CN106304044A - A kind of strengthen the call method of safety, device and communication terminal - Google Patents
A kind of strengthen the call method of safety, device and communication terminal Download PDFInfo
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- CN106304044A CN106304044A CN201510280631.8A CN201510280631A CN106304044A CN 106304044 A CN106304044 A CN 106304044A CN 201510280631 A CN201510280631 A CN 201510280631A CN 106304044 A CN106304044 A CN 106304044A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
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- Computer Security & Cryptography (AREA)
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- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
The present invention proposes and a kind of strengthens the call method of safety, device and communication terminal, the method includes: time de-electrifying, session services module is treated the actual telephone number of exhalation and is encrypted and obtains the first encrypted number, is then based on described first encrypted number and carries out de-electrifying broadcast；Session services module is then forwarded to modulation /demodulation module after described first encrypted number deciphering.Conversation number is encrypted by the present invention in application layer, well protects the real connection information of user's communication, it is possible to increase the safety of call, makes up existing operation system of smart phone potential security hole.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of strengthen call the method for safety, device and
Communication terminal.
Background technology
Along with the development of mobile phone industry, the application that mobile phone is installed sharply increases, and the application of some malice can
Call-information is monitored, steals the privacy of user.Existing smart mobile phone uses SOS pair
User profile is protected, and is hidden call-information particular by privacy mode, and utilizes safe behaviour
Make system mask mobile phone and extraneous communication, achieve the protection of communication information substantially, therefore can play
Certain effect, but still there are some hidden danger.Such as: the safety operation system of android4.4 and in the past version
System, in dialing procedure, begins with a process carrying out processing and broadcast of checking numbers, if there being a evil
The meaning software design patterns radio receiver of one high authority, checks numbers and monitors or distort, safety operation
The protective measure of system will be ineffective.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind of strengthens the call method of safety, device and logical
Letter terminal, it is to avoid Malware gets the real connection information of communication counterpart.
The technical solution used in the present invention is, the described method strengthening call safety, including:
Time de-electrifying, session services module is treated the actual telephone number of exhalation and is encrypted and obtains the first encryption numbers
Code, is then based on described first encrypted number and carries out de-electrifying broadcast；
Session services module is then forwarded to modulation /demodulation module after described first encrypted number deciphering.
Further, the actual telephone number that described session services module treats exhalation is encrypted and obtains first
Encrypted number, including:
In session services module, the process of first apoplexy due to endogenous wind contacting described actual telephone number is intended to function to institute
State actual telephone number to be encrypted and obtain the first encrypted number.
Further, described session services module is then forwarded to modulatedemodulate after described first encrypted number deciphering
Mode transfer block, including:
In session services module, the calling of first apoplexy due to endogenous wind contacting described actual telephone number receives connecing of apoplexy due to endogenous wind
Receipts process function and are decrypted described first encrypted number and obtain described actual telephone number, then by described very
Real telephone number is sent to modulation /demodulation module.
Further, described method, also include:
During incoming call, the actual telephone number of incoming call is encrypted and obtains the second encrypted number, so by frame module
After carry out call-in reporting based on described second encrypted number.
Further, the actual telephone number of incoming call is encrypted and obtains the second encryption numbers by described frame module
Code, including:
The class of the actual telephone number of first the contact incoming call actual telephone number to described incoming call in frame module
Code is encrypted and obtains the second encrypted number, creates call connecting object based on described second encrypted number；Or
Person,
The call connecting object constructed fuction of the class of the actual telephone number of first contact incoming call in frame module
When creating call connecting object, the actual telephone number of corresponding described incoming call is encrypted.
Further, in frame module the class of actual telephone number of first contact incoming call to described incoming call
Actual telephone number is encrypted and obtains the second encrypted number, including:
In frame module, the class of the actual telephone number of first contact incoming call judges whether described call occur even
The socket information connecing the actual telephone number that object is sky and incoming call is not sky, if occurring, described call connects
Object is empty and the socket information of the actual telephone number of incoming call is not for empty, then from the actual telephone number of incoming call
The socket information of code extracts the actual telephone number of incoming call and is encrypted.
Further, the process of described encryption includes:
Cryptography algorithm, CRC32 algorithm or Base64 algorithm is used to feature string and to treat
Add confidential information to be encrypted, the information after being encrypted；
The process of described deciphering includes:
Feature based character string, uses Cryptography algorithm, CRC32 algorithm or Base64 algorithm
Information after encryption is decrypted.
Further, the determination process of described feature string, including:
Use MD5 (Message-Digest Algorithm 5, md5-challenge), SHA (Secure Hash
Algorithm, Secure Hash Algorithm) algorithm or HMAC (Hashed Message Authentication
Code, ashed information authentication code) algorithm carries out process and obtains feature string at least one of:
IMSI (International Mobile Subscriber Identification Number, international mobile subscriber identification
Code), IMEI (International Mobile Equipment Identity, mobile device international identity code), with
The key that mechanism builds.
The present invention also provides for a kind of device strengthening call safety, including:
Session services module, for when de-electrifying, treat the actual telephone number of exhalation and is encrypted and obtains the
One encrypted number, is then based on described first encrypted number and carries out de-electrifying broadcast；
It is then forwarded to modulation /demodulation module after described first encrypted number deciphering.
The present invention also provides for a kind of communication terminal, including the above-mentioned device strengthening call safety.
Using technique scheme, the present invention at least has the advantage that
The enhancing call method of safety of the present invention, device and communication terminal, in application layer to call number
Code is encrypted, and well protects the real connection information of user's communication, it is possible to increase call
Safety, make up existing Android operation system potential security hole.
Accompanying drawing explanation
Fig. 1 is the method flow diagram strengthening call safety of first embodiment of the invention；
Fig. 2 is the method flow diagram strengthening call safety of second embodiment of the invention；
Fig. 3 is the complete de-electrifying schematic flow sheet of sixth embodiment of the invention；
Fig. 4 is the complete incoming call schematic flow sheet of sixth embodiment of the invention；
Fig. 5 is the encryption flow schematic diagram of sixth embodiment of the invention；
Fig. 6 is the deciphering schematic flow sheet of sixth embodiment of the invention；
Fig. 7 is that sixth embodiment of the invention carries out the display effect schematic diagram of sectional drawing to incoming call encrypted result.
Detailed description of the invention
By further illustrating the technological means and effect that the present invention taked by reaching predetermined purpose, below tie
Close accompanying drawing and preferred embodiment, after the present invention is described in detail such as.
First embodiment of the invention, a kind of method strengthening call safety, as it is shown in figure 1, include following
Concrete steps:
Step S101, time de-electrifying, session services module is treated the actual telephone number of exhalation and is encrypted and obtains
First encrypted number, is then based on described first encrypted number and carries out de-electrifying broadcast.
Concrete, actual telephone number that described session services module treats exhalation is encrypted and obtains first and add
Close number, including:
In session services module, the process of first apoplexy due to endogenous wind contacting described actual telephone number is intended to function to institute
State actual telephone number to be encrypted and obtain the first encrypted number.If technical solution of the present invention is applied in Android
In operating system, session services module is TeleService.apk, and this TeleService.apk is again by some
Class composition, wherein first contact described actual telephone number class be OutgingBroadcast class.
Owing to, when de-electrifying, actual telephone number to be breathed out is to be firstly received by dial module Dial.apk and lead to
Cross the OutgingBroadcast class that intent information Intent is sent in TeleService.apk,
The process of OutgingBroadcast apoplexy due to endogenous wind is intended to function ProcessIntent and gets from intent information Intent
Actual telephone number to be breathed out, is then encrypted.
Step S102, session services module is then forwarded to modulatedemodulate mode transfer after described first encrypted number deciphering
Block.
Concrete, step S102 includes:
In session services module, the calling of first apoplexy due to endogenous wind contacting described actual telephone number receives connecing of apoplexy due to endogenous wind
Receipts process function and are decrypted described first encrypted number and obtain described actual telephone number, then by described very
Real telephone number is sent to modulation /demodulation module.If technical solution of the present invention being applied in Android operation system,
In session services module, first class contacting described actual telephone number is OutgingBroadcast class, should
OutgingBroadcast class comprises again some inner classes, such as: calling receives class i.e.
OutgoingCallReceiver class, the doReceiver function of OutgoingCallReceiver apoplexy due to endogenous wind then can be used
In being decrypted to described first encrypted number.
Due in an embodiment of the present invention, before being sent to modulation /demodulation module i.e. Modem module, need
Described first encrypted number is decrypted, then be actually sent to Modem module or actual telephone
Number, Modem module can carry out phone exhalation according to actual telephone number to be breathed out, not interfere with communication
The normal talking of terminal.
In the present embodiment, the process of described encryption includes:
Cryptography algorithm, CRC32 algorithm or Base64 algorithm is used to feature string and to treat
Add confidential information to be encrypted, the information after being encrypted；Described information to be encrypted refer to exactly: be previously noted
Actual telephone number to be breathed out.BASE64 algorithm is the coded system for transmitting 8Bit syllabified code
One of, for encryption and decryption.
The process of described deciphering includes:
Feature based character string, uses Cryptography algorithm, CRC32 algorithm or Base64 algorithm
Information after encryption is decrypted.
Further, the determination process of described feature string, including:
MD5, SHA algorithm or hmac algorithm is used at least one of to be carried out process and obtains feature
Character string: IMSI, IMEI, the random key built.
Second embodiment of the invention, a kind of method strengthening call safety, method described in the present embodiment and the
One embodiment is roughly the same, and difference is, as in figure 2 it is shown, the described method of the present embodiment is except including
Outside step S101 of one embodiment～S102, also include following incoming call time process step:
Step S103, during incoming call, the actual telephone number of incoming call is encrypted and obtains second and add by frame module
Close number, is then based on described second encrypted number and carries out call-in reporting.
Concrete, the actual telephone number of incoming call is encrypted and obtains the second encrypted number by described frame module,
Including following two mode:
First kind of way: in frame module, the class of the actual telephone number of first contact incoming call is to described incoming call
Actual telephone number be encrypted and obtain the second encrypted number, create call based on described second encrypted number
Connecting object；
The second way: in frame module, the call of the class of the actual telephone number of first contact incoming call connects
When Object constructors creates call connecting object, the actual telephone number of corresponding described incoming call is added
Close.
Based on above two mode, with further, if technical solution of the present invention is applied in Android operation being
In system, frame module is framework, the actual telephone number of first contact incoming call in framework
Class be CallTracker class,
Owing to when incoming call, the actual telephone number of incoming call is to be firstly received by modulation /demodulation module Modem
And the CallTracker class being sent in framework with the form of socket information.It follows that first
In the mode of kind, CallTracker class is first to be encrypted the actual telephone number of described incoming call, based on encryption
After obtain second encrypted number create call connecting object；
The actual telephone number of described incoming call is encrypted and obtains the second encrypted number by CallTracker class, bag
Include:
CallTracker class judges whether occur that described call connecting object conn is empty and the actual telephone of incoming call
Socket information dc of number is not empty, if occurring, described call connecting object conn is empty and incoming call true
Socket information dc of telephone number is not empty, then from socket information dc of the actual telephone number of incoming call
In extract the actual telephone number of incoming call and be encrypted.
And in the second way, be by the call connecting object constructed fuction of CallTracker apoplexy due to endogenous wind
During Connection function creation call connecting object, the actual telephone number of corresponding described incoming call is added
Close.
In the present embodiment, the process of described encryption includes:
Cryptography algorithm, CRC32 algorithm or Base64 algorithm is used to feature string and to treat
Add confidential information to be encrypted, the information after being encrypted；Described information to be encrypted refer to exactly: be previously noted
Actual telephone number to be breathed out, or, the actual telephone number of incoming call.
The process of described deciphering includes:
Feature based character string, uses Cryptography algorithm, CRC32 algorithm or Base64 algorithm
Information after encryption is decrypted.
Further, the determination process of described feature string, including:
MD5, SHA algorithm or hmac algorithm is used at least one of to be carried out process and obtains feature
Character string: IMSI, IMEI, the random key built.
Third embodiment of the invention, corresponding with first embodiment, the present embodiment is introduced one and is strengthened call safety
The device of property, including consisting of part:
Session services module, for when de-electrifying, treat the actual telephone number of exhalation and is encrypted and obtains the
One encrypted number, is then based on described first encrypted number and carries out de-electrifying broadcast；
It is then forwarded to modulation /demodulation module after described first encrypted number deciphering.
Fourth embodiment of the invention, corresponding with the second embodiment, the present embodiment is introduced one and is strengthened call safety
The device of property, the session services module of the present embodiment is except possessing session services module in the 3rd embodiment
Outside function, also include:
Frame module, for when incoming call, is encrypted the actual telephone number of incoming call and obtains the second encryption
Number, is then based on described second encrypted number and carries out call-in reporting.
Fifth embodiment of the invention, the present embodiment is on the basis of third and fourth embodiment, introduces a kind of whole
End, comprises the device strengthening call safety in third and fourth embodiment.The communication terminal of the present embodiment can
To understand as entity apparatus.
Sixth embodiment of the invention, the present embodiment is on the basis of above-described embodiment, with at GSM (Global
System for Mobile Communication, global system for mobile communications) communication terminal under network carries out
As a example by call, introduce the application example of a present invention in conjunction with accompanying drawing 3～7.
Embodiments provide the mechanism of a kind of safety call, it is possible to the phone that dial-out is gone or called in
Number carries out encryption and decryption protection, processes the broadcast that telephone number is relevant so that even if phone is monitored simultaneously,
Still None-identified goes out real telephone number, thus protects the privacy of user.
The complete de-electrifying flow process of the embodiment of the present invention as it is shown on figure 3, complete incoming call flow process as shown in Figure 4.
The overall architecture of scheme all realizes in TeleService.apk and framework, prevents other application from getting
The broadcast that call is relevant connects and receives by the real telephone number of the other side, thus listens to the true connection of user
It is information.
As it is shown on figure 3, de-electrifying time, dial Dial.apk send real telephone number start
OutgingBroadcast class in TeleService.apk, such is first and touches this real phone number
Code, in prior art, such can send an internal receipt being broadcast to self after to Intent information processing
Device, now will produce a leak, if the radio receiver of malicious application one high authority of registration, will
The most preferentially obtain broadcast message, thus obtain true number.So when such processes Intent information,
After extracting real telephone number, real telephone number is encrypted, replaces true with the number after encryption
Real telephone number, then sends broadcast, accordingly even when third-party application obtains broadcast, does not also know true
Telephone number information.OutgingBroadcast class in the most last TeleService.apk needs encryption
After number be decrypted reduction treatment and be then forwarded to Modem, in order to bottom can be normally carried out dial-up connection.
As shown in Figure 4, during incoming call, bottom Modem reports incoming information to framework layer, existing skill
In art GSMCallTracker apoplexy due to endogenous wind will obtain at first phone link information and carry out a series of notice and
Broadcast.If the third-party application of malice obtains broadcast message with previously, the true of user also will be obtained
Real caller ID.So needing true during GSMCallTracker apoplexy due to endogenous wind is checked numbers and captured
Number is encrypted, and then carries out some notices, and this notice can include broadcast.And in order to prevent malice from answering
With obtaining the number information of display on InCallUI.apk, the number on InCallUI will not be decrypted place
Reason, only shows other information such as Real Name.
It should be noted that encryption point of penetration differs during de-electrifying at incoming call.
Time de-electrifying, in order to prevent broadcasting true number information, can only check numbers before sending broadcast and be encrypted,
OutgingBroadcast class is analyzed it appeared that have only to encrypt in ProcessIntent function and close the most
Reason.When to bottom Sending dialled number information, needing to reduce real telephone number, this process is from TeleService
Cross two levels of framework, if decrypting process is at framework layer, it will make some check the number
Code carries out the function of preliminary treatment judgement and cannot run.So decrypting process needs in advance, analyze through above,
Show that deciphering point of penetration should be arranged in inner classes OutgoingCallReceiver of OutgoingBroadcast class
DoReceiver function in.
During incoming call, in order to prevent from obtaining on third-party application always electric interface incoming information, so carrying out electric process
Do not set decryption step, be encrypted to check numbers before GSMCallTracker class sends incoming call broadcast, have
Two points of penetration can select, and is that GSMCallTracker class judges call connecting object information conn respectively
When not being empty for empty and telephone number really socket information dc, immediately to real telephone number
Real telephone number in socket information dc is encrypted；
Another be build call connecting object time in real telephone number is encrypted.In view of true
Socket information dc of real telephone number will other branches or in the case of be used again, prevent
Unexpected, it is advantageous to the constructed fuction when building call connecting object in carry out number encryption.
The enciphering and deciphering algorithm of embodiment of the present invention design is made up of two parts, and Part I uses md5 encryption
Build MD5 hashed value (i.e. feature string in preceding embodiment)；Part II uses Base64 to add solution
Close algorithm carries out encryption and decryption to original number and MD5 hashed value.Concrete encryption flow and deciphering flow process are the most such as
Shown in Fig. 5 and Fig. 6.
Key in Fig. 5 is the random secret key built, and utilizes the secret key of IMEI, IMSI and structure to generate MD5
Hashed value.Ciphering process use on the basis of MD5 hashed value and original number Base64 algorithm to former number
The real telephone number of the i.e. partner of code is encrypted, and obtains encrypted number；Decrypting process in Fig. 6
The exactly inverse process of encryption, need synchronization during being somebody's turn to do is corresponding IMSI, IMEI and secret key, so
Ensure that when using different communication terminal the encrypted result of telephone number for identical partner not
With；Make use of simultaneously MD5 can not cracking, enhance the safety of encrypted number；Finally make use of
The amphicheirality of Base64, it is achieved that the encryption and decryption of number.
The encryption process removing electric process is of short duration, can only observe with daily record, and the present embodiment is to incoming call encryption knot
Fruit carries out sectional drawing, and its display effect is as shown in Figure 7.
The call method of safety, device and communication terminal is strengthened, in application layer pair described in the embodiment of the present invention
Conversation number is encrypted, and well protects the real connection information of user's communication, it is possible to carry
The safety of high call, makes up existing Android operation system potential security hole.
By the explanation of detailed description of the invention, it should can be to the present invention by reaching the technology that predetermined purpose is taked
Means and effect are able to more deeply and concrete understanding, but appended diagram is only to provide reference and explanation
With, not it is used for the present invention is any limitation as.
Claims (10)
1. the method strengthening call safety, it is characterised in that including:
Time de-electrifying, session services module is treated the actual telephone number of exhalation and is encrypted and obtains the first encryption numbers
Code, is then based on described first encrypted number and carries out de-electrifying broadcast；
Session services module is then forwarded to modulation /demodulation module after described first encrypted number deciphering.
The method strengthening call safety the most according to claim 1, it is characterised in that described call
Service module is treated the actual telephone number of exhalation and is encrypted and obtains the first encrypted number, including:
In session services module, the process of first apoplexy due to endogenous wind contacting described actual telephone number is intended to function to institute
State actual telephone number to be encrypted and obtain the first encrypted number.
The method strengthening call safety the most according to claim 1, it is characterised in that described call
Service module is then forwarded to modulation /demodulation module after described first encrypted number deciphering, including:
In session services module, the calling of first apoplexy due to endogenous wind contacting described actual telephone number receives connecing of apoplexy due to endogenous wind
Receipts process function and are decrypted described first encrypted number and obtain described actual telephone number, then by described very
Real telephone number is sent to modulation /demodulation module.
The method strengthening call safety the most according to claim 1, it is characterised in that described method,
Also include:
During incoming call, the actual telephone number of incoming call is encrypted and obtains the second encrypted number, so by frame module
After carry out call-in reporting based on described second encrypted number.
The method strengthening call safety the most according to claim 4, it is characterised in that described framework
The actual telephone number of incoming call is encrypted and obtains the second encrypted number by module, including:
The class of the actual telephone number of first the contact incoming call actual telephone number to described incoming call in frame module
Code is encrypted and obtains the second encrypted number, creates call connecting object based on described second encrypted number；Or
Person,
The call connecting object constructed fuction of the class of the actual telephone number of first contact incoming call in frame module
When creating call connecting object, the actual telephone number of corresponding described incoming call is encrypted.
The method strengthening call safety the most according to claim 5, it is characterised in that frame module
In the class of actual telephone number of first contact incoming call the actual telephone number of described incoming call is encrypted
To the second encrypted number, including:
In frame module, the class of the actual telephone number of first contact incoming call judges whether described call occur even
The socket information connecing the actual telephone number that object is sky and incoming call is not sky, if occurring, described call connects
Object is empty and the socket information of the actual telephone number of incoming call is not for empty, then from the actual telephone number of incoming call
The socket information of code extracts the actual telephone number of incoming call and is encrypted.
7. according to the method strengthening call safety according to any one of claim 1～6, it is characterised in that
The process of described encryption includes:
Cryptography algorithm, CRC32 algorithm or Base64 algorithm is used to feature string and to treat
Add confidential information to be encrypted, the information after being encrypted；
The process of described deciphering includes:
Feature based character string, uses Cryptography algorithm, CRC32 algorithm or Base64 algorithm
Information after encryption is decrypted.
The method strengthening call safety the most according to claim 7, it is characterised in that described feature
The determination process of character string, including:
Md5-challenge MD5, Secure Hash Algorithm SHA or ashed information authentication code is used to calculate
Method HMAC carries out process at least one of and obtains feature string: international mobile subscriber identity
IMSI, mobile device international identity code IMEI, the random key built.
9. the device strengthening call safety, it is characterised in that including:
Session services module, for when de-electrifying, treat the actual telephone number of exhalation and is encrypted and obtains the
One encrypted number, is then based on described first encrypted number and carries out de-electrifying broadcast；
It is then forwarded to modulation /demodulation module after described first encrypted number deciphering.
10. a communication terminal, it is characterised in that described communication terminal includes the increasing described in claim 9
The device of strong safety of conversing.
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| CN201510280631.8A CN106304044B (en) | 2015-05-28 | 2015-05-28 | Method and device for enhancing conversation security and communication terminal |
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| CN111404929A (en) * | 2020-03-13 | 2020-07-10 | 浙江华坤道威数据科技有限公司 | System and method applied to enterprise information security |
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