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Document Title |
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7623656 |
Stream cipher encryption and message authentication
Stream cipher encryption and message authentication. Stream cipher encryption is performed by generating a keystream at the transmitting end from a state value, applying the keystream to plaintext...
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7620809 |
Method and system for device registration within a digital rights management framework
A method of registering network devices in a digital rights management system (DRMS) includes receiving a digital certificate transmitted by the network device requesting registration and verifying...
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7587607 |
Attesting to platform configuration
Receiving a request for an attestation of platform configuration from an attestation requestor, receiving an acceptable configuration, and if the platform matches the acceptable configuration,...
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7587045 |
System and method for securing document transmittal
The present invention is directed to a system and method for secure transmission of electronic document data on a network. The method begins with the receipt of user identification data associated...
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7570766 |
Transparently embedding non-compliant data in a data stream
Systems, methods, and data structures for transparently embedding non-compliant data in a data stream are described. One method includes embedding random encryption/decryption information into an...
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7568105 |
Parallel distribution and fingerprinting of digital content
Distributing information, including the steps of watermarking the digital content, distributing the digital content using a multi-source system, and partially fingerprinting digital content at each...
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7567670 |
Verification information for digital video signal
According to some embodiments, verification information is provided for a digital video signal. For example, a digital video signal including a first portion and a second portion may be determined...
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7526091 |
Method for transmitting and receiving control information for encryption in a mobile communication system supporting multimedia broadcast/multicast service
A method for minimizing overhead occurring caused by control information for encryption performed to protect MBMS data for an MBMS service in a mobile communication system. This method is...
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7526656 |
Encryption/decryption system and method for the same
An encryption/decryption system capable of supplying data only to a user making a request. A computer encrypts data with a common key, encrypts the common key with a public key, and transmits the...
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7519177 |
Method and system for processing a data set
A method and system for processing a data set. More particularly, the present invention provides a method and system for encrypting or decrypting a data set so that the data set remains entirely in...
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7512804 |
Data storage security apparatus and system
A data storage device is secured by extracting timing information encoded within a password-related symbol stream received by the storage device and denying access if the timing information is...
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7512972 |
Synchronizing for digital content access control
A method and apparatus for digital content access control comprises determining the occurrence of a synchronization event that triggers synchronization of information used by one or more content...
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7512805 |
Machine readable medium and method for data storage security
A data storage device is secured by extracting timing information encoded within a password-related symbol stream received by the storage device and denying access if the timing information is...
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7509250 |
Hardware key control of debug interface
In one embodiment, a system comprises debug functionality, a debug interface communicatively coupled to the debug functionality, and a hardware key interface. Communication with the debug...
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7502466 |
System and method for secure communication of electronic documents
The present invention is directed to a system and method for secure communication of electronic documents to a document processing device. A document processing request containing electronic...
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7486792 |
Terrestrial broadcast copy protection system for digital television
According to the invention, a method for protecting digital television from unauthorized digital receivers within a population of digital receivers is disclosed. Each digital receiver in the...
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7457410 |
Transmission/reception system
A server and a client hold common secret information in respective secret information holding units. A server Cyclic Redundancy Check (CRC) unit in the server generates a CRC code after adding the...
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7428306 |
Encryption apparatus and method for providing an encrypted file system
An encryption apparatus and method for providing an encrypted file system are provided. The encryption apparatus and method of the illustrative embodiments uses a combination of encryption...
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7421075 |
Wireless online cryptographic key generation method
A system and method for wireless cryptographic key exchange among participants in a wireless computing network is presented. This allows the authorized participants in the wireless communication...
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7412061 |
Encrypting a digital object on a key ID selected therefor
To encrypt a digital object, a key ID is selected for the digital object, and a function ƒ( ) having an input and an output is selected. The selected key ID is then employed as the input to the...
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7412058 |
Digital receiver and method for receiving secure group data
A method and radio receiver are provided for receiving and deciphering RF signals having encrypted data information relevant to the receiver environment. According to one aspect of the present...
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7400723 |
Secure method for secret key cryptographic calculation and component using said method
A secured method of cryptographic computation to generate output data from input data and from a secret key includes a derived key scheduling step to provide a derived key from the secret key...
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7386124 |
Block encoding method and block encoding/decoding circuit
A block cipher method eliminates the overhead associated with key scheduling, decreases the required time for encryption or decryption, and increases the total throughput. A key scheduling circuit...
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7382820 |
Spread spectrum modulation system and method for embedding digital information into digital or analog media
A system and method for embedding information into digital media and later detecting the embedded information using a unique spread spectrum modulation technique. In general, the present invention...
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7380132 |
Data recording method and apparatus, data record medium and data reproducing method and apparatus
An input is ciphered in at least one of a sector forming circuit 13 , a scrambling circuit 14 , a header appendage circuit 15 , an error correction encoding circuit 16 , a modulation circuit ...
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7356149 |
Information processing method and apparatus, computer program, and computer-readable storage medium
An object of this invention is to eliminate the necessity to manage a plurality of keys even when image data having a plurality of tiles and layers is encrypted using different encryption keys for...
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7353209 |
Releasing decrypted digital content to an authenticated path
Digital content is released to a rendering application for forwarding by such rendering application to an ultimate destination by way of a path therebetween. The path is defined by at least one...
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7336783 |
Cryptographic systems and methods supporting multiple modes
Cryptographic systems and methods that support multiple modes of operation, such as CBC, CTR and/or CCM modes. In one aspect, a method for encrypting data includes reading a plaintext data block...
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7333613 |
Cyphering of the content of a memory external to a processor
A method of cyphering, by an integrated processor, of a set of data to be stored in a memory, including performing, in a continuous operation following a data flow, the steps of dividing the data...
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7321659 |
Simple universal hash for plaintext aware encryption
A simple universal hash apparatus and method include input means for inputting at least one of a plurality of Plaintext blocks into an integrity aware encryption scheme using at least one of two...
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7305084 |
Fast encryption and authentication for data processing systems
Methods and apparatus are presented for secure, authenticated communication and data storage. The methods can be based on other methods such as IAPM, in which the encryption and authentication keys...
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7298841 |
Stegotext encoder and decoder
The invention comprises an encoder for encoding a stegotext and a decoder for decoding the encoded stegotext, the stegotext being generated by modulating the log power spectrogram of a covertext...
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7298850 |
Encrypting keypad module
An encrypting keypad module ( 30 ) comprising a keypad ( 40 ) and an encryption unit ( 42 ) is described. The encryption unit ( 42 ) includes an interpreter ( 56 ) for receiving a file ( 150 )...
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7295672 |
Method and apparatus for fast RC4-like encryption
A method and apparatus for encrypting information. In one embodiment, a method for encrypting information includes obtaining a value A from an array having a plurality of values and determining a...
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7280658 |
Systems, methods, and computer program products for accelerated dynamic protection of data
A system, method, and computer product that accelerates encryption and decryption of data while using both a static key and a dynamic key. The present invention eliminates intermediate decryption...
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7280659 |
Pseudorandom number generating apparatus or encryption or decryption apparatus using the same
In a buffer and a state included in a pseudorandom number generating apparatus, the state has the configuration of assuming that the unit length of data processing is n, the state has a size of...
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7277543 |
Cryptographic combiner using two sequential non-associative operations
A stream cipher cryptosystem includes a keystream generator receiving a key and providing a keystream. A cryptographic combiner combines a first binary data sequence and the keystream with two...
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7254232 |
Method and system for selecting encryption keys from a plurality of encryption keys
A method and system of alternatively selecting an encryption key used to transmit a known number data bits and providing sufficient information to inform the receiving part of the selected...
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7246235 |
Time varying presentation of items based on a key hash
A method for key verification through time varying item presentation based on a key hash result comprises generating a key hash result partially based on both a global identifier provided from a...
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7242770 |
Secure encryption/decryption for elevators
This system relates to a secure encryption/decryption protocol for elevator displays and controls. The protocol uses an algorithm to scramble information before transmission and reassemble it after...
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7242768 |
Super secure migratable keys in TCPA
A method for providing security with a secure chip, includes: creating a migratable keyblob using a first random number, where the migratable keyblob contains a key; wrapping the migratable keyblob...
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7224795 |
Variable-length key cryptosystem
A variable-length key cryptosystem is provided, in which the amount of parameters for generating a key to be shared is small, security is high, and calculation cost is small. The length of a plain...
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7124442 |
System and method for insertion and retrieval of microthreads in transmitted data
A system for the insertion of microthreads in transmitted data is provided. The system includes a digital content system providing carrier data, such as sampled audio data. A microthread insertion...
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7120249 |
Methods and systems for generating encryption keys using random bit generators
A security key, such as an encryption key, is generated so as to make it more difficult for eavesdroppers to identify the key. Specifically, a cryptographically secure random number generator...
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7113592 |
Method and device for loading input data into a program when performing an authentication
A method for enhancing data security when chip cards are used for payment transactions and input data are loaded into an algorithm when performing an authentication. The security of the debit and...
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7111171 |
Parallel distribution and fingerprinting of digital content
Distributing information, including the steps of watermarking the digital content, distributing the digital content using a multi-source system, and partially fingerprinting digital content at each...
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7103181 |
State-varying hybrid stream cipher
In one embodiment, a state-varying hybrid stream cipher operating within a computing device. The state-varying hybrid stream cipher comprises at least two software routines. A first routine is...
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7095850 |
Encryption method and apparatus with forward secrecy and random-access key updating method
An encryption method and apparatus that provides forward secrecy, by updating the key using a one-way function after each encryption. By providing forward secrecy within a cipher, rather than...
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7080257 |
Protecting digital goods using oblivious checking
Oblivious checking of a digital good is performed by identifying a plurality of key instructions within a function of a digital good. Each key instruction is an instruction that possibly modifies a...
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7076538 |
Method and system for disguising a computer system's identity on a network
A method and system are disclosed for substituting an anonymous Universal Unique Identifier (UUID) for a computer system's real UUID in order to disguise an identity of the computer system to an...
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