CN211264341U

CN211264341U - Anti-copy access control card

Info

Publication number: CN211264341U
Application number: CN201922305857.5U
Authority: CN
Inventors: 黄火养
Original assignee: Guangdong Lezhu Technology Co ltd
Current assignee: Guangdong Lezhu Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-14
Anticipated expiration: 2029-12-19

Abstract

The utility model relates to an entrance guard's card field specifically discloses an entrance guard's card of preventing duplicating, including the IC chip and the antenna coil that link to each other, the IC chip contains communication logic circuit and a plurality of conventional storage sector to and be used for storing additional password information's newly-increased storage sector, newly-increased storage sector links to each other with communication logic circuit. The utility model discloses an add to entrance guard's card commonly used and establish extra storage sector, the password of this newly-increased sector is verified simultaneously to the system when reading the card and verifying, makes conventional duplication entrance guard's card hand lose efficacy owing to lack corresponding carrier, and the entrance guard's card design through this scheme customization takes lowly, and the production low price only needs to modify the procedure and can be compatible with current card reader, need not modify the access control system hardware.

Description

Anti-copy access control card

Technical Field

The utility model relates to an entrance guard's card field specifically discloses an prevent duplicating entrance guard's card.

Background

Along with the development of electronic technology, entrance guard IC cards are more and more common in our daily life, locks adopting the IC cards as identification keys are more and more popularized, and the integration of entrance guard and a one-card system becomes the first choice of a plurality of large-scale enterprises.

However, along with the popularization of the technology, the IC card is copied maliciously, counterfeited and cracked more and more, once the IC card is copied maliciously or swiped embezzledly, the IC card brings great threat to the property and security of enterprises and individuals, most of the common IC cards are M1 cards, many read-write devices on the market can crack the key and data of the common M1 card, and then the key and data are copied into the UID card to realize cloning, thereby affecting the security of the smart door lock. Usually, the implementation is difficult or easy to crack through encryption algorithm or reading counting and other modes, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the difficulty or problem of preventing duplicating of current IC-card, the utility model provides an prevent duplicating entrance guard's card.

The utility model adopts the technical proposal that: the utility model provides an anti-copy entrance guard card, includes IC chip and antenna coil that link to each other, and the IC chip contains communication logic circuit and a plurality of conventional storage sector to and be used for storing additional password information's newly-increased storage sector, newly-increased storage sector links to each other with communication logic circuit.

Preferably, there are one or more of the additional storage sectors.

Preferably, the physical address of the newly added storage sector is continued to the physical address of the conventional storage sector

The utility model has the advantages that: the additional storage sector is additionally arranged on the common access control card, and the system simultaneously verifies the password of the newly added sector when reading and verifying the card, so that the conventional access control card copying section fails due to lack of a corresponding carrier.

Drawings

Fig. 1 is the storage diagram of the anti-copy access card of the present invention.

Fig. 2 is a schematic diagram of the password structure of the present invention.

Detailed Description

Referring to fig. 1 and fig. 2, one of the embodiments of this application, take the M1 card as an example, the utility model relates to a prevent duplicating entrance guard's card, the IC chip and the antenna coil that link to each other, the IC chip contains communication logic circuit and a plurality of conventional storage sector, is equipped with one or more in the IC chip and is used for storing extra cryptographic information's newly-increased storage sector, newly-increased storage sector links to each other with communication logic circuit. The physical address of the newly added storage sector continues the physical address of the conventional storage sector, so that programming and physical addressing and reading and writing of a card reader are facilitated.

The anti-copy access control card is a customized M1 card, has one more sector than a common M1 card and a UID card, and even if a secret key is cracked, a cracker does not have a carrier to copy data and the secret key of the newly added storage sector. The integrated structure of the IC chip does not need to be redesigned, only a storage sector needs to be newly added, the design cost is low, the production price is low, the card reader can be compatible with the existing card reader only by modifying a program, and the hardware of the access control system does not need to be modified.

Taking the example of adding 1 new storage sector, the physical address of the new storage sector is (0X40-0X43), the key data is stored in the sector, and the sector password is generated according to the chip ID, so that one card with one password is realized.

Referring to fig. 2, the access card reader program needs to determine the SAK and ATQA data and prevent copying using the S70 card as the UID card.

Claims

1. The utility model provides an anti-copy entrance guard card, includes IC chip and antenna coil that link to each other, and the IC chip contains communication logic circuit and a plurality of conventional storage sector, characterized by: the IC chip also includes a newly added storage sector for storing additional cryptographic information, the newly added storage sector being connected to the communication logic.

2. The anti-copy access control card of claim 1, wherein: one or more of the newly added storage sectors are provided.

3. The anti-copy access control card of claim 1, wherein: the physical address of the newly added storage sector continues the physical address of the conventional storage sector.