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Method and apparatus for detecting protection of audio and video signals

Patent Number: RE44245
Publication Date: 2013-05-28
Inventors: ;

A method and apparatus for protecting access to audio and/or video data is accomplished when data is received, where the data may be audio data and/or video data. Having received the data, it is interpreted to determine whether an embedded data access parameter is active. If so, an indication of the particular type of data access is generated. The data access parameter may control access to the data as at least one of: copy restrictions, viewing restrictions, and/or use restrictions. The ...

Binding keys to secure media streams

Patent Number: 8467536
Publication Date: 2013-06-18
Inventors: ;

A key message can include a key-encryption-key (KEK) associated with a KeyDomainID and a KeyGroupID. A session description message can describe streaming media initialization parameters containing media stream information for one or more media streams. For each media stream, the media stream information can include an IP address and a data port. The session description message can further contain a linkage for binding the KEK to a corresponding one of the media streams. The linkage can ...

Accelerated verification of digital signatures and public keys

Patent Number: 8467535
Publication Date: 2013-06-18
Inventor:

Accelerated computation of combinations of group operations in a finite field is provided by arranging for at least one of the operands to have a relatively small bit length. For example, a technique for verifying a signature of a message can include applying a first mathematical function to a combination of the first signature component and the second message portion to obtain an intermediate component, using the intermediate component to generate a first value and a second value, where a ...

Method and system for secure access and processing of an encryption/decryption key

Patent Number: 8467534
Publication Date: 2013-06-18
Inventors: ; ; ;

Secure access and processing of an encryption/decryption key may include generating one or more keys within a key controller block of a chip. The generated keys may be transferred from the key controller block of the chip to an on-chip bus interface block via a secure serial link. The transferred keys may be stored in registers which may be accessible by only the key controller block of the chip. In this regard, the generated keys may be written to one or more of the key registers only by ...

One-time-pad encryption with key ID and offset for starting point

Patent Number: 8467533
Publication Date: 2013-06-18
Inventor:

A one-time-pad encryption system where encrypted one-time-pad keys can be distributed to users on physical media or on a computer network from a central server. Each one-time-pad key has a key identification number that facilitates key management. Each encrypted data set includes a header specifying an offset within the one-time-pad key for commencement of decryption so that messages can be decrypted in any order. Before encryption begins, the length of remaining unused key is compared to ...

System and method for secure transaction of data between a wireless communication device and a server

Patent Number: 8467532
Publication Date: 2013-06-18
Inventor:

The present invention provides a system and method for a set of Extensible Authentication Protocols (EAPs) that can serve Confidentiality, Authentication, Authorization and Accounting (CAAA) issues at an affordable cost. According to one embodiment of the invention, a system and method is provided to generate random sequences (through prime numbers) which can be used in the authentication process of certificateless extensible authentication protocols (EAPs) for mobile and wireless ...

Mobile terminal with encryption chip and related network locking/unlocking method

Patent Number: 8467531
Publication Date: 2013-06-18
Inventor:

A mobile terminal is provided with a network lock functionality for a network. The mobile terminal includes a subscriber identity module (SIM) slot configured to host a SIM card or an unlocking device, a control chip, an encryption chip, and a network locking module. The control chip is coupled to the SIM slot through a first interface, the encryption chip is coupled to the SIM slot through the first interface to communicate with a module inserted into the SIM slot, and the network locking ...

System and method for encrypting and decrypting document reproductions

Patent Number: 8467530
Publication Date: 2013-06-18
Inventors: ;

The present invention is directed to a system and method for secure document transmission. A sender selects a portion of an original document containing confidential information using a highlighter, bracketing, underlining, or other identifying marks. The original document is then scanned to generate an electronic version, which is subject to optical character recognition to locate the portions of the document containing confidential information based on the identifying marks. These ...

Content reproduction apparatus, recording apparatus, recording and reproduction apparatus, and reproduction method

Patent Number: 8467529
Publication Date: 2013-06-18
Inventors: ;

In an apparatus of reproducing contents in which an encryption key is to be changed at predetermined intervals for copyright protection purpose, the contents can be reproduced or specially reproduced with no problem such as fast forward, and fast rewind. For special reproduction, data and key information needed therefor are made ready in advance, and using the data and the key information, the contents are specially reproduced. Alternatively, an encryption key generation rule is defined in ...

Multimedia content protection

Patent Number: 8467528
Publication Date: 2013-06-18
Inventors: ; ; ;

A system on a chip including a bus, a bootup module coupled to the bus and configured to cause the system on a chip to bootup in accordance with a selected security mode, an input module coupled to the bus and configured to receive an input signal and to provide the input signal to the bus, a processor coupled to the bus and configured to process the input signal to provide an intermediate signal, in accordance with a type of content protection associated with the input signal, an ...

Efficient key derivation for end-to-end network security with traffic visibility

Patent Number: 8467527
Publication Date: 2013-06-18
Inventors: ;

Both end-to-end security and traffic visibility may be achieved by a system using a controller that derives a cryptographic key that is different for each client based on a derivation key and a client identifier that is conveyed in each data packet. The controller distributes the derivation key to information technology monitoring devices and a server to provide traffic visibility. For large key sizes, the key may be derived using a derivation formula as ...

Key evolution method and system of block ciphering

Patent Number: 8467526
Publication Date: 2013-06-18
Inventors: ;

A system and associated method for block ciphering. The method generates a key that is specific to a text block being encrypted and later being decrypted. The text block is encrypted by a block cipher encryption with the key. The encrypted text block is decrypted by a block cipher decryption with the key back to the text block. Altering a single bit in either the encrypted text block or the key results in unsuccessful decryption such that a decrypted text block is completely different from ...

Steganographic method and device

Patent Number: 8467525
Publication Date: 2013-06-18
Inventors: ;

An apparatus and method for encoding and decoding additional information into a stream of digitized samples in an integral manner. The information is encoded using special keys. The information is contained in the samples, not prepended or appended to the sample stream. The method makes it extremely difficult to find the information in the samples if the proper keys are not possessed by the decoder. The method does not cause a significant degradation to the sample stream. The method is used ...

Copy protected digital data

Patent Number: 8463814
Publication Date: 2013-06-11
Inventor:

The present invention relates to digital data comprising a passive part (2) comprising content (1) to be protected in encrypted form, an active part (3) comprising information (4) how to decrypt the content (1) comprised in the passive part (2) and a hidden part (6), wherein the active part (3) and the corresponding passive part (2) constitute an active content (8) and the hidden part (6) comprising information ...

Key protectors based on online keys

Patent Number: 8462955
Publication Date: 2013-06-11
Inventors: ; ; ; ; ;

An online key stored by a remote service is generated or otherwise obtained, and a storage media (as it applies to the storage of data on a physical or virtual storage media) master key for encrypting and decrypting a physical or virtual storage media or encrypting and decrypting one or more storage media encryption keys that are used to encrypt a physical or virtual storage media is encrypted based at least in part on the online key. A key protector for the storage media is stored, the key ...

Content encryption using at least one content pre-key

Patent Number: 8462954
Publication Date: 2013-06-11
Inventors: ;

In a method for encrypting content, the content is received in a device and at least a portion of the content is stored to thereby associate the content with one of a first copy control state and a second copy control state. The method includes creating at least one of a first content pre-key using a local storage key unique to the device as a key to encrypt the content ID of the content and a second content pre-key using the first content pre-key as a key to encrypt the first copy control ...

Communication system and method thereof

Patent Number: 8462953
Publication Date: 2013-06-11
Inventors: ; ;

A communication system for transmitting data of a first mobile station to a second mobile station includes a base station and a relay device. The base station is utilized for configuring an uplink and a downlink of the data to correspond to a first connection ID and a second connection ID respectively and for transmitting a traffic encryption key to the first and second mobile stations so that the first and second mobile stations share the traffic encryption key. The relay device is coupled ...

Synchronizing management signaling in a network

Patent Number: 8462952
Publication Date: 2013-06-11
Inventors: ;

A method includes receiving a communication from a management domain associated with managing a cellular communication network. The method also includes determining whether the communication corresponds to a polling signal from the management domain, and generating a first ping for transmission to a data center associated with managing virtual private networks (VPNs) in the cellular network in response to determining that the received signal corresponds to the polling signal. The method may ...

Method and apparatus for reducing probability of detection, improving jamming resistance and security for broadband wireless systems

Patent Number: 8462951
Publication Date: 2013-06-11
Inventors: ;

Systems and methods for generating OFDM signals are provided in which sub-carrier usage is selected and/or remapped in various manners. For example, in some embodiments remapping using a security sequence is employed; in other embodiments, decoy sub-carriers are employed; in other embodiments, mask sub-carriers are used to cover jammed portions of a ...

System and method for extracting, decoding, and utilizing hidden data embedded in audio signals

Patent Number: 8462950
Publication Date: 2013-06-11
Inventor:

A system and method for enabling a user to retrieve, decode, and utilize hidden data embedded in audio signals. An exemplary implementation includes a microphone structured to receive sound waves representative of an audio signal and hidden data embedded in the audio signal. The then microphone converts the received sound waves into an electrical output signal. The system also includes a processor electrically coupled to the microphone and configured to receive the electrical output signal ...

Method and apparatus for secure display of visual content

Patent Number: 8462949
Publication Date: 2013-06-11
Inventors: ; ; ;

Methods and apparatus for displaying visual content on a display such that the content is comprehensible only to an authorized user for a visual display system such as a computer, a television, a video player, a public display system (including but not limited to a movie theater), a mobile phone, an automated teller machine (ATM), voting booths, kiosks, security screening workstations, tactical displays and other systems where information is displayed for ...

System and method for protecting data of mobile phone

Patent Number: 8462948
Publication Date: 2013-06-11
Inventor:

In a method for protecting data of a mobile phone, the mobile phone includes a storage system. The storage system stores a plaintext file to be encrypted and an international mobile equipment identification (IMEI) number of the mobile phone. The IMEI number of the mobile phone and the plaintext file are read from the storage system. A ciphertext is generated from the plaintext file according to the IMEI number of the mobile phone using an encryption algorithm. The IMEI number of the mobile ...

Managing user access in a communications network

Patent Number: 8462947
Publication Date: 2013-06-11
Inventors: ;

A method of operating a node for performing handover between access networks wherein a user has authenticated for network access in a first access network. The method comprises receiving from a home network a first session key and a temporary identifier allocated to the user for the duration of a communication session. The identifier is mapped to the first session key, and the mapped identifier and key are stored at the node. A second session key is derived from the first session key and ...

Apparatus and method for storing and reading a file having a media data container and metadata container

Patent Number: 8462946
Publication Date: 2013-06-11
Inventors: ;

An apparatus for recording a file having a related media data container and a metadata container, the apparatus a receiver for receiving first data packets having packetized first media data samples based on a first clock, and for receiving second data packets having second media data samples based on a second clock different from the first clock, wherein the second media data samples are associated to the first media data samples, and for receiving first control packets including ...

Protecting video content using virtualization

Patent Number: 8462945
Publication Date: 2013-06-11
Inventors: ;

Generally, the present disclosure provides a system and method configured to prevent unauthorized copying of video content in a mobile device. The method may use virtualization technology to prevent unauthorized copying of the premium video content. A user OS may operate in a virtual machine. A hypervisor may be configured to prevent an application and/or a corrupted OS from reading premium video content from video memory. The hypervisor may be configured to prevent direct memory access to ...

Method of public key generation

Patent Number: 8462944
Publication Date: 2013-06-11
Inventors: ; ; ; ; ;

A potential bias in the generation of a private key is avoided by selecting the key and comparing it against the system parameters. If a predetermined condition is attained it is accepted. If not it is rejected and a new key is ...

Bandwidth efficient method and system for obscuring the existence of encryption in a communications channel

Patent Number: 8462943
Publication Date: 2013-06-11
Inventor:

A system, method, and network interface obscures the existence of data encryption in a communication network is provided. A set of characters is generated by using a set of encryption keys as an input to a pseudo-random function. Each character corresponds to an index value. The encrypted data is divided into a plurality of parts. Each part is sectioned into a plurality of groups. Each group of the plurality of groups is encoded by mapping the group to a character in the set of characters ...

Method and system for securing packetized voice transmissions

Patent Number: 8462942
Publication Date: 2013-06-11
Inventors: ;

An approach is provided for providing secure packetized voice transmissions. A public/private key pair is generated at a call device (or endpoint). An encrypted voice stream is received from another call device, where the encrypted voice stream was encrypted using a public key of the public/private key pair. This encrypted voice stream when received at the call device is decrypted using a private key of the public/private key ...

Encrypted stream processing circuit and method of processing encrypted stream

Patent Number: 8462941
Publication Date: 2013-06-11
Inventor:

An encrypted-stream processing circuit includes: a decryption mechanism decrypting an encrypted stream; a stream-data processing mechanism separating a plurality of packets included in a stream decrypted by the decryption mechanism in accordance with a packet identifier identifying the packet, and creating a partial stream by extracting a part from the stream under the control of a CPU (Central Processing Unit); and an encryption mechanism encrypting the partial stream, wherein the ...

Public key cryptosystem and associated method utilizing a hard lattice with O(n log n) random bits for security

Patent Number: 8462940
Publication Date: 2013-06-11
Inventor:

A public key cryptosystem utilizes a hard lattice with O(n log n) random bits for security. The system comprises a public-key cryptosystem whose hardness assumption is a clearly stated mathematical problem with a long history and comprises a short key, reaching a balance between the favorable properties of the hardness assumption and the key size. This balance has not been achieved by previously known public-key cryptosystems. The improved efficiency of the present system is achieved by ...

RNS-based cryptographic system and method

Patent Number: 8462939
Publication Date: 2013-06-11
Inventors: ;

The RNS-based cryptographic system and method uses a symmetric residue number system (RNS) for encryption and decryption of messages, i.e., the sender and receiver agree upon a set of relatively prime numbers, referred to as the basis, whose product is an integer, and both the RNS and the integer are kept secret. To break the cipher, an attacker must factor the secret integer, which is unknown to the attacker, given only the upper bound of the unknown integer, a problem referred to as blind ...

Method and system for continuously transmitting encrypted data of broadcast service to mobile terminal

Patent Number: 8457318
Publication Date: 2013-06-04
Inventor:

In service access networks having different key hierarchies that provide broadcast service to a mobile terminal, when switching from a first service access network, from which the mobile terminal receives the data of the broadcast service in an encrypted manner by a first data content encryption key, to a second service access network, from which the mobile terminal receives the data of the same broadcast service in an encrypted manner by a second data content encryption key, the mobile ...

Method for data privacy in a fixed content distributed data storage

Patent Number: 8457317
Publication Date: 2013-06-04
Inventor:

An archival storage cluster of preferably symmetric nodes includes a data privacy scheme that implements key management through secret sharing. In one embodiment, the protection scheme is implemented at install time. At install, an encryption key is generated, split, and the constituent pieces written to respective archive nodes. The key is not written to a drive to ensure that it cannot be stolen or otherwise compromised. Due to the secret sharing scheme, any t of the n nodes must be ...

Architecture for reconfigurable quantum key distribution networks based on entangled photons by wavelength division multiplexing

Patent Number: 8457316
Publication Date: 2013-06-04
Inventors: ;

A system and method for securing communications over a wave division multiplexing optical network between a plurality of users connected to the network. The system utilizes a primary optical source generator that is either tunable, or capable of generating a plurality of wavebands of different frequencies equal to the sum of wavebands serving individual users of the network to facilitate a key exchange between the individual users of the network using summed wavebands, each of which serving ...

Pilot transmission in a wireless communication system

Patent Number: 8457315
Publication Date: 2013-06-04
Inventor:

Techniques for transmitting pilot and traffic data are described. In one aspect, a terminal may scramble its pilot with a scrambling sequence generated based on a set of static and dynamic parameters. The static parameter(s) have fixed value for an entire communication session for the terminal. The dynamic parameter(s) have variable value during the communication session. The terminal may generate a scrambling sequence by hashing the set of parameters to obtain a seed and initializing a PN ...

Wireless video surveillance system and method for self-configuring network

Patent Number: 8457314
Publication Date: 2013-06-04
Inventor:

A mesh network surveillance system and method for providing communication between a base system having at least one wireless input capture device ICD(s) and other ICD(s), wherein the ICD(s) are operable to provide a self-configuring network with each other, including the steps of providing this base system; at least one user accessing the ICDs and inputs remotely via a user interface through a remote server computer and/or electronic device communicating with it, for providing a secure ...

Protocol expansion of a signaling message

Patent Number: 8457313
Publication Date: 2013-06-04
Inventor:

A bit sequence, which is contained in a signalling message and which is known to a network unit and to a communications terminal which receives the signalling message from the network unit, informs the communications terminal that a test value is contained in a signalling message. The test value received by the communications terminal is compared with a test value computed by the communications terminal, and the communications terminal defines a signalling message as being unmodified only ...

Cable length detection and signal compensation apparatus and method for a keyboard video mouse switch and extender

Patent Number: 8457312
Publication Date: 2013-06-04
Inventors: ;

An apparatus in a video signal transmission system for measuring cable length and compensating for cable loss is described. A number of pilot signals of different frequencies are compressed into one of the three color signals during the vertical sync periods in a time-division manner. The vertical and horizontal sync signals are compressed into the other two color signals. The video signal is transmitted over a cable having at least three pairs of wires, each color signal being transmitted ...

Protecting video as it is decoded by a codec

Patent Number: 8457311
Publication Date: 2013-06-04
Inventor:

In one aspect, a method includes: obtaining compressed video content within a video content processing module, a portion of a document structure of the compressed video content conforming to a predefined codec, the portion of the document structure including a plurality of video frames; decrypting the compressed video content in accordance with a digital rights management data encryption applied to the compressed video content; adding information in an extension frame associated with a ...

Print system, control method therefor, information processing apparatus, control method therefor, program for implementing the control method, and storage medium storing the control program

Patent Number: 8457310
Publication Date: 2013-06-04
Inventors: ; ; ; ; ;

A print system which are capable of inhibiting simultaneous use of the encrypted print and the box storage to thereby increase the security of print data. A host computer has an encryption function of encrypting print data, and issues a print job for the print data encrypted by the encryption function. A print server receives the issued print job, and has a decryption function of decrypting the encrypted print data of the received print job. A printer has a storage function of storing the ...

Private key compression

Patent Number: 8457309
Publication Date: 2013-06-04
Inventor:

Apparatus for ciphering, including a non-volatile memory, which stores a number from which a private cryptographic key, having a complementary public cryptographic key, is derivable, wherein the number is shorter than the private cryptographic key, and a processor, which is configured to receive an instruction indicating that the private cryptographic key is to be applied to data and, responsively to the instruction, to compute the private cryptographic key using the stored number and to ...

Communication system and method for protecting messages between two mobile phones

Patent Number: 8457308
Publication Date: 2013-06-04
Inventor:

A communication system and method for protecting messages between two mobile phones are provided. The method sets protective parameters in a first mobile phone, generates an encryption key and a decryption key according to the protective parameters, stores the decryption key into a storage device of the first mobile phone, and registers the encryption key to a second mobile phone through a wireless network. The method further encrypts a short message into an encrypted message in the second ...

Method and system for generating implicit certificates and applications to identity-based encryption (IBE)

Patent Number: 8457307
Publication Date: 2013-06-04
Inventor:

The invention relates to a method of generating an implicit certificate and a method of generating a private key from a public key. The method involves a method generating an implicit certificate in three phases. The public key may be an entity's identity or derived from an entity's identify. Only the owner of the public key possesses complete information to generate the corresponding private key. No authority is required to nor able to generate an entity's private ...

Cryptographic module and IC card

Patent Number: 8457306
Publication Date: 2013-06-04
Inventor:

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 the register retaining the first data and the register retaining the second data; and a left shift circuit that performs a predetermined shift operation on data outputted from ...

Generating genus 2 curves from invariants

Patent Number: 8457305
Publication Date: 2013-06-04
Inventors: ;

One or more techniques and/or systems are disclosed for generating a genus 2 curve for use in cryptography. One or more invariant values used to generate the genus 2 curve are determined by evaluating one or more invariant functions on a Hilbert modular surface. The genus 2 curve is generated using the one or more invariant values to determine an equation describing the genus 2 curve. A group is generated from the genus 2 curve, and the group may be used for a cryptographic ...

Efficient encoding processes and apparatus

Patent Number: 8457304
Publication Date: 2013-06-04
Inventor:

A method for encoding video includes receiving data, and encrypting the data using at least four Huffman trees. A method for encoding video includes receiving data, and encrypting the data such that an internal state of a stream cipher is independent of plaintext and ciphertext. A video encoding system for encoding video in a computing environment includes means for accessing data, and means for encrypting the data such that there are approximately 2^{106 ...}

Fault-resistant calculcations on elliptic curves

Patent Number: 8457303
Publication Date: 2013-06-04
Inventor:

Means for checking the correctness of a cryptographic operation on an elliptic curve E(Z/pZ), including fault-resistant computation of Q=kP on elliptic curve E(Z/pZ). Elliptic curve E^(Z/pr²Z)≡E(Z/pZ)×E(Z/r²Z) is given by Chinese remaindering and where r is an integer. A point P^=CRT(P (mod p), R (mod r²)) is formed in E^(Z/pr²Z); P^ reduces to P in E(Z/pZ), and to R in E₁(Z/r²Z). Q^=kP^ in E^(Z/pr²Z) is ...

Access-controlled data storage medium

Patent Number: 8457302
Publication Date: 2013-06-04
Inventors: ;

The invention relates to a data carrier (1) having a semiconductor chip (5). In order to prevent an attacker from determining secret data of the chip (5) from intercepted signal patterns of the chip (5), security-relevant operations are performed only with commands or command strings of the operating program whose use does not permit the processed data to be inferred from the signal ...

Efficient column based data encoding for large-scale data storage

Patent Number: 8452737
Publication Date: 2013-05-28
Inventors: ;

The subject disclosure relates to column based data encoding where raw data to be compressed is organized by columns, and then, as first and second layers of reduction of the data size, dictionary encoding and/or value encoding are applied to the data as organized by columns, to create integer sequences that correspond to the columns. Next, a hybrid greedy run length encoding and bit packing compression algorithm further compacts the data according to an analysis of bit savings. Synergy of ...

Methods and systems for secure channel initialization transaction security based on a low entropy shared secret

Patent Number: 8452017
Publication Date: 2013-05-28
Inventor:

Methods and systems for secure channel initialization transaction security between a client network element and a server network element are disclosed. In accordance with one embodiment of the present disclosure, the method includes: choosing a random client ephemeral private key at a client network element; utilizing the client ephemeral private key and the shared secret to create a client ephemeral public key at the client network element; forwarding the client ephemeral public key in a ...