摘要:
An apparatus for limiting the use of a network address acquires identification data specific to a device connected to the network and generates a message preventing the device from using a network address generated based on the identification data. An apparatus for limiting data transfer detects that a device connected to a network sends data containing a network address generated based on an identifier specific to the device and prevents such data from being transferred.
摘要:
An information processing system capable of appropriate precise access control is provided. The information processing system of this invention includes an access controller capable of data transmission/reception, and a computer system connectable to a network via the access controller. The computer system includes an acquiring unit for acquiring user identification information for identifying a user, and application identification information for identifying an application which accesses the network, and an adding unit for generating an IP address on the basis of the acquired user identification information and application identification information, and adding the IP address to data to be transmitted via the application. The access controller includes an access control unit for controlling access to the network on the basis of the IP address added to the transmitted data.
摘要:
An image communication apparatus converts image data received through a communication line into bit image data to be reproduced as a visible image by means of using a data converting unit and a reproducing unit. The apparatus converts data from a data processing apparatus into bit image data to be reproduced as a visible image by means of using the data converting unit and the reproducing unit, so as to accomplish an efficient system as a whole.
摘要:
A digital signature method including a public information generating step of generating public information specific to each user in accordance with a public parameter common to each user and secret information specific to each user, a signature generating step of generating a signature of digital information by converting the digital information by using the secret information and the public parameter, and a signature discrimination step of verifying whether a relation between the digital information and the signature is correct, by using the public parameter and the public information, has, a user information generating step of generating new secret information specific to the user, a new parameter, and new public information by using the public information, a confirmation step of confirming whether or not the new secret information, new parameter, and new public information generated by the user information generating step satisfy a predetermined relation, and an enciphering step of enciphering digital information by using the new parameter and the new public information confirmed by the confirmation step.
摘要:
There are provided a facsimile apparatus in which fonts of plural languages each including plural characters need not be permanently stored from the beginning, and a control method therefor. A data request from the facsimile apparatus is recognized by an information processing apparatus, which in response transfers data meeting the request of the facsimile apparatus thereto, among the data managed in the information processing apparatus, and the facsimile apparatus is enabled to manage and utilize thus transferred data, whereby the facsimile apparatus can effectively utilize the memory.
摘要:
Disclosed is an image processing apparatus. The image processing apparatus comprises interface means for exchanging data with an external information processing terminal, instruction receipt means for receiving an instruction via said interface means from said external information processing terminal, and control means for controlling various processes, such as communication, image recording, and image reading, in consonance with said instruction received by said instruction receipt means, and wherein said instruction receipt means receives another instruction though a control process for one instruction is being performed.
摘要:
An image input device which includes a means for inputting image data, a memory for storing a secret information and an operator for carrying out an operation by using the image data and the secret information.
摘要:
An image input device which includes a means for inputting image data, a memory for storing a secret information and an operator for carrying out an operation by using the image data and the secret information.
摘要:
An information processing apparatus includes a determining unit adapted to determine a target instruction to be modified to a camouflaged instruction among instructions contained in a processing target program, a camouflaged instruction generating unit adapted to generate the camouflaged instruction corresponding to the target instruction, a restore command generating unit adapted to generate a restore command for restoring the generated camouflaged instruction to the corresponding target instruction, and a unit adapted to modify the target instruction contained in the processing target program with the generated camouflaged instruction and add the restore command to the program, wherein the restore command performs the restoration by referencing a memory storing an output value of a processing command contained in the processing target program and identifying the position of the target instruction in the program or the target instruction based on the referenced value.
摘要:
A host requests a public key certificate from a gateway, and the gateway requests a public key certificate from a Certification Authority (CA). The CA generates a public key certificate, which is sent to the host through the gateway. The host sets an IPv6 address based on information from the gateway. The host requests and receives a new public key certificate whenever necessary, and sends a public key certificate including the IPv6 address to the communication counterpart.