1. A cryptographic client device for executing a cryptographic process on specified subject data to be performed the cryptographic process, comprising: a storage device which stores a cryptographic key used for a cryptographic process, a cryptographic module for executing the cryptographic process, and an evaluation description file of the cryptographic module related to the cryptographic module; a cryptographic process demand accepting device configured to accept the demand information of the cryptographic process; a cryptographic key acquiring device configured to acquire the cryptographic key according to the demand information from the storage device on the basis of the demand information accepted in the cryptographic process demand accepting device; a cryptographic evaluation description file acquiring device configured to acquire the cryptographic evaluation description file corresponding to the demand information from the storage device on the basis of the demand information accepted in the cryptographic process demand accepting device; a cryptographic process executing device configured to execute a cryptographic process on the subject data to be performed the cryptographic process by acquiring the cryptographic module corresponding to the cryptographic evaluation description file acquired by the cryptographic evaluation description file acquiring device; and an output device configured to issue encrypted subject data executed by the cryptographic process executing device.