CN115938049A - Card expansion system and method applied to intelligent financial transaction terminal - Google Patents
Card expansion system and method applied to intelligent financial transaction terminal Download PDFInfo
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- CN115938049A CN115938049A CN202211480949.7A CN202211480949A CN115938049A CN 115938049 A CN115938049 A CN 115938049A CN 202211480949 A CN202211480949 A CN 202211480949A CN 115938049 A CN115938049 A CN 115938049A
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Abstract
The application provides a card expansion system and a card expansion method applied to an intelligent financial transaction terminal. The system comprises: the general processor is provided with at least 2 interfaces, wherein one interface is used for connecting a first type of card, and the other interface is used for connecting the first type of card or a second type of card; the identification module is used for reading the card configuration information connected with the interface after the system is started so as to identify the card type connected with the interface; and the initialization module is used for executing card type mark initialization operation on the cards connected with the interface according to the identification result of the identification module so as to initialize the card type marks connected with the interface into the first type cards or the second type cards and realize card type expansion and switching between the different types of cards. By the technical scheme, the PSAM card interface can be simply and effectively expanded, and the power consumption of the whole machine and the BOM cost can be reduced.
Description
Technical Field
The application relates to the field of intelligent financial transaction terminals, in particular to a card expansion system and a card expansion method applied to the intelligent financial transaction terminal.
Background
Nowadays, more and more financial transaction terminals such as POS and cash registers are designed and developed based on mobile phone platforms, so that the intellectualization of an operating system is realized. On these intelligent financial transaction terminals, it is often necessary to design a PSAM card to support it. The PSAM card is a security control module of a terminal, is embedded in various financial transaction terminal devices, and provides security authentication of transaction data in an offline state for the PSAM card, so that security protection at an IC card level is realized.
However, the extended PSAM card usually needs to add a dedicated smart card interface chip, and the main CPU reads the PSAM card through the smart card interface chip. Fig. 1 is a prior art card expansion system applied to an intelligent financial transaction terminal. Referring to fig. 1, expanding the PSAM card through the interface 8 such as the serial port of the general processor 1 requires an additional smart card interface chip 9 and additional passive devices (not shown) such as a resistor-capacitor (rc) and the like, which occupy valuable space of the PCB board and increase the overall power consumption and cost of the BOM (Bill of Materials).
Therefore, it is an urgent need to solve the technical problem to provide a simple and effective card expansion system and method applied to an intelligent financial transaction terminal, which can reduce the power consumption of the whole machine and the cost of the BOM.
Disclosure of Invention
The technical problem to be solved by the application is to provide a card expansion system and method applied to an intelligent financial transaction terminal, which can simply and effectively expand a PSAM card interface and reduce the power consumption of the whole machine and the BOM cost.
The application provides a card expansion system for intelligent financial transaction terminal includes: the general processor is provided with at least 2 interfaces, wherein one interface is used for connecting a first type of card, and the other interface is used for connecting the first type of card or a second type of card; the identification module is used for reading the card configuration information connected with the interface after the system is started so as to identify the card type connected with the interface; and the initialization module is used for executing card type mark initialization operation on the cards connected with the interface according to the identification result of the identification module so as to initialize the card type marks connected with the interface into the first type cards or the second type cards and realize card type expansion and switching between the different types of cards.
In some embodiments, the system further comprises a processing module; the processing module is used for processing the related information of the first type of card when the initialization module initializes the card type mark connected with the interface into the first type of card; and when the initialization module initializes the card class mark connected with the interface to a second type card, the related information processing of the second type card is carried out.
In some embodiments, the first type card is a SIM card, and user information and an encryption key of an end user are stored in the SIM card for identifying the end user; the second type card is a PASM card, and the PASM card is used for providing the security authentication of the transaction data in an off-line state for the intelligent financial transaction terminal.
In some embodiments, the system further comprises: a secure processor connected to the general purpose processor, the secure processor comprising: the hardware encryption module is used for generating random numbers and realizing a hardware encryption algorithm; the safe storage module is used for storing a transaction key and a key for verifying the integrity of the system; and the safety monitoring module is used for monitoring environmental parameters of the system and monitoring whether external hardware invasion exists, and when the external hardware invasion is monitored, clearing the transaction key and/or the key for verifying the integrity of the system.
In some embodiments, the system further comprises: and the external memory is connected to the general processor and is used for storing system execution codes and application programs.
In some embodiments, the system further comprises: an external memory coupled to the general purpose processor for performing operations of the system.
The application also provides a card expansion method applied to the intelligent financial transaction terminal, which comprises the following steps: providing at least 2 interfaces by adopting a general processor, wherein one interface is used for connecting a first type card, and the other interface is used for connecting the first type card or a second type card; after the system is started, reading card configuration information connected with the interface to identify the card type connected with the interface; and executing card type mark initialization operation on the cards connected with the interface according to the identified card types so as to initialize the card type marks connected with the interface into first type cards or second type cards and realize card type expansion and switching among different types of cards.
In some embodiments, the method further comprises: when the card type mark connected with the interface is initialized to a first type card, the related information processing of the first type card is carried out; and/or when the card category label connected with the interface is initialized to be a second type card, the related information processing of the second type card is carried out.
In some embodiments, the first type card is a SIM card, in which user information and an encryption key of an end user are stored for identifying the end user; the second type card is a PASM card, and the PASM card is used for providing the security authentication of the transaction data in an off-line state for the intelligent financial transaction terminal.
According to the technical scheme, the PSAM card is expanded without increasing an interface chip of the smart card, precious PCB space is saved, the complexity of design, the power consumption of a system and the cost of BOM are reduced, and the reliability of the system is improved. And card type extension and switching between different types of cards.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the detailed description of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a prior art card expansion system applied to an intelligent financial transaction terminal;
FIG. 2 is a schematic diagram of a card expansion system applied to a smart financial transaction terminal in one embodiment of the present application;
fig. 3 is a flowchart of a card expansion method applied to an intelligent financial transaction terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is to be understood that the embodiments described are only a part of the embodiments of the present application, and not all of the embodiments of the present application. All other embodiments that can be derived by a person skilled in the art from the detailed description of the embodiments given herein without making any creative effort belong to the protection scope of the present application.
In order to solve the problems that in the prior art, an additional smart card interface chip and passive devices such as a resistor-capacitor device attached to the chip occupy the valuable space of a PCB and increase the power consumption of the whole machine and the cost of BOM, the embodiment of the application provides a card expansion system and a method applied to an intelligent financial transaction terminal.
First, a card expansion system applied to an intelligent financial transaction terminal according to an embodiment of the present application will be described.
Fig. 2 is a schematic diagram of a card expansion system applied to an intelligent financial transaction terminal in an embodiment of the present application. Referring to fig. 2, the card expansion system applied to the intelligent financial transaction terminal includes: a general-purpose processor 1, an identification module 2, and an initialization module 3. The general processor 1 has at least 2 interfaces, wherein one interface is used for connecting a first type card, and the other interface is used for connecting the first type card or a second type card. The identification module 2 is used for reading the card configuration information connected with the interface after the system is started so as to identify the card type connected with the interface. The initialization module 3 is configured to perform a card type tag initialization operation on the card connected to the interface according to the identification result of the identification module 2, so as to initialize the card type tag connected to the interface to a first type card or a second type card, thereby implementing card type expansion and switching between different types of cards.
With reference to fig. 2, in this embodiment, the first type card is an SIM card, and user information and an encryption key of the terminal user are stored in the SIM card for identifying the terminal user; the second type card is a PASM card, and the PASM card is used for providing security authentication of the transaction data in an off-line state for the intelligent financial transaction terminal. The general processor 1 comprises a first interface 11 and a second interface 12, wherein the first interface 11 is used for connecting a SIM card, and the second interface 12 is used for connecting a SIM card or a PASM card. The first interface 11 and the second interface 12 are redundant SIM card interfaces of the general processor 1 in the mobile phone platform, and because the SIM card and the PSAM card have the same interface signal and conform to the ISO7816 protocol, the PSAM card can be extended without adding the smart card interface chip 9, thereby saving precious PCB space, reducing the design complexity, the system power consumption and the BOM cost, and improving the system reliability. Further, if the identification module 2 identifies that the card type connected to the interface is an SIM card, the second interface 12 may still be configured with the SIM card, thereby implementing card type extension and switching between different types of cards.
With reference to fig. 2, in the present embodiment, the card expansion system applied to the intelligent financial transaction terminal further includes a processing module 4; the processing module 4 is configured to perform related information processing on a first type card when the initialization module 3 initializes the card type tag connected to the interface to the first type card; and when the initialization module 3 initializes the card class mark connected with the interface to a second type card, processing related information of the second type card.
With continuing reference to fig. 2, in this embodiment, the card expansion system applied to the intelligent financial transaction terminal further includes: a secure processor 5. The secure processor 5 is connected to the general-purpose processor 1, the secure processor 5 comprising: a hardware encryption module 51, a secure storage module 52, and a security monitoring module 53. The hardware encryption module 51 is used for providing random number generation and implementing a hardware encryption algorithm. The secure storage module 52 is configured to store a transaction key and a key for verifying integrity of the system, and specifically, the RAM space of the secure storage module 52 powered by the backup battery is used to store the transaction key and the key for verifying integrity of the system, so as to avoid data loss. The security monitoring module 53 is configured to monitor environmental parameters (e.g., system power, temperature, etc.) of the system, monitor whether there is an external hardware intrusion, and clear the transaction key and/or the key for verifying the integrity of the system when the external hardware intrusion is monitored.
With continuing reference to fig. 2, in this embodiment, the card expansion system applied to the intelligent financial transaction terminal further includes: an external memory 6 (e.g., flash), said external memory 6 being connected to said general-purpose processor 1 for storing system execution code and application programs.
With continuing reference to fig. 2, in this embodiment, the card expansion system applied to the intelligent financial transaction terminal further includes: an external memory 7 (e.g., SDRAM), the external memory 7 being connected to the general purpose processor 1 for performing operations of the system.
According to the technical scheme, redundant SIM cards of the general processor 1 are utilized, the PSAM card is expanded while a smart card interface chip is not added, precious PCB space is saved, the complexity of design, the power consumption of a system and the cost of BOM are reduced, and the reliability of the system is improved. And when the identification module 2 identifies that the card type connected to the interface is the SIM card, the second interface 12 can still configure the SIM card, thereby realizing card type extension and switching between different types of cards.
Based on the same inventive concept, the application also provides a card expansion method applied to the intelligent financial transaction terminal. Fig. 3 is a flowchart of a card expansion method applied to an intelligent financial transaction terminal according to an embodiment of the present application. Referring now to fig. 3, the method includes the steps of: step S301, providing at least 2 interfaces by adopting a general processor, wherein one interface is used for connecting a first type card, and the other interface is used for connecting the first type card or a second type card; step S302, after the system is started, reading card configuration information connected with the interface to identify the card type connected with the interface; and step S303, performing card type mark initialization operation on the card connected with the interface according to the identified card type so as to initialize the card type mark connected with the interface into a first type card or a second type card, thereby realizing card type expansion and switching between different types of cards.
In this embodiment, the card expansion method applied to the intelligent financial transaction terminal further includes: when the card type mark connected with the interface is initialized to a first type card, the related information processing of the first type card is carried out; and/or when the card category label connected with the interface is initialized to a second type card, processing related information of the second type card. The first type card is an SIM card, and user information and an encryption key of a terminal user are stored in the SIM card and are used for identifying the terminal user; the second type card is a PASM card, and the PASM card is used for providing security authentication of the transaction data in an offline state for the intelligent financial transaction terminal. The general processor 1 comprises a first interface 11 and a second interface 12, wherein the first interface 11 is used for connecting a SIM card, and the second interface 12 is used for connecting a SIM card or a PASM card. The first interface 11 and the second interface 12 are redundant SIM card interfaces of the general processor 1 in the mobile phone platform, and since the SIM card and the PSAM card have the same interface signal and comply with the ISO7816 protocol, the PSAM card can be extended without adding the smart card interface chip 9, thereby saving precious PCB space, reducing the complexity of design, the power consumption of the system and the cost of BOM, and improving the reliability of the system. Further, if the identification module 2 identifies that the card type connected to the interface is an SIM card, the second interface 12 may still be configured with the SIM card, thereby implementing card type extension and switching between different types of cards.
In some embodiments, the card extension method applied to the intelligent financial transaction terminal further includes: a security processor 5 is provided to ensure that the intelligent financial transaction terminal is not hacked by external hardware. The secure processor 5 is connected to the general-purpose processor 1, the secure processor 5 comprising: a hardware encryption module 51, a secure storage module 52, and a security monitoring module 53. The hardware encryption module 51 is used for providing random number generation and implementing a hardware encryption algorithm. The secure storage module 52 is used for storing transaction keys and keys for verifying the integrity of the system. The security monitoring module 53 is configured to monitor environmental parameters (e.g., system power, temperature, etc.) of the system, monitor whether there is an external hardware intrusion, and clear the transaction key and/or the key for verifying the integrity of the system when the external hardware intrusion is monitored.
In some embodiments, the card extension method applied to the intelligent financial transaction terminal further includes: an external memory 6, such as Flash, is provided for storing system execution code and applications.
In some embodiments, the card extension method applied to the intelligent financial transaction terminal further includes: an external memory 7 (e.g., SDRAM) is provided for performing the operation of the system.
According to the technical scheme, redundant SIM cards of the general processor 1 are utilized, the PSAM card is expanded while an interface chip of the intelligent card is not increased, precious PCB space is saved, the complexity of design, the power consumption of a system and the cost of BOM are reduced, and the reliability of the system is improved. And when the identification module 2 identifies that the card type connected to the interface is the SIM card, the second interface 12 can still configure the SIM card, thereby realizing card type extension and switching between different types of cards.
It should be noted that, in this document, relational terms such as second and third, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that there is an element defined by the word "further comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a related manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the description of the embodiments of the method is simple because it is substantially similar to the embodiments of the system, and reference may be made to the partial description of the embodiments of the system for relevant points.
The above description is only a preferred embodiment of the present application and is not intended to limit the scope of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (9)
1. A card expansion system applied to an intelligent financial transaction terminal, comprising:
the general processor is provided with at least 2 interfaces, wherein one interface is used for connecting a first type of card, and the other interface is used for connecting the first type of card or a second type of card;
the identification module is used for reading the card configuration information connected with the interface after the system is started so as to identify the card type connected with the interface; and
and the initialization module is used for executing card type mark initialization operation on the cards connected with the interface according to the identification result of the identification module so as to initialize the card type marks connected with the interface into the first type cards or the second type cards and realize card type expansion and switching between the different types of cards.
2. The system of claim 1, further comprising a processing module; the processing module is used for processing the related information of the first type card when the initialization module initializes the card type mark connected with the interface to the first type card; and when the initialization module initializes the card type mark connected with the interface to a second type card, the related information processing of the second type card is carried out.
3. The system of claim 1,
the first type card is an SIM card, and user information and an encryption key of a terminal user are stored in the SIM card and used for identifying the terminal user;
the second type card is a PASM card, and the PASM card is used for providing security authentication of the transaction data in an offline state for the intelligent financial transaction terminal.
4. The system of claim 1, further comprising: a secure processor connected to the general purpose processor, the secure processor comprising:
the hardware encryption module is used for generating random numbers and realizing a hardware encryption algorithm;
the safe storage module is used for storing a transaction key and a key for verifying the integrity of the system;
and the safety monitoring module is used for monitoring environmental parameters of the system and monitoring whether external hardware invasion exists, and when the external hardware invasion is monitored, clearing the transaction key and/or the key for verifying the integrity of the system.
5. The system of claim 1, further comprising: an external memory connected to the general purpose processor for storing system execution code and application programs.
6. The system of claim 1, further comprising: an external memory coupled to the general purpose processor for performing operations of the system.
7. A card expansion method applied to an intelligent financial transaction terminal is characterized by comprising the following steps:
providing at least 2 interfaces by adopting a general processor, wherein one interface is used for connecting a first type card, and the other interface is used for connecting the first type card or a second type card;
after the system is started, reading card configuration information connected with the interface to identify the card type connected with the interface; and
and performing card type mark initialization operation on the card connected with the interface according to the identified card type so as to initialize the card type mark connected with the interface into a first type card or a second type card, thereby realizing card type expansion and switching between different types of cards.
8. The method of claim 7, further comprising:
when the card type mark connected with the interface is initialized to a first type card, processing related information of the first type card; and/or
And when the card type mark connected with the interface is initialized to be a second type card, the related information processing of the second type card is carried out.
9. The method of claim 7, wherein the first type card is a SIM card, and the SIM card stores therein user information of an end user, an encryption key for identifying the end user;
the second type card is a PASM card, and the PASM card is used for providing the security authentication of the transaction data in an off-line state for the intelligent financial transaction terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211480949.7A CN115938049A (en) | 2022-11-24 | 2022-11-24 | Card expansion system and method applied to intelligent financial transaction terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211480949.7A CN115938049A (en) | 2022-11-24 | 2022-11-24 | Card expansion system and method applied to intelligent financial transaction terminal |
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| CN115938049A true CN115938049A (en) | 2023-04-07 |
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| CN202211480949.7A Pending CN115938049A (en) | 2022-11-24 | 2022-11-24 | Card expansion system and method applied to intelligent financial transaction terminal |
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