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7278017 |
Method and device for secure wireless transmission of information
A method for secure transmission of information from a digital pen to a receiving device is provided. The method includes obtaining, in the digital pen, a message in the form of a plurality of...
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7277548 |
Cryptographic method and computer program product for use in wireless local area networks
An encryption system and method that may encrypt all of the transmitted and received data packets on the data link layer without collisions on the Initialization Vector (IV). In the encryption...
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7272226 |
Split-key key-agreement protocol
This invention relates to a method for generating a shared secret value between entities in a data communication system, one or more of the entities having a plurality of members for participation...
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7272228 |
System and method for securing code and ensuring proper execution using state-based encryption
A system and method for securing code segments and ensuring proper execution using state-based encryption is presented. A class loader captures a memory state snapshot and uses the memory state...
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7269736 |
Distributed cryptographic methods and arrangements
First and second computing devices are selectively operatively coupled together. The first device provides data to the second device. The second device can be a portable computing device. The...
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7269743 |
Method and apparatus for secure data mirroring a storage system
A secure data mirroring capability in a storage system includes encrypting data blocks in a primary volume in preparation for a data mirroring operation. The encrypted data blocks are mirrored to a...
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7269256 |
Electronic-monetary system
An improved monetary system using electronic media to exchange economic value securely and reliably is disclosed. The system provides a complete monetary system having electronic money that is...
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7266197 |
Method, system, device for proving the authenticity of an entity and/or the integrity and/or the authenticity of a message using specific prime factors
The proof is provided by means of the following parameters: a public module n formed by the product of f prime factors p i , f>2 a public superscript v; m base numbers g i , m>1. The base...
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7266199 |
Incorporating shared randomness into distributed cryptography
A method of distributed cryptography for high consequence security systems which employs shared randomness between operating parties. Shared randomness is accomplished by sharing cryptographic keys...
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7260215 |
Method for encryption in an un-trusted environment
A method and apparatus for secure distribution of information over a network, comprising: encrypting payload information using a first encryption key in a first data processor; sending the payload...
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7260552 |
Secure remote electronic voting system and cryptographic protocols and computer programs employed
The method employs interrelated cryptographic processes and protocols to provide reliability to vote casting, ballots recount, and verification of vote or poll results. These cryptographic...
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7257225 |
System and method for high speed reversible data encryption
The present invention provides systems and methods for facilitating encryption and decryption of data. In accordance with an exemplary embodiment of the present invention, an encryption key having...
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7254234 |
Method and apparatus for encrypting and decrypting information
An encryption key is generated in response to a plurality of information pieces being bases for the encryption key. Original information is encrypted into encryption-resultant information in...
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7251457 |
Wireless network perimeter security system using overlaying radio frequency signals
Methods, apparatuses and systems directed to securing a wireless network environment from eavesdropping and other unauthorized activities. One implementation prevents or disrupts meaningful access...
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7251325 |
Public key cryptosystem using finite non abelian groups
The present invention relates to a method of encryption and decryption comprises the steps of: selecting a generator and a first element of a first non abelian group, respectively, computing a...
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7248692 |
Method of and apparatus for determining a key pair and for generating RSA keys
In a method of determining a pair of numbers comprising a first number and a second number, in which the first number may be a first key and the second number may be a second key of an encryption...
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7248691 |
Hashing using multiple sub-hashes
A hashing structure including multiple sub-hashes is used to determine whether an input value matches one or more of multiple target values. These values can be of any form, such as security...
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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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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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7242769 |
Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method
The invention provides an enciphering apparatus and method, a deciphering apparatus and method and an information processing apparatus and method by which illegal copying can be prevented with...
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7239701 |
Key sharing method, secret key generating method, common key generating method and cryptographic communication method in ID-NIKS cryptosystem
Mapping is carried out at a point on an elliptic curve to be utilized for elliptic encryption based on identity information (ID information) of each entity and a mapping value is set to be a public...
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7237124 |
Contents recorder/reproducer
A unidirectional function circuit generates a first encryption key according to the device identification information stored in a device identification information holding unit. Another...
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7233664 |
Dynamic security authentication for wireless communication networks
In a first embodiment, a dynamic computer system security method and system using dynamic encryption and full synchronization between system nodes. A data record created by a source user is...
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7233663 |
Key generation performance improvement
A method, apparatus, and article of manufacture provide the ability to rapidly generate a large prime number to be utilized in a cryptographic key of a cryptographic system. A candidate prime...
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7231526 |
System and method for validating a network session
A system and method for preventing interception and decryption of information by an unauthorized party when that information is transmitted over a network is provided. A token is used to encrypt...
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7231041 |
Method, device, and system for secure motor vehicle remote keyless entry
Methods and apparatus are provided for sending an encrypted command message from a remote keyless entry device to a receiver in a motor vehicle. The method comprises defining a key generating key...
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7227951 |
Enhanced ANSI X9.17 pseudorandom number generators with forward security
Disclosed herein are apparatuses and methods for generating pseudorandom numbers by making the existing ANSI and FIPS PRNGs forward secure and eliminating the need for re-keying them. A forward...
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7227950 |
Distributed quantum encrypted pattern generation and scoring
Transaction scoring is performed in a distributed manner across a client-server computing system. A computing system for processing a transaction includes a server system and a client system. The...
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7227956 |
Simple encrypted transmission system suitable for intermittent signals
A signal transmitted from a first device to a second device is encrypted using an encryption key generated from a preceding part of the signal itself. The signal is decrypted in the second device...
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7221758 |
Practical non-malleable public-key cryptosystem
The present scheme improves the security of encrypted data or information by using of a practical public-key cryptosystem that is able to resist adaptive attacks. The disclosed scheme does not leak...
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7219082 |
Financial management system
A financial transaction network includes a customer network serviced by a host processor. The financial transaction network provides customers with a plurality of diverse and interchangeable...
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7218733 |
Encryption method, program for encryption, memory medium for storing the program, and encryption apparatus, as well as decryption method and decryption apparatus
The present invention relates to a cryptosystem. A keystream table [Ks] is a virtual data space. Every data of 1 byte in a secondary ciphertext E 2 provides a vector directional component IR. The...
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7215773 |
Key validation scheme
A method of providing improved security in a communication system used to transfer information between at least a pair of correspondents. The communication between the correspondents generally...
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7215771 |
Secure disk drive comprising a secure drive key and a drive ID for implementing secure communication over a public network
A secure disk drive is disclosed comprising a disk for storing data, and an input for receiving an encrypted message from a client disk drive, the encrypted message comprising ciphertext data and a...
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7212631 |
Apparatus and method for performing KASUMI ciphering
Techniques for efficient KASUMI ciphering are disclosed. In one aspect, one KASUMI round for generating a fractional portion of the KASUMI cipher is deployed with appropriate feedback such that...
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7212633 |
Expansion key generating device, encryption device and encryption system
An expansion key generating device that receives encryption key data as input, and outputs plural expansion key data, comprising: a data dividing unit operable to divide the encryption key data...
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7212632 |
Cryptographic key split combiner
A cryptographic key split combiner, which includes a number of key split generators for generating cryptographic key splits and a key split randomizer for randomizing the cryptographic key splits...
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7206408 |
Countermeasure method in an electronic component using a dynamic secret key cryptographic algorithm
A countermeasure method in a first electronic component communicating with a second electronic component uses a secret key K[0] cryptographic algorithm A of size k. The countermeasure...
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7206430 |
Data processing apparatus and method of processing data
A watermarking system comprises an encoding data processor operable to generate at least one marked version of an original item of material by introducing one of a predetermined set of code words...
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7206600 |
Method and apparatus of antenna detection and authentication
Briefly, a method and apparatus for decoding and authenticating an antenna is disclosed. The method may include detecting attachment of an antenna to a transmitter by authenticating a cipher...
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7206411 |
Rapid decryption of data by key synchronization and indexing
A satellite broadcast conditional access system with key synchronization uses indexing of an authorization stream to quickly restart the decrypting process after short carrier fades and after...
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7203657 |
General packet-based payment and transaction method and system
A method and system to enable data packets to engage in two-way transactions with various facilities, electronic equipment, and data sources, performing various services. This is accomplished by...
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7200225 |
Elliptic curve point ambiguity resolution apparatus and method
An apparatus for operating a cryptographic engine may include a key generation module for creating key pairs for encrypting substantive content to be shared between two users over a secured or...
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7197639 |
Cryptographic countermeasures against connection depletion attacks
This invention relates to cryptographic communications methods and systems that protect a server from a connection depletion attack. Specifically, the invention presents a method for allocating a...
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7194617 |
Method and apparatus to prevent the unauthorized copying of digital information
A method for authorizing the rendering of a digital recording. A first section and a last section of a track is first identified. A watermark is then decoded from the first and last sections of the...
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7194090 |
Encryption apparatus, decryption apparatus, expanded key generating apparatus and method therefor, and recording medium
Expanded key schedule circuit for common key encryption system in which expanded keys are used in a predetermined order in data randomizing process for encryption and in a reversed order in data...
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7191344 |
Method and system for controlling access to data stored on a data storage device
A system and method of data encryption and decryption for controlling access to a data storage device such as a hard disk drive or optical drive is provided. The invented method utilizes data...
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7190790 |
Multiple module encryption method
The present invention proposes an encryption/decryption method able to resist against various attack strategies such as Simple Power Analysis, Timing Analysis or Differential Power Analysis. The...
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7190789 |
Method and apparatus for finite field basis conversion
A method and systems provided for basis conversion in a cryptographic system. The method comprises the steps of a first correspondent transmitting an element represented in the first basis to an...
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7181602 |
Method for exchanging at least one secret initial value between a processing station and a chip card
The invention relates to a method for exchanging at least one secret initial value between a processing station and a chip card, in an initializing step for the chip card. In the initialization of...
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