CN105594153B - Key authentication method, optical line terminal and coaxial medium converter - Google Patents
Key authentication method, optical line terminal and coaxial medium converter Download PDFInfo
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- CN105594153B CN105594153B CN201480006321.0A CN201480006321A CN105594153B CN 105594153 B CN105594153 B CN 105594153B CN 201480006321 A CN201480006321 A CN 201480006321A CN 105594153 B CN105594153 B CN 105594153B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
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Abstract
The present invention provides a kind of key authentication method, optical line terminal and coaxial medium converter, wherein this method comprises: optical line terminal OLT sends key query messages to coaxial medium converter CMC；Then, OLT receives the key response message that CMC is sent；If wherein carrying the key of CMC in key response message, OLT is compared the key of the CMC carried in the key and key response message stored in the olt, obtains comparison result；Finally, OLT determines whether to activate route frequency point according to comparison result.It is runed at OLT so as to avoid illegal CMC, and then guarantees the interests of operator.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of key authentication methods, optical line terminal and coaxial matchmaker
Body converter.
Background technique
With being constantly progressive for the communication technology, other than twisted pair and optical fiber can provide wideband switch-in business, coaxial electrical
Cable can also provide wideband switch-in business.Wideband switch-in business, which is provided, using coaxial cable carries out maturation in foreign countries.
Equipment in traditional cable modem terminal system (Cable Modem Terminal Systems, CMTS)
Coaxial cable broadband access service is realized as core equipment, covers 2~5 general-purpose families.And this tradition CMTS scheme is mainly deposited
In cost of access height, upstream bandwidth is small, cannot provide symmetrical big bandwidth access, not be able to satisfy the requirement etc. of enterprise customer's application
Problem.In order to simplify CMTS system, cost is reduced, the operator of mainstream and chip development quotient propose that a kind of distribution cable is modulated
Demodulator terminal system (Distributed Cable Modem Terminal Systems, D-CMTS).Wherein D-CMTS system
System includes optical line terminal (Optical Line Terminal, OLT) and coaxial medium converter (Coax Media
Converter, CMC), CMC uplink connects OLT, and OLT uplink passes through again to be interconnected between router/three-tier switch access network
Agreement (Internet Protocol, IP) network.Connecting cable modem after CMC downlink and vision signal mixing
(Cable Modem, CM).Wherein CMC no setting is required independent IP, network management to the configuration of CMC is realized on OLT, OLT and
By inside story come bearer management message between CMC.
It can be with the problem of runing under OLT be intended to, to will affect the benefit of operator however, presently, there are illegal CMC
Benefit.
Summary of the invention
The present invention provides a kind of key authentication method, optical line terminal and coaxial medium converter, so as to avoid non-
The CMC of method is runed at OLT, and then guarantees the interests of operator.
In a first aspect, the embodiment of the invention provides a kind of key authentication methods, comprising: optical line terminal OLT is to coaxial
Medium converter CMC sends key query messages；The OLT receives the key response message that the CMC is sent；If the key
The key of the CMC is carried in response message, then the OLT disappears to the key being stored in the OLT and the key response
The key of the CMC carried in breath is compared, and obtains comparison result；The OLT determines whether according to the comparison result
Activate route frequency point.
With reference to first aspect, in the first possible embodiment of first aspect, the OLT is according to the comparison result
Determine whether activate route frequency point, specifically include: if the key of the CMC carried in the key response message be stored in
All keys in the OLT are inconsistent, then the route frequency point is arranged and is in off state；If in the key response message
The key of the CMC carried and at least one key agreement being stored in the OLT, then it is sharp that the route frequency point, which is arranged,
State living.
The first possible embodiment with reference to first aspect, in second of possible embodiment of first aspect, if
The key of the CMC carried in the key response message and at least one key agreement being stored in the OLT, and institute
Stating the key of the CMC carried in key response message and being stored in the OLT is to distribute described CMC the last time
Key is inconsistent；Then the OLT sends first key update message to the CMC, and the first key update message carrying is
The key that described CMC the last time distributes is so that the CMC more new key.
With reference to first aspect or the first possible embodiment of first aspect, the third in first aspect may be implemented
In mode, further includes: if not including the key of the CMC in the key response message, the OLT is sent to the CMC
Second key updating message, it is the key distributed described CMC the last time that the second key updating message, which carries,.
Second aspect, the embodiment of the invention provides a kind of key authentication methods, comprising: coaxial medium converter CMC connects
Receive the key query messages that optical line terminal OLT is sent；The CMC sends key response message to the OLT, and the key is rung
Answer the key that the CMC is carried in message.
In conjunction with second aspect, in the first possible embodiment of second aspect, further includes: described in the CMC is received
The first key update message that OLT is sent, the first key update message carrying distribute close for described CMC the last time
Key.
The third aspect, the embodiment of the invention provides a kind of optical line terminal OLTs, comprising: sending module is used for coaxial
Medium converter CMC sends key query messages；Receiving module, the key response message sent for receiving the CMC；Compare
Module, if the key for carrying the CMC in the key response message, the comparison module is to being stored in the OLT
In key and the key response message in the key of the CMC that carries be compared, obtain comparison result；Determine mould
Block activates route frequency point for determining whether according to the comparison result.
In conjunction with the third aspect, in the first possible embodiment of the third aspect, the determining module is specifically used for:
If the key of the CMC carried in the key response message and all keys being stored in the OLT are inconsistent, it is arranged
The route frequency point is in off state；If the key of the CMC carried in the key response message and being stored in the OLT
At least one key agreement, then it is state of activation that the route frequency point, which is arranged,.
In conjunction with the first possible embodiment of the third aspect, in second of possible embodiment of the third aspect, institute
It states sending module to be also used to, if the key of the CMC carried in the key response message and being stored in the OLT extremely
A few key agreement, and the key of the CMC carried in the key response message and to be stored in be institute in the OLT
It is inconsistent to state the key that CMC the last time distributes；Then the sending module sends first key update message, institute to the CMC
Stating first key update message and carrying is the key that distributes of described CMC the last time so that the CMC more new key.
In conjunction with the first of the third aspect or the third aspect possible embodiment, the third in the third aspect may be implemented
In mode, the sending module is also used to: if in the key response message not including the key of the CMC, the transmission
Module sends the second key updating message to the CMC, and it is described CMC the last time point that the second key updating message, which carries,
The key matched.
Fourth aspect, the embodiment of the invention provides a kind of coaxial medium converter CMC, comprising: receiving module, for connecing
Receive the key query messages that optical line terminal OLT is sent；Sending module, it is described for sending key response message to the OLT
The key of CMC is carried in key response message.
In conjunction with fourth aspect, in the first possible embodiment of fourth aspect, the receiving module is also used to receive
The first key update message that the OLT is sent, it is what described CMC the last time distributed that the first key update message, which carries,
Key.
The present invention provides a kind of key authentication method, optical line terminal and coaxial medium converter, wherein this method packet
It includes: firstly, optical line terminal OLT sends key query messages to coaxial medium converter CMC；It is sent secondly, OLT receives CMC
Key response message；If wherein carrying the key of CMC in key response message, OLT to storage key in the olt with it is close
The key of the CMC carried in key response message is compared, and obtains comparison result；Since OLT determines whether according to comparison result
Activate route frequency point.It is runed at OLT so as to avoid illegal CMC, and then guarantees the interests of operator.
Detailed description of the invention
Fig. 1 is a kind of flow chart for key authentication method that one embodiment of the invention provides；
Fig. 2 be another embodiment of the present invention provides a kind of key authentication method flow chart；
Fig. 3 is the structural schematic diagram for the optical line terminal OLT that one embodiment of the invention provides；
Fig. 4 is the structural schematic diagram for the coaxial medium converter CMC that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of flow chart for key authentication method that one embodiment of the invention provides, and this method can be applied to D-
The communication scenes between OLT and CMC in CMTS system, the executing subject of this method are OLT, wherein the tool of key authentication method
Body process includes:
S101: optical line terminal OLT sends key query messages to coaxial medium converter CMC.
Specifically, when network management by OLT to CMC configuring cipher key when, network management can be stored in by OLT to the key that CMC is configured
In flash memory (FLASH), wherein the last key can be placed on the foremost that FLASH saves cipher key address by OLT, usually
10 history keys are at most cached in FLASH, once be more than 10, then OLT according to the sequencing deletion first of key at
Key in address backmost, after usual key is using secure hash algorithm (Secure Hash Algorithm, SHA) encryption
It is stored in FLASH.Anti-theft state, respectively disable and enable there are two types of also being saved in the FLASH of OLT simultaneously.In D-
No matter when CMC in CMTS system is active, key whether is preserved in the FLASH of current OLT, whether is anti-theft function
It is enable state, OLT actively can send key query messages to CMC.
Optionally, the key in OLT and CMC is what operator was arranged by network management.When operator passes through network management more Xinmi City
When key, then OLT and CMC included in D-CMTS system are required to more new key；Correspondingly, when operator is stopped by network management
When using key, then OLT and CMC included in D-CMTS system are required to stop using key.
S102:OLT receives the key response message that CMC is sent.
S103: if carrying the key of CMC in key response message, OLT is to the key and key response stored in the olt
The key of the CMC carried in message is compared, and obtains comparison result.
Optionally, OLT is compared the key of the CMC carried in the key and key response message stored in the olt,
Comparison result is obtained, is specifically included: one, all keys of the key of the CMC carried in key response message and storage in the olt
It is inconsistent.Two, the key of the CMC carried in key response message and at least one key agreement being stored in OLT.
S104:OLT determines whether to activate route frequency point according to comparison result.
Optionally, the OLT determines whether to activate route frequency point according to the comparison result, specifically includes:
If the key of the CMC carried in the key response message and all keys being stored in the OLT are different
It causes, then the route frequency point is set and is in off state；
If the key of the CMC carried in the key response message and at least one key one being stored in the OLT
It causes, then it is state of activation that the route frequency point, which is arranged,.
Further, if the key of the CMC carried in the key response message be stored in the OLT at least one
A key agreement, and the key of the CMC carried in the key response message and be stored in the OLT be the CMC most
The key of nearly primary distribution is inconsistent；Then the OLT sends first key update message to the CMC, and the first key is more
It is the key that distributes of described CMC the last time so that the CMC more new key that new information, which carries,.
Optionally, if not including the key of the CMC in the key response message, the OLT is sent to the CMC
Second key updating message, it is the key distributed described CMC the last time that the second key updating message, which carries,.
Further, when in OLT without storing any key, when OLT has received key response message, and key
The key of CMC is also carried in response message, then OLT can also be arranged the route frequency point and be in off state.
Present embodiments provide a kind of key authentication method, comprising: firstly, optical line terminal OLT is to coaxial media conversion
Device CMC sends key query messages, secondly, OLT receives the key response message that CMC is sent, if carrying the key of CMC in CMC,
Then OLT is compared the key of the CMC carried in the key and key response message stored in the olt, obtains comparison result,
Comparison result is obtained, wherein OLT determines whether to activate route frequency point according to comparison result.So that when there are illegal CMC
Be bound to failed authentication when accessing OLT, and then maintains the interests of operator.
Fig. 2 be another embodiment of the present invention provides a kind of key authentication method flow chart, this method can be applied to D-
The communication scenes between OLT and CMC in CMTS system, the executing subject of this method are CMC, wherein the tool of key authentication method
Body process includes:
S201: coaxial medium converter CMC receives the key query messages that optical line terminal OLT is sent.
Specifically, when the CMC in D-CMTS system is active, no matter whether save in the FLASH of current OLT
There is key, whether anti-theft function is enable state, and OLT actively can send key query messages to CMC.
S202:CMC sends key response message to OLT.
Specifically, if carrying the key of CMC in the key response message.Then the OLT is to being stored in the OLT
The key of the CMC carried in key and the key response message is compared, and obtains comparison result so that the OLT according to
The comparison result determines whether to activate route frequency point.Wherein comparison result specifically includes: one, carrying in key response message
CMC key and storage all keys in the olt it is inconsistent.Two, the key of the CMC carried in key response message with
At least one key agreement being stored in OLT.
Optionally, if the key of the CMC carried in the key response message and being stored at least one of described OLT
Key agreement, and the key of the CMC carried in the key response message with to be stored in the OLT be that the CMC is nearest
The key of primary distribution is inconsistent, further includes: and the CMC receives the first key update message that the OLT is sent, and described first
It is the key distributed described CMC the last time that key updating message, which carries,.Wherein, first key update message may also include CMC
History key, after at this moment CMC receives the first key update message, further includes: to the key of the CMC with it is described
The history key of CMC entrained by first key update message is matched；If successful match, the CMC updates the CMC
Key be first key update message carrying be the key distributed described CMC the last time.
Further, if in the key response message not including the key of the CMC, the CMC receives the OLT
The the second key updating message sent, it is the key distributed described CMC the last time that the second key updating message, which carries,.Its
In, the current key that CMC will be updated it is the key of last update.
Present embodiments provide a kind of key authentication method, comprising: disappear firstly, CMC receives the key inquiry that OLT is sent
Breath；Secondly, CMC sends key response message to OLT, so that OLT in storage key in the olt and key response message to taking
The key of the CMC of band is compared, and obtains comparison result, while OLT determines whether to activate route frequency point according to comparison result, from
And illegal CMC is avoided to access OLT, and then from maintaining the interests of operator.
Fig. 3 is the structural schematic diagram for the optical line terminal OLT that one embodiment of the invention provides, which uses
In executing key authentication method, wherein OLT includes: sending module 301, is looked into for sending key to coaxial medium converter CMC
Ask message；Receiving module 302, the key response message sent for receiving the CMC；Comparison module 303, if for described close
The key of CMC is carried in key response message, then the comparison module 303 is to the key and the key being stored in the OLT
The key of the CMC carried in response message is compared, and obtains comparison result；Determining module 304, for relatively being tied according to described
Fruit determines whether to activate route frequency point.
Optionally, the determining module 304, is specifically used for: if the key of the CMC carried in the key response message with
All keys being stored in the OLT are inconsistent, then the route frequency point is arranged and is in off state；If the key response
The key of the CMC carried in message and at least one key agreement being stored in the OLT, then the route frequency point, which is arranged, is
State of activation.
The sending module 301 is also used to, if the key of the CMC carried in the key response message and being stored in described
At least one key agreement in OLT, and the key of the CMC carried in the key response message and be stored in the OLT
It is that the key that distributes described CMC the last time is inconsistent；Then the sending module 301 sends first key more to the CMC
New information, it is the key that distributes described CMC the last time so that the more Xinmi City the CMC that the first key update message, which carries,
Key.
Further, the sending module 301 is also used to: if not including the close of the CMC in the key response message
Key, then the sending module sends the second key updating message to the CMC, and the second key updating message carrying is described
The key that CMC the last time distributes.
Optical line terminal OLT provided in this embodiment can be used for executing the implementation technology of Fig. 1 counterpart keys method for authenticating
Scheme, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 4 is the structural schematic diagram for the coaxial medium converter CMC that one embodiment of the invention provides, and the CMC is for executing
Key authentication method, wherein CMC include: include: receiving module 401, for receive optical line terminal OLT transmission key inquiry
Message；Sending module 402 carries the close of CMC in the key response message for sending key response message to the OLT
Key.So that the OLT carries out the key of the CMC carried in the key and the key response message being stored in the OLT
Compare, obtain comparison result, so that the OLT determines whether to activate route frequency point according to the comparison result.
Optionally, the receiving module 401, if the key for the CMC for being also used to carry in the key response message with deposit
It stores up at least one key agreement in the OLT, and the key of the CMC carried in the key response message and is stored in institute
State that the key in OLT being to distribute described CMC the last time is inconsistent, then the receiving module 401 receives what the OLT was sent
First key update message, it is the key distributed described CMC the last time that the first key update message, which carries,.
Optionally, first key update message may also include the history key of CMC, at this moment CMC further include: update module,
For after the receiving module 401 receives the first key update message, the update module to be close to the CMC's
Key is matched with the history key that the first key updates entrained CMC；If successful match, the update module is more
The key of the new CMC is that the carrying of first key update message is the key distributed described CMC the last time.
Further, the receiving module 401, if being also used in the key response message not include the close of the CMC
Key, then the receiving module 401 receives the second key updating message that the OLT is sent, and the second key updating message is taken
Band is the key distributed described CMC the last time.
Coaxial medium converter CMC provided in this embodiment, can be used for executing the implementation of Fig. 2 counterpart keys method for authenticating
Technical solution, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of key authentication method characterized by comprising
Optical line terminal OLT sends key query messages to coaxial medium converter CMC；
The OLT receives the key response message that the CMC is sent；
If carrying the key of the CMC in the key response message, the OLT to the key that is stored in the OLT with
The key of the CMC carried in the key response message is compared, and obtains comparison result；
The OLT determines whether to activate route frequency point according to the comparison result；
Wherein, the OLT determines whether to activate route frequency point according to the comparison result, specifically includes:
If the key of the CMC carried in the key response message and all keys being stored in the OLT are different
It causes, then the route frequency point is set and is in off state；
If the key of the CMC carried in the key response message and at least one key one being stored in the OLT
It causes, then it is state of activation that the route frequency point, which is arranged,；
The method also includes: if the key of the CMC carried in the key response message and being stored in the OLT
At least one key agreement, and the key of the CMC carried in the key response message is with being stored in the OLT
The key that described CMC the last time distributes is inconsistent；
Then the OLT sends first key update message to the CMC, and it is the CMC that the first key update message, which carries,
The key of the last time distribution is so that the CMC more new key.
2. the method according to claim 1, wherein further include: if not including institute in the key response message
The key of CMC is stated, then the OLT sends the second key updating message to the CMC, and the second key updating message carrying is
The key that described CMC the last time distributes.
3. a kind of key authentication method characterized by comprising
Coaxial medium converter CMC receives the key query messages that optical line terminal OLT is sent；
The CMC sends key response message to the OLT, and the key of the CMC is carried in the key response message, so that
The OLT compares the key of the CMC carried in the key being stored in the OLT and the key response message
Compared with obtaining comparison result；The OLT according to the comparison result determine whether activate route frequency point, wherein the OLT according to
The comparison result determines whether to activate route frequency point, specifically include:
If the key of the CMC carried in the key response message and all keys being stored in the OLT are different
It causes, then the route frequency point is set and is in off state；
If the key of the CMC carried in the key response message and at least one key one being stored in the OLT
It causes, then it is state of activation that the route frequency point, which is arranged,；
The method also includes:
If the key of the CMC carried in the key response message and at least one key one being stored in the OLT
It causes, and the key of the CMC carried in the key response message and to be stored in the OLT be the CMC nearest one
The key of sub-distribution is inconsistent；
The CMC receives the first key update message that the OLT is sent, and the first key update message carrying is described
The key that CMC the last time distributes.
4. a kind of optical line terminal OLT characterized by comprising
Sending module, for sending key query messages to coaxial medium converter CMC；
Receiving module, the key response message sent for receiving the CMC；
Comparison module, if the key for carrying the CMC in the key response message, the comparison module is to being stored in
The key of the CMC carried in key and the key response message in the OLT is compared, and obtains comparison result；
Determining module activates route frequency point for determining whether according to the comparison result；
Wherein, the determining module, is specifically used for:
If the key of the CMC carried in the key response message and all keys being stored in the OLT are different
It causes, then the route frequency point is set and is in off state；
If the key of the CMC carried in the key response message and at least one key one being stored in the OLT
It causes, then it is state of activation that the route frequency point, which is arranged,；
The sending module is also used to, if the key of the CMC carried in the key response message and being stored in the OLT
In at least one key agreement, and the key of the CMC carried in the key response message and be stored in the OLT
It is that the key that distributes described CMC the last time is inconsistent；
Then the sending module sends first key update message to the CMC, and the first key update message carries as institute
The key that CMC the last time distributes is stated so that the CMC more new key.
5. optical line terminal OLT according to claim 4, which is characterized in that the sending module is also used to: if described close
It does not include the key of the CMC in key response message, then the sending module sends the second key updating message to the CMC,
It is the key distributed described CMC the last time that the second key updating message, which carries,.
6. a kind of coaxial medium converter CMC characterized by comprising
Receiving module, for receiving the key query messages of optical line terminal OLT transmission；
Sending module carries the close of the CMC in the key response message for sending key response message to the OLT
Key, so that key of the OLT to the CMC carried in the key and the key response message being stored in the OLT
It is compared, obtains comparison result；The OLT determines whether to activate route frequency point according to the comparison result, wherein described
OLT determines whether to activate route frequency point according to the comparison result, specifically include:
If the key of the CMC carried in the key response message and all keys being stored in the OLT are different
It causes, then the route frequency point is set and is in off state；
If the key of the CMC carried in the key response message and at least one key one being stored in the OLT
It causes, then it is state of activation that the route frequency point, which is arranged,；
Wherein, if the key of the CMC carried in the key response message with to be stored at least one of described OLT close
Key is consistent, and the key of the CMC carried in the key response message and be stored in the OLT be the CMC most
The key of nearly primary distribution is inconsistent；
The receiving module is also used to receive the first key update message that the OLT is sent, the first key update message
Carrying is the key distributed described CMC the last time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/084097 WO2016023155A1 (en) | 2014-08-11 | 2014-08-11 | Encryption key authentication method, optical line terminal and coax media converter |
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| Publication Number | Publication Date |
|---|---|
| CN105594153A CN105594153A (en) | 2016-05-18 |
| CN105594153B true CN105594153B (en) | 2019-10-18 |
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| CN (1) | CN105594153B (en) |
| BR (1) | BR112017002670A2 (en) |
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| WO (1) | WO2016023155A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064599A (en) * | 2006-04-26 | 2007-10-31 | 华为技术有限公司 | Method and system for optical network authentication, cipher key negotiation method and system and optical line terminal and optical network unit |
| CN101304309A (en) * | 2007-05-10 | 2008-11-12 | 中兴通讯股份有限公司 | Method for managing key of GPON system |
| CN102739436A (en) * | 2011-04-05 | 2012-10-17 | 美国博通公司 | Unified network management system and method of hybrid fiber coaxial (hfc) network |
| CN102739421A (en) * | 2011-04-08 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for controlling coaxial broadband access terminal |
| CN103581060A (en) * | 2012-08-03 | 2014-02-12 | 华为技术有限公司 | Method, device and system for distributing sub-carriers |
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| Publication number | Publication date |
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| MX2017001791A (en) | 2017-05-23 |
| BR112017002670A2 (en) | 2018-07-03 |
| CN105594153A (en) | 2016-05-18 |
| WO2016023155A1 (en) | 2016-02-18 |
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