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| Number | Title | Issue Date |
| 7231521 | Scheme for authentication and dynamic key exchange A scheme for authentication, dynamic key generation and exchange provides means for authentication of mobile nodes (22) and generation of per session, per node, encryption keys for encrypting/decrypting communications between a mobile node (22) and an ... | 06/12/2007 |
| 7231048 | Key sharing system, public key cryptosystem, signature system, key sharing apparatus, encryption apparatus, decryption apparatus, signature apparatus, authentication apparatus, key sharing method, encryption method, decryption method, signature method, authentication method, and programs A key sharing system is disclosed which uses a public key XεGF(n) (2≦X | 06/12/2007 |
| 7231659 | Entity authentication in a shared hosting computer network environment Apparati, methods, and computer readable media for authenticating an entity (9) in a shared hosting computer network (4) environment. A service provider computer (2) contains a plurality of entity sites (5). Connected to the service provi... | 06/12/2007 |
| 7231519 | Secure inter-node communication Secure inter-node communication is disclosed. The hardware of the first node sends a key, identification of the first node, and identification of a second node to hardware of the second node. The hardware of the second node receives the key and the identifications. ... | 06/12/2007 |
| 7228421 | Technique for generating control messages with reason information between nodes in a data network A technique is disclosed for generating control messages to be transmitted from a first network device to a second network device in a data network. A first control message to be generated at the first network device is determined. Reason information relating to at ... | 06/05/2007 |
| 7228430 | Security system for preventing a personal computer from being used by an unauthorized people A security system for preventing unauthorized use of a computer device. An extractable security piece includes an extractable main private key and a main PC public key. A PC security area which is a non-extractable part of the computer device includes a PC private k... | 06/05/2007 |
| 7228423 | Apparatuses and methods for decrypting encrypted data and locating the decrypted data in a memory space used for execution An encrypted-data decrypting apparatus that provides enhanced security protection for programs and data while they are in the processes of decryption to execution after having been encrypted. When a decrypted partial program needs to be loaded into the shared memory... | 06/05/2007 |
| 7228488 | System and method for secure communication over packet network A system capable of supporting secure communication over a packet-based network is provided. The system includes a transmit terminal adapted to transmit information. A secure terminal relay is coupled to the transmit terminal and configured to receive the informatio... | 06/05/2007 |
| 7227956 | Simple encrypted transmission system suitable for intermittent signals A signal transmitted from a first device to a second device is encrypted using an encryption key generated from a preceding part of the signal itself. The signal is decrypted in the second device using a decryption key generated from a preceding part of the received... | 06/05/2007 |
| 7228422 | Packet transmission/reception device A packets sending/receiving apparatus, comprising: authentication and key exchange means; encryption means for producing an encryption sending data; sending condition setting management means for producing sending condition setting information for setting sending co... | 06/05/2007 |
| 7228419 | Information recording medium, information processing apparatus and method, program recording medium, and information processing system A ticket issuing device issues a highly convenient electronic ticket. The electronic ticket is formed of validity data and information to be validated. The validity data includes a secret key to which an algorithm whose presence is verifiable without being exposed i... | 06/05/2007 |
| 7225329 | Enhanced CSU/DSU (channel service unit/data service unit) In an embodiment, a communication node coupled to a first data network and a second data network is disclosed. The first data network is a wide area data network. The communication node includes a first data interface to the first data network, a second data interfa... | 05/29/2007 |
| 7225334 | Secure method for communicating and providing services on digital networks and implementing architecture The present invention is a method to provide maximum security to transactions and communications made on a digital network with a device comprising a card reader. The device is made of a microphone, a speaker, a dialing device, electronics circuitry, digital ports t... | 05/29/2007 |
| 7225464 | Method for verifying the identity of a user for session authentication purposes during Web navigation A network-based software application for enabling remote authentication of a user during a network session has a server portion for serving session validation information and additional user information when queried, a client portion for configuring and submitting p... | 05/29/2007 |
| 7225331 | System and method for securing data on private networks A system and method for protecting data transmitted across a private network is disclosed. A secure channel is established so that the client computer can securely transmit a password to the server computer. Once the password has been transmitted, future transmissio... | 05/29/2007 |
| 7224805 | Consumption of content A method and apparatus for consumption of content (1) is described in which a licensor is able to exercise control over consumption based on a personal identity in the form of a set of binding attributes (15). The control may be exercised for a number ... | 05/29/2007 |
| 7224682 | Terminal apparatus for enabling a plurality of different communication systems to coexist The present invention provides a terminal apparatus connectable to a communication network capable of comprising a plurality of different communication systems. The terminal apparatus comprises a coexistence header generation section of generating at least a portion... | 05/29/2007 |
| 7225256 | Impersonation in an access system The present invention pertains to a system for managing network access to resources that allows a first entity to impersonate a second entity. In one embodiment, the first entity can impersonate the second entity without knowing the second entity's password and/or w... | 05/29/2007 |
| 7221762 | Authenticated ID-based cryptosystem with no key escrow A method and system are provided for determining a shared secret between two entities in a cryptosystem. A first random secret is selected that is known to the first entity and unknown to the second entity. A first intermediate shared secret component is determined ... | 05/22/2007 |
| 7222151 | Technique for communication with mobile data processing devices by way of mobile software agents A techinque for communicating with a mobile data processing device by way of a mobile software agent. Any application, such as a banking application which permits cash withdrawals from ATMs, can be represented as a mobile software agent. The mobile software agent is... | 05/22/2007 |
| 7222240 | Token for storing installation software and drivers A “dual” personal key/token is disclosed. The “dual” personal key is useful for installing drivers and other command interfaces which allow the personal key to be coupled to and used with a host computer. In a first embodiment, the personal key operates as a... | 05/22/2007 |
| 7222234 | Method for key agreement for a cryptographic secure point—to—multipoint connection A method for key agreement for a cryptographically secured point-to-multipoint connection between a server and a plurality of clients includes altering, as a function of an identifier included in a first server message, a sequence of messages in a handshake initiati... | 05/22/2007 |
| 7221757 | Method and system for accelerated data encryption An encrypted private session key for a private-key encryption method is quickly exchanged between a first device and a second device by computing encryption acceleration data using a public key for a public-key encryption method. The encryption acceleration data and... | 05/22/2007 |
| 7221758 | Practical non-malleable public-key cryptosystem The present scheme improves the security of encrypted data or information by using of a practical public-key cryptosystem that is able to resist adaptive attacks. The disclosed scheme does not leak any information about the secret of the used key. Therefor the schem... | 05/22/2007 |
| 7219237 | Read- and write-access control circuits for decryption-key memories on programmable logic devices Described are various methods and systems for preventing unauthorized access to decryption keys on programmable logic devices. In one example, a key memory can operate in a secure mode or a non-secure mode. The non-secure mode allows decryption keys to be read or wr... | 05/15/2007 |
| 7218733 | Encryption method, program for encryption, memory medium for storing the program, and encryption apparatus, as well as decryption method and decryption apparatus The present invention relates to a cryptosystem. A keystream table [Ks] is a virtual data space. Every data of 1 byte in a secondary ciphertext E2 provides a vector directional component IR. The data Ks (IR) in the keystream table [Ks] designated by the d... | 05/15/2007 |
| 7218735 | Cryptography method on elliptic curves A cryptography method for generating probabilistic digital signatures and/or for a key-exchange a protocol and/or for an encryption algorithm is based on the use of a public key algorithm on abnormal binary elliptic curve, such as a Koblitz curve. A point P (x, y) i... | 05/15/2007 |
| 7218406 | Mailbox printing services for information appliances A system and method is provided for printing a document stored on a remote computer using an information appliance. The method includes providing a connection between an information appliance and a remote computer, wherein the remote computer stores one or more docu... | 05/15/2007 |
| 7216237 | System and method for trusted communication A method of establishing a trusted path of data and a method of verifying the integrity of data presented for signing to a user of the personalized device in a public-key cryptographic scheme. The method comprises establishing a trusted path between the user and sec... | 05/08/2007 |
| 7216231 | Method and system for establishing a wireless communication link A method of establishing a secure communications link between a user communications device and a first service communications device; the method comprises the steps of initiating a communications link using a first communications protocol between the user communicat... | 05/08/2007 |
| 7215773 | Key validation scheme A method of providing improved security in a communication system used to transfer information between at least a pair of correspondents. The communication between the correspondents generally comprises steps of generating key pairs in accordance with the arithmetic... | 05/08/2007 |
| 7215780 | Method and apparatus for elliptic curve scalar multiplication The applicants have recognized an alternate method of performing modular reduction that admits precomputation. The precomputation is enabled by approximating the inverse of the truncator T, which does not depend on the scalar. The applicants have also recogni... | 05/08/2007 |
| RE39622 | System and method for authentication, and device and method for authentication In authentication using a plurality of cipher keys, the authentication time is shortened. In the case that an encipher key to encipher key are required to take an access to each area out of the area to area in a memory of an IC card, a plurality of areas to have an ... | 05/08/2007 |
| 7213145 | Method and apparatus for secure internet protocol communication in a call processing system Techniques for providing secure communications between two or more end units of a call processing system via a call complex or other communication system switch. The end units each generate a set of session key lists including a stack-based session key list for each... | 05/01/2007 |
| 7213149 | Message authentication For the authentication of messages communicated in a distributed system from an originator to a destination a keyed-hashing technique is used according to which data to be authenticated is concatenated with a private (secret) key and then processed to the cryptograp... | 05/01/2007 |
| 7212637 | Cartridge validation with radio frequency identification Validation of printer cartridges using a unique identifier from an RFID tag, a serial number or identifier from a cartridge, and a seed to generate a reproducible key are described. The key is written to non-volatile memory of the RFID tag. The parameters for genera... | 05/01/2007 |
| 7212817 | Partitioning a database keyed with variable length keys Systems, methods, and devices for a database are provided. One database embodiment includes a set of executable instructions operable on the database. One or more database partitions are provided, each having a defined key range. The set of executable instructions i... | 05/01/2007 |
| 7213144 | Efficient security association establishment negotiation technique A Security Association establishment negotiation technique includes forwarding identifying information from a Mobile Node via a first interface to a first network element. Negotiations are then initiated between the first network element and a second network element... | 05/01/2007 |
| 7209559 | Method and apparatus for securely distributing large digital video/data files with optimum security A method, apparatus, and article of manufacture provide the ability to securely distribute digital media content from a first entity to a second entity through an intermediate entity. A studio token, comprising information utilized to generate a first key, is genera... | 04/24/2007 |
| 7209562 | Method and apparatus for decrypting encrypted data stored on a record carrier The invention relates to a method for decrypting encrypted data stored on a record carrier, to a corresponding method for encrypting data and to corresponding apparatuses. In order to provide a high level of protection for data stored on a record carrier and to prev... | 04/24/2007 |
