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Embedded security component based on SPI communication interface

An SPI interface and security element technology, applied in electrical components, error prevention/detection using return channels, digital transmission systems, etc. The effect of low integration complexity, low development difficulty and high communication efficiency

Inactive Publication Date: 2019-01-04
GIESECKE & DEVRIENT (CHINA) INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous expansion of the application field of embedded secure elements, it needs to be integrated into various embedded terminal devices, but often embedded terminal devices do not support traditional secure element communication interfaces, so integration complexity is high and development is difficult , and the traditional communication interface communication rate is low, resulting in lower transmission efficiency

Method used

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  • Embedded security component based on SPI communication interface

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Embodiment 1

[0033] Such as figure 1 As shown, Embodiment 1 of the present invention proposes an embedded security element based on an SPI communication interface, including: an SPI interface, a power module, a power-on handshake response module, a message verification module and a low-power processing module;

[0034] The embedded secure element (eSE) has 4 signal lines of SPI interface: including MOSI, MISO, SCLK, SLSI. In addition, the embedded secure element needs to be powered by VCC and GND.

[0035] The SPI (Serial Peripheral Interface--Serial Peripheral Interface) bus system is a synchronous serial peripheral interface, which enables the MCU to communicate with various peripheral devices in a serial manner to exchange information. The SPI bus can be directly connected to a variety of standard peripheral devices produced by various manufacturers, including FLASHRAM, network controllers, LCD display drivers, A / D converters, and MCUs. The interface generally uses 4 lines: serial clo...

Embodiment 2

[0050] Embodiment 2 of the present invention proposes an embedded security element based on the SPI communication interface. Except for the power supply module, the remaining parts are the same as in Embodiment 1, wherein:

[0051] The power module uses the same power supply as the MCU to power on and off at the same time.

[0052] The inventiveness of the present invention lies in:

[0053] The hardware integration method of the embedded secure element in this solution; the power-on handshake response of the embedded secure element in this solution; the message transmission definition of the embedded secure element in this solution; the low-power processing of the embedded secure element in this solution.

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Abstract

The invention discloses an embedded security component based on SPI communication interface. The embedded security component comprises a SPI interface, a handshake response module and a message verification module; the SPI interface comprises four signal lines: MOSI, MISO, SCLK and SLSI which are connected to four signal lines of the same type as the MCU; the handshake response module is used forsending response information to the MCU; the MCU adopts the parameters provided by the response information to carry out the subsequent message communication; the message checking module is used for message communication with the MCU; after receiving the complete message, both sides of the communication process to give a response and verify the message. The embedded safety component based on the SPI communication interface of the invention has low integration complexity, low development difficulty and high communication efficiency.

Description

technical field [0001] The invention relates to the fields of embedded security elements and smart cards, in particular to an embedded security element based on an SPI communication interface. Background technique [0002] The current embedded security elements generally follow the communication interfaces of smart cards, including communication interface protocols based on ISO7 / IEC7816, ISO / IEC 14443, SWP / HCI, etc. These interface protocols have corresponding technical specification definitions and corresponding testing method. The message interaction between the embedded secure element and the terminal is completed through these interfaces. [0003] With the continuous expansion of the application field of embedded secure elements, it needs to be integrated into various embedded terminal devices, but often embedded terminal devices do not support traditional secure element communication interfaces, so integration complexity is high and development is difficult , and the ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/16
CPCH04L1/0061H04L1/16
Inventor 张辉林宇董云河姚文亮
Owner GIESECKE & DEVRIENT (CHINA) INFORMATION TECH CO LTD
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