Character display method, character display system and intelligent secret key equipment

A smart key device and character display technology, which is applied in the electronic field, can solve problems such as increasing the cost of smart key devices, and achieve the effect of saving storage space and releasing storage space

Active Publication Date: 2015-10-28
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The memory of the security chip in the general smart key device cannot meet the needs of storing such a large font. Therefore, most of them use a memory extended outside the security chip to store the font.
However, expanding a memory outside the security chip to store the word library will increase the cost of the smart key device

Method used

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  • Character display method, character display system and intelligent secret key equipment
  • Character display method, character display system and intelligent secret key equipment
  • Character display method, character display system and intelligent secret key equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a font initialization system 10, such as figure 1 As shown, the system includes: an initialization device 11 and a smart key device 12 (such as ICBC U-shield, Agricultural Bank K treasure, etc.).

[0045] In this embodiment, the initialization device 11 is used to group all character information in the font library according to a preset strategy to generate one or more character information packets, wherein each character information packet contains character information corresponding to at least two characters; It is used to obtain the key, and calculate the check code corresponding to each character information package of the font according to the key, and send the key and the corresponding check code to the smart key device; the smart key The device 12 receives and saves the key and the verification code corresponding to each character information packet in the font library.

[0046] Or, the initialization device sends each character informa...

Embodiment 2

[0097] This embodiment provides another font initialization system 10, such as figure 1 As shown, the system includes: an initialization device 11 and a smart key device 12 (such as ICBC U-shield, Agricultural Bank K treasure, etc.).

[0098] The difference between the font initialization system 10 provided by this embodiment 2 and the embodiment 1 is that: because the verification method of the character information packet by the smart key device 12 is changed, the initialization device 11 only sends its own public key to the smart key device 12. The smart key device 12 saves the public key for verifying the character information package. In addition, the initialization device 11 also needs to calculate the information to be verified for each character information package in the font according to its own private key, so that the smart key device When the key device receives the character information packet and the corresponding information to be verified, it can verify the in...

Embodiment 3

[0106] This embodiment provides a character display system 20, such as Figure 4 As shown, the system includes: a terminal 13 and a smart key device 12 (for example, ICBC U-shield, Agricultural Bank K treasure, etc.).

[0107] In this embodiment, the terminal 13 is configured to select a character information packet containing the character information corresponding to the character to be displayed from a plurality of character information packets according to the character information corresponding to the character to be displayed, and the character information packet sent to the smart key device 12, the character information includes the font and code corresponding to the character; this system includes one or more smart key devices 12, at this time, the terminal 13 may only give One or some send character information packets, and may also send character information packets to all smart key devices 12, and the terminal can send character information packets according to the ...

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Abstract

The invention provides a character display method, a character display system and intelligent secret key equipment. The method comprises the following steps that: a terminal selects a character information packet including character information corresponding to characters to be displayed from a plurality of character information packets according to the character information corresponding to the characters to be displayed, and sends the character information packet to the intelligent secret key equipment, wherein the character information packet comprises at least two pieces of character information; the intelligent secret key equipment verifies the received character information packet according to a locally stored secret key; and if the verification is passed, the character information corresponding to the characters to be displayed is selected from the received character information packet, and the characters to be displayed are displayed according to the selected character information. A word stock is not stored in the intelligent secret key equipment, so that a storage space of a chip of the intelligent secret key equipment is greatly released; the character information packet is checked, and the characters to be displayed are displayed after the checking is passed; externally imported character information data is enabled to be accurate and legal, so that the goal of correctly displaying the characters to be displayed is achieved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a character display method, system and intelligent key device. Background technique [0002] In traditional smart key devices (such as USBKEY), characters (including Chinese characters, numbers, letters, symbols, etc.) are represented, exchanged and processed in the form of internal codes. When a character needs to be displayed, the smart key device converts the internal code of the character to be displayed into an area code, uses the area code to extract the font of the character to be displayed from the font library stored in the smart key device, and then displays it on the screen according to the font information. The characters are displayed in dot matrix. The character model is the corresponding code when the character is displayed on the dot matrix. To store graphics or text in the form of fonts, each point requires a bit to store, a bit of 0 means that the pixel is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/35
CPCG06F21/35G06F2221/2141
Inventor 李东声
Owner TENDYRON CORP
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