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A method for SIM card chip to be compatible with logic encryption card

A logic encryption card and chip technology, which is applied in the direction of cooperative devices, record carriers used by machines, instruments, etc., can solve the problem that the near-field communication solution cannot be directly applied

Inactive Publication Date: 2008-07-09
SHANGHAI FUDAN MICROELECTRONICS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In the widely used existing non-contact logical encryption cards, the near-field communication scheme based on the SIM card of the current contact CPU card cannot be directly applied

Method used

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  • A method for SIM card chip to be compatible with logic encryption card
  • A method for SIM card chip to be compatible with logic encryption card

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The compatible method of the present invention, as mentioned above, the specific method is:

[0012] First, add a non-contact logical encryption card function compatible circuit 1 in the SIM card chip containing the CPU card circuit 2 . In the contact interface part 4, the near field communication interface SWP etc. supporting the near field communication chip is added, as shown in Figure 1;

[0013] make described non-contact logical encryption card function compatible circuit 1 and CPU card circuit 2 can jointly address and visit a data memory (non-volatile memory) 3, as shown in Figure 1;

[0014] Use the operating system in the CPU card circuit 2 to manage and check the data stored in the above-mentioned data memory 3, check and verify the data information processed by the non-contact logic encryption card function compatible circuit 1, and control the non-contact logic encryption card function compatible circuit 1 application operation.

[0015] As mentioned ab...

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Abstract

The invention relates to a method for enabling a SIM card chip to be compatible with a logic encryption card. A non-contact logic encryption card function compatible circuit and a near-field communication interface are added in a SIM card chip with a CPU card circuit; the non-contact logic encryption card function compatible circuit and the CPU card circuit can jointly address and access a data memory; an operating system in the CPU card circuit is used to manage and detect data in the data memory, the data information processed by the non-contact logic encryption card function compatible circuit is checked and verified, and the application operation of the non-contact logic encryption card function compatible circuit is controlled. The SIM card chip can be compatible with the function of the non-contact logic encryption card, and the non-contact logic encryption card also has the function of the SIM card chip at the same time. The SIM card chip can not only solve the safety issue of the non-contact logic encryption card, but also allow the non-contact logic encryption card to be seamlessly transitted to the near-field communication application of the SIM card chip on the basis of maintaining the original function.

Description

technical field [0001] The invention relates to a method for being compatible with a logic encryption card, in particular to a method for a SIM card chip being compatible with a logic encryption card. Background technique [0002] With the development of information technology, the application fields of non-contact IC cards continue to expand, and the market holdings of non-contact IC cards continue to increase, especially in the fields of public transportation cards, campus cards, and Internet bar cards. The number of systems is impressive and continues to expand. At present, in the market, this type of card mainly adopts two card chips with different structures and functions, one is a non-contact logic encryption card chip with logic encryption function, and the other is a non-contact CPU card chip. Due to the low cost of logic encryption card chips, non-contact logic encryption card chips are mainly used at present. [0003] The above-mentioned cards mainly use logical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/073G06K17/00G06K7/00G06Q20/00
Inventor 张纲李清李蔚俞军
Owner SHANGHAI FUDAN MICROELECTRONICS GROUP
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