TL;DR: In this article, a system and method for managing cryptographic keys on a recipient system is presented, where a key ring file is opened on the recipient system and at least a recipient private key of a cryptographic key pair associated with a particular entity is received.
Abstract: A system and method for managing cryptographic keys on a recipient system. A key ring file is opened on the recipient system and at least a recipient private key of a cryptographic key pair associated with a particular entity is received. The recipient private key is saved in the key ring file such that the key is identifiably associated with the entity.
TL;DR: In this article, a log-on request is sent to IPMS and in a maintenance service process, a block 53 compares the propriety of user ID and password with the password stored beforehand.
Abstract: PURPOSE: To improve the maintainability of a decentralized data system by discriminating the number of roles which operator can administrate and judging which key is demanded for each role. CONSTITUTION: A log-on request 51 is sent to IPMS 24 and in a maintenance service process 32, a block 53 compares the propriety of user ID and password with the password stored beforehand. When the comparison is successful, the block 55 retrieves the role list assigned from the key ring file 36 by user ID and stores the role list a in key list 38, to complete the log-on process. If a block 61 is requested for a specific processing, a block 63 checks whether the process is locked, and if so, a block 64 accesses and retrieves the key list 38 to which the block 64 is allocated according to a demanding person's user ID. A block 65 checks whether or not the retrieved key matches with the key required by lock, and if so, the required processing is done and the processing is otherwise rejected.