Cryptography inventions 01/07

20070019805 - System employing systematic robust error detection coding to protect system element against errors with unknown probability distributions: An error detection technique can be used with data encryption/decryption such as those implementing the Advanced Encryption Standard (AES) to protect against side-channel attacks known as Differential Fault Analysis attacks, in which the error distribution is unknown. The method uses systematic nonlinear robust error detecting codes which distribute their error-detecting... Agent: David E. Huang, Esq. Bainwood Huang & Associates LLC

20070019806 - System and method for establishing secondary channels: A method for establishing a secondary communication channel between at least two computing devices over a network medium through use of a primary channel connects a first computing device with a first telephonic unit and a second computing device with a second telephonic unit. If the two telephonic units are... Agent: Patent Documentation Center

20070019807 - Method for generating group key: A method is provided for generating a group key, including sharing a plurality of secrete keys with a plurality of nodes adjacent to a first node of the plurality of nodes, obtaining a plurality of function values using the plurality of secrete keys and a result value using the plurality... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070019808 - Substrates having a position encoding pattern: A substrate carrying a machine-readable pattern, the pattern comprising a plurality of printed shapes, local portions of the pattern uniquely encoding respective locations of the substrate, the substrate further carrying a human-recognisable printed image, wherein the human-recognisable image is masked at locations of the printed shapes of the machine-readable pattern,... Agent: Hewlett Packard Company

20070019809 - Printing system and printer with electronic signature capability and method thereof: A printing system and printer with an electronic signature capability, and a method thereof are provided. To print security documents using an electronic signature stored in a portable memory, the printing system of the invention includes a portable memory for storing an electronic signature. A memory interface connects detachably to... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070019810 - Data transmitting and receiving system, data processing apparatus and encoding communication method: A data processing apparatus, comprising: an encoding unit to encode data to be transmitted, produce header information including identification information for specifying a key enabling decoding the encoded data, encode the produced header information by using a key of a transmission destination, and add the encoded header information to the... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070019811 - Cryptographic key, encryption device, encryption/decryption device, cryptographic key management device, and decryption device: A cryptographic key 1 constituted to be freely attachable and detachable to/from a personal computer 2 encrypting and decrypting data by use of a cipher key includes: a pseudo random number generator 14 for generating a pseudo random number of a chaotic time series based on a data size of... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070014394 - Data processing method: Method for processing data, in which a Petri net is encoded, written into a memory and read and excuted by at least one instance, wherein transitions of the Petri net read from at least one tape and/or write on at least one tape symbols or symbol strings, with the aid... Agent: Vidas, Arrett & Steinkraus, P.A.

20070014396 - Encoding/decoding circuit: An encoding/decoding operation portion includes an encoding/decoding operation circuit and an avoiding path for detouring the encoding/decoding operation circuit and can select between encoding or decoding input data in the encoding/decoding operation circuit and detouring the encoding/decoding operation circuit to output the input data without change. Only one wire has... Agent: Buchanan, Ingersoll & Rooney PC

20070014395 - Invariance based concurrent error detection for the advanced encryption standard: Advanced Encryption Standard (AES) is an encryption algorithm for securing sensitive unclassified material by U.S. Government agencies and, as a consequence the de facto encryption standard for commercial applications worldwide. Performing concurrent error detection (CED) for protection of such a widely deployed algorithm is an issue of paramount importance. We... Agent: Straub & Pokotylo

20070014397 - Storage device and information processing device: A memory card, which is a storage device connectable to a terminal, includes a buffer memory in which externally-provided data is stored, a flash memory, and a controller which controls reading and writing of data from and to these memories. The controller saves a divided input data in the non-volatile... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070014400 - Cryptographic key split binder for use with tagged data elements: A cryptographic key split binder includes key split generators that generate cryptographic key splits from seed data and a key split randomizer for randomizing cryptographic key splits to produce a cryptographic key, and a process for forming cryptographic keys. Key split generators can include a random split generator for generating... Agent: Ip Strategies

20070014398 - Generating a secret key from an asymmetric private key: Embodiments of the present invention address deficiencies of the art in respect to symmetric key generation and provide a method, system and computer program product for symmetric key generation using an asymmetric private key. In one embodiment, a symmetric key generation data processing system can include a symmetric key generator... Agent: Steven M. Greenberg, Esquire Christopher & Weisberg, P.A.

20070014399 - High assurance key management overlay: A key management overlay system includes a first key management system that produces a first cryptographic key, a second key management system that produces a second cryptographic key, and a math module that implements a math model that generates a third cryptographic key based at least in part on the... Agent: Ip Strategies

20070014401 - Random number generation for encrypting cellular communications: In wireless communications, transmission devices require continuous supplies of random data for encryption processes. The invention provides a method for generating a continuos pool of truly random data with hardware that is already available in conventional CDMA phones.... Agent: Qualcomm Incorporated

20070014403 - Controlling distribution of protected content: A system for controlling distribution of protected content to portable mass storage media devices (10), the system comprising: a host application (200) for a host device (20) including: collection module (202) to collect predetermined identifiers of a portable mass storage media device (10) connected to the host device (20); a... Agent: Creative Labs, Inc. Legal Department

20070014404 - Method of reproducing transport stream in television receiver and television receiver using the same: A transport stream reproducing method and a television receiver using the same enable reproduction of a transport stream from a previous reproduction stop point. The television receiver includes a personal video recorder for storing at least one previous reproduction section of the transport stream constructed of a plurality of transport... Agent: Birch Stewart Kolasch & Birch

20070014402 - Method to detect pal colorstripe utilizing pal switch with minimal logic: A method to detect PAL colorstripe utilizing PAL-switch with minimal logic is provided. A first polarity parameter may be generated by adding an averaged U component value of a current PAL line with a first threshold value. The first polarity parameter may be utilized to detect 180-degree inversion or U... Agent: Mcandrews Held & Malloy, Ltd

20070014405 - Tag information production apparatus, tag information production method and recording medium: A tag information production apparatus is disclosed which can apply tag information to a main image through a realistic amount of work. A time information acquisition section acquires time information of a main image selected on a working screen, and a key region setting section sets a key region at... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070014406 - Cryptographic key split binding process and apparatus: A cryptographic key split combiner includes a number of key split generators for generating cryptographic key splits from seed data, and a key split randomizer for randomizing the key splits to produce a cryptographic key. The key split generators can include a random split generator for generating random key splits,... Agent: Ip Strategies

20070014407 - Symmetric cryptography with user authentication: A device uses a user authentication factor to generate a symmetric key for use in symmetric cryptography. The user authentication factor is encrypted and stored for authentication during decryption.... Agent: Lemoine Patent Services, PLLC C/o Portfolioip

20070014410 - Enhanced subscriber authentication protocol: The present invention provides a method of authenticating a pair of correspondents in a communication system, such as in a mobile phone network by utilizing a blend of public-key cryptography and symmetric cryptography. Each session between the mobile phone and the network consists of public-key based mutual authentication and key... Agent: Ralph A. Dowell Of Dowell & Dowell P.C.

20070014408 - Hybrid symmetric/asymmetric cryptography with user authentication: A device uses a user authentication factor to generate an asymmetric decryption key for use in cryptography. An asymmetric encryption key is generated from the asymmetric decryption key using a one-way function, and the asymmetric encryption key is used to encrypt a symmetric key.... Agent: Lemoine Patent Services, PLLC C/o Portfolioip

20070014409 - Methods and systems for close proximity wireless communications: A system is provided that includes a first device and a second device. The second device is configured to communicate wirelessly with the first device. The first and second devices selectively reduce an operational range for communications before sharing a secret, the secret related to data encryption.... Agent: Texas Instruments Incorporated

20070014412 - Data security for digital data storage: A computing system includes data encryption in the data path between a data source and data storage devices. The data storage devices may be local or they may be network resident. The data encryption may utilize a key which is derived at least in part from an identification code stored... Agent: Knobbe Martens Olson & Bear LLP

20070014411 - Property-based data authentication mechanism: In one embodiment, a network comprises a plurality of nodes that communicate with one another. A first node included in the plurality of nodes generates a plan comprising a plurality of marker states. Each marker state comprises a value for a property associated with the first node. When the first... Agent: Honeywell International Inc.

20070014413 - Delivering policy updates for protected content: Various embodiments permit policy updates, such as DRM policy updates, to be delivered and updated for a given piece of protected content. In at least some embodiments, various protocols can be extended to permit policy updates to be represented and carried by the protocol. In one embodiment, Hypertext Transport Protocol... Agent: Lee & Hayes PLLC

20070014414 - Hardware linked product key: Software piracy is inhibited by distributing unique software product keys operable in hardware or a hardware linked device. Software operable on the hardware requires the presence of the key in or accessible via the hardware, and operates only if the hardware product key is present. A method for securing software... Agent: Vierra Magen/microsoft Corporation

20070014415 - Quantum key distribution method and apparatus: A quantum key distribution (QKD) method involves the sending of random data from a QKD transmitter to a QKD receiver over a quantum signal channel, and the QKD transmitter and receiver respectively processing the data transmitted and received over the quantum signal channel in order to seek to derive a... Agent: Hewlett Packard Company

20070014416 - System and method for protecting against dictionary attacks on password-protected tpm keys: A computer system that may include a trusted platform module (TPM) along with a processor hashes a user-supplied password for a predetermined time period that is selected to render infeasible a dictionary attack on the password. The results of the hash are used to render an AES key, which is... Agent: Rogitz & Associates

20070009098 - Communication system and method for controlling the same: For an error rate QBER, threshold values are preset, including a threshold value Qbit for frame synchronization processing, a threshold value Qphase for phase correction processing, and a threshold value QEve for eavesdropping detection. Upon the distribution of a quantum key from a sender to a receiver, when the measurement... Agent: Law Offices Whitham, Curtis & Christofferson, P.C.

20070009100 - Production apparatus for index information with link information, production apparatus for image data with tag information, production method for index information with link information, production method for image data with tag information and recording: Disclosed herein is a production apparatus for index information with link information. The apparatus includes a database in which a corresponding relationship between region identification information applied to a key region which provides a partial region in a main image specified arbitrarily by an operator and link information for accessing... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070009099 - Tag information display control apparatus, information processing apparatus, display apparatus, tag information display control method and recording medium: A tag information display control apparatus disclosed allows information regarding a particular partial region in moving pictures to be displayed on a screen only by clicking the partial region. Movement of a pointer in a screen by a viewer of a main image is accepted, and the position of the... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070009101 - Method for allocating secured resources in a security module: The aim of this invention is to provide a method to allocate resources on a security module of a portable apparatus such as a telephone, taking into account the security imperatives of the different intervening parties, such as the operator and application suppliers. This aim is achieved by a resource... Agent: Harness, Dickey & Pierce, P.L.C

20070009103 - Secure key management for scalable codestreams: Key management is performed to generate a single key allowing of the decoding of all authorized levels of a plurality of access types within a scalable codestream. An access node set is derived from sets representing access types having hierarchies representable by fully ordered sets, such as resolution and layer... Agent: Lee & Hayes PLLC

20070009102 - Secure keystream transmission methods for wireless communication systems: The present invention relates generally to security in wireless data transmission, and, more particularly, to highly secure methods for transmitting keystreams among authorized communication nodes in wireless networks where all authorized communication nodes have to register in the network management system to warrant communication services. The securely transmitted keystreams can... Agent: Weibo Gong

20070009104 - Wireless smart camera system and method: A smart mesh network surveillance system and method for providing communication between a base system having at least one wireless input capture device ICD(s) and other ICD(s), wherein the ICD(s) are capable of smart cross-communication with each other and remote access to their inputs via a server computer, including the... Agent: Martin A. Renkis

20070003057 - Method of bit stream processing: The invention concerns a method of bit stream watermarking in a tandem coding system (300). The method involves arranging for the system (300) to comprise a series of stages including a first quantizing unit for processing an input signal to generate a first intermediate signal, a combining unit for embedding... Agent: Philips Intellectual Property & Standards

20070003058 - Confidential information implementation system and lsi: A security information implementation system includes a storage section 120a for storing first encrypted security information EDK (MK) provided by encrypting final security information DK according to internal security information MK and second encrypted security information EMK (CK) provided by encrypting the internal security information MK according to conversion security... Agent: Mcdermott Will & Emery LLP

20070003059 - Detection of a watermark in a digital signal: Watermark detectors have a buffer in which a number of image tiles are folded and accumulated prior to computing the correlation between buffer contents and the watermark pattern being looked for. The intention of the folding and accumulation process is to average out the video content while accumulating the embedded... Agent: Philips Intellectual Property & Standards

20070003060 - Multipoint synchronous diffused encryption/decryption method: A symmetric encryption/decryption method includes the steps of selecting a diffused mechanism, and the diffused mechanism includes at least one selected from a shift point, a block and a frame; obtaining a plurality of bits required for a cipher by the diffused mechanism and the element number of each dimension... Agent: Charles E. Baxley, Esq.

20070003061 - Device pairing via device to device contact: A system may include and/or involve a first device, a second device, and logic to effect pairing of the first and second devices upon detection of physical contact between the devices.... Agent: Fsp LLC Attn: Charles A. Mirho

20070003062 - Method for distributing security keys during hand-off in a wireless communication system: The present invention provides a method of wireless communication involving at least one first base station associated with a first access serving network and at least one second base station associated with a second access serving network is provided. The method may include generating a first key associated with the... Agent: Williams, Morgan & Amerson

20070003063 - Methods and apparatus to perform associated security protocol extensions: Methods and apparatus to perform associated extensions for negotiated channel security protocols are disclosed. A disclosed method to extend a security protocol comprises exchanging identifying information between a first and a second endpoint, determining a secret based on the exchanged identifying information, determining a first master secret based on the... Agent: Hanley, Flight & Zimmerman, LLC

20070003064 - Apparatus and method for group session key and establishment using a certified migration key: A method and apparatus for group session key and establishment using a certified migration key are described. In one embodiment, the method includes exporting of a protected certified migration key (CMK) to a target platform. In one embodiment, exporting of the protected CMK requires that the target platform is authorized... Agent: Blakely Sokoloff Taylor & Zafman

20070003065 - Secure instant messaging: Secure instant messaging is described. In an embodiment, a messaging device encrypts a challenge identifier to generate an encrypted challenge message, and communicates the encrypted challenge message via a peer-to-peer communication link to a recipient messaging device. The recipient messaging device decrypts the encrypted challenge message and encrypts the challenge... Agent: Lee & Hayes PLLC

20070003066 - Secure instant messaging: Secure instant messaging is described. In an embodiment, a messaging device encrypts a challenge identifier to generate an encrypted challenge message, and communicates the encrypted challenge message via a peer-to-peer communication link to a recipient messaging device. The recipient messaging device decrypts the encrypted challenge message and encrypts the challenge... Agent: Lee & Hayes PLLC