Patent application number | Description | Published |
20110296188 | AUTHENTICATION DEVICE, AUTHENTICATION METHOD, PROGRAM, AND SIGNATURE GENERATION DEVICE - Provided is an authentication device including a key setting unit for setting sεK | 12-01-2011 |
20110296189 | AUTHENTICATION DEVICE, AUTHENTICATION METHOD, PROGRAM, AND SIGNATURE GENERATION DEVICE - Provided is an authentication device including a key setting unit for setting a multi-order polynomial u | 12-01-2011 |
20120233704 | INFORMATION PROCESSING APPARATUS, KEY GENERATION APPARATUS, SIGNATURE VERIFICATION APPARATUS, INFORMATION PROCESSING METHOD, SIGNATURE GENERATION METHOD, AND PROGRAM - Provided is an information processing apparatus for realizing an electronic signature system of the MPKC signature method capable of safety certification with respect to chosen-message attack. An information processing apparatus including a first inverse transformation unit that transforms an element y of a finite ring K | 09-13-2012 |
20130089201 | AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND PROGRAM - Provided is an authentication device including a key holding unit for holding L (L≧2) secret keys s | 04-11-2013 |
20130219185 | AUTHENTICATION DEVICE, AUTHENTICATION METHOD, PROGRAM, AND SIGNATURE GENERATION DEVICE - Provided is an authentication device including a key setting unit for setting a multi-order polynomial u | 08-22-2013 |
20130251144 | ENCRYPTION PROCESSING DEVICE, ENCRYPTION PROCESSING METHOD, AND PROGRAM - A reduction in the size of encryption processing configuration applying generalized Feistel structures is achieved. The encryption processing configuration applies a generalized Feistel structure for dividing and inputting data into multiple lines, and repeatedly executing data transformation processing applying a round function on the data transferred to each line, and during the execution cycle of a matrix operation by a matrix operation executing unit for executing linear transformation processing applying a matrix on the data in a first line, an operation is executed on the matrix operation processing data from the initial cycle and data in a second line. This configuration enables a register to be used for both the storage of the data for the second line and the storage of the results of the matrix operation on the first line of data in progress, a reduction in the total number of registers, and thus a reduction in size. | 09-26-2013 |
20130297930 | AUTHENTICATION DEVICE, AUTHENTICATION METHOD, PROGRAM, AND SIGNATURE GENERATION DEVICE - Provided is an authentication device including a key setting unit for setting sεK | 11-07-2013 |
20130339753 | ENCRYPTION PROCESSING DEVICE, ENCRYPTION PROCESSING METHOD, AND PROGRAM - Miniaturization of an encryption processing configuration is achieved. Included is an encryption processing unit configured to divide and input configuration bits of data to be data processed into a plurality of lines, and to repeatedly execute data conversion processing of data for each line, wherein the encryption processing unit includes an F function execution unit to input data from one line configuring the plurality of lines and generate converted data, an XOR calculation unit to execute an XOR calculation with other lines of data corresponding to the output from the F function, an intermediate data storage register to store intermediate data during the process of generating converted data in the F function execution unit, and an inverse calculation executing unit to calculate input data regarding the F function execution unit on the basis of the data stored in the intermediate storage register. The input values for the F function execution unit are calculable by the inverse calculation in the inverse calculation executing unit, which enables a reduction in registers for storing this data. | 12-19-2013 |
20130343546 | ENCRYPTION PROCESSING DEVICE, ENCRYPTION PROCESSING METHOD, AND PROGRAMME - An encryption processing device including an encryption processing part configured to divide configuration bits of data to be data processed into plural lines, and to input, and to repeatedly execute data conversion processing applying a round function to each line of data as a round calculation; and a key scheduling part configured to output round keys to a round calculation executing unit in the encryption processing part. The key scheduling part is a replacement type key scheduling part configured to generate plural round keys or round key configuration data by dividing a secret key stored beforehand into plural parts. The plural round keys are output to a round calculation executing unit sequentially executing in the encryption processing part such that a constant sequence is not repeated. The encryption processing configuration has a high level of security and a high level of resistance to repeated key attacks or other attacks. | 12-26-2013 |
20140003603 | DATA PROCESSING DEVICE, DATA PROCESSING METHOD, AND PROGRAM | 01-02-2014 |
20140068788 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, PROGRAM AND CLIENT TERMINAL - There is provided an information processing apparatus including a processing request acquisition unit configured to sequentially acquire a plurality of processing requests from a user, and an authentication execution unit configured to distribute and execute user authentication processing according to a timing of acquiring the plurality of processing requests. | 03-06-2014 |
20140075199 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - There is provided an information processing apparatus including a key selection section configured to select one out of a plurality of different secret keys, in a public key authentication scheme or a digital signature scheme in which each of the plurality of secret keys exists for one public key registered in a verifier, and a process execution section configured to execute, by using the secret key selected by the key selection section, an authentication process with the verifier by the public key authentication scheme or a digital signature generation process to the verifier by the digital signature scheme. | 03-13-2014 |
20140075201 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - There is provided an information processing device including a distribution control unit configured to cause one or two external devices to distributively perform a repetitive process in a process for signature or authentication in which the repetitive process is included, and a processing unit configured to perform the process for signature or authentication using a processing result of each of the external devices. | 03-13-2014 |
20140122894 | PRINT MEDIUM, CARD CREATION METHOD, AND PROGRAM - There is provided a print medium, whereon a public key used for authentication in a public-key authentication scheme is displayed as character information. | 05-01-2014 |
20140122899 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, COMPUTER PROGRAM, AND INFORMATION PROCESSING SYSTEM - There is provided an information processing apparatus including circuitry configured to generate, in a state in which a function F which can calculate a same result for a plurality of different values x | 05-01-2014 |
20140192981 | INFORMATION PROCESSING APPARATUS, SIGNATURE GENERATION APPARATUS, INFORMATION PROCESSING METHOD, SIGNATURE GENERATION METHOD, AND PROGRAM - Provided is an information processing apparatus including a random number generation unit configured to generate a pair of random numbers from a seed, a message generation unit configured to generate a message based on a pair of multi-order multivariate polynomials F=(f | 07-10-2014 |
20140208110 | INFORMATION PROCESSING APPARATUS, SIGNATURE GENERATION APPARATUS, SIGNATURE VERIFICATION APPARATUS, INFORMATION PROCESSING METHOD, SIGNATURE GENERATION METHOD, AND SIGNATURE VERIFICATION METHOD - Provided is an information processing apparatus including a message generation unit configured to generate a message based on a pair of quadratic multivariate polynomials F=(f | 07-24-2014 |
20140211940 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM - Provided is an information processing apparatus including a binary random number generation unit configured to generate a binary random number string expressed with binary numbers of M bits (where M≧2), and a ternary number string generation unit configured to generate a ternary number string by grouping the binary random number string in units of k bits and generating binary number strings of the k bits and by expressing the binary number strings of the k bits with ternary numbers of L symbols (where L is a maximum integer satisfying 3 | 07-31-2014 |
20140215222 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - Provided an information processing apparatus including a number generation unit configured to generate numbers used in coefficients of terms included in a pair of multi-order multivariate polynomials F=(f | 07-31-2014 |
20140223193 | SIGNATURE VERIFICATION APPARATUS, SIGNATURE VERIFICATION METHOD, PROGRAM, AND RECORDING MEDIUM - A signature verification apparatus including a signature acquisition unit configured to acquire a digital signature including first information generated based on a pair of multi-order multivariate polynomials F=(f | 08-07-2014 |
20140359727 | INFORMATION PROCESSING APPARATUS, VERIFICATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, VERIFICATION PROCESSING METHOD, AND PROGRAM - Provided is An information processing apparatus including a processing unit configured to transmit commitment information including identification information on a verification processing apparatus to the verification processing apparatus, generate response information used for the verification processing apparatus to execute a process related to verification based on challenge information transmitted from the verification processing apparatus, and transmit the response information to the verification processing apparatus or configured to transmit the commitment information to the verification processing apparatus, generate second challenge information including the identification information based on first challenge information transmitted from the verification processing apparatus, generate the response information based on the generated second challenge information, and transmit the response information to the verification processing apparatus. | 12-04-2014 |
20140365546 | ARITHMETIC OPERATION DEVICE, CONTROL METHOD, AND PROGRAM - Provided is an arithmetic operation device including a plurality of shift registers each constituted by first to (N+1) | 12-11-2014 |
20150256342 | AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND PROGRAM - An authentication device includes circuitry that holds L (L≧2) secret keys s | 09-10-2015 |
Patent application number | Description | Published |
20090075301 | Diagnostic Marker - A diagnostic marker is composed of particles that have a diameter of from 1 nm to 100 μm, the particles possessing on their surfaces a site that has a high specific bonding ability to a specific antigen residing on the mucosa of digestive cancers and a site that has a low bonding ability to the mucosa of digestive organs, and further incorporating an identification material. | 03-19-2009 |
20100179283 | SILICON-CONTAINING COMPOUND, CURABLE COMPOSITION AND CURED PRODUCT - A silicon-containing compound of formula (1), and a curing composition containing a silicon-containing compound of formula (1) wherein Z is hydrogen, a silicon-containing compound of formula (1) wherein Z is C2-C4 alkenyl or alkynyl and a hydrosilylation catalyst. The composition has excellent handling and curing properties and provides a cured product with excellent heat resistance and flexibility. | 07-15-2010 |
20120126435 | CURABLE COMPOSITION FOR SEMICONDUCTOR ENCAPSULATION - Provided are a curable composition for semiconductor encapsulation which produces a cured product that is excellent in heat resistance, electrical insulation properties at high temperatures, flexibility and heat cycle resistance, and a semiconductor device encapsulated by curing this curable composition. Specifically, there is provided a curable composition for semiconductor encapsulation containing, as component (A), a particular SiH group-containing siloxane compound; as component (B), a particular vinyl group-containing siloxane compound; as component (C), a compound having at least three SiH groups or at least three vinyl groups; and as component (D), a hydrosilylation catalyst. | 05-24-2012 |
20130018132 | COMPOUND HAVING HINDERED AMINE BACKBONE, AND RESIN COMPOSITIONAANM Hiwatari; Ken-ichiroAACI TokyoAACO JPAAGP Hiwatari; Ken-ichiro Tokyo JPAANM Saiki; TomoakiAACI TokyoAACO JPAAGP Saiki; Tomoaki Tokyo JP - A compound has excellent thermal resistance and compatibility with resins, improves thermal resistance of resins, and specifically provides a compound represented by the following general formula (1). In formula (1), R | 01-17-2013 |