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US20130329887 |
APPARATUS AND METHOD FOR PROVIDING SECURITY SERVICE
An apparatus and method for providing a security service are provided. The apparatus for providing a security service includes a first block cipher and a second block cipher. The second block... |
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US20060193472 |
Secure encryption system, device and method
A system, device and method for encrypting plaintext information securely. The system includes a transmitting agent to generate and synchronize a first cipher stream using the plaintext... |
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US20120237032 |
TWO-STAGE BLOCK SYNCHRONIZATION AND SCRAMBLING
A two-stage block synchronization and scrambling module includes a synchronization PRNG module, a scramble PRNG module, a summing module, and a storage module. The synchronization PRNG module is... |
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US20080199011 |
Transponder System for Transmitting Key-Encrypted Information and Associated Keys
A transponder (1) comprises at least one memory (MEM1, MEM2) for storing encrypted information (E_k(EPC, PI)) that has been encrypted by use of a key (k) and for storing the key (k) associated... |
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US20130170642 |
ELLIPTIC CURVE RANDOM NUMBER GENERATION
An elliptic curve random number generator avoids escrow keys by choosing a point Q on the elliptic curve as verifiably random. An arbitrary string is chosen and a hash of that string computed. The... |
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US20060265278 |
System and method for censoring randomly generated character strings
A method for generating a random string of characters can include the steps of determining a full character set. A full character set can include letters (both upper and lower case), digits, and... |
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US20060093146 |
Two-stage block synchronization and scrambling
A two-stage block synchronization and scrambling module includes a synchronization PRNG module, a scramble PRNG module, a summing module, and a storage module. The synchronization PRNG module is... |
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US20120057703 |
TECHNIQUES FOR TRANSMITTING CONTROL CHANNEL INFORMATION
Techniques for protecting information elements transmitted to mobile stations from intruders. The technique can involve applying a randomized mask over an information element and then providing a... |
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US20050094816 |
Interference estimation in CDMA systems using alternative scrambling codes
Methods and apparatus that improve interference (I) estimation in CDMA systems in which the DPCH is sorted under a scrambling code different from the scrambling code of a channel such as the CPICH... |
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US20090304179 |
SYSTEM AND METHOD TO PRECLUDE MESSAGE MODIFICATION IN DATA AUTHENTICATION SYSTEMS THROUGH EFFICENT USE OF FEEDBACK IN CRYPTOGRAPHIC FUNCTIONS
A data hashing system operative to hash an incoming string of message words, thereby to generate a hash value tag comprising a deterministic random number string which uniquely identifies the... |
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US20090110197 |
CRYPTOGRAPHIC SYSTEM CONFIGURED FOR EXTENDING A REPETITION PERIOD OF A RANDOM SEQUENCE
A cryptographic system (CS) is provided. The CS (500) is comprised of a data stream receiving means (DSRM), a ring generator (RG) and an encryptor. The DSRM (602) provides a data stream (DS). The... |
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US20060215838 |
Encryption method and apparatus in a conditional access system for digital broadcasting
An encryption method and apparatus in a conditional access system which interworks with a smart card to receive digital broadcasting are provided. A smart card interface acquires a random value... |
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US20100189257 |
Lightweight Streaming Protection by Sequence Number Scrambling
Methods and apparatus for securely streaming multimedia packets, such as RTP packets, are disclosed, in which the payloads of the packets are shuffled. This reordering is performed using a... |
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US20100074444 |
Method and System for OCDM-Based Photonic Layer Security Robustness to Spoof Data Integrity
A system and method is provided for identifying fraudulent data in an optical data transmission. The system and method includes scrambling an encoded data signal using dynamically changing... |
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US20050135622 |
Upper layer security based on lower layer keying
A method (FIG. 4-6) of providing authentication services for applications running on a client (401, 501) and requiring access to a network based server (407, 507) where the method uses lower layer... |
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US20090060191 |
INTERFACE CIRCUIT, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING SYSTEM
A scrambling circuit 104 for encrypting command information is provided in a sending side host computer 3001, and a descrambling circuit 101 for decoding the encrypted command information is... |
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US20080130891 |
INTEGRATED CIRCUIT DEVICE INTERFACE WITH PARALLEL SCRAMBLER AND DESCRAMBLER
An interface for an integrated circuit (IC) device. The interface includes a scrambler to combine a plurality of plaintext data streams and a pseudorandom key sequence. The scrambler includes a... |
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US20060239461 |
Method and system for creating random cryptographic keys in hardware
A method and system for creating random cryptographic keys in hardware is described. One or more bits are generated via one or more random bit circuits. Each random bit circuit includes a sensing... |
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US20060193471 |
Encryption method and system
The invention concerns an encryption method and system particularly adapted to securing email. It makes it possible to prevent the encryption of the body of a message from generating certain... |
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US20050254650 |
Authentication system, authentication device, terminal device, and authentication method
An authentication system giving little load for the user at the time of authentication and retaining high security is realized. A management part 107 of a server apparatus 106 memorizes a password... |
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US20100034385 |
COMBINATIONAL COMBINER CRYPTOGRAPHIC METHOD AND APPARATUS
Another feature provides an efficient encryption method that safeguards the security of encrypted symbols. Each plaintext symbol is encrypted by using a separate pseudorandomly selected... |
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US20090161870 |
METHOD FOR KEYLESS PROTECTION OF DATA USING A LOCAL ARRAY OF DISKS
A method secures data in a network. The data includes a data message that has a first bit length. A random number is generated and transformed to create a first pseudo random number. The first... |
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US20130230172 |
Novel binary and n-state Linear Feedback Shift Registers (LFSRs)
N-state with n equal or greater than 2 modified Linear Feedback Shift Registers (mLFSRs) having a non-reversible n-state switching function have been disclosed. An mLFSR can also contain a device... |
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US20100135493 |
METHOD AND APPARATUS FOR GENERATING PSEUDO RANDOM SEQUENCE IN BROADBAND WIRELESS COMMUNICATION SYSTEM
Provided are a method and an apparatus for generating pseudo random sequence to generate pseudo random sequences which have larger sizes and are different from each other in a wireless... |
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US20140133654 |
METHOD AND SYSTEM FOR ENHANCING CRYPTOGRAPHIC CAPABILITIES OF A WIRELESS DEVICE USING BROADCASTED RANDOM NOISE
A secret stream of bits begins by receiving a public random stream contained in a wireless communication signal at a transmit/receive unit. The public random stream is sampled and specific bits... |
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US20120281831 |
Method and System for Enhancing Crytographic Capabilities of a Wireless Device Using Broadcasted Random Noise
A secret stream of bits begins by receiving a public random stream contained in a wireless communication signal at a transmit/receive unit. The public random stream is sampled and specific bits... |
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US20060291656 |
Encryption method and decoding method for a digital transmission system
An encryption method and decoding method for a digital transmission system, in which the digital data stream comprises an alternating sequence of training sequences and data symbols, and the... |
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US20070110232 |
ENCRYPTION APPARATUS, DECRYPTION APPARATUS, AND METHOD
A method whereby an encryption apparatus encrypts a message on the basis of a fibration X(x, y, t) serving as a public key when private keys are two or more sections corresponding to fibration... |
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US20090323956 |
ENCRYPTION DEVICE, PROGRAM, AND METHOD
Disclosed is an encryption device for generating a pseudo-random number based on a secret key and generates an encrypted text by applying the pseudo-random number sequence to a plain text, uses,... |
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US20090135803 |
REFERENCE SIGNAL GENERATION IN A WIRELESS COMMUNICATION SYSTEM
Techniques for generating reference signals in a wireless communication system are described. A set of Q reference signal sequences may be generated based on G pseudo-random sequences and L... |
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US20100246823 |
APPARATUS AND METHOD FOR ADDRESS PRIVACY PROTECTION IN RECEIVER ORIENTED CHANNELS
Disclosed is a method for address privacy protection for a first wireless device sharing a privacy key with a second wireless device. In the method, a first resolution tag is generated at the... |
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US20070177724 |
Data transmitter and data receiver
A data communication apparatus which causes the eavesdropper to take a significantly increased time to analyze a cipher text and provides high concealability is provided. A multi-level code... |
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US20090060190 |
EFFICIENT AND LOW POWER ENCRYPTING AND DECRYPTING OF DATA
The present invention relates to the field of computer data encrypting and decrypting, especially for mobile equipments like PDA, mobile phones, smart cards and the like, which need a good... |
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US20060222181 |
Method for transporting real-time audio and video data
A method for transporting real-time audio and video data is provided, wherein a partial encryption method merely encrypts some packets or some segments thereof in the data stream thereby improve... |
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US20060067527 |
Method for making seed value used in pseudo random number generator and device thereof
A seed value making method and device for a PRNG (Pseudo Random Number Generator) are provided. The seed value making method includes the steps of: accumulating in memory units of a First Data... |
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US20140023193 |
SYSTEM AND METHOD FOR SECURE POWER SYSTEMS INFRASTRUCTURE COMMUNICATIONS
Communication apparatus and associated method for sending messages while concealing the messages among chaff data. In sending outgoing communications to and from a remote device, a stream of... |
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US20080089518 |
METHOD AND SYSTEM FOR ENHANCING CRYPTOGRAPHIC CAPABILITIES OF A WIRELESS DEVICE USING BROADCASTED RANDOM NOISE
A secret stream of bits begins by receiving a public random stream contained in a wireless communication signal at a transmit/receive unit. The public random stream is sampled and specific bits... |
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US20100027608 |
Scrambled multicarrier transmission
Signals (typically in the form of OFDM signals) are transmitted between one or more transmitting antennas and one or more receiving antennas. The signals transmitted are subject to addition of a... |
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US20070058811 |
Method and apparatus to facilitate transmission of an encrypted rolling code
An encrypted rolling code (11), a plurality of differing data bit order patterns (13), and a plurality of differing data inversion patterns 14) are provided. One then selects (15) a particular one... |
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US20060045270 |
System and method for information protection by navigation and concealment
A system and a method for scrambling data according to a map, which is preferably user-defined, such that the sequential order in which the data must be read is determined by the map. Rather than... |
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US20100124331 |
SPECTRUM AUTHORIZATION AND RELATED COMMUNICATIONS METHODS AND APPARATUS
Various embodiments relate to wireless communications, and more particularly, to methods and apparatus for authorizing use of spectrum, e.g., through the issuance of spectrum access keys, and/or... |
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US20140362990 |
LINK AGGREGATOR WITH UNIVERSAL PACKET SCRAMBLER APPARATUS AND METHOD
Apparatus and methods are presented for using configurable additive data scrambling or descrambling circuitry for multichannel link aggregators in which a scrambler or descrambler polynomial is... |
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US20060093147 |
Apparatus and method for scaramling/de-scrambling 16-bit data at PCT express protocol
An apparatus and method for scrambling/de-scrambling 16-bit data at a PCI Express protocol are provided. The apparatus includes an 8-bit precedence shift register generator for calculating an... |
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US20090245509 |
TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND DATA TRANSMITTING SYSTEM
Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic... |
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US20060115087 |
Scrambler, descrambler and method, and disc apparatus
The descrambler receives scrambled data generated from byte data associated with an encoding sequence Q and a scramble value corresponding to the sequence Q in a processing sequence P. The... |
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US20090220083 |
Stream cipher using multiplication over a finite field of even characteristic
A first bit sequence is generated using a first pseudorandom bit source. A second bit sequence is generated using a second pseudorandom bit source. A third bit sequence is generated by multiplying... |
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US20090268910 |
Apparatus and method for initialization of a scrambling sequence for a downlink reference signal in a wireless network
A method for generating a variable reference signal is provided. The method comprises initializing a scrambling sequence generator at the start of a 10 millisecond (ms) radio frame. The variable... |
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US20070076877 |
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... |
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US20080159537 |
SYSTEM AND METHOD FOR INFORMATION SCRAMBLING IN A WIRELESS COMMUNICATION SYSTEM
The present disclosure relates generally to a system and method for scrambling in a wireless communication system. In one example, the method includes receiving a bit group representing at least a... |
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US20090154700 |
Generation of a pseudorandom data sequence
A method of generating a pseudorandom data sequence, wherein said pseudorandom data sequence is generated by a procedure for searching for a search pattern in an initial data sequence of N bits,... |