A secure device capable of reducing influences by interruptions of communication with an external device and allowing a user to install a desired application program speedily and safely. Command storage section (106) of this secure device (100) stores command groups for executing card issuance. Card issuance section (104) extracts a series of card issuance commands corresponding to a function of a card to be acquired from the command group stored in command storage section (106) and writes the commands into a buffer of card management section (102), Card management section (102) executes each card issuance command written by card issuance section (104). Card issuance is completed through internal processing of secure device (100).