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Certificate loading method and certificate updating method of card reader and card reader

A card reader and certificate technology, applied in the field of smart cards, can solve problems such as information theft, identity fraud, and increase the risk of information and system being attacked, and achieve the effect of ensuring integrity and confidentiality

Active Publication Date: 2015-12-16
中外建设信息有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional communication process does not take protective measures for sensitive information and instructions, thus increasing the risk of information and system being attacked, causing problems such as identity fraud, information theft and data tampering

Method used

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  • Certificate loading method and certificate updating method of card reader and card reader
  • Certificate loading method and certificate updating method of card reader and card reader
  • Certificate loading method and certificate updating method of card reader and card reader

Examples

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Embodiment Construction

[0064] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0065] An embodiment of the present invention provides a card reader with a CA certificate function, and the card reader realizes the interaction between a CPU card and a host computer.

[0066] In practical application, the card reader includes: chip hardware and chip operating system (COS). Chip hardware includes: security chip, radio frequency circuit, USB interface module and peripheral circuit.

[0067] Among them, the security chip includes a non-volatile memory, another memory, a processor supporting international general encryption and decryption algorithms and specific national secret algorithms, and the like. The security chip supports the ISO14443TypeA protoco...

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Abstract

The present invention provides a certificate loading method and a certificate updating method of a card reader and the card reader. The certificate loading method comprises: verifying whether a signature of a first certificate to be loaded is legitimate according to a public key of an application root certificate in the card reader; If the signature is legitimate, analyzing the first certificate, to obtain a public key of the first certificate; encrypting preset data by using the public key, to obtain encrypted data after encryption; decrypting the encrypted data according to a private key of a pre-generated public-private key pair, to obtain data after decryption, wherein the private key is a private key corresponding to the public key of the first certificate in the public-private key pair that is pre-generated by the card reader and is used to acquire the first certificate; and determining whether the data after decryption is consistent with the preset data, if yes, writing the first certificate to a specific location of the card reader, to finish loading of the first certificate. According to the method, after a safety certificate is loaded into the card reader, legality, confidentiality and integrity of information can be ensured in a transaction process with a CPU card.

Description

technical field [0001] The invention relates to smart card technology, in particular to a certificate loading method for a card reader, a certificate updating method for a card reader and a card reader. Background technique [0002] With the development of the times, the urban transportation card industry is becoming more and more mature. According to incomplete statistics, more than 440 cities across the country have established city card IC card systems of different sizes. In recent years, the security of the card-using environment has become a widespread concern of the whole society. The field of urban one-card belongs to the people's livelihood project, and the safety of the card-using environment is related to the interests of cardholders. Once the security of the card is violated, it will not only cause losses to cardholders, but also pose a threat to social stability. [0003] The core of the security problem of the urban traffic card system and its application is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/51G06F9/445G06K7/00
CPCG06F8/65G06F21/51G06K7/0008
Inventor 王辉周欣徐科马虹申绯斐马健殷骏尚小航
Owner 中外建设信息有限责任公司
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