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Cryptography > Communication System Using Cryptography Communication System Using CryptographyCommunication System Using Cryptography patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/15/07 - 20070263868 - Method and apparatus for securely executing a background process One embodiment of the present invention provides a system that enables a background process to access encrypted data. During operation, the system executes the background process. Next, the system obtains a set of unencrypted keys by decrypting a set of encrypted keys with a server-key. The system then makes the ... 10/18/07 - 20070242828 - Dynamic interleaving of state vector components in an encrypted data communication system A state vector acquisition technique for a counter-based cryptographic data communication system is disclosed. The acquisition technique facilitates receipt of the state vector components (the short component and the long components) in any chronological order. The state vector components are saved upon receipt, and a counter for each long component ... 08/16/07 - 20070189535 - Method and apparatus for protecting contents supporting broadcast service between service provider and a plurality of mobile stations A method of receiving by a mobile station an encrypted form of broadcast service content broadcasted by a service provider (SP). The method includes receiving at least one encryption key from the SP, receiving a broadcast control message comprising a second encryption key, and decrypting the broadcast control message with ... 08/16/07 - 20070189534 - Encrypting message for secure transmission A system, apparatus, and method are provided for enhancing entropy in a pseudo-random number generator (PRNG) using remote sources. According to one embodiment of the present invention, first, the PRNG's internal state is initialized. Local seeding information is then obtained from a local host. For added security, additional seeding information ... 07/26/07 - 20070172063 - Out-of-band authentication for automated applications (bots) A technique is disclosed for providing authentication for an automated application (e.g., a BOT) in a presence-based communication system, such as an instant messaging (IM) system or a voice over IP (VoIP) system. The presence-based communication system uses a first communication channel to conduct human-with-human communication and to conduct human-with-BOT ... 07/19/07 - 20070165859 - Multiple level access system A method of securing an object at an access level includes selecting a profile for a user, including a credential having an encrypted credential public key, an encrypted credential public key encryption key, and a multiple-level access identifier. A working key is generated by binding a domain value with a ... 07/05/07 - 20070154015 - Method for cipher key conversion in wireless communication The present invention provides a method for authenticating a mobile unit in a wireless communication system. The method includes accessing information indicative of a random number and of a first key formed using a first cryptographic function. The method also includes forming second and third keys based on the random ... 06/28/07 - 20070147612 - Deriving cryptographic keys A method of deriving a cryptographic key from a token. The method comprises ascertaining an attribute of an emission from the token; processing the attribute to generate a seed; and deriving a cryptographic key from the seed. The attribute may be luminescence intensity values of a token. The method may ... 06/14/07 - 20070133798 - Quantum cryptography on a multi-drop optical network A system includes an optical network unit and a head-end or central office connected to a multi-drop optical network. The optical network unit transmits dim optical pulses via the multi-drop optical network using quantum cryptographic mechanisms to distribute encryption key symbols, where the dim optical pulses include one of single-photon ... 05/24/07 - 20070116285 - Method and system for secure packet communication A method for processing a communication data item. The communication data item is divided into at least two unencrypted packets to be encrypted. Each encrypted packet is generated from a corresponding unencrypted packet. Each unencrypted packet has a packet header and plaintext data. The packet header has an identifier field ... 05/24/07 - 20070116284 - Method and system for encrypting data delivered over a network Systems and methods are provided for delivering e-mail, typically with time relevant content, to users, whose e-mail addresses are encrypted. Specifically, the e-mails are administered by a host or home server that is transparent to the e-mail addresses of the computers and e-mail clients, that electronic communications are being sent ... 05/24/07 - 20070116283 - Method and device for efficient multiparty multiplication The invention introduces, in the framework of secure multiparty computation based on homomorphic threshold cryptosystems, a protocol and a special type of multiplication gate that can be realized in a surprisingly simple and efficient way using just standard homomorphic threshold ElGamal encryption. As addition gates are essentially for free, the ... 05/17/07 - 20070110242 - Communication system and communication method using the same A quantum cryptography system of the present invention includes a first station 1, a transmission path 2, and a second station 3. The first station 1 has means for emitting time-divided optical pulses into the transmission path 2 and measuring a phase difference between the optical pulses returning from the ... 05/17/07 - 20070110241 - Active stabilization of a one-way qkd system A one-way stabilized QKD system (10) that utilizes a control signal (CS) and a quantum signal (QS) that travel the same path through the system from a first QKD station (Alice) to a second QKD station (Bob). The control signal is detected at Bob and used to stabilize Bob's side ... 05/10/07 - 20070104329 - System and method for authenticating an operating system to a central processing unit, providing the cpu/os with secure storage, and authenticating the cpu/os to a third party In accordance with certain aspects, an operating system is booted for execution on a central processing unit (CPU). An atomic operation is executed, and if the atomic operation completes correctly then a software identity register of the CPU is set to an identity of the operating system. ... 04/12/07 - 20070081671 - Controlling deactivation of rfid tags An RFID tag includes a transceiver for communicating with a tag reader; memory for storing a deactivation string, an encrypted deactivation string created externally to the tag by encrypting the deactivation string, and a trial string created externally to the tag by decrypting the encrypted deactivation; and logic for comparing ... 04/05/07 - 20070076882 - Network component for a communication network, communication network, and method of providing a data connection This invention relates to a network component (11-16) for a communication network (1) in which multiple communication interfaces (31-37) are connected for mutual data exchange via a transmission network (20) and in which said network component (11-16) can be placed between at least one assigned communication interface (31-37) and the ... 04/05/07 - 20070076881 - Exclusive encryption An exclusive encryption system is established using multiple computing devices. The exclusive encryption system allows for the exclusion of certain plaintext (e.g., by one of the computing devices) and ciphertext (e.g., by another of the computing devices) while at the same time maintaining the privacy created by the encryption (e.g., ... 04/05/07 - 20070076880 - Secure digital transmission A cryptographic device comprises a memory pre-programmed with cryptographic key, a data processor connected to the memory, and an interface for connecting the interface to a computer. ... 04/05/07 - 20070076879 - System, method and computer program product for authenticating a data agreement between network entities A method for authenticating a data agreement between first and second network entities can include the first network entity committing to the agreed data value, and transmitting the committed data value and a first random value to the second network entity. The first network entity can receive a second random ... 04/05/07 - 20070076878 - Any-point-to-any-point (ap2ap) quantum key distribution protocol for optical ring network A QKD node in an optical ring network enables distribution of quantum keys between node pairs having neither photon sources nor photon detectors. The QKD node transmits corresponding pulses P1 and P2 into the ring network in opposing directions. A first node (Alice) of the pair randomly modulates pulse P1 ... 04/05/07 - 20070076877 - Shared key encryption using long keypads Methods of securely communicating a message from a first terminal to a second terminal include generating a keypad including a random sequence of bits having a length L, encrypting the message at the first terminal using a bit string beginning at an offset O in the keypad, and transmitting the ... 04/05/07 - 20070076876 - System for the compression, encoding, authoring, and encryption of data and media the storage of such content in external mobile telephone or personal digital assistant compatible memory devices A unique combination of compression, encoding, authoring, and encryption software practices to store large data and media files onto external mobile handset and PDA compatible memory devices. The unique combination allows for a copy protected handset and PDA compatible external memory device with pre-installed data and media. A multimedia player ... 03/29/07 - 20070071240 - Process for identifying duplicate values in very large data sets The present invention is directed to a method of identifying duplicate data elements in large data sets. This involves receiving the data sets. Dividing each data element in the data set into a series of data segments to define data keys. Generating an intermediate value for the each element in ... 02/08/07 - 20070030971 - Free-space quantum communication device with atomic filters The present invention discloses a free-space quantum communication device with atomic filters which are used in the field of quantum cryptography. The free-space quantum communication device of the present invention includes a beam splitter (2), two λ/2 wave plates (3,10), a λ/4 wave plate (4), two polarization beam splitters (5,11), ... 12/28/06 - 20060291655 - Secure intermediary communications system A system for communication of a message in which the message intended for a third computer is first encrypted by a first computer and is sent to a second computer. The second computer, acting as an intermediary, +decrypts the message and re-encrypts the message before sending the message to the ... 12/07/06 - 20060274896 - Methods and apparatus for providing user anonymity in online transactions End-to-end user anonymity is provided in electronic commerce or other types of online transactions through the use of an intermediary. An intermediary machine, which may be implemented in the form of a set of servers or other type of computer system, receives communications from a consumer or other user, and ... 11/30/06 - 20060269062 - Compression of fiber-based certificate of authenticity data Systems and methods for compressing data, particularly for use in manufacturing and verifying certificates of authenticity (COA), are described herein. Data elements obtained from a COA are ordered based on an iterative selection process. First, one or more data ranges are defined. Having defined the ranges, a data element from ... 11/23/06 - 20060262929 - Method and system for identifying the identity of a user The present invention describes a method and system for verifying the identity of a user of a first terminal in a communication system having at least a communication network (NET), a first terminal (DTE) associated with the communication network (NET) and a service provider (SP) associated with the communication network ... 11/09/06 - 20060251253 - Cryptographically signed network identifier In one embodiment, an apparatus includes a network controller to communicate with a network. The apparatus may also include a storage device that is coupled to the network controller to store a cryptographically signed unique network identifier. ... 10/26/06 - 20060239459 - Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof A parameter generation apparatus for generating parameters causing no decryption error for an NTRU cryptosystem so that an encrypted communication can be carried out between an encryption apparatus and a decryption apparatus in a secure and reliable manner, is comprised of: a provisional parameter generation unit operable to generate a ... 10/19/06 - 20060233372 - System and method for enforcing network cluster proximity requirements using a proxy A system, method and computer program for enforcing network cluster proximity requirements using a proxy is useful in preventing unauthorized devices from receiving encrypted broadcast content intended for only authorized users within a network cluster. The current art allows users to remotely establish trust via a cryptographic handshake. This results ... 09/14/06 - 20060204009 - Physical layer built-in security enhancement of spread spectrum wireless communication systems This disclosure contains three parts. First, it provides a quantitative analysis on the weaknesses of the physical layer built-in security of the operational and the proposed 3G spread spectrum based wireless communication systems. Second, it incorporates advanced cryptographic techniques into wireless transceiver design. More specifically, it proposes an AES based ... 09/14/06 - 20060204008 - Decryption apparatus and decryption method A decryption apparatus stores secret keys, each of which is specified by two nodes in tree structure in first memory, stores identifier of decryption apparatus corresponding to leaf in tree structure in second memory, acquires ciphertext and ciphertext index information item indicating two nodes, in the tree structure, which correspond ... 08/10/06 - 20060177060 - Image alignment An image decryption device (1) comprises a screen (10) on which a decrypted image may be visible. The decrypted image may the combination of two partial images, an encrypted image (A) displayed by a display device (2) and a key image or decrypting image (B) superimposed on the encrypted image ... 06/29/06 - 20060140407 - Optical machine locking method and system A method for assuring the authorized nature of encrypted transmissions between a plurality of communicators using a plurality of stand-alone communication processing devices, said method comprising the steps of: a) determining unique characteristics of at least one of said stand-alone communication processing devices involved in said encrypted transmissions between said ... 06/15/06 - 20060126841 - Method and apparatus for a security system for wireless networks A Method and Apparatus for a Security System for Wireless Networks is described. The technique involves encryption and decryption at the Physical layer. It also develops a criterion for choosing the encryption/decryption methodology for a particular embodiment for communication systems typically using a Viterbi Decoder and describes how the difficult-to-invert ... 06/15/06 - 20060126840 - Conditionally blocking reproduction of content items A reproduction device (200) is arranged to conditionally block the reproduction of a particular content item (324). The reproduction has a unit (202) to obtain a content reference identifier (330) identifying the particular content item (324) and a storage unit (204) for storing the content reference identifier (330). A resolution ... 06/08/06 - 20060120528 - Method of constructing hyperelliptic curves suitable for cryptographic purposes and cryptographic apparatus using such a method To provide a method for determining secure hyperelliptic curves quickly, it is proposed that suitable hyperelliptic curves be constructed using the complex multiplication method. The inventive method generates hyperelliptic curves, suitable for cryptographic applications, of genus 2 over finite fields having large characteristics. The invention further provides a cryptographic apparatus ... 05/18/06 - 20060104446 - Online data encryption and decryption Systems and methods for providing encryption and decryption of data transmitted on a computer implemented network, preferably user authentication identifier data, such as a password, at the point of entry into the user's computer. The systems and methods enable an end user to mentally select a marker from one of ... 04/13/06 - 20060078121 - Encrypted cryptography system A public key cryptography (PKI or other similar system) is used to sent partial or multiple of encryption or decryption algorithm (cipher or decipher) to the data sender or receiver to encrypt or decrypt the data to be sent or received and destroy itself after each or multiple use. Since ... 04/13/06 - 20060078120 - Bearer control of encrypted data flows in packet data communications In a communication session in which data flows with encrypted data packets pass through a monitoring intermediary for data traffic control. The encrypted data packets include SPIs (Secured Parameter Indexes) which are used to identify SAs (Security Associations) for data decryption. During the initial signaling process for the communication session, ... 03/16/06 - 20060056629 - Asynchronous communication system A data storage system, and associated asynchronous communication system and method are described. The data storage system includes data storage means (46) for storing data and an asynchronous transmitter/receiver (45) arranged to communicate over an IEEE 1394 network (30). The data storage means (46) is arranged to accept inputs and ... 03/09/06 - 20060050885 - Method for performing cryptographic functions in a computer application, and application adapted to the implementation of said method A computer application is provided with a cryptographic toolbox with having a modular architecture. The toolbox has a module for manipulating data formats used in the performance of cryptographic functions, a module for executing algorithms involved in cryptographic operations, a module for accessing cryptographic resources, and a functional module supervising ... 03/09/06 - 20060050884 - Hardened automatic synchronisation scheme for atm cells A method of preserving and/or reacquiring synchronisation of ATM cells (10) in an ATM cell transmission system, the ATM cells each including a header (12) and payload (11), the method including the steps of encoding the header and payload and interleaving them along with synchronisation data within a transmission frame. ... 02/16/06 - 20060034459 - Data communication apparatus, control method therefor, and program for implementing the method A data communication apparatus which is capable of easily selecting a desired encryption scheme that is appropriate to the size of data that is to be transmitted. A key to be used for encryption is acquired. An encryption means corresponding to the acquired key is searched. The period of time ... 02/02/06 - 20060023884 - Method and system for preventing current-privilege-level-information leaks to non-privileged code Various embodiments of the present invention introduce privilege-level mapping into a computer architecture not initially designed for supporting virtualization. Privilege-level mapping can, with relatively minor changes to processor logic, fully prevent privileged-level-information leaks by which non-privilege code can determine the current machine-level privilege level at which they are executing. In ... 02/02/06 - 20060023883 - System, method and apparatus for secure data transmissions within an information handling system A system, method and apparatus are provided for creating a secure data path using a peer-to-peer enabled Peripheral Component Interconnect-Express (PCI-E) data communications path. In an exemplary implementation, a content receiver and rendering subsystem are provided, each aware of the other. The content receiver is operable to receive protected content ... 01/26/06 - 20060018474 - Method for transmission/reception of contents usage right information in encrypted form, and device thereof Confidential data such as license data is encrypted using the symmetric key encryption algorithm alone which requires smaller computation amount, and is readily realized by hardware means, as compared with the public key encryption algorithm. A license-data transmitter (y) encrypts license data LIC using two keys Kscy and Kssx supplied ... 01/26/06 - 20060018473 - Method for transmission/reception of contents usage right information in encrypted form, and device thereof A license-data transmitter (in a case of recording, a recording device 100 serves as a license-data transmitter, and in a case of readout, a storage device 200 serves as a license-data transmitter) verifies a certificate C[KPdx] (the license-data receiver and the license-data transmitter will be represented by “x” and “y”, ... 01/19/06 - 20060013395 - Digital watermark key generation The present invention relates to message encoding. In a first implementation, a message is provided. The message is transformed by a secret key. The secret key is generated by providing a plural-bit seed. The seed is randomized and then error correction encoded. We prefer tail-biting convolutional encoding for our error ... 01/19/06 - 20060013394 - Atm data transmission systems A method of hardening ATM cells (10), the ATM cells (10) each including a header (12) and payload (11), the method including the steps of hardening individual ATM cells by encoding the header and payload and encapsulating the resulting data (20, 21) from each cell within a transmission frame dedicated ... 01/12/06 - 20060008087 - Information security for aeronautical surveillance systems A method and apparatus for encrypting a Mode-S extended squitter exploiting a provided key. The key includes a control key segment, an address key segment, a first message key segment, and a first parity/identity key segment. Adding modulo two the control segment to the control key segment produces an intermediate ... 12/29/05 - 20050286720 - Encrypting/decrypting device and method, encrypting device and method, decrypting device and method, and transmitting/receiving device The encryption/decryption device includes: a data structure analysis block for receiving encrypted data or data to be encrypted and outputting control data and also the encrypted data or the data to be encrypted as processing block input data; a data control block for determining a mode selection signal according to ... 11/24/05 - 20050259824 - Information processing apparatus, information processing method, and information processing program An information processing apparatus has an authentication/key exchange unit, a round trip time measuring unit, a common key transmitter, a contents transmitter and a contents transmitter. The round trip time measuring unit sends a round trip time measuring request generated to the communication apparatus through the first communication connection to ... 11/24/05 - 20050259823 - Security system with an intelligent dma controller A security subsystem is provided with at least a first security engine, a first set of registers and a control portion to perform a first security operation for each of a first number of data blocks of each of a first number of data segments of a first data object. ... 11/10/05 - 20050249351 - Information providing method, information providing system, information providing device, and information acquisition device A computer unit 71 disposed at a vehicle assembly plant 70 sends to an information providing center 40 chassis number information and MAC address information and phone number information of a communication unit 15 of a vehicle. A computer unit 81 at a vehicle sales shop 80 transmits to the ... 10/20/05 - 20050232423 - Abstractions and automation for enhanced sharing and collaboration The present invention provides methods for using abstractions of people, including dynamic and static groups of people, to enhance the efficiency of the specification and automation of policies for sharing information between users with a “need-to-know.” An instance of the present invention can also provide these users information based on ... 10/20/05 - 20050232422 - Gsm (global system for mobile communication) handset with carrier independent personal encryption The present disclosure introduces simple methods and systems for personal encryption of messages and data, using a GSM handset. The proposed methods and systems furnish another layer of communication security instead of or in addition to that of the carrier. Users can generate and customize their own encrypted communication, independent ... 10/20/05 - 20050232421 - Secure logging of transactions A method of generating a secure transaction log recording transaction data established between a first 10 and a second 20 data processing device. The transaction log includes transaction data derived from the first device that is digitally signed by the second device, and then digitally re-signed by the first device, ... 10/20/05 - 20050232420 - Atm cell handling A method of enhancing the resistance of ATM cells (10) to burst errors and jamming, the ATM cells each including a header (12) and payload (11), the method including the step of interleaving the ATM cell header into an error correction transmission frame. ... 10/06/05 - 20050220305 - Storage system executing encryption and decryption processing A storage system 1 includes a channel interface (IF) unit 11 having an interface with a server 3, a disk IF unit 16 having an interface with a hard disk group 2, a memory unit 21 for storing data to be read/written from/to the server 3 or the hard disk ... 10/06/05 - 20050220304 - Method for authentication between devices A certifying authority provides a method for whitelist-based controlling of authentication of a first device (102) in a system (100) to a second device (103). The method comprises issuing to the first device (102) a group certificate identifying a range of non-revoked device identifiers, said range encompassing the device identifier ... 09/29/05 - 20050213762 - Modular cryptographic device and coupling therefor and related methods A cryptographic device may include a cryptographic module and a communications module removably coupled thereto. The cryptographic module may include a first housing and a first connector carried thereby, and the communications module may include a second housing and a second connector carried thereby and being removably mateable with the ... 09/29/05 - 20050213761 - Storing number and a result of a function on an integrated circuit An integrated circuit comprising a processor and non-volatile memory, the non-volatile memory storing a first number and a second number, wherein the second number is the result of an encryption function taking a third number and secret information as operands, the integrated circuit comprising software configured to decrypt the second ... 09/15/05 - 20050201561 - Multisignature method, apparatus, program, and system According to embodiments of the present invention, in a case where a ground for security is laid in difficulty in executing an inverse function operation of a trapdoor one-way function, represented by an RSA problem, even when a signature order advances, an increase of a size of a key can ... 09/15/05 - 20050201560 - System and method for container monitoring, real time authentication, anomaly detection, and alerts An invention is provided for monitoring an item, such as a container. The invention includes a computer in communication with a receiver that receives signals from a remote source. A transmitter in communication with the computer receives values from the computer based on the signals received from the remote source. ... 08/18/05 - 20050180570 - Method and system to validate periodically the visa of a foreign visitor during the visitor's in-country stay This invention integrates with a country's customs and immigration system to keep a periodic check on visitors within the country's borders. A smartcard is created and issued to the visitor at the visitor's Port of Entry. Pertinent immigration information is embedded in the smartcard. Cryptographic technology is used with the ... 08/04/05 - 20050169476 - Mobile access to lightweight directory access protocol (ldap) server A system for handling an LDAP query to an LDAP server for an LDAP service comprises a client program executable on a client system and a handler program executable on a handler system. The client program is operable to generate LDAP query data corresponding to the LDAP service and provide ... 07/21/05 - 20050157879 - Cipher strength evaluation apparatus An object is to evaluate the strength in consideration of the relationship held between keys, to allow the detection of a weak key condition to lower the difficulty in decrypting ciphertext, and to detect a weak key based on the weak key condition. Based on the relationship between keys in ... 07/14/05 - 20050152551 - Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system A method for determining whether the terminal is authorized to receive the selected service is practiced in a terminal of a conditional access system in which a user selects a service, the selected service being associated with a frequency, the terminal having a tuner and a secure element with at ... 07/14/05 - 20050152550 - System for transmitting encrypted data A system for transmitting encrypted data. A plurality of nested communication links are communicably connected to a network. Each communication link includes an originating node and a terminating node which are adapted to route a transmission therebetween. Transmissions between the originating node and the corresponding terminating node of the outermost ... 07/14/05 - 20050152549 - Time domain watermarking of multimedia signals A method of generating a watermark signal, embedding the watermark signal within a multimedia signal, and subsequently detecting the watermark signal is described. The watermark signal is the sum of two sequences of values, the second sequence of values being a circularly shifted version of the first sequence. ... 06/30/05 - 20050141716 - Coherent-states based quantum data-encryption through optically-amplified wdm communication networks A quantum cryptographic protocol uses two-mode coherent states that is optically amplifiable, resulting in a polarization independent system that is compatible with the existing WDM infrastructure and which provides secure data encryption suitable for wavelength division multiplexing networks through an in-line amplified line. ... 06/30/05 - 20050141715 - Method and apparatus for scheduling the processing of commands for execution by cryptographic algorithm cores in a programmable network processor A method and apparatus for scheduling the processing of commands by a plurality of cryptographic algorithm cores in a network processor. ... 06/16/05 - 20050129235 - System and method of secure garbage collection on a mobile device A method and system for performing garbage collection involving sensitive information on a mobile device. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the ... 06/09/05 - 20050123138 - Communication apparatus and communication system Receiving section 102 receives security data. Propagation estimating section 103 estimates a propagation environment based on a reference signal transmitted from a communicating party. Demodulation section 104 demodulates the security data. Coding section 105 encodes information of estimated propagation environment to generate confidential information corresponding to the propagation environment. Buffer ... 06/09/05 - 20050123137 - Means for providing protecting for digital assets A system for providing protection for identified digital assets, the system including: (1) a central control system (210); (2) a client terminal (220) able to communicate via a computer network (230) with the central control system (210); (3) client software (240) resident on each client terminal (220); (4) a master ... 06/02/05 - 20050117751 - Cryptographic communication system In a cryptographic communication system, a prover is connected through a channel to a verifier. Elements a, b, c, d of a finite group are used as a public key and a parameter “x” as a private key, where “x” is a discrete logarithm of “b” to base “a”. The ... ### FreshPatents.com Support |