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RFID variable current density technology module manufacture method

A production method and variable technology, which can be applied to record carriers, instruments, computer parts, etc. used by machines, and can solve problems such as data transmission security cannot be guaranteed, data security cannot be protected, etc.

Inactive Publication Date: 2008-04-30
上海正诺电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Since RFID with fixed stream density sequence algorithm technology can be copied, it is inevitable that the data during transmission is illegally intercepted and deciphered, so the security of data transmission cannot be guaranteed, and therefore data security cannot be protected.

Method used

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  • RFID variable current density technology module manufacture method

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Embodiment Construction

[0012] A method for making an RFID variable density technology module, characterized in that the RFID variable density technology module described in the above-mentioned RFID chip includes a submodule A (1) that can realize a flow density algorithm circuit. In this embodiment Among them, A includes a 48-bit shift register, a nonlinear network, a NAND gate, and an accumulator, and the general mathematical expression of the algorithm is: ∑C n x n =C n x n +. . . . . +C 0 x 0 , the sub-module A(1) includes a configurable input interface A-1(2). In this embodiment, A-1(2) is composed of an input pin of 48 NAND gates, wherein A-1 The input state of (2) determines the internal circuit connection state of A(1) circuit, so changing the input state of A-1(2) can change the internal circuit connection of A circuit, so that A(1) can be changed The stream-dense algorithm of A (1) can thus be realized; the technical module also includes a sub-module B (5) that can realize a varia...

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Abstract

A RFID variable stream encryption technical module manufacture method is characterized in that the RFID variable stream encryption technical module in a RFID module includes a sub-module A(1) capable of realizing stream encryption arithmetic circuit; the technical module also includes a sub-module B(5) capable of realizing variable stream encryption arithmetic configuration circuit. Interface A-1(2) of the sub-module A(1) is connected with the interface B-1(3) of the sub-module B(5) to connect the sub-module A(1) with the sub-module B(5), wherein A-1(2) changes along with B-1(3) to change stream encryption circuit of A(1) along with configurable parameters stored in B-2(4) of B(5), thereby realizing configurable variation of stream encryption arithmetic of A(1) by data storage operation of B-2(4).

Description

Technical field: [0001] The invention relates to the field of RFID with the algorithm technology of the flow-density sequence, in particular to the technical field of the algorithm of the variable flow-density sequence of the RFID. Background technique: [0002] At present, RFIDs with stream density sequence algorithm technology, such as MF1S50 and MF1S70, all use fixed stream density sequence algorithm technology. That is: the fixed flow density sequence algorithm adopts a fixed circuit, IC microelectronics design technology, and IC chip is made into RFID IC chip through IC layout, and the RF resonant antenna is connected to the IC chip, and a complete RFID is formed through carrier packaging. , so that the algorithm of the fixed stream density sequence is realized in the IC chip of the RFID. [0003] The RFID using the stream-dense sequence algorithm technology encrypts the transmitted data through the stream-dense sequence algorithm, so as to prevent the data from being ...

Claims

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Application Information

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IPC IPC(8): G06K19/073
Inventor 李虹郁振宇初建朋
Owner 上海正诺电子技术有限公司
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