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| Number | Title | Issue Date |
| 7207060 | Method, system and computer program product for secure ticketing in a communications device Method, system and computer program product for secure ticketing in a communications device. In particular, the method, system and computer program product utilizes cryptography and an external, read-write security element to securely transmit and store critical dat... | 04/17/2007 |
| 7207067 | Enforcing data protection legislation in Web data services A system and method are provided for enabling Web services to enforce multiple countries' data protection laws and regulations during data collection, data processing storage and data transfer. The system maintains a dynamic list of countries or entities that have b... | 04/17/2007 |
| 7206408 | Countermeasure method in an electronic component using a dynamic secret key cryptographic algorithm A countermeasure method in a first electronic component communicating with a second electronic component uses a secret key K[0] cryptographic algorithm A of size k. The countermeasure implementation employs a systematic and regular evolution of K[i] by a function K[... | 04/17/2007 |
| 7206410 | Circuit for the inner or scalar product computation in Galois fields A circuit for computing the inner of scalar product of two vectors in a finite Galois field defined by a generator polynomial, wherein each vector includes at least two elements belonging to said finite field, comprises one or more look-up tables storing digital wor... | 04/17/2007 |
| 7206940 | Methods and systems providing per pixel security and functionality Various described embodiments provide for per-pixel functionality in connection with pixel data that is processed by a video card for rendering on a display monitor. That is, pixel data that is associated with individual pixels that are to be rendered on a display m... | 04/17/2007 |
| 7201326 | Information processing device An object of the present invention is to prevent secret information that is being internally processed from being inferred through operational information of a secured device, including the current consumption information. One solution is provided by an information ... | 04/10/2007 |
| 7203317 | System for enabling lazy-revocation through recursive key generation A plurality of users may have access to a file. The file is encrypted with a key. Access for a user to the file is revoked. A new key is generated from the current key of the file in response to said revocation, and the file is encrypted with the new key. ... | 04/10/2007 |
| 7203834 | Method of updating encryption keys in a data communication system The invention discloses a method of updating, in nodes on both ends of a secure link, the encryption key they share to encrypt and decrypt data. When having to transmit data from one of the nodes towards its peer remote node, a data base in the forwarding node, is f... | 04/10/2007 |
| 7200758 | Encapsulation of a TCPA trusted platform module functionality within a server management coprocessor subsystem A system for executing cryptographic services on a baseboard management controller separated from a main processor, with the baseboard management controller having isolated execution and memory with respect to the main processor. Cryptographic information is communi... | 04/03/2007 |
| 7200754 | Variable expiration of passwords A method of providing variably expiring passwords can include determining a complexity level for a password. Based upon the determined complexity level, an expiration duration can be calculated for the password. The password can be deactivated at a time determined b... | 04/03/2007 |
| 7200233 | System and method for fast data encryption/decryption using time slot numbering A system for fast data encryption/decryption is provided. The system includes a transmitter system having a transmitter direct digital synthesizer (DDS). The DDS includes at least three transmitter pseudo-noise (PN) component code generators PNx, PNy... | 04/03/2007 |
| 7200225 | Elliptic curve point ambiguity resolution apparatus and method An apparatus for operating a cryptographic engine may include a key generation module for creating key pairs for encrypting substantive content to be shared between two users over a secured or unsecured communication link. The key generation module may include a poi... | 04/03/2007 |
| 7200549 | Method and equipment for encrypting/decrypting physical characteristic information, and identification system utilizing the physical characteristic information A cryptographic method and equipment decrypting a cryptographic key by generating an auxiliary code based on a randomly determined numeric key and including a result of encryption into a cryptogram. Upon decryption, the cryptographic key is restored using the numeri... | 04/03/2007 |
| 7200747 | System for ensuring data privacy and user differentiation in a distributed file system A security module is configured to provide an owner the capability to differentiate between users. In particular, the security module is configured to generate an asymmetric read/write key pair for respectively decrypting/encrypting data for storage on a disk. The o... | 04/03/2007 |
| 7197526 | Method and apparatus for calculating the remainder of a modulo division A non-iterative technique for calculating the remainder of modulo division, which requires significantly fewer operations than the traditional iterative technique for the same calculation. The number of calculations required in the present invention is independent o... | 03/27/2007 |
| 7197142 | System and methods for a vernam stream cipher The invention discloses a cryptographic system and consisting of three methods: a cryptographic Vernam stream cipher that permits software programs on separate computers to encrypt and decrypt information; a cryptographic keyed one-way hash that ensures the integrit... | 03/27/2007 |
| 7197528 | Jacobian group element adder An objective is to obtain a Jacobian group element adder that can calculate addition in a Jacobian group of a Cab curve at a high speed, and can enhance practicality of the Cab curve. An algebraic curve parameter file A 10, and Gr... | 03/27/2007 |
| 7197141 | RSA cryptographic processing apparatus for IC card Disclosed is an RSA cryptographic processing apparatus capable of performing the fast operating function. A modular multiplication operation or a modular exponentiation operation, i.e., an RSA cryptographic operation, is selectively performed according to a control ... | 03/27/2007 |
| 7194088 | Method and system for a full-adder post processor for modulo arithmetic A full-adder post processor performs modulo arithmetic. The full-adder post processor is a hardware implementation able to calculate A mod N, (A+B) mod N and (A−B) mod N. The processor includes a full adder able to add the operands A and B while modulo reduction i... | 03/20/2007 |
| 7194089 | Method for reducing a value modulo a shared secret A method is provided for reducing a known value modulo a shared secret value among network devices exchanging messages in a network. The reduction results in a share of reduced value for each network device of a reduced value. Each network device has its share of kn... | 03/20/2007 |
| 7194092 | Key-based secure storage Secure storage for downloaded content on a subscriber computer is keyed to a trusted digital rights management operating system, a trusted application, a trusted user or a combination thereof. A one-way hash function is applied to a seed supplied by an application t... | 03/20/2007 |
| 7194618 | Encryption and authentication systems and methods In a disclosed method for authenticating a digital signature key, a record is prepared that includes an integrated combination of indicia uniquely corresponding to the key, and indicia of a covenant not to repudiate any digital signature made with the key except und... | 03/20/2007 |
| 7194763 | Method and apparatus for determining authentication capabilities A method is disclosed for determining the authentication capabilities of a supplicant before initiating an authentication conversation with a client, for example, using Extensible Authentication Protocol (EAP). In one aspect, the method provides for sending, to a su... | 03/20/2007 |
| 7194630 | Information processing apparatus, information processing system, information processing method, storage medium and program A provider side apparatus provides original digital data together with a digital signature generated by the provider side apparatus, the digital signature detecting whether the original digital data was falsified or detecting a change level given to the original dig... | 03/20/2007 |
| 7194621 | Method and apparatus for encrypting data communicated between a client and a server that use an unencrypted data transfer protocol Techniques for securing data in communications between a client and server using an unencrypted transfer protocol, which does not encrypt a payload defined by the transfer protocol, include selecting a subset from a set of data to be communicated in a particular pay... | 03/20/2007 |
| 7194442 | System and method for automated, iterative development negotiations An automated negotiations engine for iterative, multivariate negotiations of developments of products and programs which stores each set of terms proposed at each iteration to form the basis of the system of record. Active templates created using the present inventi... | 03/20/2007 |
| 7194498 | Higher radix multiplier with simplified partial product generator A circuit and methodology for higher radix multiplication with improved partial product generation. The invention relates to the design of a high precision multiplier for an arithmetic unit of a digital processor. ... | 03/20/2007 |
| 7190790 | Multiple module encryption method The present invention proposes an encryption/decryption method able to resist against various attack strategies such as Simple Power Analysis, Timing Analysis or Differential Power Analysis. The method is carried out by a plurality of encryption/decryption modules a... | 03/13/2007 |
| 7191333 | Method and apparatus for calculating a multiplicative inverse of an element of a prime field Techniques for implementing a digital signature algorithm in electronic computer hardware include computing the multiplicative inverse of a particular integer modulo a prime modulus by computing a first quantity modulo the prime modulus. The first quantity substanti... | 03/13/2007 |
| 7190789 | Method and apparatus for finite field basis conversion A method and systems provided for basis conversion in a cryptographic system. The method comprises the steps of a first correspondent transmitting an element represented in the first basis to an intermediate processor, the intermediate processor converting the eleme... | 03/13/2007 |
| 7188362 | System and method of user and data verification A system and method of authenticating users and data. One embodiment of the invention includes a smart card that digitally signs a message in response to authenticating biometric information that is provided by a user. The smart card may include a random number gene... | 03/06/2007 |
| 7187772 | Anonymous transactions based on distributed processing An entity that desires to engage in anonymous transactions first generates a transaction identification that does not uniquely identify the entity. Additionally, the entity splits an entity identification uniquely associated with the entity into a plurality of secre... | 03/06/2007 |
| 7187770 | Method and apparatus for accelerating preliminary operations for cryptographic processing A method and apparatus for cryptographic data processing, includes determining a first modulus having up to a first number of binary digits. A large integer is received which has up to a second number of binary digits that is greater than the first number of binary ... | 03/06/2007 |
| 7188358 | Email access control scheme for communication network using identification concealment mechanism An email access control scheme capable of resolving problems of the real email address and enabling a unique identification of the identity of the user while concealing the user identification is disclosed. A personalized access ticket containing a sender's identifi... | 03/06/2007 |
| 7185193 | Person authentication system, person authentication method, and program providing medium A person authentication system includes a person identification authority. In the system, a service provider, a user device, or the like performs person authentication by acquiring a template from a person identification certificate created by the person identificat... | 02/27/2007 |
| 7185160 | Recording device for writing data including expiration time data To make content irreproducible in a recording device after a set expiration time, the recording device has a read/write unit for reading and writing data on a recording unit, the read/write unit having electric power supplied from an external power source, a clock c... | 02/27/2007 |
| 7184751 | System for detecting, tracking, and translating changing identification codes Disclosed herein are systems, apparatus and methods for (1) detecting codes assigned to utility meters that have frequently changing codes and (2) translating codes between the central data acquisition system that contains a fixed identification code for each utilit... | 02/27/2007 |
| 7184551 | Public key cryptography using matrices The invention provides techniques for secure messages transmission using a public key system to exchange secret keys. A first entity creates public and private keys by generating a product n of two large, randomly chosen prime numbers, and then generating random mat... | 02/27/2007 |
| 7184547 | Authenticating or signature method with reduced computations Authentication and signature process with reduced number of calculations. The process involves a first entity called the “prover”, which possesses a public key v and a secret key s, these keys verify the relation v=s−t (mod n), where | 02/27/2007 |
| 7181621 | Methods and device for digitally signing data Methods and device for digitally signing documents by using a portable device that encodes a signature string to sound. The acoustic signature string may be transmitted and then decoded back into digital data. The signature string may be further processed to verify ... | 02/20/2007 |
