CN109429227A - A kind of signal processing method, device, equipment and computer readable storage medium - Google Patents
A kind of signal processing method, device, equipment and computer readable storage medium Download PDFInfo
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- CN109429227A CN109429227A CN201710468582.XA CN201710468582A CN109429227A CN 109429227 A CN109429227 A CN 109429227A CN 201710468582 A CN201710468582 A CN 201710468582A CN 109429227 A CN109429227 A CN 109429227A
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- network side
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Computer Security & Cryptography (AREA)
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- Telephonic Communication Services (AREA)
Abstract
The present invention provides a kind of signal processing method, device, equipment and computer readable storage medium, is related to field of communication technology, to improve the safety of gsm system.Signal processing method of the invention, comprising: obtain the paging message that the lateral called terminal of network is sent；Page-response message is sent to the network side according to the paging message；It determines whether to establish called speech channel for the called terminal；If called speech channel can be established for the called terminal, it is determined that the network side does not open called authentication functions；Otherwise, it determines the network side opens called authentication functions.The present invention can be improved the safety of gsm system.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of signal processing method, device, equipment and computer-readable
Storage medium.
Background technique
In recent years, as (Global System for Mobile Communication, the whole world are mobile logical by traditional GSM
Letter system) mobile communication system items technology tends to be mature, and it is increasing for the attack report and event of gsm system.At this
One of threaten often referred in a little a large amount of relevant reports is to kidnap called calling.
Wherein, the realization principle that calling is kidnapped is called in gsm system are as follows: seek to called subscriber earlier than true terminal
Before calling for that (Paging Request) message is asked to respond, true terminal is pretended to be to return to page response to gsm system, realized
The voice speech channel of called subscriber is kidnapped, and other such as short messages, voice can be carried out after kidnapping speech channel and operated.
It is held as a hostage for the called calling of GSM, does not there is reliable way to solve the problems, such as this yet in the prior art.Therefore, existing
Gsm system there are still certain security risks.
Summary of the invention
In view of this, the present invention provides a kind of signal processing method, device, equipment and computer readable storage medium, with
Improve the safety of gsm system.
In order to solve the above technical problems, the present invention provides a kind of signal processing method, comprising:
Obtain the paging message that the lateral called terminal of network is sent；
Page-response message is sent to the network side according to the paging message；
It determines whether to establish called speech channel for the called terminal；
If called speech channel can be established for the called terminal, it is determined that the network side does not open called authentication functions；It is no
Then, determine that the network side opens called authentication functions.
It is wherein, described that page-response message is sent to the network side according to the paging message, comprising:
Obtain user identifier type and the ident value in the paging message；
To the network side channel request message, and receive the assignment signaling immediately of the network side；
Signaling is assigned immediately according to described, constructs page-response message using the user identifier type and ident value, and
The page-response message is sent to the network side.
It is wherein, described to determine whether to establish called speech channel for the called terminal, comprising:
Determine whether to have received the network side establishes message；
If have received the network side establishes message, it is determined that called speech channel can be established for the called terminal；It is no
Then determination cannot establish speech channel for the called terminal.
Wherein, the method also includes:
It is that called terminal foundation is called according to the message of establishing if having received the network side establishes message
Speech channel.
Second aspect, the embodiment of the present invention provide a kind of signal processing apparatus, comprising:
Module is obtained, the paging message sent for obtaining the lateral called terminal of network；
Sending module, for sending page-response message to the network side according to the paging message；
Judgment module establishes called speech channel for the called terminal for determining whether；
Determining module, if for called speech channel can be established for the called terminal, it is determined that the network side does not open quilt
It is authentication functions；Otherwise, it determines the network side opens called authentication functions.
Wherein, the sending module includes:
Acquisition submodule, for obtaining user identifier type and ident value in the paging message；
Receiving submodule is used for the network side channel request message, and receives referring to immediately for the network side
With signaling；
Sending submodule is constructed for assigning signaling immediately according to described using the user identifier type and ident value
Page-response message, and the page-response message is sent to the network side.
Wherein, the judgment module includes:
First determines submodule, and be used to determine whether to have received the network side establishes message；
Second determines submodule, if establishing message for have received the network side, it is determined that can be described be called
Terminal establishes called speech channel；Otherwise determination cannot establish speech channel for the called terminal.
Wherein, described device further include:
Module is established in speech channel, if message is established for have received the network side, according to the message of establishing for institute
It states called terminal and establishes called speech channel.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment, including memory, processor and are stored in described deposit
On reservoir and the computer program that can run on the processor；It is characterized in that, when the processor executes described program
Realize signal processing method as described in relation to the first aspect.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, are stored thereon with computer program,
It is characterized in that, realizing the step in signal processing method described in first aspect when the program is executed by processor.
The advantageous effects of the above technical solutions of the present invention are as follows:
In embodiments of the present invention, page-response message is sent according to the paging message of network side.Disappear having sent response
After breath, determine whether to establish called speech channel for the called terminal.If can, determine that the network side does not open called authentication function
Energy；Otherwise, it determines the network side opens called authentication functions.Therefore, it can determine net using the scheme of the embodiment of the present invention
Whether network side opens called authentication, so as to assess the safety of gsm system, ensure that the safety of gsm system.
Detailed description of the invention
Fig. 1 is the flow chart of the signal processing method of the embodiment of the present invention；
Fig. 2 is the system architecture diagram that the signal processing method of the embodiment of the present invention is applied；
Fig. 3 is the schematic diagram of the signal processing apparatus of the embodiment of the present invention；
Fig. 4 is the schematic diagram of the sending module of the embodiment of the present invention；
Fig. 5 is the schematic diagram of the judgment module of the embodiment of the present invention；
Fig. 6 is the structure chart of the signal processing apparatus of the embodiment of the present invention；
Fig. 7 is the schematic diagram of the electronic equipment of the embodiment of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, specific embodiments of the present invention will be described in further detail.Following reality
Example is applied for illustrating the present invention, but is not intended to limit the scope of the invention.
As shown in Figure 1, the signal processing method of the embodiment of the present invention, comprising:
Step 101 obtains the paging message that the lateral called terminal of network is sent.
In embodiments of the present invention, can disappear in real time or according to the paging that some preset time interval monitoring terminal is sent
Breath.Wherein, user identifier type and ident value can be carried in the paging message.Wherein, user identifier type can be IMSI
(International Mobile Subscriber Identification Number, international mobile subscriber identity),
TMSI (Temporary Mobile Subscriber Identity, temporary mobile subscriber identity) etc..
Step 102 sends page-response message to the network side according to the paging message.
In embodiments of the present invention, when user identifier type and mark in the paging message can be obtained in paging message
When knowledge value, then user identifier type and the ident value in the paging message are obtained.Otherwise, can continue to monitor whether to receive
To the paging message of network side.Then, Xiang Suoshu network side channel request message (CHANNEL REQUEST), and connecing
When receiving the signaling of assignment immediately of the network side, signaling is assigned immediately according to described, utilizes the user identifier type and mark
Knowledge value constructs page-response message, and sends the page-response message to the network side.If not receiving network side
Signaling is assigned immediately, can continue the paging message for monitoring whether that network side can be received.
Step 103 determines whether to establish called speech channel for the called terminal.
According to analysis, if network side opens called authentication functions, network side will trigger authentication, encryption flow.This
When, information needed for will be unable to get true called terminal authentication, also can not just substitute it is true it is called set up it is called
Speech channel.And if network side does not open called authentication functions, network side will not trigger authentication, encryption flow, but directly send out
Send SETUP (foundation) message.If having received SETUP message, called terminal can be replaced to set up called speech channel.As a result,
It can determine whether to establish called speech channel for the called terminal according to whether have received the message of establishing of network side.If connecing
Have received the network side establishes message, it is determined that called speech channel can be established for the called terminal；Otherwise determination cannot be
The called terminal establishes speech channel.
If step 104 can establish called speech channel for the called terminal, it is determined that the network side does not open called authentication
Function；Otherwise, it determines the network side opens called authentication functions.
If called speech channel can be established for the called terminal, it is determined that the network side does not open called authentication functions, root
It is that the called terminal establishes called speech channel according to the message of establishing.Otherwise, it determines the network side opens called authentication function
Energy.
In embodiments of the present invention, page-response message is sent according to the paging message of network side.Disappear having sent response
After breath, determine whether to establish called speech channel for the called terminal.If can, determine that the network side does not open called authentication function
Energy；Otherwise, it determines the network side opens called authentication functions.Therefore, it can determine net using the scheme of the embodiment of the present invention
Whether network side opens called authentication, so as to assess the safety of gsm system, ensure that the safety of gsm system.
As shown in Fig. 2, showing the system architecture diagram of the method application of the embodiment of the present invention.The system includes: signaling prison
Brake module 201, flow monitoring functional module 203, manual features analysis module 204, is divided at signaling sending function module 202
Analyse result output module 205 etc..
Wherein, monitoring signaling functional module 201, for realizing over the wireless channel, what real time monitoring network was sent
PAGING REQUEST paging message.Gsm system is by common control channel (Common Control to called terminal
Channel, CCCH), PAGING REQUEST message is issued, to trigger to called paging.
Specifically, monitoring signaling functional module needs real time scan now to net wireless frequency point, locked frequency point, and in public control
The PAGING REQUEST message that network side issues is monitored whether on channel.If monitoring message above, enter signaling
Sending function is further processed；If not monitoring message above, rescan the wireless frequency point of existing net, locked frequency point and
The PAGING REQUEST message that network side issues is monitored whether in common control channel, and does judgement processing as above again.
Signaling sending function module 202, for realizing over the wireless channel, for the paging message received, extraction is sought
Exhale user identifier type and ident value in message；Assignment procedure immediately is being carried out, and after distributing dedicated control channel, utilized
The user identifier type and ident value extracted from paging message constructs PAGING RESPONSE message, and is sent to net
Network side.
Specifically, the function is mainly assigned by extraction user identifier, judgement immediately, transmission page response forms.
(1) user identifier is extracted
For PAGING REQUEST paging message received from monitoring signaling function, user identifier is judged whether there is
Type and ident value；If there is user identifier type and ident value, then user type mark and sign value therein are obtained, and
The stage is assigned immediately into judgement.If there is no user identifier type and ident value, then monitoring signaling function is returned to, after
It is continuous to monitor paging message.
(2) judgement assigns immediately
There are after user identifier type and ident value in judging PAGING REQUEST paging message, sent to network side
Channel request (CHANNEL REQUEST) message, and judge whether that the assignment immediately that network side issues can be received
(IMMEDIATE ASSIGNMENT) signaling.If receiving and assigning signaling immediately, enters and send the page response stage, if
It does not receive and assigns signaling immediately, then return to monitoring signaling function, continue to monitor paging message.
(3) page response is sent
After judgement receives and assigns signaling immediately, with the user identifier obtained from PAGING REQUEST paging message
Type and ident value construct PAGING RESPONSE message, and are sent to network side.Sending PAGING RESPONSE message
Afterwards, it is further processed into flow monitoring function.
Flow monitoring functional module 203 is used for after sending RAGING RESPONSE message by signaling sending function,
Real time monitoring wireless channel, checks whether network side issues authentication, encryption flow；If network side does not trigger authentication, encryption stream
Journey, and SETUP message is directly transmitted, flow monitoring function is then responsible for the interaction of follow-up business process and is connected, and substitutes true terminal and builds
Erect called speech channel；If network side triggering authentication, flow monitoring function is by that can not get real user terminal authentication institute
Information is needed, true terminal can not be substituted and set up called speech channel, the continuation of monitoring signaling function is returned at this time and supervises over the wireless channel
Survey paging request message.
Manual features analysis module 204 passes through monitoring signaling function, signaling sending function, flow monitoring function for being directed to
The Signalling exchange message that can be obtained, carries out manual analysis judgement.
Result output module 205 is analyzed, is used to indicate network side for that will be analyzed and determined by manual features as a result, exporting
Called authentication is opened for gsm system and does not open the information of called authentication.
For the Signalling exchange message obtained by monitoring signaling function, signaling sending function, flow monitoring function, carry out
Manual analysis judgement；It will be analyzed and determined by manual features and open called authentication as a result, being classified as gsm system and do not open called
Authentication distinguishes output.
In embodiments of the present invention, page-response message is sent according to the paging message of network side.Disappear having sent response
After breath, determine whether to establish called speech channel for the called terminal.If can, determine that the network side does not open called authentication function
Energy；Otherwise, it determines the network side opens called authentication functions.Therefore, it can determine net using the scheme of the embodiment of the present invention
Whether network side opens called authentication, so as to assess the safety of gsm system, ensure that the safety of gsm system, and can basis
The result of output carries out corresponding remedial measure.
As shown in figure 3, the signal processing apparatus of the embodiment of the present invention, comprising:
Module 301 is obtained, the paging message sent for obtaining the lateral called terminal of network；Sending module 302 is used for root
Page-response message is sent to the network side according to the paging message；Judgment module 303, for determining whether to be described called
Terminal establishes called speech channel；Determining module 304, if for called speech channel can be established for the called terminal, it is determined that the net
Called authentication functions are not opened in network side；Otherwise, it determines the network side opens called authentication functions.
Wherein, as shown in figure 4, the sending module 302 includes:
Acquisition submodule 3021, for obtaining user identifier type and ident value in the paging message；Receive submodule
Block 3022 is used for the network side channel request message, and receives the assignment signaling immediately of the network side；Send son
Module 3023 is disappeared for assigning signaling immediately according to described using the user identifier type and ident value construction page response
Breath, and the page-response message is sent to the network side.
As shown in figure 5, the judgment module 303 includes:
First determines submodule 3031, and be used to determine whether to have received the network side establishes message；Second determines
Submodule 3032, if establishing message for have received the network side, it is determined that can be established for the called terminal called
Speech channel；Otherwise determination cannot establish speech channel for the called terminal.
As shown in fig. 6, the device of the embodiment of the present invention may also include that module 305 is established in speech channel, if for having received
That states network side establishes message, is that the called terminal establishes called speech channel according to the message of establishing.
The working principle of device of the present invention can refer to the description of preceding method embodiment.
As shown in fig. 7, the embodiment of the invention also provides a kind of electronic equipment, comprising:
Processor 700 executes following process: obtaining net by transceiver 710 for reading the program in memory 720
The paging message that the lateral called terminal of network is sent；Page-response message is sent to the network side according to the paging message；Really
It is surely no to establish called speech channel for the called terminal；If called speech channel can be established for the called terminal, it is determined that the net
Called authentication functions are not opened in network side；Otherwise, it determines the network side opens called authentication functions.
Transceiver 710, for sending and receiving data under the control of processor 700.
Wherein, in Fig. 7, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 700
The various circuits for the memory that the one or more processors and memory 720 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 710 can
To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided
Member.Processor 700, which is responsible for management bus architecture and common processing, memory 720, can store processor 700 and is executing operation
When used data.
Processor 700, which is responsible for management bus architecture and common processing, memory 720, can store processor 700 and is holding
Used data when row operation.
Processor 700 is also used to, and obtains user identifier type and ident value in the paging message；To the network side
Channel request message, and receive the assignment signaling immediately of the network side；Signaling is assigned immediately according to described, using described
User identifier type and ident value construct page-response message, and send the page-response message to the network side.
Processor 700 is also used to, it is determined whether have received the network side establishes message；If having received the net
Message is established in network side, it is determined that called speech channel can be established for the called terminal；Otherwise determination cannot be the called terminal
Establish speech channel.
Processor 700 is also used to, and is that the called terminal establishes called speech channel according to the message of establishing.
In addition, the computer readable storage medium of the embodiment of the present invention, for storing computer program, the computer journey
Sequence can be executed by processor and perform the steps of
Obtain the paging message that the lateral called terminal of network is sent；
Page-response message is sent to the network side according to the paging message；
It determines whether to establish called speech channel for the called terminal；
If called speech channel can be established for the called terminal, it is determined that the network side does not open called authentication functions；It is no
Then, determine that the network side opens called authentication functions.
It is wherein, described that page-response message is sent to the network side according to the paging message, comprising:
Obtain user identifier type and the ident value in the paging message；
To the network side channel request message, and receive the assignment signaling immediately of the network side；
Signaling is assigned immediately according to described, constructs page-response message using the user identifier type and ident value, and
The page-response message is sent to the network side.
It is wherein, described to determine whether to establish called speech channel for the called terminal, comprising:
Determine whether to have received the network side establishes message；
If have received the network side establishes message, it is determined that called speech channel can be established for the called terminal；It is no
Then determination cannot establish speech channel for the called terminal.
Wherein, if having received the network side establishes message, the method also includes:
It is that the called terminal establishes called speech channel according to the message of establishing.
In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other
Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention
Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of signal processing method characterized by comprising
Obtain the paging message that the lateral called terminal of network is sent；
Page-response message is sent to the network side according to the paging message；
It determines whether to establish called speech channel for the called terminal；
If called speech channel can be established for the called terminal, it is determined that the network side does not open called authentication functions；Otherwise, really
The fixed network side opens called authentication functions.
2. the method according to claim 1, wherein described send according to the paging message to the network side
Page-response message, comprising:
Obtain user identifier type and the ident value in the paging message；
To the network side channel request message, and receive the assignment signaling immediately of the network side；
Signaling is assigned immediately according to described, constructs page-response message using the user identifier type and ident value, and to institute
It states network side and sends the page-response message.
3. the method according to claim 1, wherein described determine whether to establish called words for the called terminal
Road, comprising:
Determine whether to have received the network side establishes message；
If have received the network side establishes message, it is determined that called speech channel can be established for the called terminal；Otherwise really
Surely speech channel cannot be established for the called terminal.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
It is that the called terminal establishes called words according to the message of establishing if having received the network side establishes message
Road.
5. a kind of signal processing apparatus characterized by comprising
Module is obtained, the paging message sent for obtaining the lateral called terminal of network；
Sending module, for sending page-response message to the network side according to the paging message；
Judgment module establishes called speech channel for the called terminal for determining whether；
Determining module, if for called speech channel can be established for the called terminal, it is determined that the network side does not open called mirror
Weigh function；Otherwise, it determines the network side opens called authentication functions.
6. device according to claim 5, which is characterized in that the sending module includes:
Acquisition submodule, for obtaining user identifier type and ident value in the paging message；
Receiving submodule is used for the network side channel request message, and receives the letter of assignment immediately of the network side
It enables；
Sending submodule utilizes the user identifier type and ident value construction paging for assigning signaling immediately according to described
Response message, and the page-response message is sent to the network side.
7. device according to claim 5, which is characterized in that the judgment module includes:
First determines submodule, and be used to determine whether to have received the network side establishes message；
Second determines submodule, if establishing message for have received the network side, it is determined that can be the called terminal
Establish called speech channel；Otherwise determination cannot establish speech channel for the called terminal.
8. device according to claim 5, which is characterized in that described device further include:
Module is established in speech channel, is the quilt according to the message of establishing if establishing message for have received the network side
Terminal is made to establish called speech channel.
9. a kind of electronic equipment, including memory, processor and it is stored on the memory and can transports on the processor
Capable computer program；It is characterized in that, the processor is realized as described in claim any one of 1-4 when executing described program
Signal processing method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step in the described in any item signal processing methods of claim 1-4 is realized when execution.
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