Abstract: [PROBLEM] An information processing system, an information processing method, and an information processing program capable of maintaining safety of a control operation of a device in the device that can be controlled via a network are provided. [MEANS FOR SOLUTION] An information processing system 100 is a system capable of performing control of devices via a network, the system comprises: a white control condition registration unit 18 in which an appropriate control condition in each of the devices is registered in advance; and a control unit 17 that executes control of the devices by collating setting information set to execute the control on the devices with the appropriate control condition corresponding to setting on the devices.

Abstract: An electronic file sending method is provided to securely and easily send en electronic file to a receiver. A receiving apparatus receives from a sending apparatus an electronic mail including an encrypted electronic file. The sending apparatus uses a public key of a management server to encrypt a decryption password that is necessary to decrypt the encrypted electronic file and sends the encrypted decryption password to the management server. In association with a file identifier of the electronic file, the management server stores the decryption password and an electronic mail address of a correct receiver, who is a receiver of the receiving apparatus. The receiving apparatus sends to the management server the file identifier of the electronic file and the electronic mail address of the receiver. The management server uses a public key of the receiving apparatus to encrypt the password and sends the encrypted password to the receiving apparatus.

Abstract: The present invention provides a method of and apparatus for controlling internet browsing and computer readable medium storing a computer program carrying out the method of the present invention. The present invention provides a database storing worthwhile keywords. When a worthwhile keyword is included in contents or information from the Internet, a user is allowed to browse such contents or information even if a forbidden keyword is included.