Abstract: According to an embodiment, a communication device includes a cryptographic communication unit, a first communicating unit, and a control unit. The cryptographic communication unit is configured to perform cryptographic communication with an external device via a first network. The first communicating unit is configured to perform communication with a key generating device via a second network, the key generating device being configured to generate a cryptographic key to be used in the cryptographic communication. The control unit is configured to perform control to transmit an address registration request containing address information to the key generating device via the first communicating unit when a predetermined specific request is issued from among requests used in the cryptographic communication.

Abstract: According to an embodiment, a communication device includes an acquirer and a determiner. The acquirer is configured to acquire a first history value for each of one or more applications that use an encryption key. The first history value indicates a history value of a volume of the encryption key used by the each of one or more applications. The determiner is configured to determine a volume of the encryption key to be assigned to the corresponding application, according to the first history value.

Abstract: According to an embodiment, a communication device includes a storage unit and a determiner. The storage unit is configured to store therein a degree of priority and a first requested volume for each of one or more applications that use an encryption key. The first requested volume indicates a volume of the encryption key requested by the each of applications. The determiner is configured to determine a volume of the encryption key to be assigned to each application in such a way that a first total value that is a total of the volume of the encryption key to be assigned to the application is equal to or smaller than a second total value that is a total value of a volume of the encryption key assignable and that the encryption key of the first requested volume is preferentially assigned to the application whose degree of priority is higher.

Abstract: According to one embodiment, a first shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of an intermediate result of a computation of Montgomery multiplication result z and calculates a first shift amount. A second shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of redundant-binary-represented integer x and calculates a second shift amount. An addition/subtraction unit calculates the intermediate result by adding/subtracting, with respect to the intermediate result which has been bit-shifted by the first shift amount, the integer p, and the integer y which has been bit-shifted by the second shift amount. An output unit outputs, as the Montgomery multiplication result z, the intermediate result when the sum of the first shift amounts is equal to the number of bits of the integer p.

Abstract: According to an embodiment, a communication apparatus includes a sharing processing unit, an extension unit, and a communication unit. The sharing processing unit shares a first cryptographic key with an external apparatus connected via a link, and further generates a second cryptographic key and shares the second cryptographic key with the external apparatus through secret communication using the first cryptographic key. The extension unit generates an extended key by extending a length of the second cryptographic key. The communication unit transmits the extended key to a first application which communicates with a second application to which the external apparatus provides the second cryptographic key.

Abstract: According to an embodiment, a communication device includes a cryptographic communication unit, a first communicating unit, and a control unit. The cryptographic communication unit is configured to perform cryptographic communication with an external device via a first network. The first communicating unit is configured to perform communication with a key generating device via a second network, the key generating device being configured to generate a cryptographic key to be used in the cryptographic communication. The control unit is configured to perform control to transmit an address registration request containing address information to the key generating device via the first communicating unit when a predetermined specific request is issued from among requests used in the cryptographic communication.

Abstract: The present invention provide a process for producing a polarizing laminate film comprising a base film, a primer layer and a polarizer layer in order, which comprises the following steps, in order, a primer layer formation step of forming a primer layer by applying a primer solution to one surface of a base film, a polyvinyl alcohol resin layer formation step of forming a polyvinyl alcohol resin layer on the primer layer to obtain a laminate film comprising, in order, the base film, the primer layer and a polyvinyl alcohol resin layer, a stretching step of stretching the laminate film, and a dyeing step of dyeing the polyvinyl alcohol resin layer of the laminate film with a dichroic dye to obtain a polarizer layer, wherein a content of an epoxy type cross-linker in the primer solution is less than 0.1% by weight.

Abstract: To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor. where R1 and R2 independently represent any one of a hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group, and R3, R4, R5, R6, R7, R8, R9 and R10 independently represent any one of a hydrogen atom, halogen atom, cyano group, nitro group, amino group, hydroxyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group.

Abstract: An electrophotographic photoconductor contains a photosensitive layer and a conductive substrate, wherein the photosensitive layer is disposed on the conductive substrate, and the photosensitive layer is a single layer containing a charge generating material, an electron transporting material expressed by the General Formula (1) and a hole transporting material expressed by the General Formula (2):

Abstract: According to one embodiment, a first shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of an intermediate result of a computation of Montgomery multiplication result z and calculates a first shift amount. A second shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of redundant-binary-represented integer x and calculates a second shift amount. An addition/subtraction unit calculates the intermediate result by adding/subtracting, with respect to the intermediate result which has been bit-shifted by the first shift amount, the integer p, and the integer y which has been bit-shifted by the second shift amount. An output unit outputs, as the Montgomery multiplication result z, the intermediate result when the sum of the first shift amounts is equal to the number of bits of the integer p.

Abstract: An object of the present invention is to provide an image forming apparatus containing an electrophotographic photoconductor, a charging unit, an exposing unit, a developing unit, a transfer unit and a cleaning unit, wherein the electrophotographic photoconductor contains a support and at least a photosensitive layer disposed on the support, wherein the photosensitive layer contains a charge generating material and a compound expressed by the following Structural Formula (1), and wherein, in the Structural Formula (1), “R1” and “R2” may be identical to each other or different, and represent any one of hydrogen atom, alkyl group which may be substituted, cycloalkyl group which may be substituted and aralkyl group which may be substituted.

Abstract: To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor.

Abstract: An electrophotographic photoreceptor, comprising: an electroconductive substrate; and a photosensitive layer located overlying the electroconductive substrate, wherein the photosensitive layer is a single-layered layer comprising a charge generation material and an electron transport material having the following specific formula (1): wherein the charge generation materials is a titanylphthalocyanine having a specific CuK? 1.542 ? X-ray diffraction spectrum.

Abstract: To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor. where R1 and R2 independently represent any one of a hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group, and R3, R4, R5, R6, R7, R8, R9 and R10 independently represent any one of a hydrogen atom, halogen atom, cyano group, nitro group, amino group, hydroxyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group.

Abstract: A 3,6-diphenylcarbazole compound, which has a specific formula and realizes an organic electroluminescent device having high durability and high luminous efficiency. An electroluminescent device which includes an anode; a cathode which faces the anode; and at least one layer including a luminescent layer, optionally a hole transporting layer and an electron transporting layer, which is located between the anode and the cathode, wherein the at least one layer includes the 3,6-diphenylcarbazole compound.

Abstract: The present invention provides a ?-conjugated polymer containing a repeating unit expressed by the following General Formula (I): where, in the General Formula (I), Y and Ar represent one of a substituted or unsubstituted aromatic hydrocarbon and a substituted or unsubstituted divalent group of aromatic heterocyclic ring, Y1 represents one of a substituted or unsubstituted unsaturated aliphatic hydrocarbon, a substituted or unsubstituted aromatic hydrocarbon and a substituted or unsubstituted divalent group of aromatic heterocyclic ring and R represents one of a hydrogen atom, a substituted or unsubstituted alkyl group and a substituted or unsubstituted aromatic hydrocarbon group.

Abstract: A circuit array substrate includes an optically transparent substrate, pixels having switching elements formed on the transparent substrate, gate electrode lines connected to the switching elements, the gate electrode lines being provided on a first insulation film with separating portions in the pixels, signal lines connected to the switching elements, the signal lines being provided on a second insulation film which is different from the first insulation film, and electrically conductive portions provided on the second film to electrically connect the electrode lines with the separating portions to each other. The separating portions reduce electrostatic capacitances defined between the gate electrode lines and the switching elements when the conductive portions are not connected between the separating portions.

Abstract: An aryl amine polymer is provided which contains a specific repeat unit, its use in preparing an organic semiconductor material which contains the aryl amine polymer and an additional specific compound and in the preparation of organic light emitting devices (OLED), organic thin film transistors (TFT) and so on, along with an organic TFT including a substrate, an organic semiconductor layer which contains the organic semiconductor material and is located overlying the substrate, an electrode pair of a source electrode and a drain electrode; and a third electrode.

Abstract: According to embodiments of the present invention, in a case where a ground for security is laid in difficulty in executing an inverse function operation of a trapdoor one-way function, represented by an RSA problem, even when a signature order advances, an increase of a size of a key can be inhibited. For example, when the first partial data ?i?1,L exceeding (k0+k1) bits when concatenating a random number ri of k0 bits is excluded from an input of binary operation on an input side of a signature generation function. Accordingly, a size of an operation result si of the binary operation is set to be constant at (k0+k2) bits, and, as a result, an input size (key length k bits) of an RSA signature generation function is set to be constant.

Abstract: In each stage, multiple parallel nonlinear transformation modules each perform local lower-level diffusion, then a diffusion module performs higher-level diffusion over the block width and multiple parallel nonlinear transformation modules each perform local lower-level diffusion. This operation is repeated a predetermined number of times corresponding to the number of stages. Each nonlinear transformation module is formed into the nested SPN structure by arranging alternately nonlinear transformation modules and a diffusion module. The diffusion module performs linear transformation for spreading the state of at least one bit in input data to the preceding nonlinear transformation modules to at least one bit in input data to the succeeding nonlinear transformation modules.