KEY MANAGING APPARATUS, ENCRYPTION PROCESSING SYSTEM, COMPUTER PROGRAM, AND KEY MANAGING METHOD

PROBLEM TO BE SOLVED: To facilitate updating of a key as well as preventing a key for use in encryption processing from being leaked.SOLUTION: A key-and-password generating management apparatus 100 creates password information for generation and management of a key to be used by a business application apparatus 500. A key storing apparatus 200 controls accessing of key information held therein by a password. A password storing apparatus 300 controls accessing of the password information held therein by the password. The key-and-password generating management apparatus 100 creates a key storing password from call information (such as a call stack) of the business application apparatus 500, in which it is difficult for even a manager or developer to obtain the call information, and from the password information, which is input by the manager. The key-and-password generating management apparatus 100 creates a password storing password from the created key information.