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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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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,...

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