Server device, client device, computer readable medium, session managing method, and client server system

A server device comprising:

• a processor to execute a program;
• and
• a memory to store the program which, when executed by the processor, results in performance of steps comprising,
• receiving a session start message describing a dependency including a single service or a plurality of services to be used, from a client device,
• generating processes of the single service or the plurality of services to be used, and a communication connection between the services, according to the session start message,
• updating periodically a common key that protects a communication between the server device and the client device, and an interprocess communication on the sever device, provides the common key to the client device and the process,
• and when either process in the session fails in a periodical key updating, deleting the session.

A non-transitory computer readable medium storing a server device program to cause a computer to execute:

• receiving a session start message describing a dependency including a single service or a plurality of services to be used, from a client device to a server device,
• generating processes of the single service or the plurality of services to be used, and a communication connection between the services, according to the session start message,
• updating step to update periodically a common key that protects a communication between the server device and the client device, and an interprocess communication on the sever device, provides the common key to the client device and the process,
• and when either process in the session fails in a periodical key updating, deleting the session.

A session managing method comprising:

• receiving a session start message describing a dependency including single service or a plurality of services to be used, from a client device;
• generating processes of the single service or the plurality of services to be used, and a communication connection between the services, according to the session start message;
• updating periodically a common key that protects the communication between a server device and the client device, and an interprocess communication on the sever device, provides the common key to the client device and the process;
• and when either process in the session fails in a periodical key updating, deleting the session.

A client server system comprising a client device and a server device, wherein

• the server device receives a session start message describing a dependency including a single service or a plurality of services to be used, from a client device,
• generates processes of the single service or the plurality of services to be used, and a communication connection between the services, according to the session start message,
• updates periodically a common key that protects the communication between the server device and the client device, and an interprocess communication on the sever device, provides the common key to the client device and the process,
• and when either process in the session fails in a periodical key updating, deletes the session.