Cryptography inventions 03/08

20080069339 - Dual mode aes implementation to support single and multiple aes operations: An apparatus comprising a mode circuit and an encryption circuit. The mode circuit may be configured to selectively provide register input data on an output signal when in a first mode and memory data on the output signal when in a second mode. The encryption circuit may be configured to... Agent: Lsi Corporation

20080069340 - Method for steganographic cryptography: Methods for encrypting a clear text message into hidden cipher text are disclosed. Embodiments of the present invention may be used to encrypt clear text into a contextual altered form that does not appear to an observer to be cipher text. Embodiments of the present invention produce encrypted text without... Agent: Intel Corporation C/o Intellevate, LLC

20080069338 - Methods and systems for verifying a location factor associated with a token: A server, method and/or computer-readable medium verifies a location factor associated with a token. The server generates a challenge and encrypts the challenge by a key commonly shared by the server and the token, and transmits the encrypted challenge to the token. The token decrypts the encrypted challenge by the... Agent: Mh2 Technology Law Group (cust. No. W/red Hat)

20080069337 - System and method for multi-precision division: The present disclosure provides a system and method for performing multi-precision division. A method according to one embodiment may include generating a first product by multiplying a modulus having a most significant bit and/or a least significant bit equal to one and a quotient approximation of the modulus. The method... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC C/o Portfolio Ip

20080069342 - Method and system for protecting against unity keys: An apparatus, method and/or computer-readable medium protects against use of a unity key in a public key infrastructure (PKI). A public key and a private key are acquired according to the PKI. A message is encrypted by the public key to obtain ciphertext. A portion of the ciphertext is compared... Agent: Mh2 Technology Law Group (cust. No. W/red Hat)

20080069341 - Methods and systems for strong encryption: An embodiment generally relates to a method of strong encryption. The method includes generating a first cryptographic key based on a random number and generating a second cryptographic key based on a password. The method also includes encrypting private data with the first cryptographic key to arrive at wrapped private... Agent: Mh2 Technology Law Group (cust. No. W/red Hat)

20080069343 - Secure transmission of cryptographic key: Provided are a method, system and article of manufacture, wherein a cryptographic key generator generates a cryptographic key. The cryptographic key generator encrypts the cryptographic key with a session key that is available to both the cryptographic key generator and a cryptographic unit. The encrypted cryptographic key is transmitted across... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20080069348 - Techniques for key derivation for secure communication in wireless mesh networks: Key derivation procedures and key hierarchies compatible with the mesh link establishment protocol for use in a mesh network. A single cryptographic primitive may be utilized, which is a key derivation function, denoted as kdfK, where K is a cached pairwise master key. The result of the function kdfK may... Agent: Intel/blakely

20080069345 - Device, system and method for cryptographic key exchange: A method is disclosed whereby two parties can establish a cryptographic key for secure communications without any prior distribution of secret keys or other secret data, and without revealing said key to any third party who may have access to all of the transmissions between them. The method has both... Agent: Law Office Of Jay R. Yablon

20080069346 - Device, system and method for cryptographic key exchange: A method is disclosed whereby two parties can establish a cryptographic key for secure communications without any prior distribution of secret keys or other secret data, and without revealing said key to any third party who may have access to all of the transmissions between them. The method has both... Agent: Law Office Of Jay R. Yablon

20080069344 - Method and apparatus for key agreement between devices using polynomial ring: Provided is a method of key agreement between devices. Using the method, two devices on a network can exchange information using polynomials of a polynomial ring, authenticate each other using the exchanged information, and generate a shared key. Accordingly, an authenticated key agreement protocol, which has better security and a... Agent: Sughrue Mion, PLLC

20080069347 - Aggregate signature schemes: An authenticated RFID system is provided that uses elliptic curve cryptography (ECC) to reduce the signature size and read/write times when compared to traditional public key implementations such as RSA. Either ECDSA or ECPVS can be used to reduce the signature size and ECPVS can be used to hide a... Agent: Blake, Cassels & Graydon LLP

20080069349 - Device and method for generating chaotic signal: Provided is a device for generating a chaotic signal comprising a PN signal generator that is composed of a digital logic circuit and generates a digital pseudo random signal with a predetermined frequency; a voltage control that generates a clock signal with a predetermined frequency; a mixer that mixes the... Agent: Staas & Halsey LLP

20080069350 - Iptv transport architecture with double layer encryption and bulk decryption: IPTV-based systems offer acquisition and distribution of content from numerous channels with protected end-to-end conditional access. In adopting IPTV-based systems for seamless transport of the content to their subscribers' set-top boxes, service providers would need a transport architecture that accommodates their existing infrastructure. In the spectrum of service providers some... Agent: Thelen Reid Brown Raysman & Steiner LLP

20080069351 - Techniques for negotiation of security policies in wireless mesh networks: Techniques to overlay ciphersuite negotiation on top of the mesh link establishment protocol without sacrificing security. Two cryptographic primitives may be utilized: (1) a message integrity code, which is denoted as mK, where K is an authentication key (mK may be utilized to detect forged messages); and (2) a cryptographic... Agent: Intel/blakely

20080069353 - System and method for cryptographically authenticating data items: A cryptographic authentication system comprises an authentication media key block that comprises media key precursors. The system generates transformed keys by applying a function to a media ID of a media and each of the media key precursors, and generates entries in a binding table by applying an encrypting function... Agent: Shimokaji & Associates, P.C.

20080069352 - Theft protection method and promotion system for audio media: A theft protection method and promotion system for audio media for providing a secure and irreversible way to protect audio containing media content, while supplying an enhanced promotional potential. The inventive device includes a proposed process for the preparation and digital conversion of initial unprotected audio media, a method for... Agent: Greenberg & Lieberman, LLC

20080069354 - Information processing device, information processing method, and computer program: A configuration for preventing information leakage in content use involving data transfer between different devices and illegal content processing is provided. In a content reproduction or recording process involving data transfer between different devices, such as a drive and a host, a media ID (disc ID) used for a content... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080069355 - Protection of data on media recording disks: This invention discloses a secure recording medium having at least one of audio, video and software content, comprising a plurality of media recording disks (DVD's) with a disk security chip embedded in each the DVD, each the disk chip comprising a security key, wherein at least two of the DVD's... Agent: Limbach & Limbach L.L.P. Attn: Joel G. Ackerman

20080069356 - Method of identifying multiple digital streams within a multiplexed signal: In a subscriber television system with a host terminal, the present invention allows the identification of the individual packets from two separate MPEG transport streams that have been multiplexed together for decoding by a single external conditional access or point-of-deployment (POD) module. The decoding of individual packets from two separate... Agent: Scientific-atlanta, Inc. Intellectual Property Department

20080069357 - Method and apparatus for providing content service: There is provided a method and apparatus for providing a content service. A method of providing a content service includes generating a plurality of pieces of decryption information according to a continuous period of using a broadcasting service with respect to predetermined contents, encrypting the contents, and decrypting the encrypted... Agent: Sughrue Mion, PLLC

20080069358 - Portable storage device with wireless encryption protection: A portable storage device with wireless encryption protection is provided, including wireless identification remote control, for transmitting identification signal and information or lock control signal through wireless transmission, a memory interface connected to a data access host, for inputting decryption information from the data access host and for outputting to... Agent: Madson & Austin

20080069359 - Communication methods, methods of forming an interconnect, signal interconnects, integrated circuit structures, circuits, and data apparatuses: Some embodiments include communication methods, methods of forming an interconnect, signal interconnects, integrated circuit structures, circuits, and data apparatuses. In one embodiment, a communication method includes accessing an optical signal comprising photons to communicate information, accessing an electrical signal comprising electrical data carriers to communicate information, and using a single... Agent: Wells St. John P.s.

20080069360 - Encryption key distribution and network registration system, apparatus and method: A control method, apparatus, and system capable of securely distributing a shared secret network encryption key from a host to a wireless peripheral device. The sharing of the secret network encryption key is accomplished without the intervention of a man-machine interface at the peripheral. Embodiments enable a wireless device to... Agent: Fitch Even Tabin And Flannery

20080069361 - Methods of managing a key cache: Methods of managing a key cache are provided. An example key cache management method may include determining whether a given key has previously been loaded to a trusted platform module (TPM), loading the given key to the TPM and generating a key cache object corresponding to the given key if... Agent: Harness, Dickey & Pierce, P.L.C

20080069362 - Method for managing external storage devices: An apparatus, system, and method enable a new platform storage system to have access to an external storage system having data encrypted thereon by an existing platform storage system. Encryption information corresponding to the encrypted data in the external storage system is stored in a memory in the existing platform... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080069363 - Method for securely creating an endorsement certificate in an insecure environment: A method and system for ensuring security-compliant creation and signing of endorsement keys of manufactured TPMs. The endorsement keys are generated for the TPM. The TPM vendor selects an N-byte secret and stores the N-byte secret in the TPM along with the endorsement keys. The secret number cannot be read... Agent: Dillon & Yudell, LLP

20080063183 - Maintaining encryption key integrity: Provided are a method, system, and article of manufacture, wherein a first write only register is maintained in an encryption engine of a cryptographic unit. A second write only register is maintained in a decryption engine of the cryptographic unit. A cryptographic key is written in the first write only... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20080063186 - Detection and handling of encryption key and initialization vector: Provided are a method, system, and article of manufacture that maintains, at a decryption unit, and expected key identifier and an expected initialization vector. A key identifier and an initialization vector are received at the decryption unit, wherein a plurality of encrypted data records are preceded by the key identifier... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20080063188 - Encoding device for error correction, encoding method for error correction and encoding program for error correction: The present invention aims at providing an encoding device for error correction, encoding method for error correction and encoding program for error correction wherein countermeasures against eavesdropping are taken into account. To achieve this, in accordance with an aspect of the present invention there is provided an encoding device for... Agent: Blank Rome LLP

20080063184 - Method of performing a modular multiplication and method of performing a euclidean multiplication using numbers with 2n bits: The invention relates to method of performing a modular multiplication using numbers with 2n bits. The method includes the steps of breaking the numbers (A, B) down into a 2n base or a U base, U being a suitable integer; and, subsequently, performing MultModDiv—and/or MultModDivlnit-type elementary operations on the numbers... Agent: Buchanan, Ingersoll & Rooney PC

20080063185 - Symmetric cryptosystem using cascaded chaotic maps: A symmetric cryptosystem uses cascaded chaotic maps to encrypt plaintext and decrypt ciphertext. Received plaintext is encrypted using the cascaded chaotic maps to generate a ciphertext. The ciphertext can then be decrypted using the same cascaded chaotic maps in order to retrieve the plaintext.... Agent: Sadler, Breen, Morasch & Colby, P.s.

20080063189 - Optimal signed-digit recoding for elliptic curve cryptography: An apparatus and method is described of reducing joint weight for integers involved in a scalar multiplication, such as during cryptography. By way of example, the method is utilized within elliptic curve cryptography (ECC), wherein reducing joint weight speeds the execution of the scalar multiplication and reduces memory overhead. Generally,... Agent: John P. O'banion O'banion & Ritchey LLP

20080063190 - Method and system for generation of cryptographic keys for use in cryptographic systems: A method and deterministic random bit generator system operating in accordance with the method, for generating cryptographic keys and similar secret cryptographic inputs which are hard to guess. A entropy is input from an entropy source; and an initial seed is generated as a function of the entropy input. When... Agent: Pitney Bowes Inc. 35 Waterview Drive

20080063187 - Hash value generation device, program, and hash value generation method: A hash value generation device has a control part (120) that divides an inputted message into N message blocks of a predetermined data length (N being a natural number), repeats transformation processing a predetermined number R of rounds (R being a natural number larger than or equal to 2) for... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080063191 - Encrypting device, decrypting device, information system, encrypting method, decrypting method, and program: An encryption processing part of a controller of each of user devices specifies components of content as encryption target parts, creates an encryption key creation key by reading out a public key, for each of the encryption target parts, of a second user who is allowed to view the encryption... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080063193 - Crypto-communication method, recipient-side device, key management center-side device and program: A public key encryption system and an ID-based encryption system are provided, each exhibiting high security and having a tight security reduction, in which a BDH problem is a cryptographic assumption. A recipient-side device (110) serving as a recipient of a cryptogram selects random numbers s1 and s2, generates P,... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080063192 - Method and apparatus for generating cryptographic sets of instructions automatically and code generator: The method according to this invention concerns a method for automatically generating cryptographic algorithms with optional supplementary data, said algorithms comprising two different zones: external algorithm secrecy zone, in external parts of the algorithm exposed to side-channel analysis, and an internal purely cryptographic zone that is not exposed to side-channel... Agent: The Jansson Firm

20080063194 - Information processing device, information processing method, and computer program: An information processing device that executes processing for outputting recording data to an information recording medium includes a storing unit that stores common data that includes encrypted content, key information applied to decoding of the encrypted content, and content management information and, data content of which is unchanged even if... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080063195 - Method and system for encrypting or decrypting wmv streaming media: Methods for encrypting or decrypting WMV streaming media are disclosed. The encrypting includes: acquiring WMV streaming media, generating a content key; and encrypting the WMV streaming media using the content key; the decrypting includes: acquiring WMV streaming media encrypted, encryption information and a content key; and decrypting the WMV streaming... Agent: Sughrue Mion, PLLC

20080063196 - Secure media path methods, systems, and architectures: Methods, systems and architectures for processing renderable digital content are described. The various embodiments can protect against unauthorized access or duplication of unprotected content (i.e. decrypted content) once the content has reached a rendering device such as a user's computer. A flexible framework includes an architecture that allows for general... Agent: Lee & Hayes PLLC

20080063200 - Apparatus, method, and computer program for processing information and recording medium storing computer program: An information processing apparatus for reproducing content recorded on an information recording medium, includes a recording medium controller for reading data recorded on the information recording medium, and a data processor for acquiring from a unit key file recorded on the information recording medium a unit key corresponding to a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080063198 - Storing eedks to tape outside of user data area: A method, system and program are provided for enabling access to encrypted data in a storage cartridge by wrapping the data key used to encrypt the data with one or more encryption keys (e.g., a public key from a public/private key pair) to form one or more encryption encapsulated data... Agent: Hamilton & Terrile, LLP IBM Tucson

20080063197 - Storing encrypted data keys to a tape to allow a transport mechanism: A method, system and program are provided for enabling access to encrypted data in a storage cartridge by separately wrapping the data key used to encrypt the data with separate encryption keys (e.g., a public key from a public/private key pair) to form encryption encapsulated data keys (EEDKs) that are... Agent: Hamilton & Terrile, LLP IBM Tucson

20080063199 - Information recording apparatus and control method thereof: According to one embodiment, an information recording apparatus generates a plurality of mutually different title keys so as to conform to rules stipulating the respective ways of handling titles, executes an encryption process on the generated plurality of title keys by using corresponding respective rules and collectively records the encrypted... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080063202 - Reconfigurable handheld device to perform various tasks: The present invention relates in general a reconfigurable handheld device that can be used for multiple tasks, such as cell phone, TV receiver, video image transmitter, radar frequency scanner, surveillance terminal, approaching object warning system etc. The invention presents the program downloadable over network to add/sub the capabilities of the... Agent: Michael Zhu

20080063201 - Virtual im buddy in an instant messaging system to provide authentic information: An instant message (IM) virtual buddy is provided for communicating authentic messages to a client IM application of a client data communication device. The client IM application, using an encryption key associated with the virtual buddy, authenticates messages originating from the virtual buddy. The virtual buddy may be provisioned as... Agent: Gowling Lafleur Henderson LLP

20080063203 - Digital data file encryption apparatus and method: The invention is directed to a digital data delivery system including a digital data server configured to deliver first key encrypted digital data to a source device, and the first key encrypted digital data is encrypted using a first key. The source device is configured to generate decrypted digital data... Agent: Birch Stewart Kolasch & Birch

20080063204 - Method and system for secure processing of authentication key material in an ad hoc wireless network: A method and system for secure processing of authentication key material in an ad hoc wireless network enables secure distribution of the authentication key material between a mesh authenticator (110) and a mesh key distributor (115), which may be separated by multiple wireless links. The method includes deriving a pairwise... Agent: Motorola, Inc

20080063205 - Tunneling security association messages through a mesh network: The disclosure relates to techniques and technologies for establishing a secure link between a mesh authenticator and a mesh key distributor for transporting security association messages. The secure link can allow the mesh key distributor to communicate results of an authentication process to the mesh authenticator.... Agent: Motorola, Inc

20080063206 - Method for altering the access characteristics of encrypted data: A method, system and program are provided for enabling access to encrypted data in a storage cartridge, where the encrypted data may be decoded by retrieving an encryption encapsulated data key (EEDK) from the cartridge, decrypting the EEDK with a decryption key to extract the underlying data key, and then... Agent: Hamilton & Terrile, LLP IBM Tucson

20080063207 - Multiple sequential security key encryption-decryption: A method for reducing the memory requirements of executing ciphering processes is disclosed which utilizes sequential key extraction and ciphering. By providing a base key for extracting therefrom multiple first sequential security keys; each key is sequentially extracted and employed. During the process overwriting of each sequential security key occurs... Agent: Freedman & Associates

20080063208 - Data transmitting apparatus: A data communication system is provided in which a time required for a wiretapper to decrypt an encrypted text is significantly increased so that concealment is improved. In a data transmitting apparatus (17105), a multilevel encoding part (111) switches a plurality of key information to generate a multilevel code sequence... Agent: Wenderoth, Lind & Ponack L.L.P.

20080063209 - Distributed key store: A method, system and program are provided for enabling access to encrypted data in a storage cartridge by wrapping the data key used to encrypt the data with one or more encryption keys (e.g., a public key from a public/private key pair) to form one or more encryption encapsulated data... Agent: Hamilton & Terrile, LLP IBM Tucson

20080063210 - Rekeying encryption for removable storage media: Provided are a method, system, and article of manufacture for rekeying encryption keys for removable storage media. A rekey request is received for a coupled removable storage media, wherein encryption on the coupled removable storage media uses a first key and wherein the rekey request indicates a second key. The... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20080056487 - Intelligent network interface controller: A network interface device includes a security database and a security services engine. The security database is configured to store patterns corresponding to predetermined malware. The security services engine is configured to compare data to be transmitted through a network to the patterns stored in the security database, and the... Agent: Brake Hughes Bellermann LLP C/o Intellevate

20080056488 - Cryptographic module and ic card: A cryptographic module that performs a cryptographic operation is provided with: a register that retains first data related to key data to be used in the cryptographic operation; a register that retains second data without dependency on the first data; a selector that alternately selects and outputs the contents of... Agent: Foley And Lardner LLP Suite 500

20080056491 - Methods and systems for managing digital sheet music on a digital sheet music display system: Method for transmitting digital sheet music from a music database to a local music management system. Establishing a connection between the music database and the local music management system. Digital sheet music data files are sent from the music database to the local music management system. Methods of encrypting digital... Agent: Dinsmore & Shohl, LLP

20080056489 - Scrambling of a calculation performed according to an rsa-crt algorithm: A method and a circuit for scrambling an RSA-CRT algorithm calculation by an electronic circuit, in which a result is obtained from two modular exponentiation calculations, each providing a partial result, and from a recombination step, and in which a first step adds a digital quantity to at least one... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20080056490 - Encryption processing apparatus, encryption processing method, and computer program: An encryption processing apparatus for performing common-key blockcipher processing, the encryption processing apparatus includes an encryption processing part that performs data transformation in which a round function is iterated for a plurality of rounds; and a key scheduling part that generates round keys used to execute the round function. The... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080056492 - Copyright protective device and method: A key generation section 10 generates a key K to be used for cryptographic processing, based on an encrypted key data group EK. A key information retention/selection section 20 retains Lhe generated key and an intermediate key which was obtained when generating the key, and outputs the retained key information... Agent: Wenderoth, Lind & Ponack L.L.P.

20080056493 - Managing copy protection information of encrypted data: A method for managing copy protection information of a recording medium is disclosed. A data stream encrypted using copy protection information is recorded in a data area of an optical disc such as a write once optical disc or a rewritable optical disc, while the copy protection information and a... Agent: Birch Stewart Kolasch & Birch

20080056494 - System and method for establishing a secure connection: A system and method initiates secure sessions without occupying a process on the server until the premaster key is received from the client.... Agent: Patterson, Thuente, Skaar & Christensen, P.A.

20080056495 - Wireless communication system, vehicle unit, roadside unit and server: A wireless communication system provides a decryption module for decrypting card information on a roadside unit for information registration and a roadside unit for toll collection instead of providing the decryption module on a vehicle unit. In this manner, the wireless communication system can accommodate an IC card that uses... Agent: Harness, Dickey & Pierce, P.L.C

20080056496 - Method and system for issuing a kill sequence for a token: An embodiment relates generally to a method of managing a token. The method includes marking a token to be killed and detecting a presence of the token. The method also includes disabling the token in response to the marking of the token.... Agent: Mh2 Technology Law Group (cust. No. W/red Hat)

20080056497 - Method of generating anti-collusion fingerprint codes using: Disclosed herein is a method of generating anti-collusion fingerprint codes using a (na, n2a−2, na−1, n, 0, 1) GD-PBIBD. The fingerprint codes are generated using computer equipment that executes a program for executing a program for generating the fingerprint codes. The method includes step 1 of receiving an arbitrary prime... Agent: Adam K. Sacharoff Much Shelist Freed Denenberg Ament&rubenstein,pc

20080056498 - Content protection for oma broadcast smartcard profiles: A system and method of providing content protection for OMA Broadcast smartcard profiles. When an electronic device has a content item for encryption, the device generates a random number. The electronic device then transmits a content encryption key request message, including the random number and a service encryption key identifier,... Agent: Foley & Lardner LLP

20080056499 - Split-key key- agreement protocol: This invention relates to a method for generating a shared secret value between entities in a data communication system, one or more of the entities having a plurality of members for participation in the communication system, each member having a long term private key and a corresponding long term public... Agent: Blake, Cassels & Graydon LLP

20080056500 - Interoperable systems and methods for peer-to-peer service orchestration: Systems and methods are described for performing policy-managed, peer-to-peer service orchestration in a manner that supports the formation of self-organizing service networks that enable rich media experiences. In one embodiment, services are distributed across peer-to-peer communicating nodes, and each node provides message routing and orchestration using a message pump and... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080056501 - Method and system for providing authentication service for internet users: A system and method comprising a computer useable medium having computer readable program code means embodied therein for authenticating and encrypting and decrypting information transferred over a public network between a client application program running in a client computer and a server application program running in a server computer and... Agent: Fortkort & Houston P.C.

20080056502 - Application program distributing apparatus, image processing apparatus and program, allowing data communications using s/mime at ease: An S/MIME intermediate application is installed on a PC. The S/MIME intermediate application causes the PC to execute monitoring processing of monitoring data transmitted externally via a network by an e-mail software program or a printer driver, and encryption processing of encrypting the data to be transmitted when a predetermined... Agent: Buchanan, Ingersoll & Rooney PC