Fujitsu Corporation

Gmd-forschungszentrum Informationstecknik Gmbh

Ikuya Morikawa

Yumi Sakemi

Dai Yamamoto

Masahiko Takenaka

Takao Ogura

Naoya Torii

Kenichi Fukuda

Hisashi Kojima

Yuji Yamaoka

Makoto Minoura

Yuko Nakayama

Hiroshi Tsuda

Masanobu Morinaga

Kouichi Itoh

Satoru Torii

Masaya Yasuda

Junji Takagi

Toshiya Shimizu

Takeaki Terada

Elisabeth Giessler

Rainer Prinoth

Thomas Schroeder

Olaf Karsten Henninger

Yuji Higuchi

A storage unit holds a classification model that calculates a confidence score from image data, and a transformation model that is a model for transforming a feature value having fewer dimensions than the image data into the image data and is created such that a set of feature values corresponding to a set of image data follows a probability distribution. A processing unit extracts a feature value according to the probability distribution. The processing unit transforms the feature value into image data using the transformation model and calculates a confidence score corresponding to the image data using the classification model. The processing unit updates, based on the probability distribution and the feature value, a feature value to be input to the transformation model from the feature value to a feature value in such a manner that a confidence score to be calculated is higher than the confidence score.

Control method and information processing apparatus

A registration system includes a management apparatus configured to acquire first information of an authentication key for registration from a communication processing apparatus to communicate with the management apparatus, put a signature for the first information with a first registration key, and transmit the first information completed with the signature to the communication processing apparatus, and a registration server configured to acquire a registration request including the first information completed with the signature by the management apparatus from the communication processing apparatus to communicate with the registration server, verify the signature put for the first information included in the registration request, by using a second registration key paired with the first registration key, and register the first information included in the registration request, based on a result of verifying the signature put for the first information.

Registration system and registration method

In a profile data delivery control apparatus, a storage unit stores therein a public key and a private key. A control unit obtains profile data including the identification information of a service provided using a server, and when the profile data satisfies a prescribed validity condition, attaches a signature to the profile data using the private key. The control unit embeds the public key to be used to verify the signature, in a client application that causes a client to perform an authentication process based on the profile data, and delivers the client application with the public key embedded.

Apparatus and method for controlling profile data delivery

An information processing terminal generates a shared key by a public key cryptosystem using an identifier. The information processing terminal calculates a first calculation value by using an algorithm that outputs an element on an extension field of a prime field from two points on an additive cyclic group on an elliptic curve that is defined by the prime field. The information processing terminal holds the first calculation value. The information processing terminal calculates a second calculation value from a variable using an identifier of a sharer that shares the shared key, a private key of the information processing terminal, and the algorithm. The information processing terminal generates the shared key by executing a final exponentiation to each of the exponentiation of the first calculation value and the second calculation value.

Computer-readable recording medium, shared key generation method, and information processing terminal

A first device generates first encrypted data from a second public key corresponding to second ID regarding a second device and a first random number and transmits first ID regarding the first device, second ID, and first encrypted data. The second device generates second encrypted data from a first public key corresponding to the first ID and a second random number, generates second verification data by generating a second shared-key candidate from the second random number, the first encrypted data, and a second private key, and transmits the second encrypted data and second verification data. The first device generates first verification data by generating a first shared-key candidate from the first random number, the second encrypted data, and a first private key and transmits the first verification data. The first and second devices examine the second and first verification data by using the first and second shared-key candidates, respectively.

Mutual authentication method and authentication apparatus

A method of processing a ciphertext, the method includes: acquiring a part of a plurality of encrypted elements included in the ciphertext, each of the plurality of encrypted elements being an encrypted element in which values of a plurality of elements in a multidimensional determination target vector are respectively encrypted by homomorphic encryption; decrypting the acquired part of the plurality of encrypted elements; and determining validity of the determination target vector based on a relationship between at least one value obtained by the decrypting and both of 0 and 1.

Method of processing a ciphertext, apparatus, and storage medium

A computer generates a third encrypted polynomial that corresponds to a result of encrypting a third polynomial by use of a result of multiplying a first encrypted polynomial by a second encrypted polynomial, and outputs cryptographic information that represents the third encrypted polynomial. The first encrypted polynomial is a polynomial obtained by encrypting a first polynomial that corresponds to a first vector, and the second encrypted polynomial is a polynomial obtained by encrypting a second polynomial that corresponds to a second vector. The third polynomial includes a first term that has a coefficient based on an inner product of the first vector and the second vector and a second term other than the first term, in which a coefficient of the second term is masked.

Cryptographic processing method and cryptographic processing device

An electronic circuit includes: a first logic circuit coupled to a first input line and a first output line; a second logic circuit coupled to a second input line and a second output line; a first line pattern coupled to the first output line and including an input line different from the second input line; and a second line pattern coupled to the second output line and different from the first input line, wherein at least a part of the first output line, the first line pattern, the second output line, or the second line pattern has a folded shape or a circular shape.

Electronic circuit, latch circuit, and external action detecting circuit

A computer is disclosed that performs an electronic mail creation process. The computer creates an electronic mail by referring to a storage part in which received electronic mails are stored, using at least one electronic mail of the received electronic mails stored in the storage part, the at least one electronic mail selected based on a criteria being set beforehand, and changing at least one of header information and a body text of the at least one electronic mail.

Electronic mail creation recording medium, method, and information processing apparatus

There is disclosed a Java applet that causes a computer to execute plural predetermined Java applet programs. The Java applet is attached with an electronic signature for certifying an origin. The Java applet causes the computer to execute: an alteration detection step that detects alteration to deployment information, based on the identification information for detecting alteration to the deployment information defining respective locations of the plural predetermined Java applet programs; a load program startup step that starts a load program for loading the plural predetermined Java applet programs; and a load step that makes the started load program load the plural predetermined Java applet programs on the basis of the deployment information unless alteration is detected by the alteration detection step.

Applet, archive file generation method, archive file generation program, and archive file generation device

A page information collection program for efficiently collecting pages required to verify a web site. When a page acquisition request is input, a page acquisition section acquires the contents of a page and creates page information including the contents of the page and communication information used to acquire the page. Next, a classification section stores the page information put into a group in accordance with an assignment determination condition. If the target page information does not satisfy the assignment determination condition of any group, a grouping section creates an assignment determination condition satisfied by the target page information and a corresponding group, and stores the page information put into the created group. A page acquisition request section outputs a page acquisition request based on the link information in the page information put into the group created by the grouping section, to the page acquisition section.

Page information collection program, page information collection method, and page information collection apparatus

Disclosed is a communication setting management system comprising setting template entry/edit means for entering or editing a setting template that collects contents to be set for the communication entities, with reference to information on a concrete method of setting the communication entities; setting template accumulation means for storing the setting template entered or edited by the setting template entry/edit means; application rule entry/edit means for entering or editing application rules prescribing rules of which setting plate is to be applied to a communication having what kind of attribute; application rule storing means for storing the application rule input or edited by the application rule entry/edit means; and retrieval and response function means for selecting a corresponding application rule from the application rule storing means in accordance with the attribute of a destination communication entity to distribute the setting, reading from the setting template storing means a setting template having a setting template name specified by the application rule, and distributing the read setting template to the communication entity.

Communication setting management system

A system of distributed group management for generating authentication information relating to a group to which users belong at a high speed on a client side and, at the same time, wherein a server side can verify this at a high speed. This system provides a group certificate issuing apparatus for issuing a group certificate on a client side based on original group information including the name of the group to which the users belong and a group certificate verification unit for verifying a legitimacy of the certificate transmitted from the client side in a server. Here, the group certificate issuing apparatus adds an issuance side processed value obtained by processing the information of the original group information by a cryptographic function to this original group information to obtain a group certificate, and the group certificate verification unit processes part of information included in the received certificate by an identical cryptographic function to obtain a verification side processed value and performs an authentication by confirming that the issuance side processed value and the verification side processed value coincide.

System and method for distributed group management

A distributed environment type computer system enabling a service layer to execute consecutive message communications at a high speed provided with a message transferring unit, a service layer for providing a specific additional service to an application, a policy manager for supplying a policy, a communication layer for transferring messages, an analyzing unit for extracting from a message the parameters describing the message, while dividing the parameters into static parameters and dynamic parameters, and a requesting unit for requesting the policy manager to acquire a group of policies allocated to the static parameters using the static parameters.

Growing community of inventors

Kawasaki, Japan

Ikuya Morikawa