20130291083 | WIRELESS SMART KEY DEVICE AND SIGNING METHOD THEREOF - The disclosure discloses a wireless smart key device and signing method thereof. The wireless smart key device includes an online device and an offline device; the online device includes a serial communication interface, a first module and a first wireless receiving and sending module; the offline device includes a second module, a power module, a second wireless receiving and sending module, an information inputting module and an information outputting module. The signing method includes that the online device is powered up, receives transaction information message sent by a host computer and communicates with the offline device; the offline device obtains transaction information, outputs the transaction information, waits for receiving user operation information and receives the user operation information; the offline device communicates with the online device; the online device obtains operation result of processing the user operation; the online device sends corresponding operation result to the host computer. | 10-31-2013 |