90 in network node Quantity can be one or more, in Fig. 9 by taking a processor 90 as an example；Processor 90, memory 91 in network node, Input unit 92 can be connected with output device 93 by bus or other modes, in Fig. 9 for being connected by bus.

Memory 91 is used as a kind of computer readable storage medium, and journey is can perform available for storage software program, computer Sequence and module, the corresponding program instruction/module of processing method asked such as the center service in the embodiment of the present invention (for example, Service request generation module 701 and service request sending module 702 in the processing unit of center service request).Processor 90 Software program, instruction and the module being stored in by operation in memory 91, should so as to perform the various functions of network node With and data processing, that is, realize the processing method of above-mentioned center service request.

Memory 91 can mainly include storing program area and storage data field, wherein, storing program area can store operation system Application program needed for system, at least one function；Storage data field can be stored uses created data etc. according to terminal.This Outside, memory 91 can include high-speed random access memory, can also include nonvolatile memory, for example, at least a magnetic Disk storage device, flush memory device or other non-volatile solid state memory parts.In some instances, memory 91 can be further Including relative to the remotely located memory of processor 90, these remote memories can pass through network connection to network node. The example of above-mentioned network includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.

Input unit 92 can be used for receiving the number inputted or character information and generation and the user setting of network node And the key signals input that function control is related.Output device 93 may include that display screen etc. shows equipment.

The embodiment of the present invention nine also provides a kind of storage medium for including computer executable instructions, and the computer can be held When being performed by computer processor for performing a kind of processing method of center service request, this method includes for row instruction：

Embodiment ten

The embodiment of the present invention ten provides a kind of processing system of center service request.The system can be serviced by implementation center The processing that center service is asked in the processing method realization of request.Figure 10 is the center service request that the embodiment of the present invention ten provides Processing system structure diagram, as shown in Figure 10 (a shadow node and a network node are only gived in figure), this is System includes shadow node 10 and network node 20, wherein,

The network node 20, for when Centroid into current network is needed to obtain center service, in generation Central server is asked；A shadow node is chosen in the shadow node listing being locally stored and asks to send by the center service To the shadow node；

The shadow node 10, please for receiving the center service performed by Centroid that the network node is sent It asks；If itself is the non-central node of current network, during selection reception is described in the shadow node listing being locally stored Next shadow node of central server request, and center service request is sent to next shadow node；And it receives The center service that the next shadow node returns asks corresponding request response message, and by the request response message It is sent to the network node；If itself is the Centroid of current network, generation is corresponding with center service request Request response message, and by it is described request response message be sent to the network node；

The network node 20 is additionally operable to receive the corresponding request of center service request that the shadow node returns Response message.

In the present embodiment, system can include multiple shadow nodes and multiple network nodes, wherein, with regard to a certain in system Can be the Centroid of current network for shadow node, or with shadow node identification in current network Non-central node；Can be that there is the non-of shadow node identification in current network for a certain network node in system Centroid, or do not have the ordinary node (i.e. non-shadow node) of shadow node identification in current network, work as shadow When node and network node are non-central node, the two is preferably different non-central with different identity ID and IP address Node.

The processing system of center service request that the embodiment of the present invention ten provides can perform any embodiment of the present invention and provide Center service request processing method, have implementation center's service request the corresponding function module of processing method and beneficial to effect Fruit.The not technical detail of detailed description in the present embodiment, reference can be made to the center service that any embodiment of the present invention is provided please The processing method asked.

Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The present invention is not limited to specific embodiment described here, can carry out for a person skilled in the art various apparent variations, It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.

Claims

1. a kind of processing method of center service request, which is characterized in that including：

If itself is the non-central node of current network, during selection reception is described in the shadow node listing being locally stored Next shadow node of central server request, and center service request is sent to next shadow node；And it receives The center service that the next shadow node returns asks corresponding request response message, and by the request response message It is sent to a upper network node；

If itself is the Centroid of current network, request response message corresponding with center service request is generated, And the request response message is sent to a upper network node.

2. it according to the method described in claim 1, it is characterized in that, further includes：

If itself is the Centroid of current network, renewable time and/or the detection of shadow node are reached at current time When there is the shadow node by DDOS attack into current network, the shadow node in current network is updated.

3. according to the method described in claim 2, it is characterized in that, it is described update current network in shadow node, including：

Obtain the maximum number of digits information of network node identity ID in current network；

The random number within the maximum number of digits range of information is built as the shadow ID of itself, and is associated with the setting shadow ID and the IP address of itself, obtain the virtual node information of itself；

The first setting being online is chosen in the setting ID configuration distance thresholds of the shadow ID based on random algorithm The non-central node of quantity obtains the real node information of the target network node as target network node, described true Physical node information includes identity ID and IP address；

The shadow node listing being locally stored using the update of current shadow nodal information；And generation carries current shadow node The shadow node updates order of information, and the shadow node updates order is sent to the target network node, with update Shadow node in current network, wherein, the current shadow nodal information includes the real node information, the virtual section The effective time of point information and current shadow nodal information.

4. it according to the method described in claim 3, it is characterized in that, further includes：

If itself is the non-central node of current network, after shadow node updates order is received, if be locally stored Shadow node listing in original shadow nodal information be not integrally incorporated in the current shadow nodal information, then delete institute Original shadow nodal information is stated, and the part or all of shadow nodal information in current shadow nodal information is stored in the shadow In child list, to update the shadow node listing；

The shadow node updates order is sent to node to be updated, the node to be updated includes being arranged by the shadow node The part in part or all of shadow node the first node to be updated formed and the network node list being locally stored in table Or the second node to be updated that overall network node is formed.

5. it according to the method described in claim 4, it is characterized in that, further includes：

After the shadow nodal information that a network node is sent on receiving obtains request, the shadow node being locally stored is obtained Current shadow nodal information in list, and the current shadow nodal information is sent to a upper network node.

6. according to the method described in claim 1, it is characterized in that, described chosen in the shadow node listing being locally stored connects Next shadow node of the center service request is received, including：

The most fast shadow node of response speed is chosen in the shadow node listing being locally stored as the reception center service Next shadow node of request.

7. it according to the method described in claim 6, it is characterized in that, further includes：

If it is initially received center service request or next shadow node is in off-line state, to the shadow being locally stored Part or all of shadow node in child list sends the center service request, and will return to the center service at first The shadow node of corresponding request response message is asked to be determined as the most fast shadow node of response speed.

8. a kind of processing method of center service request, which is characterized in that including：

A shadow node is chosen in the shadow node listing being locally stored as first object shadow node, by the center Service request is sent to the first object shadow node, and receive that the first object shadow node returns it is described in it is genuinely convinced Corresponding request response message is asked in business.

9. it according to the method described in claim 8, it is characterized in that, further includes：

After the shadow node updates order for carrying current shadow nodal information is received, the shadow node being locally stored is deleted The original shadow nodal information stored in list, and the part or all of shadow nodal information in current shadow nodal information is deposited Storage is in the shadow node listing, to update the shadow node listing；

Part or all of network node is randomly selected as node to be updated based on the network node list being locally stored, and by institute It states shadow node updates order and is sent to the node to be updated.

10. it according to the method described in claim 8, it is characterized in that, is selected in the shadow node listing being locally stored described Before a shadow node is taken as first object shadow node, further include：

Determine that the shadow nodal information in the shadow node listing being locally stored was within effective time.

11. it according to the method described in claim 10, it is characterized in that, further includes：

If the shadow nodal information in the shadow node listing was in except effective time, generates shadow nodal information and obtain Request is taken, the network node of the second setting quantity is randomly selected in the network node list being locally stored as target network section Point, and the shadow nodal information is obtained into request and is sent to the target network node；

The current shadow nodal information that the target network node returns is received, and is updated based on the current shadow nodal information The shadow node listing being locally stored.

12. according to the method for claim 11, which is characterized in that further include：

After the shadow nodal information that a network node is sent on receiving obtains request, in the shadow node row being locally stored It is chosen in table and receives the second intended shadow node that the shadow nodal information obtains request, the shadow nodal information is obtained Request is sent to the second intended shadow node, receives the current shadow node letter that the second intended shadow node is sent Breath, and the current shadow nodal information is transmitted to a upper network node.

13. a kind of processing unit of center service request, which is characterized in that including：

Service request reception module, for receiving the center service performed by Centroid the request that a upper network node is sent；

Service request forwarding module, in response to itself for current network non-central node situation, what is be locally stored The next shadow node for receiving the center service request is chosen in shadow node listing, and the center service is asked to send To next shadow node；And it receives the center service that next shadow node returns and asks corresponding request Response message, and the request response message is sent to a upper network node；

Service request handling module, in response to the situation of Centroid that itself is current network, generation and the center The corresponding request response message of service request, and the request response message is sent to a upper network node.

14. a kind of processing unit of center service request, which is characterized in that including：

Service request generation module, for when the Centroid into current network is needed to obtain center service, generating center Service request；

Service request sending module, for choosing a shadow node in the shadow node listing being locally stored as the first mesh Shadow node is marked, center service request is sent to the first object shadow node, and receive the first object shadow The center service that child node returns asks corresponding request response message.

15. a kind of shadow node, which is characterized in that including：

One or more processors；

Memory, for storing one or more programs,

When one or more of programs are performed by one or more of processors so that one or more of processors are real The now processing method of the center service request as described in any in claim 1-7.

16. a kind of network node, which is characterized in that including：

One or more processors；

Memory, for storing one or more programs,

When one or more of programs are performed by one or more of processors so that one or more of processors are real The now processing method of the center service request as described in any in claim 8-12.

17. a kind of processing system of center service request, which is characterized in that including shadow node and network node, wherein,

The network node, for when the Centroid into current network is needed to obtain center service, generating center service Request；A shadow node is chosen in the shadow node listing being locally stored and is sent to center service request described Shadow node；

The shadow node, for receiving the center service performed by Centroid the request that the network node is sent；If Itself it is the non-central node of current network, then the reception center service is chosen in the shadow node listing being locally stored please The next shadow node asked, and center service request is sent to next shadow node；And it receives described next The center service that shadow node returns asks corresponding request response message, and the request response message is sent to institute State network node；If itself is the Centroid of current network, generates request corresponding with center service request and ring Information is answered, and the request response message is sent to the network node；

The network node is additionally operable to receive the corresponding request response letter of center service request that the shadow node returns Breath.