| 主权项 |
1. A method of facilitating, at a peripheral device, an efficient exchange of messages in a system for authenticating access to a base device, said authenticating based on a data set comprising a plurality of biometric templates, said method comprising:
receiving, from said base device, a wrapped template request command data unit, said wrapped template request command data unit including:
a template request command data unit for forwarding to a memory device physically connected to said peripheral device, said template request command data unit requesting transmission of said data set to said base device, andan indication that a response message from said memory device will contain a biometric template; extracting said template request command data unit from said wrapped template request command data unit; recording said indication that said response message from said memory device will contain a biometric template; forwarding said template request command data unit to said memory device; receiving a response message from said memory device; subsequent to having recorded said indication and received said response message:
extracting a copy of said data set received in said response message;storing said copy of said data set;forwarding said response message to said base device;comparing, at said peripheral device responsive to said obtaining, said biometric template, extracted from said data set, to a biometric candidate obtained from a biometric input device integrated with said peripheral device; andtransmitting an indication of a result of said comparing to said base device so that, at the base device and based on the indication of the result, access to the base device may be controlled. |
