Intelligent cipher key equipment and method for information exchange with external apparatus

Abstract

The present invention provides an intelligent key device and an information exchange method for the intelligent key device and a peripheral device. The intelligent key device comprises a USB interface, a card reader connected with the USB interface, as well as an intelligent card detachably arranged in the card reader. A key generation-management program and an encryption-decryption program are stored in a memory of the intelligent card. In the method provided by the present invention, the peripheral device is provided with an application program and an encryption service interface program; when the application program is run, the encryption service interface program is invoked and verification data is sent out; request information for carrying out encryption service to the verification data is sent out by the encryption service interface program and transmitted to the intelligent card; the encryption-decryption program encrypts or decrypts the verification data and then transmits the verification data to the key generation-management program; the key generation-management program verifies the verification data and then returns a verification result. The information exchange method can provide convenience for the production of the intelligent key device, guarantee the production safety of the intelligent key device and ensure better universality of the intelligent key device.

Description

Technical field [0001] The invention relates to a data security storage device, in particular to a smart key device implemented by using a smart card and a method for using this smart card to exchange information with external devices. Background technique [0002] With the development of electronic technology, people began to use electronic payment services such as electronic wallets and online banking, which brought great convenience to people's lives. When people use electronic payment services, a third party, such as a bank, provides users with a smart key device that stores related programs that support electronic payment services, such as electronic payment services using bank card account and password verification Procedures etc. Because users and third parties have higher security requirements for this information, the security performance requirements for smart key devices that store this information are also getting higher. [0003] The existing smart key devices are mo...

AI Technical Summary

Problems solved by technology

If the smart card manufacturer hands over the produced smart card to an external USB interface manufacturer to complete the production of the smart key device, it will bring unsafe factors to the smart key device, thereby bringing a negative impact on the information security of the smart key device. Hidden danger

[0006] At the same time, since the smart card often only stores one or more key generation and management programs for a specific smart card (such as a bank card), that is, a smart key device can only be used to verify the account number and password of a specific smart card. If the type of smart card used by the user is changed, the smart key device can no longer be used, and the general performance of the smart key device is poor, which also brings inconvenience to the user

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