CN105991635A - Method and device for ensuring security and consistency of CDN (content delivery network) content access - Google Patents
Method and device for ensuring security and consistency of CDN (content delivery network) content access Download PDFInfo
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- CN105991635A CN105991635A CN201510244576.7A CN201510244576A CN105991635A CN 105991635 A CN105991635 A CN 105991635A CN 201510244576 A CN201510244576 A CN 201510244576A CN 105991635 A CN105991635 A CN 105991635A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0457—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The invention relates to a device for ensuring the security and consistency of CDN (content delivery network) content access. The device comprises the following components of: a clock synchronization unit; a key generator used for generating keys of next time intervals of servers; a CDN platform key; a key storage unit for storing the keys of each time interval; a key push unit used for issuing the platform key to all servers of a CDN platform; a receiving unit; a loading unit; a clock unit which is used for clock setting of all the servers of the CDN platform; and a verification unit which is used for verifying the authenticity and availability of the platform key; a CDN platform key generator initiatively initiates a connection and push request; the keys are pushed to a cache server; and the cache server receives the keys, and then carries out automatic loading and related processing. With the device of the invention adopted, requirements for current CDN construction can be well satisfied, management on CDN service manufacturers can be enhanced, the rights of subject manufacturers can be well protected, unauthorized cache operations cannot be implemented, and content infringement caused by CDN services can be avoided.
Description
Technical field
The present invention relates to computer information processing field, particularly relate to one and guarantee CDN content access security and concordance
Method and apparatus.
Background technology
Along with the Internet and the development of mobile Internet, the demand that audio frequency, video, download etc. are applied by people is increasing, for
Alleviate the network bandwidth and the access pressure of server, on current network by subject matter manufacturer (as excellent cruel, happy regarded, PPTV etc.) or
CDN (Content Delivery Network, i.e. content distributing network) service facility has built substantial amounts of CDN platform, for carrying
High numerous Internet users experience and reduce the business deliverability of main line network resource consumption and raising subject matter manufacturer and serve the biggest
Left and right.But, not close due to scheduling mode and lack and audit security mechanism accordingly, the security risk causing CDN is acute
Increase, information even can be occurred completely by the situation of falsification.First, access request exposes substantial amounts of time source information, is easily attacked
The person of hitting or saboteur utilize；Secondly, the return of scheduling data uses in a large number and processes in plain text, can cause dispatching data and be replaced, also
Other reference address may be redirected to；Additionally the terminal software of subject matter visitor does not has corresponding review mechanism.Therefore, existing
Widely used CDN platform cannot ensure concordance and the safety of content.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, it is provided that a kind of pass through " request address and scheduling data " add password protection
Card CDN content access security and conforming method and apparatus.Ensure Information Communication safety and the content peace of subject matter service facility
Quan Xing, stops undelegated caching, provides CDN service safe and stable, believable for numerous Internet users.
In order to solve above-mentioned technical problem, the embodiment of the present invention provides one to guarantee CDN content access security and conforming dress
Putting, described device includes:
Clock synchronization unit: at the correct time synchronizing CDN platform Servers-all system clock；
Password generator: be used for generating server following time interval key；CDN platform key is that timing is changed, predominantly
Ensured the safety and reliability of system, it is to avoid the safety that key runs off and causes declines；
Key storing unit: for preserving the key of every time interval, owing to CDN platform Servers-all clock cannot have been accomplished
Full real-time synchronization, key storing unit can improve fault-tolerant ability；
Key push unit: for platform key being handed down to CDN platform Servers-all；By CDN platform key maker master
Dynamic initiation connects and pushes request, and key is pushed to caching server, and caching server loads voluntarily after receiving key and does
Relevant treatment；
Receive unit: for caching server receiving platform key；After platform initiates to connect and push key request, caching clothes
The reception unit of business device is used for responding this request；
Loading unit: for the platform key that reception unit receives being loaded into the system of operation；CDN platform is under high load
Work, after obtaining new platform key, needs to load new key simultaneously and input makes original cipher key with extending certain time
With；
Clock unit: for the clock setting of CDN platform Servers-all；
Authentication unit: for verity and the availability of verification platform key.
A kind of method guaranteeing CDN content access security, including:
CDN platform key issues, and its concrete grammar includes:
Can use per hour, every day or certain time interval timing generate key；
Automatically the caching server authorized it is handed down to by network；
Caching server loads after receiving new key automatically, and uses new double secret key request address and scheduling data encryption；
Servers-all is obtaining key simultaneously, each system clock automatic synchronization；
Request address and scheduling data encryption, it is achieved data protection includes:
The request address of client uses and uses address after system key encryption；
Real resources address then use coding after request list or the mode that redirects be sent to client；
The source address of scheduling data is can only to be accessed once by rewrite according to the reference address that key generates；
Stop undelegated caching, specifically include:
Refusal does not has source of the returning request that the caching server of key is initiated；
The source address of scheduling data can only be accessed once, it is to avoid privately caches based on source address；
Client is opened and can be automatically updated client terminal playing key, it is ensured that it accesses effectiveness；
Owing to the upgrading of national all clients requires time for, certain compatibility mode can be used the most excessively to complete.
Compared with existing best technique, it is an advantage of the current invention that:
1, can ensure that the rights and interests of subject matter service facility, it is to avoid undelegated steal resource；
2, client software need not the most again develop, and in the case of big structure is constant, local module is upgraded；
3, avoiding overlapping investment to improve on original system, system can use smooth excessiveness to ensure business continuity.
In current internet traffic, more than 60% is audio frequency and video, download, and peak value even can take up 80%, currently in order to reduce network
Resource consumption is built CDN and is had become as necessary means.Urgent it is essential by what the present invention can not only support that current CDN builds very well
Ask, also can strengthen the management to CDN service manufacturer, stop the service quality risk caused owing to CDN service manufacturer is very different
And Information Security Risk, improve service quality；And the rights and interests of subject matter manufacturer can be protected very well, make unwarranted caching behaviour
Work cannot be implemented, it is to avoid the content infringement caused due to CDN service.
Accompanying drawing illustrates:
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or prior art
In description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the one of the present invention
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 is that CDN platform key issues example structure schematic diagram；
Fig. 2 is request address and scheduling data encryption example structure schematic diagram；
Fig. 3 is for stoping undelegated caching example structure schematic diagram；
Fig. 4 is the flow chart that CDN platform key issues；
Fig. 5 is the flow chart stoping undelegated caching.
Technical scheme
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is purged, intactly retouches
State, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the present invention
In embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise,
Broadly fall into the category of present invention protection.
The embodiment of the invention discloses a kind of by " request address and scheduling data " encryption ensure CDN content access security and
Conforming method and apparatus, for CDN dispatching platforms, plug-flow and data protection, automatic Generation Platform encryption key；To use
Family access request address encryption；The scheduling data encryption of user will be returned to；Ensure that data will not be gone back in message transmitting procedure
Former.And resource address will be synthesized, make the resource link being only capable of single reference, it is to avoid unwarranted caching.
For the clearer explanation present invention, below the method and apparatus issuing the CDN platform key of the present invention is carried out in detail
Introduce.
Refer to Fig. 1, for the structural representation of the embodiment issued for CDN platform key of the present invention；Described device includes:
Clock synchronization unit: at the correct time synchronizing CDN platform Servers-all system clock；Especially, for reducing
Coordinated between error raising system, has the effective property of key, it is necessary to stringent synchronization Servers-all clock；
Password generator: be used for generating server following time interval key；CDN platform key is that timing is changed, predominantly
Ensured the safety and reliability of system, it is to avoid the safety that key runs off and causes declines；
Key storing unit: for preserving the key on every time interval birthdate；CDN platform Servers-all clock is had to accomplish
Real-time synchronization completely, key storing unit can improve fault-tolerant ability, and non-system is run and provided related data；
Key push unit: for platform key being handed down to CDN platform Servers-all；By CDN platform key maker master
Dynamic initiation connects and pushes request, and key is pushed to caching server, and caching server loads voluntarily after receiving key and does
Relevant treatment；
Receive unit: for caching server receiving platform key；After platform initiates to connect and push key request, caching clothes
The reception unit of business device is for this request corresponding；
Loading unit: for the platform key that reception unit receives being loaded into the system of operation；CDN platform is under high load
Work, after obtaining new platform key, needs to load new with extending certain time (general 60～90 seconds) by original cipher key simultaneously
Key and coming into operation；
Clock unit: for the clock setting of CDN platform Servers-all；
Authentication unit: for verity and the availability of verification platform key.
For the clearer explanation present invention, below by the present invention for the clearer explanation present invention, below will be to this
The method and apparatus of bright request address and scheduling data encryption describes in detail.
See Fig. 2, for request address and the structural representation of scheduling data encryption embodiment of the present invention；Described device includes:
Request address receives unit, for receiving the content access request of CDN platform user；When user accesses a certain subject matter resource
When first send the access content requests of its target.
Request address decryption unit, the access content for receiving carries out coding deciphering；Cipher mode is all used due to all the elements
Propagate, therefore must be decrypted could use when the request address receiving user.
Scheduling data capture unit, obtains this scheduling data accessed and the Resources list address；When the user after deciphering asks ground
After location is submitted to, CDN platform is by real for return data and the Resources list dispatched to client, and client receives and ability after deciphering
Use.
Scheduling DEU data encryption unit, for encrypting scheduling data and the Resources list and returning client.
For the clearer explanation present invention, below the method and apparatus that the present invention stops undelegated caching is carried out
It is discussed in detail.
See Fig. 3, for the structural representation stoping undelegated caching embodiment of the present invention；Described device includes:
Request address receives unit, for receiving the resource updates request address of caching server；
Request uniqueness identifying unit, not visited before the address judging this renewal or access；
Request validity decision unit, for judging that this updates or the address format of access meets the requirements, accesses credible, resource
Available；
Scheduling data return unit, for returning, the scheduling data of this user access resources and the Resources list if illegally
Access and directly interrupt.
In order to be illustrated more clearly that the present invention, CDN platform key will be issued flow chart below and be described in detail.
See Fig. 4, for the flow chart of the embodiment that the CDN platform key of the present invention issues；Described method includes:
The mode combined by password generator employing order, time, random, instruction generates CDN platform key；
And new key is loaded onto platform key queue, is loaded into real-time operation system and carries out complete documentation length in system
Phase stores；
Issuing key label, will first confirm the time error of all authorization servers and password generator, and synchronize problematic awarding
The clock of power caching server；
Caching server receives key, is loaded with to current business system after verifying its data integrity and verity；
After loading successfully, by using new key, reference address and scheduling data are encrypted；
So far, CDN platform key issues part and terminates.
See Fig. 5, for the flow chart of the embodiment stoping undelegated caching of the present invention；Described method includes:
First request is decrypted after receiving request address；
To judge its uniqueness for the request address after deciphering, subsequent operation will be terminated if once accessed；
Its legitimacy is judged after being judged by uniqueness, will if the form of information, verity or availability are wrong
Terminate subsequent operation；
If request address passes through uniqueness and validity decision, platform is by the data stream of its access target subject matter of output；
And once will register and be accessed by reference address, it is to avoid it is used again；
So far, complete to stop undelegated caching.
The present invention is issued by CDN platform key, request address and scheduling data encryption, stops undelegated caching, makes
CDN content be distributed in a network opening but management close pattern under, the availability of network and the use of user can be improved
Experience；Can reduce again construction input, original system upgrading can smooth excessiveness；The rights and interests that can protect subject matter side are avoided unwarranted
The infringement that caching brings.
Claims (9)
1. guaranteeing CDN content access security and a conforming device, described device includes:
Clock synchronization unit: at the correct time synchronizing CDN platform Servers-all system clock；
Password generator: be used for generating server following time interval key；CDN platform key is that timing is changed, predominantly
Ensured the safety and reliability of system, it is to avoid the safety that key runs off and causes declines；
Key storing unit: for preserving the key of every time interval, owing to CDN platform Servers-all clock cannot have been accomplished
Full real-time synchronization, key storing unit can improve fault-tolerant ability；
Key push unit: for platform key being handed down to CDN platform Servers-all；By CDN platform key maker master
Dynamic initiation connects and pushes request, and key is pushed to caching server, and caching server loads voluntarily after receiving key and does
Relevant treatment；
Receive unit: for caching server receiving platform key；After platform initiates to connect and push key request, caching clothes
The reception unit of business device is used for responding this request；
Loading unit: for the platform key that reception unit receives being loaded into the system of operation；CDN platform is under high load
Work, after obtaining new platform key, needs to load new key simultaneously and input makes original cipher key with extending certain time
With；
Clock unit: for the clock setting of CDN platform Servers-all；
Authentication unit: for verity and the availability of verification platform key.
2. one as claimed in claim 1 guarantees CDN content access security and conforming device, it is characterised in that: for reducing
Coordinated between error raising system, has the effective property of key, and stringent synchronization Servers-all clock.
3. one as claimed in claim 1 guarantees CDN content access security and conforming device, it is characterised in that: original cipher key
The prolongation time be the 60-90 second.
4. a CDN platform key delivery method, said method comprising the steps of:
Step one, password generator employing order, time, random, instruction the mode combined generates CDN platform key；
Step 2, is loaded onto platform key queue by new key, is loaded into real-time operation system and carries out complete documentation in system
And longer-term storage；
Step 3, issues key label, will first confirm the time error of all authorization servers and password generator, and synchronize to ask
The clock authorizing caching server of topic；
Step 4, caching server receives key, is loaded with to current business system after verifying its data integrity and verity；
Step 5, after loading successfully, is encrypted using new key for reference address and scheduling data；
Step 6, CDN platform key issues part to be terminated.
5., for request address and a device for scheduling data encryption, described device includes:
Request address receives unit, for receiving the content access request of CDN platform user, when user accesses a certain subject matter resource
When first send the access content requests of its target；
Request address decryption unit, carries out coding deciphering, all uses due to all the elements cipher mode to pass the access content received
Broadcast, therefore must be decrypted could use when the request address receiving user；
Scheduling data capture unit, obtains this scheduling data accessed and the Resources list address, when the user after deciphering asks ground
After location is submitted to, CDN platform is by real for return data and the Resources list dispatched to client, and client receives and ability after deciphering
Use；
Scheduling DEU data encryption unit, for encrypting scheduling data and the Resources list and returning client.
6. stoping a device for undelegated caching, described device includes:
Request address receives unit, for receiving the resource updates request address of caching server；
Request uniqueness identifying unit, not visited before the address judging this renewal or access；
Request validity decision unit, for judging that this updates or the address format of access meets the requirements, accesses credible, resource
Available；
Scheduling data return unit, for returning, the scheduling data of this user access resources and the Resources list if illegally
Access and directly interrupt.
7. the method stoping undelegated caching, described method includes:
Step one, is decrypted request after receiving request address；
Step 2, to judge its uniqueness to the request address after deciphering, will terminate subsequent operation if once accessed；
Step 3, to be judged its legitimacy after being judged by uniqueness, if the form of information, verity or availability
Wrong will terminate subsequent operation；
Step 4, if request address is by uniqueness and validity decision, platform is by the data stream of its access target subject matter of output；
Step 5, registers once reference address and has been accessed, it is to avoid be used again；
Step 6, completes to stop undelegated caching.
8. the method guaranteeing CDN content access security, comprises the following steps:
Step one: CDN platform key issues；
Step 2: request address and scheduling data encryption, it is achieved data protection, it farther includes:
The request address of client uses and uses address after system key encryption；
Real resources address use coding after request list or the mode that redirects be sent to client；
The source address of scheduling data is can only to be accessed once by rewrite according to the reference address that key generates；
Step 3: stop undelegated caching, it farther includes:
Refusal does not has source of the returning request that the caching server of key is initiated；
The source address of scheduling data can only be accessed once, it is to avoid privately caches based on source address；
Client is opened and can be automatically updated client terminal playing key, it is ensured that it accesses effectiveness.
A kind of method guaranteeing CDN content access security, it is characterised in that: can use per hour,
Every day or the timing of certain time interval generate key；Automatically the caching server authorized it is handed down to by network；Caching server receives
Automatically load after new key, and use new double secret key request address and scheduling data encryption；Servers-all is obtaining key
Meanwhile, each system clock automatic synchronization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244576.7A CN105991635A (en) | 2015-07-08 | 2015-07-08 | Method and device for ensuring security and consistency of CDN (content delivery network) content access |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244576.7A CN105991635A (en) | 2015-07-08 | 2015-07-08 | Method and device for ensuring security and consistency of CDN (content delivery network) content access |
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Family
ID=57039969
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| CN201510244576.7A Pending CN105991635A (en) | 2015-07-08 | 2015-07-08 | Method and device for ensuring security and consistency of CDN (content delivery network) content access |
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| CN111404761A (en) * | 2019-01-02 | 2020-07-10 | 中国移动通信有限公司研究院 | Content looping detection processing method and device and computer readable storage medium |
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