Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

FPGA (Field Programmable Gate Array)-based algorithm encryption card specially for tax control

An encryption card and algorithm technology, applied in user identity/authority verification, internal/peripheral computer component protection, digital data authentication, etc., can solve problems such as tax loss and rampant fake invoices, and achieve the effect of rapid processing

Active Publication Date: 2014-08-27
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the flaws in the production of invoices and the loopholes in the management of the tax control department, fake invoices are rampant in my country at present, causing a large amount of tax loss to the country

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • FPGA (Field Programmable Gate Array)-based algorithm encryption card specially for tax control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] The encryption card of the present invention will be further described below in conjunction with the accompanying drawings:

[0033] As shown in the accompanying drawings, the hardware shown in the FPGA-based tax control special algorithm encryption card of the present invention includes: FPGA chip, 8 pieces of tax control special encryption algorithm chip SSX12, configuration chip EPCS4, power chip 1, power chip 2, 40MHz Crystal oscillator, program debugging port J2, program download port J1, embedded PCI-IP core.

[0034] The FPGA chip is the core of the entire encryption card, and is used to connect to the physical 32-bit PCI bus through the embedded PCI-IP core.

[0035] The FPGA chip is connected to 8 special tax control algorithm chips to realize data interaction, and a RAM area is set inside the FPGA to realize data storage; a state machine is designed in the FPGA chip to realize the logic control of the algorithm chip.

[0036] The 40MHz crystal oscillator is c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides and discloses an FPGA (Field Programmable Gate Array)-based algorithm encryption card specially for tax control, comprising an FPGA chip, a cryptographic algorithm chip specially for the tax control, an FPGA configuration chip, a power chip and a PCI-IP (Peripheral Component Interconnect-Intellectual Property) core. The data interaction between the encryption card and a host is carried out through a 32 bit PCI bus. The FPGA-based algorithm encryption card specially for the tax control is mainly used for the data encryption and decryption operations of the field of the tax control; the interface logic of the PCI bus is realized by utilizing the FPGA and the embedded PCI-IP core technology; and the running of a cipher chip is controlled through a state machine of the FPGA. The encryption card has the advantages of fast speed, high efficiency, low cost and small power consumption.

Description

technical field [0001] The invention relates to a computer application technology, in particular to an FPGA-based special algorithm encryption card for tax control. Background technique [0002] Due to the flaws in the production of invoices and the loopholes in the management of the tax control department, fake invoices are rampant in my country at present, causing a large amount of tax loss to the country. On the one hand, relevant personnel engaged in catering, service, commerce, construction and transportation will buy fake invoices for the purpose of tax evasion; on the other hand, relevant personnel of many enterprises will buy a large number of wigs under the shady cash transaction for embezzlement ticket. At present, national tax, local tax, provinces, and various tax invoices are different, and it is very difficult to distinguish, so it is an opportunity for counterfeiters. The FPGA-based special algorithm encryption card for tax control in the present invention c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/34H04L9/32G06F21/76
Inventor 苏振宇
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com