CN103152724A - Method and system for locking SIM (subscriber identity module) card by utilizing hardware - Google Patents
Method and system for locking SIM (subscriber identity module) card by utilizing hardware Download PDFInfo
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- CN103152724A CN103152724A CN201310077911XA CN201310077911A CN103152724A CN 103152724 A CN103152724 A CN 103152724A CN 201310077911X A CN201310077911X A CN 201310077911XA CN 201310077911 A CN201310077911 A CN 201310077911A CN 103152724 A CN103152724 A CN 103152724A
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Abstract
The invention discloses a method and a system for locking an SIM (subscriber identity module) card by utilizing hardware. The method comprises the following steps that when equipment starts for the first time, an identification ID of an NAND memory and a country code and a network code of a PLMN (public land mobile network) corresponding to a preset SIM card are read, a safe key is figured out through the operation of the identification ID, the country code and the network code, and the safe key is stored; when the equipment leaves the factory and starts normally after the SIM card is inserted into the equipment, a new key is figured out through the operation of the country code and the network code of the PLMN corresponding to the current SIM card, and the identification ID; the new key is compared with the safe key, if the new key is consistent with the safe key, the equipment is used normally; and if not, the network function is disabled. According to the method and the system for locking the SIM card by utilizing hardware, on the basis of not increasing a chip, the identification ID of the NAND memory of the current system is matched with the SIM card in a software mode, so that the safety on locking the SIM card with hardware is realized. The problem that the traditional software-only SIM card locking is not high in safety, and the cost is increased as a hardware chip is arranged is avoided. The requirements of network operators on locking SIM cards are well met.
Description
Technical field
The present invention relates to field of mobile terminals, in particular a kind of method and system of hardware lock SIM card.
Background technology
Nowadays when the mobile radio communication devices such as exploitation data in mobile phone card or 3G router, Virtual network operator all can have the requirement of lock SIM card (namely lock network network), the fail safe of common pure software SIM card locking is not high, and in technology, some manufacturers have begun to carry out hardware lock to improve fail safe by adding new chip now.But can increase extra hardware cost like this, and it is unsuccessful pintle hook lock sometimes also can to occur, and the not high problem of fail safe occurs.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, defects for prior art, a kind of method and system of utilizing the nand memory unique ID number to realize the hardware lock SIM card are provided, it need not on product adding hardware just can realize the hardware lock SIM card, and locking security is high, provides users with the convenient.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of method of hardware lock SIM card wherein, comprises step:
A, when equipment is started shooting for the first time, read the unique ID on nand memory, and with the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do hybrid operation with described unique ID and draw one group of safe key and store on nand memory;
B, when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, read national code and network code in the Public Land Mobile Nerwork of current SIM card storage, with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key;
C, described new key and the safe key stored are compared, judge whether consistent, if judgement unanimously control appliance normally use; If inconsistent forbidden networks function.
The method of described hardware lock SIM card, wherein, the national code in Public Land Mobile Nerwork corresponding to the default SIM card of the use in described steps A and network code, do hybrid operation with described unique ID and draw one group of safe key and comprise:
With the combination of the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do XOR with described unique ID, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described safe key.
The method of described hardware lock SIM card, wherein, in described step B with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key and comprise:
With the combination of the national code in Public Land Mobile Nerwork corresponding to current SIM card and network code, do XOR with described unique ID, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key.
The method of described hardware lock SIM card, wherein, the default SIM card in described steps A comprises the SIM card of China Mobile, the SIM card of CHINAUNICOM or the SIM card of China Telecom.
The method of described hardware lock SIM card, wherein, described steps A specifically comprises: the national code in the Public Land Mobile Nerwork of SIM card is 460, network code is 01, when the unique ID on nand memory is 48A659B8, do XOR with the combination 46001 of national code and network code with 48A659B8, then operation values is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws 16 byte longs is described safe key.
The method of described hardware lock SIM card, wherein, the forbidden networks function in described step C is the forbidding radio function.
A kind of system of hardware lock SIM card wherein, comprising:
The first computing module, be used for when equipment is started shooting for the first time, read the unique ID on nand memory, and with the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do hybrid operation with described unique ID and draw one group of safe key and store on nand memory;
The second computing module, when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, read national code and network code in the Public Land Mobile Nerwork of current SIM card storage, with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key;
Judgement and control module are used for described new key and the safe key of having stored are compared, judge whether consistent, if judgement unanimously control appliance normally use; If inconsistent forbidden networks function.
The system of described hardware lock SIM card, wherein, described the first computing module comprises:
The first reading unit is used for reading the unique ID on nand memory when equipment is started shooting for the first time
The first computing unit, be used for to control combination with the national code of Public Land Mobile Nerwork corresponding to default SIM card and network code, do XOR with described unique ID, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described safe key.
The system of described hardware lock SIM card, wherein, described the second computing module comprises:
The second reading unit is used for when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, reads national code and network code in the Public Land Mobile Nerwork that current SIM card stores;
The second computing unit, be used for to control combination with the national code of Public Land Mobile Nerwork corresponding to current SIM card and network code, and described unique ID do XOR, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key.
The system of described hardware lock SIM card, wherein, described default SIM card comprises the SIM card of China Mobile, the SIM card of CHINAUNICOM or the SIM card of China Telecom, described forbidden networks function is the forbidding radio function.
Beneficial effect: the method and system that the invention provides a kind of hardware lock SIM card, it is to utilize the nand memory unique ID number to realize the method and system of hardware lock SIM card, the present invention can increase on the basis of hardware chip with unique the signs ID on the nand memory of software mode collocation current system, realizes the fail safe that hardware SIM locks.Avoid traditional pure software SIM card locking security not high, and increased the problem of cost by hardware chip is set.Satisfied well net operation business's relevant SIM card locking requirement.
Description of drawings
Fig. 1 is the preferred embodiment flow chart of the method for hardware lock SIM card of the present invention.
Fig. 2 is the flow chart of concrete Application Example of the method for hardware lock SIM card of the present invention.
Fig. 3 is the functional schematic block diagram of the embodiment of the present invention.
Fig. 4 is the structural representation of the first computing module of system of the hardware lock SIM card of the embodiment of the present invention.
Fig. 5 is the structural representation of the second computing module of system of the hardware lock SIM card of the embodiment of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The method of hardware lock SIM card of the present invention can be applied on the mobile radio communication device of the use SIM card such as mobile phone, data card, 3G router, utilize existing hardware condition, on movement-based equipment, the sign ID of present mainstream configuration nand memory is encrypted in conjunction with the network information corresponding to SIM card and reaches the purpose that the mobile device that comprises SIM card sets only network, satisfies the requirement of Virtual network operator lock SIM card.
Fig. 1 is the preferred embodiment flow chart of the method for hardware lock SIM card of the present invention, and the method for described hardware lock SIM card comprises the following steps:
S110, when equipment is started shooting for the first time, read the unique ID on nand memory, and with the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do hybrid operation with described unique ID and draw one group of safe key and store on nand memory.
Wherein, default SIM card comprises the SIM card of China Mobile, the SIM card of CHINAUNICOM or the SIM card of China Telecom according to China's Mainland heterogeneous networks operator, specifically can preset according to the demand of businessman.
During concrete enforcement, described equipment is with the combination of the national code in Public Land Mobile Nerwork (PLMN) corresponding to default SIM card and network code, do XOR with the unique ID on described nand memory, again the operation values of doing XOR being done the key that Message Digest Algorithm 5 (MD5) cryptographic algorithm draws predetermined length is described safe key, and with this secure key storage to nand memory.
For example, national code in the Public Land Mobile Nerwork of default SIM card is 460, network code is 01, when the unique ID on nand memory is 48A659B8, do XOR with national code and network code combination 46001 with 48A659B8, again operation values being done the key that the Message Digest Algorithm 5 cryptographic algorithm draws 16 byte longs is described safe key, with this key storage on the mobile device nand memory.
S120, when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, read national code and network code in the Public Land Mobile Nerwork of current SIM card storage, with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key;
During concrete enforcement, after starting shooting after inserting new SIM card after described mobile device dispatches from the factory, mobile device is with the combination of the national code in Public Land Mobile Nerwork corresponding to current SIM card and network code, do XOR with the unique ID on described nand memory, again the operation values of doing XOR being done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key, identical with the dispatch from the factory computational methods of the default SIM card of front use of equipment when specifically implementing.
S130, described new key and the safe key stored are compared, judge whether consistent, if judgement unanimously control appliance normally use; If inconsistent forbidden networks function.Preferably forbid its radio function.So just played the purpose of the SIM card of Wireless Telecom Equipment locking Virtual network operator, because the scheme of lock SIM card of the present invention is to rely on device hardware information to complete, therefore the simple update routine that leans on can not be distorted the present invention program, and method therefore of the present invention has more fail safe than the method by the program locking SIM card.
As shown in Figure 2 be the flow chart of concrete Application Example of the method for hardware lock SIM card of the present invention, specifically comprise the following steps:
At first execution in step S201, equipment start shooting and initialization apparatus and SIM card.
Step S202, device program judge whether it is to start shooting for the first time, if start for the first time, execution in step S203 is if not start, execution in step S206 for the first time.
During execution in step S203, the unique identification id information in fetch equipment on nand memory, that reads simultaneously also has national code and network code in Public Land Mobile Nerwork corresponding to default SIM card.
Step S204, the unique identification id information on the nand memory that reads and described national code and network code are done XOR, again the operation values of doing XOR is done the key that Message Digest Algorithm 5 (MD5) cryptographic algorithm draws predetermined length, be safe key with this cipher key setting, be and calculate PLMN locking key, then change step S205 over to.Certainly when computation key, can also adopt other hybrid algorithm, the present invention is not limited the cryptographic algorithm of concrete use.
Step S205, storage locking key spoon to the nand memory of equipment, certainly, also can be stored in this secure key storage in the nonvolatile memory of other type in equipment.
Step S206, when equipment judgement is not when starting shooting for the first time, read the key of having stored.When equipment inserted SIM card and normal boot-strap (the equipment judgement is not to start shooting for the first time) after dispatching from the factory, equipment can be carried out the order of reading the key of having stored, and this moment, equipment can be followed execution in step S207.
S207, judge whether to exist the safe key of having stored, if find not exist (perhaps reading failure) through search, execution in step S212, forbidding radio function.
Equipment inserts SIM card and reads less than depositing key after dispatching from the factory, illustrate that this equipment does not carry out the setting of safe key before dispatching from the factory, and so such equipment does not meet the requirement of Virtual network operator, so equipment is forbidden radio function automatically.
If find storage security key execution in step S208, S209, read national code and network code in Public Land Mobile Nerwork (PLMN) corresponding to unique ID on nand memory and current SIM card, and then execution in step S210.
Step S210, calculate new key, namely with the combination of the national code in PLMN corresponding to current SIM card and network code, do XOR with the unique ID on described nand memory, again the operation values of doing XOR being done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key, then changes step S211 over to.
Step S211, described new key and the safe key stored are compared, judge whether unanimously, if judgement unanimously execution in step S213, control appliance normally uses, and enables its radio function; If inconsistent execution in step S212 is forbidden its radio function.Played the purpose of the SIM card of Wireless Telecom Equipment locking Virtual network operator.
Therefore, the method of the described hardware lock SIM card of the embodiment of the present invention, be applied on the mobile radio communication device of the use SIM card such as mobile phone, data card, 3G router, can make mobile phone, data card, 3G router etc. increase the function of hardware lock SIM card.It need not on product adding hardware just can realize the hardware lock SIM card, and locking security is high, provides users with the convenient.
Based on above-described embodiment, the present invention also provides a kind of system of hardware lock SIM card, and as shown in Figure 3, the system of hardware lock SIM card of the present invention comprises:
The first computing module 110, be used for when equipment is started shooting for the first time, read the unique ID on nand memory, and with the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do hybrid operation with described unique ID and draw one group of safe key and store on nand memory, specifically as shown in above-mentioned embodiment step S110.
The second computing module 120, when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, read national code and network code in the Public Land Mobile Nerwork of current SIM card storage, with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key, specifically as shown in above-mentioned embodiment step S120.
Judgement with control module 130, be used for described new key and the safe key of having stored are compared, judge whether consistent, if judgement unanimously control appliance normally use; If inconsistent forbidden networks function is specifically as shown in above-mentioned embodiment step S130.
Embodiment further, as shown in Figure 4, the first computing module 110 specifically comprises:
The first reading unit 111 is used for reading the unique ID on nand memory, specifically as mentioned above when equipment is started shooting for the first time.
The first computing unit 112, be used for to control combination with the national code of Public Land Mobile Nerwork corresponding to default SIM card and network code, do XOR with described unique ID, again the operation values of doing XOR being done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described safe key, specifically as mentioned above.
Embodiment further, as shown in Figure 5, described the second computing module 120 comprises:
The second reading unit 121 is used for when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, reads national code and network code in the Public Land Mobile Nerwork that current SIM card stores, specifically as mentioned above.
The second computing unit 122, be used for to control combination with the national code of Public Land Mobile Nerwork corresponding to current SIM card and network code, and described unique ID do XOR, again the operation values of doing XOR being done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key, specifically as mentioned above.
in sum, the invention provides a kind of method and system of hardware lock SIM card, it is to utilize the nand memory unique ID number to realize the method and system of hardware lock SIM card, the method of the described hardware lock SIM card of the embodiment of the present invention, be applied to mobile phone, data card, 3G routers etc. use on the mobile radio communication device of SIM card, can make mobile phone, data card, 3G router etc. has increased the function of hardware lock SIM card, the present invention can increase on the basis of hardware chip with the unique sign ID on the nand memory of software mode collocation current system, realize the fail safe of hardware SIM locking.Avoid traditional pure software SIM card locking security not high, and increased the problem of cost by hardware chip is set.Satisfied well net operation business's relevant SIM card locking requirement.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or conversion, and for example, all these improve and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. the method for a hardware lock SIM card, is characterized in that, comprises step:
A, when equipment is started shooting for the first time, read the unique ID on nand memory, and with the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do hybrid operation with described unique ID and draw one group of safe key and store on nand memory;
B, when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, read national code and network code in the Public Land Mobile Nerwork of current SIM card storage, with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key;
C, described new key and the safe key stored are compared, judge whether consistent, if judgement unanimously control appliance normally use; If inconsistent forbidden networks function.
2. the method for hardware lock SIM card according to claim 1, it is characterized in that, the national code in Public Land Mobile Nerwork corresponding to the default SIM card of the use in described steps A and network code, do hybrid operation with described unique ID and draw one group of safe key and comprise:
With the combination of the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do XOR with described unique ID, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described safe key.
3. the method for hardware lock SIM card according to claim 1, is characterized in that, in described step B with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key and comprise:
With the combination of the national code in Public Land Mobile Nerwork corresponding to current SIM card and network code, do XOR with described unique ID, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key.
4. the method for hardware lock SIM card according to claim 1, is characterized in that, the default SIM card in described steps A comprises the SIM card of China Mobile, the SIM card of CHINAUNICOM or the SIM card of China Telecom.
5. the method for hardware lock SIM card according to claim 1, it is characterized in that, described steps A specifically comprises: the national code in the Public Land Mobile Nerwork of SIM card is 460, network code is 01, when the unique ID on nand memory is 48A659B8, do XOR with the combination 46001 of national code and network code with 48A659B8, then operation values is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws 16 byte longs is described safe key.
6. the method for hardware lock SIM card according to claim 1, is characterized in that, the forbidden networks function in described step C is the forbidding radio function.
7. the system of a hardware lock SIM card, is characterized in that, comprising:
The first computing module, be used for when equipment is started shooting for the first time, read the unique ID on nand memory, and with the national code in Public Land Mobile Nerwork corresponding to default SIM card and network code, do hybrid operation with described unique ID and draw one group of safe key and store on nand memory;
The second computing module, when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, read national code and network code in the Public Land Mobile Nerwork of current SIM card storage, with the national code in the Public Land Mobile Nerwork of current SIM card storage and network code, do hybrid operation with described unique ID and draw one group of new key;
Judgement and control module are used for described new key and the safe key of having stored are compared, judge whether consistent, if judgement unanimously control appliance normally use; If inconsistent forbidden networks function.
8. the system of hardware lock SIM card according to claim 7, is characterized in that, described the first computing module comprises:
The first reading unit is used for reading the unique ID on nand memory when equipment is started shooting for the first time
The first computing unit, be used for to control combination with the national code of Public Land Mobile Nerwork corresponding to default SIM card and network code, do XOR with described unique ID, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described safe key.
9. the system of hardware lock SIM card according to claim 7, is characterized in that, described the second computing module comprises:
The second reading unit is used for when equipment dispatches from the factory rear insertion SIM card and normal boot-strap, reads national code and network code in the Public Land Mobile Nerwork that current SIM card stores;
The second computing unit, be used for to control combination with the national code of Public Land Mobile Nerwork corresponding to current SIM card and network code, and described unique ID do XOR, then the operation values of doing XOR is done the key that the Message Digest Algorithm 5 cryptographic algorithm draws predetermined length is described new key.
10. the system of hardware lock SIM card according to claim 7, is characterized in that, described default SIM card comprises the SIM card of China Mobile, the SIM card of CHINAUNICOM or the SIM card of China Telecom, and described forbidden networks function is the forbidding radio function.
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| CN201310077911.XA CN103152724B (en) | 2013-03-12 | 2013-03-12 | A kind of method and system of hardware lock SIM |
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| CN201310077911.XA CN103152724B (en) | 2013-03-12 | 2013-03-12 | A kind of method and system of hardware lock SIM |
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| CN103152724B (en) | 2016-08-03 |
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