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| Number | Title | Issue Date |
| 8189786 | Encryption system One embodiment involves encrypting an MPEG transport stream by seeding a random number generator with a seed derived from at least a portion of the MPEG transport stream to produce a random number output. At least one program key and at least one modification key ar... | 05/29/2012 |
| 7961882 | Methods and apparatus for initialization vector pressing Methods and apparatus are provided for using explicit initialization vectors in both encryption and decryption processing. In one example, a sender generates an initialization vector, identifies cryptographic keys, encrypts data using the initialization vectors and ... | 06/14/2011 |
| 7916869 | System and method for automatic setup of a network device with secure network transmission of setup parameters using a standard remote control A system and method allows a user to automatically configure a new device on a local area network (LAN) by pressing a sequence of buttons on a conventional remote control (RC) while pointing the infrared (IR) transmitter of the RC at the new device. The button-seque... | 03/29/2011 |
| 7889867 | Method for relocating SRNS in a mobile communication system A system and method for performing SRNS relocation in a communications system transmits radio resource information including a ciphering parameter from a source RNC to a target RNC, modifies the ciphering parameter to coincide with a deciphering parameter which a us... | 02/15/2011 |
| RE41919 | Rapid decryption of data by key synchronization and indexing A satellite broadcast conditional access system with key synchronization uses indexing of an authorization stream to quickly restart the decrypting process after short carrier fades and after carrier switches. The authorization stream includes cyphered seeds and ind... | 11/09/2010 |
| 7747018 | Method and apparatus for providing a message sequence count in a security systems A security system and method of operation includes a wireless transmitter, a wireless receiver in wireless communication with the wireless transmitter, and a control panel. The transmitter transmits a wireless message, including a unique transmitter identification n... | 06/29/2010 |
| 7706537 | Method for relocating SRNS in a mobile communication system A system and method for performing SRNS relocation in a communications system transmits radio resource information including a ciphering parameter from a source RNC to a target RNC, modifies the ciphering parameter to coincide with a deciphering parameter which a us... | 04/27/2010 |
| 7697688 | Pipelined packet encapsulation and decapsulation for temporal key integrity protocol employing arcfour algorithm An apparatus includes a key mixing circuit, an input circuit, and a decapsulation circuit. The key mixing circuit generates N Wired Equivalent Privacy (WEP) seeds, N≧1, each based on a predetermined temporal key, a transmitter MAC address, and a predetermined star... | 04/13/2010 |
| 7684568 | Encrypting data in a communication network A method for communicating in a network is presented. The method includes encapsulating content from a plurality of high level data units from a high level layer to generate a stream; dividing the stream into a plurality of segments; individually encrypting at least... | 03/23/2010 |
| 7672456 | Anti-pirate method for the distribution of digital content by pro-active diversified transmission, associated transmitting device and portable receiving object The invention concerns an anti-pirate method for the distribution of digital content by pro-active diversified transmission, associated transmitter device and portable receiving object. The method, designed to make the same information (Kc) available to s... | 03/02/2010 |
| 7613300 | Content-protected digital link over a single signal line A packet based high bandwidth copy protection method is described that includes the following operations. Forming a number of data packets at a source device, encrypting selected ones of the data packets based upon a set of encryption values, transmitting the encryp... | 11/03/2009 |
| 7609837 | System and method for automatic setup of a network device with secure network transmission of setup parameters A system and method for use with local area networks (LANs) automatically configures a new device on a LAN by secure encrypted transmission of setup parameters. A remote control (RC) with an infrared (IR) transmitter contains a stored setup command and a security nu... | 10/27/2009 |
| 7480383 | Apparatus and method for scrambling high-rate data The apparatus and method for scrambling high-rate data is disclosed. The apparatus includes a first storing unit for storing a transport stream (TS) inputted from an external device; a common key (CK) generating unit for generating a CK by receiving a control word (... | 01/20/2009 |
| 7426274 | Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit A video source device includes a cipher unit. The video source device uses the cipher unit to generate cipher bits for ciphering video to be transmitted to protect the video from unauthorized copying. The video source device authenticates video receiving devices usi... | 09/16/2008 |
| 7426275 | Handling device and method of security data A handling device of security data of a vehicle includes: an in-vehicle unit having a portable unit authenticating unit, an EEPROM, a ROM, and a controller; a vehicle having the in-vehicle unit, a door locking mechanism, and a communication unit; and a portable unit... | 09/16/2008 |
| 7424116 | Method and apparatus for providing authentication in a communication system A method includes receiving an authentication request from a mobile station (401) and determining whether to forward the request to an authentication agent. When it is determined to forward the request, the request is forwarded to the authentication agent ( | 09/09/2008 |
| 7421735 | Proxy method and system for secure wireless administration of managed entities A method, system and apparatus are described for avoiding the use of a web-server or generic security when providing network administration services remotely to managed entities using wireless technology. Instead a true Proxy device, not operating as a web-server, i... | 09/02/2008 |
| 7412056 | Rolling code security system A rolling code transmitter is useful in a security system for providing secure encrypted RF transmission comprising an interleaved trinary bit fixed code and rolling code. A receiver demodulates the encrypted RF transmission and recovers the fixed code and rolling c... | 08/12/2008 |
| 7412055 | Method and system for fair exchange of user information A method and system for a fair exchange of user information over a network is disclosed. The method comprises the steps of: transmitting over the network the user information encoded in association with a hidden value selected as one of a plurality of values distrib... | 08/12/2008 |
| 7401223 | Authentication chip for authenticating an untrusted chip A trusted authentication chip for use in authenticating an untrusted authentication chip; the trusted authentication chip including a random number generator, a symmetric encryption function and two secret keys for the function, a signature function and a test funct... | 07/15/2008 |
| 7382881 | Lawful interception of end-to-end encrypted data traffic A method of facilitating the lawful interception of an IP session between two or more terminals 12,13, wherein session uses encryption to secure traffic. The method includes storing a key allocated to at least one of terminals 12,13 or to at least one ... | 06/03/2008 |
| 7370070 | Data sharing method, request processing method, program, and apparatus A data sharing apparatus shares first data with a communication partner. The data sharing apparatus obtains second data from third data by using server-aided computation, and generates fourth data to be used by the communication partner for obtaining the first data,... | 05/06/2008 |
| 7369661 | Method and apparatus for detection of loss of cipher synchronization Detecting loss of stream cipher synchronization between a transmitter and a receiver in a video processing system may be achieved by receiving, by the receiver, an encrypted video frame from the transmitter, obtaining an encrypted value for a selected pixel in the ... | 05/06/2008 |
| 7370197 | Method and system for authenticating messages A method and system for authenticating a message is described, in which the message contains a network address, at least a portion of which is a digital fingerprint. Embedded in the message is data, such as a code, that indicates the size of the digital fingerprint.... | 05/06/2008 |
| 7366917 | System and method for accessing discrete data A method for accessing discrete data includes transmitting a write command to a memory, determining whether each data following a header of the file needs to be encrypted according to a data format of a file that is to be written into the memory, transmitting the fi... | 04/29/2008 |
| 7363494 | Method and apparatus for performing enhanced time-based authentication A time-based method for generating an authentication code associated with an entity uses an authentication code generated from a secret, a dynamic, time-varying variable, and the number of previous authentication code generations within the particular time interval.... | 04/22/2008 |
| 7360688 | Intelligent credit card system A new credit card system which enables improved reading and other operations. Reading can be done in the short edge of the credit card thereby shortening the aspect ratio and size of the card reader. The reader can be electrical, reading information via contacts, or... | 04/22/2008 |
| 7362859 | Enhancement of utilization of encryption engine A method of enhancing throughput of a pipelined encryption/decryption engine for an encryption/decryption process has a predetermined number of stages and provides feedback around the stages (and of such an encryption/decryption engine) by receiving a source datablo... | 04/22/2008 |
| 7359515 | Method and apparatus for symmetric-key decryption A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plain... | 04/15/2008 |
| 7360075 | Method and apparatus for providing secure streaming data transmission facilities using unreliable protocols The invention provides a method and apparatus for transmitting data securely using an unreliable communication protocol, such as User Datagram Protocol. In one variation, the invention retains compatibility with conventional Secure Sockets Layer (SSL) and SOCKS prot... | 04/15/2008 |
| 7356146 | Method for relocating SRNS in a mobile communication system A system and method for performing SRNS relocation in a communications system transmits radio resource information including a ciphering parameter from a source RNC to a target RNC, modifies the ciphering parameter to coincide with a deciphering parameter which a us... | 04/08/2008 |
| 7352867 | Method of preventing unauthorized distribution and use of electronic keys using a key seed A method and system for generating an electronic key used in an electronic transaction can be created by executing a one-way function on a host that derives the electronic key from a key seed saved in a non-volatile storage unit of the host and a unique host identif... | 04/01/2008 |
| 7353380 | Method and apparatus for providing secure streaming data transmission facilities using unreliable protocols The invention provides a method and apparatus for transmitting data securely using an unreliable communication protocol, such as User Datagram Protocol. In one variation, the invention retains compatibility with conventional Secure Sockets Layer (SSL) and SOCKS prot... | 04/01/2008 |
| 7350069 | System and method which employs a multi user secure scheme utilizing shared keys We propose a multi user information theoretically secure scheme. Our scheme allows any two parties in a multi user system to exchange messages securely using encryption, and to sign messages. Our scheme achieves a significant saving in the number of total keys in th... | 03/25/2008 |
| 7349539 | Encoding and encrypting devices for secure scalable data streaming A device and method thereof for encoding and encrypting data. The device includes a segmenter adapted to receive the data and segment at least a portion of the data into regions, a scalable encoder adapted to scalably encode at least one of the regions into scalably... | 03/25/2008 |
| 7346581 | Copyright management apparatus, copyrighted-work distribution apparatus, and copyrighted-work distribution and receiving system A TV music broadcasting program is distributed from a distribution apparatus through a ground station and a satellite, and a musical-piece program is also distributed through a plurality of audio channels. A subscriber looks for the desired musical piece from a musi... | 03/18/2008 |
| 7343012 | Recording and playback apparatus for stream data and transmission method for stream data In transmission of stream data protected for copyright on a bus, transcription of stream data once recorded on a recording apparatus to a medium of another recording apparatus is realized. Authentication is carried out between a stream recording and playback apparat... | 03/11/2008 |
| 7337316 | Packet authentication A data packet is conveyed between servers connected to a packet network. A first server securely distributes a list of distinct numbers to one or more authorized receiving servers. Subsequently, upon receiving a packet to be transferred, the first server selects an ... | 02/26/2008 |
| 7336928 | System and method for generating a list of devices in physical proximity of a terminal This invention relates to generating a list of devices in physical proximity of each other and utilizing said list, for example, for sharing of content between a plurality of mobile devices applying individual media items such as address book entries, calendar entri... | 02/26/2008 |
| 7337470 | Method for minimizing denial of service attacks on network servers A method for providing communications network security can include receiving a round-trip network latency for a client specifying an open port duration. A port can be opened to receive a request from the client. The port can be closed when an amount of time at least... | 02/26/2008 |
