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

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.