CN103325183A - IC card intelligent heat meter information security management module - Google Patents
IC card intelligent heat meter information security management module Download PDFInfo
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- CN103325183A CN103325183A CN2013101680154A CN201310168015A CN103325183A CN 103325183 A CN103325183 A CN 103325183A CN 2013101680154 A CN2013101680154 A CN 2013101680154A CN 201310168015 A CN201310168015 A CN 201310168015A CN 103325183 A CN103325183 A CN 103325183A
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Abstract
The invention discloses an IC card intelligent heat meter information security management module, which belongs to an IC card intelligent heat meter management auxiliary device, which includes a processor, a first data interface, a second data interface and a FLASH memorizer, wherein the processor is switched in the first data interface, the second data interface and the FLASH memorizer respectively. The information security management module performs data exchange with a heat energy selling management system through an IC card information exchanging module while identity authentication is performed, so that the communication legality of the information security management module and the heat energy selling management system is guaranteed; level-to-level management in a heat energy enterprise can be realized through different secrete keys, the safety of the secrete keys is higher as the 3DES/AES multi-stage encryption manner is adopted, the secrete keys can be upgraded through a program downloading interface on the information security management module to avoid danger brought by leakage of the secrete keys; the module provided by the invention has a simple structure, guarantees the control independence on heat meters of energy enterprises, and is free from outside restriction.
Description
Technical field
The present invention relates to a kind of IC-card intellectual heat meter management aid, in particular, the present invention relates generally to a kind of IC-card intellectual heat meter information security management module.
Background technology
In recent years, along with the development of IC-card intellectual heat meter correlation technique, brand and the kind of IC-card intellectual heat meter constantly increase, and Thermoenergy Corp. uses and management for convenient, begin to adopt the IC-card intellectual heat meter, and make up the management system of oneself on this basis.Because same Thermoenergy Corp. may adopt the IC-card intellectual heat meter of multiple brand, each manufacturer is grasping separately the management method of IC-card intellectual heat meter, different brands IC-card intellectual heat meter uses different management systems, operating equipment, transmission medium, the management password, mode of operation, cause each Thermoenergy Corp. not have technically the control of IC-card intellectual heat meter, the IC-card intellectual heat meter can break away from the management system of Thermoenergy Corp., information is revised arbitrarily, the use state is controlled, specific certain user or a plurality of user need not be paid just can use heat energy, Thermoenergy Corp. exists IC-card intellectual heat meter risk out of control.
IC-card intellectual heat meter producer designed, designed and exploitation control and management technology separately are with administrating system, each manufacturer is in safety technique, level on the Data Interchange Technology is also uneven, cause portioned product in the security of information management, there is risk on the reliability of message exchange, encrypt, decryption technology is used unreasonable, causing can be by corresponding technological means, obtain the data analysis in the transmission medium, decode cryptographic algorithm and data protocol, thereby write out the program that corresponding cooperation IC-card intellectual heat meter uses, the management system that breaks away from Thermoenergy Corp. is sold arbitrarily heat energy, and Thermoenergy Corp. exists IC-card intellectual heat meter and management system risk simultaneously out of control.Therefore be necessary for the problems referred to above, in the IC-card intellectual heat meter, install a kind of management aid of information security management additional, realize information security management.
Summary of the invention
One of purpose of the present invention is for above-mentioned deficiency, a kind of IC-card intellectual heat meter information security management module is provided, with problems such as the information security management of expecting solution various IC-card intellectual heat meters of the prior art and management system thereof can not be guaranteed, eliminate the risk of information security management in Thermoenergy Corp.'s operation.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of IC-card intellectual heat meter information security management module provided by the present invention, described information security management module comprises processor, the first data-interface, the second data-interface and FLASH storer, described processor accesses respectively the first data-interface, the second data-interface and FLASH storer, wherein:
Described the first data-interface is used for carrying out the IC-card intellectual heat meter communicates by letter with the unique data of IC-card information exchange module, and transmits it to processor when receiving the external data that comes from the IC-card information exchange module;
Described FLASH storer is used for control and the documentor of storage information security management module;
Described the second data-interface is used for carrying out the data communication between processor and the IC-card smart heat-energy meter terminal master controller, and described IC-card smart heat-energy meter terminal master controller is used for carrying out the operation of corresponding table end according to the instruction of processor;
Described processor is used for when receiving the external data that comes from the first data-interface, the heat energy that the subtend IC-card writes external data is sold management system and is carried out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card smart heat-energy meter terminal master controller according to the affairs that comprise in the data.
As preferably, further technical scheme is: described processor is used for when receiving the external data that comes from the first data-interface, the heat energy that writes external data according to external data subtend IC-card is sold management system and is carried out authentication, when authentication result is judged as when legal, then encrypted packets is decrypted and completeness check, on the contrary the original state that then resets;
After data integrity verifying passes through, validity of data is verified, on the contrary the original state that then resets;
After Validation of Data is passed through, the affairs that comprise in the data are carried out pre-service, and from IC-card smart heat-energy meter terminal master controller, obtain corresponding return message by the second data-interface, to return to the IC-card information exchange module by the first data-interface after the described return message encryption, after effectively being confirmed, then the pre-service result is approved and stored relevant operation information, and to IC-card smart heat-energy meter terminal master controller transmit operation instruction; Otherwise then abandon the pre-service result or make caching process.
Further technical scheme is: preset protocols limit condition and a plurality of different cipher key procedures in the described FLASH storer, be used in the information security management module respectively when subsystem that heat energy is sold the different classifications of management system carries out exchanges data, processor is compared according to a plurality of cipher key procedures that preset in the encryption key of external data and the FLASH storer, thereby authentication heat energy is sold the identity of management system, and after encrypted packets deciphering and completeness check pass through, according to the validity of protocols limit condition Verification data under current identity, judge whether the affairs in the data are carried out pre-service.
Further technical scheme is: also comprise eeprom memory in the described information security management module, described eeprom memory also accesses processor, be used for storage of processor to the associative operation information of IC-card smart heat-energy meter terminal master controller, and processor is to the pre-service result of affairs in the external data.
Further technical scheme is: described processor is for carrying out central processing unit or the single-chip microcomputer of cryptographic algorithm.
Further technical scheme is: described the first data-interface is the IC-card interface.
Further technical scheme is: described the second data-interface is at least any one in the middle of USART serial line interface, SPI serial line interface or the I2C serial line interface.
Further technical scheme is: described information security management module also comprises encrypting module, described encrypting module access processor, be used for information security management module and heat energy are sold the multistage encryption and decryption of management system, IC-card smart heat-energy meter terminal master controller exchanges data, and auxiliary processor obtains heat energy and sells the data encryption key of management system and carry out authentication.
Further technical scheme is: described encrypting module is by the Advanced Encryption Standard in the AES(cryptography, the abbreviation of English Advanced Encryption Standard) or the triple data encryption algorithm of 3DES(, mode English Triple Data Encryption Algorithm) is carried out data encrypting and deciphering.
Compared with prior art, one of beneficial effect of the present invention is: the information security management module is sold by IC-card information exchange module and heat energy and is carried out authentication when management system is carried out exchanges data, guaranteed the legitimacy of both communication, IC-card smart heat-energy meter terminal master controller must could communicate with the outside by the information security management module; Utilize different keys can realize the authority setting of Thermoenergy Corp.'s differentiated control, and adopt 3DES/AES multi-level encryption mode, so that key safety is higher, and upgrading key can download cause for gossip by the program on the information security management module time, the risk of avoiding key exposure to bring; By built-in data verifying program, guarantee that the data of transmission are true, accurate, complete.A kind of IC-card intellectual heat meter information security management modular structure provided by the present invention is simple simultaneously, can embed in the IC-card intellectual heat meter of any type and the compatible IC-card intellectual heat meter of bus interface terminal master controller, and seamless access heat supplying managing system, realize the dispersion manufacturing of IC-card intellectual heat meter, unified management, range of application is wide, and has guaranteed the independence of Thermoenergy Corp. in heat energy meter control, is not subjected to extraneous restriction.
Description of drawings
Fig. 1 is for being used for the information security management modular structure block diagram of the explanation embodiment of the invention;
Fig. 2 is for being used for the information security management module application block diagram of the explanation embodiment of the invention;
Fig. 3 is for being used for the management system block diagram of the explanation embodiment of the invention.
Embodiment
The present invention is further elaborated below in conjunction with accompanying drawing.
With reference to shown in Figure 1, one embodiment of the present of invention are a kind of IC-card intellectual heat meter information security management modules, described information security management module comprises processor, the first data-interface, the second data-interface and FLASH storer, described processor accesses respectively the first data-interface, the second data-interface and FLASH storer, wherein:
The effect of above-mentioned the first data-interface is to carry out the IC-card intellectual heat meter to communicate by letter with the unique data of IC-card information exchange module, and transmits it to processor when receiving the external data that comes from the IC-card information exchange module;
The effect of above-mentioned FLASH storer is control and the documentor in the storage information security management module;
With reference to shown in Figure 2, the effect of above-mentioned the second data-interface is the data communication of carrying out between processor and the IC-card smart heat-energy meter terminal master controller, and the effect of IC-card smart heat-energy meter terminal master controller is to carry out the operation of respective table end according to the instruction of processor;
The effect of above-mentioned processor is when receiving the external data that comes from the first data-interface, the heat energy that the subtend IC-card writes external data is sold management system and is carried out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card smart heat-energy meter terminal master controller according to the affairs that comprise in the data.
According to above-mentioned technical scheme as can be known, the technical matters that the present embodiment solves is the information security management module by above-mentioned composition structure, sell at IC-card smart heat-energy meter terminal master controller and heat energy and to carry out data retransmission between the management system, and when transmitting, authenticated and encryption and decryption, thereby cooperate Thermoenergy Corp. that the IC-card intellectual heat meter of terminal is managed, to eliminate the risk of information security management in Thermoenergy Corp.'s operation.
And the Oscillator module shown in Fig. 1 and pin XIN, XOUT provide clock signal to the information security management module; The RAM storer is used for the operating ephemeral data of memory module; VCC and VSS two pins provide working power for the information security management module, and this power supply should be continued power and can not being provided by the pin of IC-card smart heat-energy meter terminal master controller.
Again with reference to shown in Figure 1, be used for the embodiment that the technical solution problem is more preferably in the present invention, provide a kind of above-mentioned processor heat energy to be sold the concrete mode of management system authentication and affairs execution, namely when processor receives the external data that comes from the first data-interface, according to external data heat energy is sold management system and carry out authentication, when authentication result is judged as when legal, then encrypted packets is decrypted and completeness check, on the contrary the original state that then resets;
After data integrity verifying passes through, validity of data is verified, on the contrary the original state that then resets;
After Validation of Data is passed through, the affairs that comprise in the data are carried out pre-service, and from IC-card smart heat-energy meter terminal master controller, obtain corresponding return message by the second data-interface, to return to the IC-card information exchange module by the first data-interface after the described return message encryption, after effectively being confirmed, then the pre-service result is approved and stored relevant operation information, and to IC-card smart heat-energy meter terminal master controller transmit operation instruction; Otherwise then abandon the pre-service result or make caching process, namely do not receive the affirmation result of IC-card information exchange module within the predefined time, for example do not receive the affirmation information of IC-card information exchange module in three minutes, original state then resets; Aforesaid caching process refers to the pre-service object command is kept in, when processor is waken up and receives the affirmation information of IC-card information exchange module again, then in the same way to IC-card smart heat-energy meter terminal master controller transmit operation instruction.
Also comprised in the above-mentioned technical scheme the present embodiment peripheral data from heat energy sell the management system authentication to wherein affairs by the performed whole flow process of processor, by the programming of above-mentioned flow process, further strengthened in the information security management module receiving the security of information and executing.And the above-mentioned processor reset original state of repeatedly mentioning, be the state of resetting processor before carrying out above-mentioned any one operation, for example to carry out the state of authentication before receiving external data be dormant state to processor, when receiving that external data is waken up by dormant state, but the authentication that heat energy is sold management system is judged as when illegal, processor then recovers dormant state, do not carry out any operation, the situation of processor reset also substantially as hereinbefore in other step, when authentication failed, processor can be stored operation note.The above-mentioned heat energy of mentioning is sold management system and be can be in actual applications the terminal heat energy meter total management system that Thermoenergy Corp. is set up simultaneously.
And it is same, in another embodiment of the present invention, for realizing the information security management module being managed by different rights, need in above-mentioned FLASH storer, to preset protocols limit condition and a plurality of different cipher key procedures, it act as in the information security management module respectively when subsystem that heat energy is sold different classifications in the management system carries out exchanges data, processor is compared according to a plurality of cipher key procedures that preset in the encryption key of external data and the FLASH storer, thereby authentication heat energy is sold the identity of management system, and after encrypted packets deciphering and completeness check pass through, according to the validity of protocols limit condition Verification data under current identity, judge whether the affairs in the data are carried out pre-service.
According to another embodiment of the present invention, mention as above-mentioned, buffer memory for ease of processor pre-service result, in the information security management module, also relatively independent eeprom memory can be set, and eeprom memory also accessed processor, be used for storage of processor to the associative operation information of IC-card smart heat-energy meter terminal master controller, processor is to the pre-service result of affairs in the external data, and the failure record of processor checking, and in the FLASH storer, also be provided with other program that to be utilized by processor, after in a single day be processor be stored in the eeprom memory to the associative operation information of IC-card smart heat-energy meter terminal master controller, with unsuppressible-suppression and modification, in order to make the running status of information security management module stay complete record.
Again with reference to shown in Figure 2, in the practical application of the IC-card intellectual heat meter information security management module in above-described embodiment, between access IC-card smart heat-energy meter terminal master controller and the various IC-card information exchange module.The IC-card intellectual heat meter itself contains the several functions module, such as the flow metering module, memory module, display module, the flow valve module, the surplus reminding module, the medium temperature measurement module, these modules are by being connected with IC-card smart heat-energy meter terminal master controller, finish the correlation function of IC-card intellectual heat meter, such as the flow metering module heat energy that the user uses is measured, the demonstration that display module will advance with heat and surplus heat and relevant information, the data message that memory module stores is relevant, the flow valve module is responsible for the switch valve operation, and the medium temperature measurement module is responsible for measuring the temperature value of input and output medium.。
All exchanges data that IC-card intellectual heat meter and external heat are sold management system all must could realize through the information security management module, guarantee that with this IC-card intellectual heat meter is in controlled circumstances all the time, ensure the security of data transmission.
And according to aforesaid principle, this IC-card intellectual heat meter information security management module can integratedly be applied in present IC-card intelligent gas meter, IC-card intelligent electric meter, the IC-card intellectual water meter; And in addition, the improvement application of going back adaptability carries out the measuring apparatus with IC-card of the transmission of data in other by electronic information.
The processor that above-described embodiment is mentioned is the core of information security management module, be used for carrying out corresponding program and data encryption, in another embodiment of the present invention, above-mentioned processor is for directly adopting central processing unit or the single-chip microcomputer that can carry out cryptographic algorithm in the prior art, such as EFM32 etc.
Based on data communication mode required in above-described embodiment, the inventor is with reference to prior art, and what be used in above-described embodiment carrying out that unique the first data-interface of communicating by letter adopts with the IC-card information exchange module is the IC-card interface.
And it is corresponding, the second data-interface that processor and IC-card smart heat-energy meter terminal master controller communicate in above-described embodiment preferably is complementary with conventional master controller, serial line interfaces such as USART interface, SPI interface or I2C interface is to increase the compatibility of information security management module integration on the IC-card intellectual heat meter.
Again with reference to shown in Figure 1, security for data encryption and deciphering in the administration module that further ensures information security, be preferably in its inside independently encrypting module is set, and with this encrypting module access processor independently, be used for information security management module and heat energy are sold management system, the multistage encryption and decryption of information security management module and IC-card smart heat-energy meter terminal master controller exchanges data, and auxiliary processor obtains heat energy and sells the data encryption key of management system and carry out authentication, and with reference to the higher cipher mode of security in the prior art, the preferred Advanced Encryption Standard that adopts in the AES(cryptography, the abbreviation of English Advanced Encryption Standard) or the triple data encryption algorithm of 3DES(, English Triple Data Encryption Algorithm) data of coming and going in the information security management module are carried out encryption and decryption.
With reference to shown in Figure 3, after the integrated above-mentioned information security management module of IC-card intellectual heat meter that a plurality of different vendors produce, outside all communication datas of intellectual heat meter are all by transmitting after the information security management module encryption and decryption, and the internal processes of information security management module is unique, therefore heat energy is sold management system and the information security management module can be considered as terminal, in order to manage the IC-card intellectual heat meter, namely sell the compatible various brands of management system with a heat energy, the IC-card intellectual heat meter of type is managed concentratedly, effectively reduces Thermoenergy Corp. to different brands in the zone, the difficulty of type heat energy meter integration management.
Except above-mentioned, also need to prove " embodiment ", " another embodiment " that speak of in this manual, " embodiment " etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included among at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in instructions.Furthermore, when describing a specific features, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and embodiment will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. IC-card intellectual heat meter information security management module, it is characterized in that: described information security management module comprises processor, the first data-interface, the second data-interface and FLASH storer, described processor accesses respectively the first data-interface, the second data-interface and FLASH storer, wherein:
Described the first data-interface is used for carrying out the IC-card intellectual heat meter communicates by letter with the unique data of IC-card information exchange module, and transmits it to processor when receiving the external data that comes from the IC-card information exchange module;
Described FLASH storer is used for control and the documentor of storage information security management module;
Described the second data-interface is used for carrying out the data communication between processor and the IC-card smart heat-energy meter terminal master controller, and described IC-card smart heat-energy meter terminal master controller is used for carrying out the operation of corresponding table end according to the instruction of processor;
Described processor is used for when receiving the external data that comes from the first data-interface, the heat energy that the subtend IC-card writes external data is sold management system and is carried out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card smart heat-energy meter terminal master controller according to the affairs that comprise in the data.
2. IC-card intellectual heat meter information security management module according to claim 1, it is characterized in that: described processor is used for when receiving the external data that comes from the first data-interface, the heat energy that writes external data according to external data subtend IC-card is sold management system and is carried out authentication, when authentication result is judged as when legal, then encrypted packets is decrypted and completeness check, on the contrary the original state that then resets;
After data integrity verifying passes through, validity of data is verified, on the contrary the original state that then resets;
After Validation of Data is passed through, the affairs that comprise in the data are carried out pre-service, and from IC-card smart heat-energy meter terminal master controller, obtain corresponding return message by the second data-interface, to return to the IC-card information exchange module by the first data-interface after the described return message encryption, after effectively being confirmed, then the pre-service result is approved and stored relevant operation information, and to IC-card smart heat-energy meter terminal master controller transmit operation instruction; Otherwise then abandon the pre-service result or make caching process.
3. IC-card intellectual heat meter information security management module according to claim 1 and 2, it is characterized in that: preset protocols limit condition and a plurality of different cipher key procedures in the described FLASH storer, be used in the information security management module respectively when subsystem that heat energy is sold the different classifications of management system carries out exchanges data, processor is compared according to a plurality of cipher key procedures that preset in the encryption key of external data and the FLASH storer, thereby authentication heat energy is sold the identity of management system, and after encrypted packets deciphering and completeness check pass through, according to the validity of protocols limit condition Verification data under current identity, judge whether the affairs in the data are carried out pre-service.
4. IC-card intellectual heat meter information security management module according to claim 1 and 2, it is characterized in that: also comprise eeprom memory in the described information security management module, described eeprom memory also accesses processor, be used for storage of processor to the associative operation information of IC-card smart heat-energy meter terminal master controller, and processor is to the pre-service result of affairs in the external data.
5. IC-card intellectual heat meter information security management module according to claim 1 and 2 is characterized in that: described processor is for carrying out central processing unit or the single-chip microcomputer of cryptographic algorithm.
6. IC-card intellectual heat meter information security management module according to claim 1 and 2, it is characterized in that: described the first data-interface is the IC-card interface.
7. IC-card intellectual heat meter information security management module according to claim 1 and 2 is characterized in that: described the second data-interface is at least any one in the middle of USART serial line interface, SPI serial line interface or the I2C serial line interface.
8. IC-card intellectual heat meter information security management module according to claim 1 and 2, it is characterized in that: described information security management module also comprises encrypting module, described encrypting module access processor, be used for information security management module and heat energy are sold the multistage encryption and decryption of management system, IC-card smart heat-energy meter terminal master controller exchanges data, and auxiliary processor obtains heat energy and sells the data encryption key of management system and carry out authentication.
9. IC-card intellectual heat meter information security management module according to claim 8, it is characterized in that: described encrypting module carries out data encrypting and deciphering by the mode of AES or 3DES.
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Application publication date: 20130925 |