| 7043642 |
Process to manage data in a chip card |
| May-9-2006 |
The invention concerns a method for duplicating data contained a smart card memory in the memory of another smart card, which consists in producing for said other card another management code, another... |
| 7043018 |
Prime number generation method, prime number generation apparatus, and cryptographic system |
| May-9-2006 |
A prime number generation method for efficiently generating prime numbers that are highly resistant to the P-1 and P+1 methods. These prime numbers are used in a cryptosystem. Prime candidates are first... |
| 7039803 |
Method for broadcast encryption and key revocation of stateless receivers |
| May-2-2006 |
A tree is used to partition stateless receivers in a broadcast content encryption system into subsets. Two different methods of partitioning are disclosed. When a set of revoked receivers is identified,... |
| 7039617 |
Currency and float ID tracking in an electronic purse |
| May-2-2006 |
The present invention relates to electronic purse systems, and in particular it relates to the improved management of multiple money flows in such systems. According to the basic principles of the present... |
| 7039191 |
Chaining key broadcasting reception system and chaining key broadcasting reception method |
| May-2-2006 |
In the chaining key broadcasting reception system, a chaining key reception unit receives a chaining key, an identifier of the key in question and a target key identifier indicative of a chaining key to... |
| 7035411 |
Encryption method and apparatus encrypting and adding signature information to qubits |
| Apr-25-2006 |
Arbitrary quantum information is input. The information of a quantum two-state system is acquired as a qubit by performing a computation in consideration of a physical system. The acquired qubit is encrypted.... |
| 7032109 |
Method and system for ensuring the security of service supplies broadcast on a computer network of the internet type |
| Apr-18-2006 |
The invention concerns a method and a system enabling users (11) of an Internet type computer network provided with multimedia terminals (16) comprising a microphone (17) and connected... |
| 7024561 |
Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method |
| Apr-4-2006 |
A recording apparatus generates key information based at least on contents reproduction permission information, encrypts contents based on the key information, and records the encrypted contents and recording... |
| 7024553 |
System and method for updating encryption key for wireless LAN |
| Apr-4-2006 |
System for updating an encrypted key, by means of which the WEP of IEEE 802.11 can be applied to a wireless LAN system having plural APs and a large number of STAs. A key management server is LAN-connected... |
| 7023998 |
Cryptographic key processing and storage |
| Apr-4-2006 |
A method and apparatus enhancing the security of an encrypted cryptographic key by storing its key re-transforming information in a decryption store that is separate from a cryptographic key store, which... |
| 7023997 |
Secure messaging communication system |
| Apr-4-2006 |
A secure telecommunication system 10 is provided that allows for communication between a device 14 and a receiving device 16 of encrypted data messages through a data communications network... |
| 7023990 |
Secure parameter generating device and parameter generating method in algebraic curve crytography |
| Apr-4-2006 |
The Stickelberger element computing device computes a Stickelberger element ω in an ab cyclotomic; the Jacobian addition candidate value computing device computes the Jacobian addition candidate... |
| 7020779 |
Secure, distributed e-mail system |
| Mar-28-2006 |
An e-mail handling system, wherein e-mail messages are entered, transported and stored, comprises a central key repository, means for encrypting a message using a key associated with the message, means... |
| 7020287 |
Method and system for key insertion for stored encrypted content |
| Mar-28-2006 |
An encrypted content transport stream is received by a viewer's device and recorded for subsequent playback. During recording, keys in headers of packets of the stream are stripped and placed in sequence... |
| 7016498 |
Encrypting a digital object on a key ID selected therefor |
| Mar-21-2006 |
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 function... |
| 7016497 |
Data decryption system |
| Mar-21-2006 |
A system (100) and method (400, 500) for data encryption and decryption are disclosed. The encryption system is operable at encryption rates in excess of 10 Mbps and is expandable to over 200... |
| 7016495 |
Multiple level access system |
| Mar-21-2006 |
A method of securing an object at an access level includes selecting a profile for a user, including a credential having an encrypted credential public key, an encrypted credential public key encryption... |
| 7016493 |
Key matrix system |
| Mar-21-2006 |
A system (100) and method (400, 500) for data encryption and decryption are disclosed. The encryption system is operable at encryption rates in excess of 10 Mbps and is expandable to over 200... |
| 7013190 |
Model management system and apparatus |
| Mar-14-2006 |
A model management apparatus capable of efficient management of bulk data which has a large amount of information. When new bulk data is stored in bulk data storing means of an in-process server, encrypting... |
| 7013010 |
Method and apparatus for optimally formatting media key blocks stored on media with high transfer latencies |
| Mar-14-2006 |
A method and apparatus to format and process a Media Key Block so as to reduce latencies when processing the Media Key Block. A new record is generated containing header information for the records comprising... |
| 7012932 |
Digital broadcast data receiving apparatus |
| Mar-14-2006 |
A digital broadcast data receiving apparatus comprises a plurality of broadcast data receiving units for receiving digital broadcast data supplied from a plurality of digital broadcast data sources, respectively... |
| 7010808 |
Binding digital content to a portable storage device or the like in a digital rights management (DRM) system |
| Mar-7-2006 |
Digital content is rendered on a device by transferring the content to the device and obtaining a digital license corresponding to the content. A sub-license corresponding to and based on the obtained... |
| 7010806 |
Dynamic downloading of keyboard keycode data to a networked client |
| Mar-7-2006 |
The present invention is directed toward dynamic downloading of keyboard keycode data to a networked client. According to one or more embodiments of the present invention, a user logs into a networked... |
| 7010691 |
ABDS system utilizing security information in authenticating entity access |
| Mar-7-2006 |
AA system in which a requesting entity seeking access to a controlled resource is authenticated by an access authentication component includes the requesting entity initially opening a security account... |
| 7010685 |
Method and apparatus for storing scrambled digital programs by filtering product identifier |
| Mar-7-2006 |
In accordance with one embodiment, a method for storing a normal scrambled digital program is provided. The method includes receiving a scrambled program, and receiving a plurality of access requirements.... |
| 7010124 |
Location dependent key for decrypting copy protected material on a recording medium |
| Mar-7-2006 |
Information to be recorded is encrypted using an encryption key based on information inherent in a recording medium. The information inherent in the recording medium is specific information on a disk.... |
| 7010127 |
Cryptographic communication method, file access system and recording medium |
| Mar-7-2006 |
A cryptographic communication method is provided in which a cryptographic communication is performed by an easy operation even if both enciphered data and unenciphered data are mixed to be handled. In... |
| 7006633 |
Global encryption system |
| Feb-28-2006 |
A system and method for encryption, transmission and decryption of data based on a publicly or other wide area broadcast random number sequence. Encryption is by a selected subsequence from the broadcast... |
| 7006629 |
Method and system for processing a data set |
| Feb-28-2006 |
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 the... |
| 7003117 |
Identity-based encryption system for secure data distribution |
| Feb-21-2006 |
A system is provided that allows encrypted content to be distributed to users over a communications network. A policy enforcement service may use an identity-based encryption algorithm to generate public... |
| 7003111 |
Method, system, and program, for encoding and decoding input data |
| Feb-21-2006 |
Provided is a method, system, and program for encoding and decoding input data. A key is generated comprising a list of a plurality of binary values, wherein the key is available to a user during decoding.... |
| 7003116 |
System for encrypted file storage optimization via differentiated key lengths |
| Feb-21-2006 |
A key management module is utilized to improve efficiency in cryptographic systems. The key management module may monitor file usage and recommend (and/or implement) key pair changes. In particular, the... |
| 7003108 |
Data encryption methodology |
| Feb-21-2006 |
A system (100) and method (400, 500) for data encryption and decryption are disclosed. The encryption system is operable at encryption rates in excess of 10 Mbps and is expandable to over 200... |
| 6999948 |
Memory card |
| Feb-14-2006 |
A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption... |
| 6996724 |
Secret key generating method, common key generating method, encryption method, cryptographic communication method and cryptographic communication system |
| Feb-7-2006 |
At the time when generating a secret key of each entity by using each divided identification information (ID division vector) obtained by dividing identification information (ID vector) of each entity... |
| 6996546 |
System and methods for digital receipts |
| Feb-7-2006 |
A secure system for creating digital receipts, while minimizing the amount of data that is encoded in the digital receipt. The digital receipt provides authentication for a transaction. A digital receipt... |
| 6996238 |
Method for generating and looking-up transaction keys in communication networks |
| Feb-7-2006 |
Method and apparatus for generating keys for encoding data for transmission, a device identification is accessed and at least one key corresponding to the device identification. Data is encoded using at... |
| 6993135 |
Content processing system and content protecting method |
| Jan-31-2006 |
A content processing system for use in an electronic apparatus includes a unit for acquiring first revocation list information corresponding to a first media type, and a unit for recording the first revocation... |
| 6990580 |
Information providing apparatus and method, information processing apparatus and method, and program storage medium |
| Jan-24-2006 |
Contents and its key are supplied in different procedures. License management program authenticates telephone-integrated terminal device and authenticates first server or second server. Server LCM controls... |
| 6990470 |
Method and system for conducting secure payments over a computer network |
| Jan-24-2006 |
A secure method of conducting an electronic transaction over a public communications network is provided which utilizes a pseudo-expiration date in the expiration date field of an authorization request.... |
| 6990201 |
Method for testing a random number source and electronic devices comprising said method |
| Jan-24-2006 |
The invention concerns a method for testing sources generating random numbers, particularly sources set up in the context of cryptographic systems such as random number generators incorporated in chip... |
| 6986054 |
Attack-resistant implementation method |
| Jan-10-2006 |
The present invention makes it difficult for unauthorized parties to estimate processing and a secret key based upon the waveforms of power consumption of an IC card chip by changing a processing order... |
| 6986050 |
Computer security method and apparatus |
| Jan-10-2006 |
A method of securing data stored on an electronic device 1, the method comprising encrypting the data using a cryptographic key derivable from or accessed using a passphrase, requiring the entry into... |
| 6986040 |
System and method of exploiting the security of a secure communication channel to secure a non-secure communication channel |
| Jan-10-2006 |
The present invention features a system and method for establishing a secure communication channel between a client and an application server. In one embodiment, a ticket service generates a ticket having... |
| 6985591 |
Method and apparatus for distributing keys for decrypting and re-encrypting publicly distributed media |
| Jan-10-2006 |
The present invention provides secure communication from one encryption domain to another using a trusted module. In one embodiment, the invention includes receiving a first key for decryption of encrypted... |
| 6985583 |
System and method for authentication seed distribution |
| Jan-10-2006 |
In one embodiment of a user authentication system and method according to the invention, a device shares a secret, referred to as a master seed, with a server. The device and the server both derive one... |
| 6983369 |
Authentication system, and contents-information sender and receiver |
| Jan-3-2006 |
First information is sent from a contents-information receiver apparatus to a contents-information sender apparatus. The first information includes a combination of certificate information and second information... |
| 6983367 |
Information providing apparatus and method, information processing apparatus and method, and program storage medium |
| Jan-3-2006 |
The present invention is intended to quickly download contents while preventing unauthorized contents usage. PD authentication program authenticates telephone-integrated terminal device. Server authentication... |
| 6981138 |
Encrypted key cache |
| Dec-27-2005 |
A file that has been encrypted using a symmetric key and that has a corresponding access control entry with the symmetric key encrypted using the public key of a public/private key pair can be accessed.... |
| 6980971 |
Copyright management apparatus, copyrighted-work distribution apparatus, and copyrighted-work distribution and receiving system |
| Dec-27-2005 |
A TV music broadcasting program is distributed from a distribution apparatus through a ground station and a satellite, and a musical-piece program is also distributed through a plurality of audio channels.... |
