1 Overview
The IC card (Integrated Circuit Card) is to embed a microelectronic chip in a card basis that matches the ISO 7816 standard, making a card form. Non-contact IC cards are also known as RF cards. The IC card is another new type of information that occurs after the adjustment card. The IC card refers to an integrated circuit card. Generally, a bus card is an IC card. Generally, the common IC card communicates with the IC card reader using RF technology.
Combi SIM (also known as the Dual Interface Dual Interface) card scheme refers to an increase in contact with the COMBI SIM card by replacing the interior SIM, reserves the SIM card functionality of the original contact interface. The Combi SIM card scheme adds a non-contact IC card to the mobile phone, but does not implement reader and duplex communication.
NFC is Near Field Communication abbreviation, i.e., close-up wireless communication technology. NFC developed by Philips and Sony is a non-contact identification and interconnect technology, which can be processed at close range of wireless communication between mobile devices, consumer electronics, PCs, and intelligent control tools. NFC provides a simple, touch-style solution that allows consumers to exchange information, access content and services simple and intuitive.
Although the above two programs can be technically feasible, for a machine (card), how to streamline the relationship between mobile equipment manufacturers, mobile service operators and application service operators, in this cross-industry In the new application integration, there is a need to balance, and the progressive solutions used by the parties are needed. The SMAP solution proposed in this paper can be applied to mobile payment, product anti-counterfeiting, tracking supervision, digital signature, identity, and information acquisition, etc., is a balanced evolution of mobile terminals and RFID.
2. System structure of the SMAP platform and its application
2.1. Architecture of the SMAP platform
The SMAP platform constructs on the basis of existing non-contact IC card applications and mobile communication applications, further integrates various application environment and security systems, forming smaller, safer, lowest prices and more convenient high-frequency The structure block diagram of the RFID application environment, the SMAP platform is as follows:
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In the architecture of the SMAP platform, the SMAP module (chip), the security system, and the middleware product constitute its content, which defines the SMAP module (chip) to have a security system, and can be imported, and the external part is provided. High frequency RFID application products.
2.2. Architecture of the SMAP platform
As mentioned earlier, the SMAP platform is a solution combined with the mobile terminal and the RFID application, and its basic architecture is a mobile communication terminal + SMAP module + RFID, as shown below:
The SMAP module is integrated with the mobile communication terminal through the interface circuit, and the RFID is also integrated on the mobile terminal, wherein the RFID can be a single column independent portion or integrated with the SMAP module. A single column of independent RFID can accept the RF operation of the SMAP module, which is the purpose of making it well. As mentioned earlier, a cartoon technology with non-contact IC card has been widely used in my country, and the typical and mature application industry such as bus card. Campus card, etc., swipe spending as a small consumption in these industries Received and has formed a factual interest relationship. On the other hand, under the current system of my country, in addition to banks and their related units, other units must issue a large system of disorders with gold cards.
2.3. Development route for the SMAP module
In the architecture of the above application, it is a SMAP module. In the current state, the SMAP module is a multi-chip module of the built-in security feature and application flow. The structure of the module is shown below:
Among them, the SMAP module consists of 3 chips and several discrete components. The chip is the master MCU, including the IO interface and power management control interface; Reader is a universal RFID reader, supports ISO14443 Type A, ISO14443 Type A, Type B, 13.56MHz Standards and ISO15693 products; RFID is a separate electronic label module, which can separately encapsulate antenna, communicate with Reader through RF coupling.
RFID discrete SMAP scheme antenna shared SMAP scheme single-chip SMAP scheme
The solution is the SMAP module scheme using independent RFID. The advantage of this program is that the independent RFID can introduce an existing non-contact application operator, the issuance and application model remain constant, support non-contact power-down application mode. The solution is suitable for the pilot period of the new application initial concept; the second solution is integrated with the SMAP module, sharing a pair of antennas, the program two and the program, the advantage is to reduce the independent RFID tag size Handheld mobile terminal's design impact, but the cooperation between operators and mobile operators and mobile phone manufacturers, the program is suitable for a multi-purpose promotion period; the third program truly interacts the SMAP module set into one Single-chip, support ISO18092 standards, and associate SMAP applications with SIM, which is the real large-scale promotion of promotion according to the market feedback after the first two programs.
3. Safety system
Safety is essentially important during the application of SMAP. In particular, mobile payment applications, according to PBOC2.0 requirements, in the payment process, the online or offline transaction should be implemented according to different trading types.
In different applications in SMAP, IC cards (RFID) have two different products: a general logical encryption card or CPU card. In general, for the CPU card, the terminal only passes data between the user card and the background or PSAM card, and does not need to obtain the key to the user card. The key is stored in the background or PSAM card, and during the transaction process calculates the key card's key, and further calculates the relevant transaction data output or verifies the input, the system's security system is not related to the terminal. .
SMAP application security system supports three modes:
Mode: Background Key Support System
In this way, all keys are placed on the background server of the application service provider, providing real-time key services from the background server forward application, and the basic process is shown below:
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At each transaction, the terminal applies for dispersed card key ciphertes to the background, transmitted to the SMAP module, and is decrypted by the module. In general, application service providers tend to be in this mode. Before the start of the application, the user needs to make an application application to the application service provider, and the application service provider completes the initialization of the user terminal.
Second mode: Using local SIM card as a SAM card security system
In this way, the key is placed in the SIM card of the mobile terminal, and the SMAP module applies for a key service to the SIM card when needed. The basic structure and process of this method are shown below:
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The application initialization of this program is provided by the mobile communication carrier, and the process of initialization is to increase the key required by the application in the SIM card and import the application in the SMAP module.
Third mode: internal simulation SAM card security system
In this way, the key is placed inside the SMAP module, and the SMAP module calculates a key to access the IC card by the built-in security service when needed. The basic structure and process of this method are shown below:
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Source: Wiku Electronic Market Network
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