| 7043752 |
System and user interface supporting concurrent application initiation and interoperability |
| May-9-2006 |
A system and associated communication protocol enables Internet compatible applications to be integrated into any process involving concurrent operation of applications. A system employed by a first application... |
| 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... |
| 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... |
| 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... |
| 7039186 |
Encryption key generation circuit |
| May-2-2006 |
An encryption key generation circuit for generating at least one 128-bit round sub key used in at least one sub round for encryption of 128-bit plaintext, from an encryption key having 64×n bits (2≦n≦4;... |
| 7036012 |
Method and system for secure cashless gaming |
| Apr-25-2006 |
A secure cashless gaming system comprises a plurality of gaming devices which may or may not be connected to a central host network. Each gaming device includes an intelligent data device reader which... |
| 7035408 |
Method to generate pseudo-random sequence of multi-carrier data symbols, and related transmitter and receiver |
| Apr-25-2006 |
To generate a pseudo-random sequence (PRMS1) of multi-carrier data symbols (DMT0, DMT1, DMT2), a pseudo-random bit sequence (PRBS1) is produced by repetitively generating... |
| 7031468 |
Speed enhanced cryptographic method and apparatus |
| Apr-18-2006 |
A method for performing a cryptographic operation involving transforming digital information is described. A digital operator is provided that has a component selected from a large set of elements. The... |
| 7028187 |
Electronic transaction apparatus for electronic commerce |
| Apr-11-2006 |
A system for open electronic commerce having a customer trusted agent securely communicating with a first money module, and a merchant trusted agent securely communicating with a second money module. Both... |
| 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... |
| 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... |
| 7023992 |
Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device |
| Apr-4-2006 |
In a data multiplexing device which multiplexes and transmits the transport stream packets of program data consisting of a plurality of data elements constructed in the form of transport stream packets,... |
| 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... |
| 7020282 |
Simplified secure, swift cryptographic key exchange |
| Mar-28-2006 |
One aspect of the present invention establishes a session key by a receiving unit R transmitting a plurality of quantities for storage in a public repository. A sending unit S: |
| 7017041 |
Secure communications network with user control of authenticated personal information provided to network entities |
| Mar-21-2006 |
A communications network is provided for securing communications and updating user identity information. A symmetric crypto-key, an asymmetric crypto-key having first and second private key portions and... |
| 7016494 |
Multiple cryptographic key precompute and store |
| Mar-21-2006 |
A method and apparatus provides cryptographic parameters for use in cryptographic applications in response to requests therefor. The method includes the steps of: pre-computing one or more different types... |
| 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... |
| 7007050 |
Method and apparatus for improved pseudo-random number generation |
| Feb-28-2006 |
A pseudo-random number generator (PRNG) for a cryptographic processing system is disclosed in which the PRNG is reseeded at each instance of input entropy and in which a standard timestamp variable used... |
| 7003665 |
Method for the secure transmission of messages |
| Feb-21-2006 |
A method and system for the secure transmission of messages between at least two users of a telecommunications network, using a secret, random binary encryption key, which is used once for encryption.... |
| 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.... |
| 7003107 |
Hybrid stream cipher |
| Feb-21-2006 |
In one embodiment, a hybrid stream cipher operating within a computing device. The hybrid stream cipher comprises at least two software routines. A first routine is responsible for dividing incoming plain... |
| 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... |
| 7003109 |
Compact crypto-engine for random number and stream cipher generation |
| Feb-21-2006 |
A compact dual function Random Number Generator and Stream Cipher Generator includes a Crypto-engine has a controller for controlling the engine to operate in one or other of its functions. The Crypto-engine... |
| 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... |
| 6996721 |
Flash device security method utilizing a check register |
| Feb-7-2006 |
A security method for preventing accidental or unauthorized writes to a flash memory. According to one embodiment of the present invention, a BIOS program stored in a flash memory array generates a random... |
| 6996719 |
Secure password entry |
| Feb-7-2006 |
The invention provides a mechanism for a secure password entry by using cryptographic functions. This mechanism is applicable to the access of computers and programs. Upon a request of a program E a password... |
| 6990200 |
Encryption method, cryptographic communication method, ciphertext generating device and cryptographic communication system of public-key cryptosystem |
| Jan-24-2006 |
Two public keys including a random number term therein are prepared in a database for each divided plaintext in advance, a plaintext is divided into a plurality of 1-bit divided plaintexts, one public... |
| 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... |
| 6988205 |
Method and apparatus for the secure storage of audio signals |
| Jan-17-2006 |
A method and apparatus for recording audio so that the recording can be authenticated as to both content and time of recording is provided. The system may be implemented as a central server that is accessed... |
| 6987853 |
Method and apparatus for generating a group of character sets that are both never repeating within certain period of time and difficult to guess |
| Jan-17-2006 |
A method and apparatus for generating a group of non-repetitive, difficult-to-guess character sets is disclosed. The method includes (a) generating a request for a character set by a client of a character-generating... |
| 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... |
| 6981137 |
System for broadcasting to, and programming, a mobile device in a protocol |
| Dec-27-2005 |
The present invention is directed, in one embodiment, to a programming interface which enables device/protocol/network independent transmission of messages to, and programming of, mobile devices. In another... |
| 6980795 |
Wireless network with a cipher key change procedure |
| Dec-27-2005 |
A wireless network employing a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and which are... |
| 6980657 |
Communications system using chaotic synchronized circuits |
| Dec-27-2005 |
A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. In an embodiment of the invention employing a Chua circuit as the basic chaotic circuit, the transmitter... |
| 6980651 |
Method for using an access card to create a secure sub-network on a public network |
| Dec-27-2005 |
A method for creating a secure sub-network on a public network that includes a set of devices. The secure sub-network is to include a subset of devices from among the set of devices. An access card is... |
| 6978367 |
Selective data encryption using style sheet processing for decryption by a client proxy |
| Dec-20-2005 |
A method, system, and computer program product for selectively encrypting one or more elements of a document using style sheet processing. Disclosed is a policy-driven augmented style sheet processor (e.g.... |
| 6975730 |
Method and apparatus for contents information |
| Dec-13-2005 |
A first-key signal representative of a first key is generated from first-key base information being a base of the first key. Contents information is encrypted into encryption-resultant contents information... |
| 6975726 |
Data transmission system |
| Dec-13-2005 |
A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information... |
| 6973187 |
Block encryption method and schemes for data confidentiality and integrity protection |
| Dec-6-2005 |
A block encryption method and schemes (modes of operation) that provide both data confidentiality and integrity with a single cryptographic primitive and a single processing pass over the input plaintext... |
| 6973188 |
Analog scrambler |
| Dec-6-2005 |
A method for scrambling/descrambling an analog signal includes receiving an analog signal and converting the signal into an intermediate frequency signal. A Gaussian pseudo-random noise signal is generated... |
| 6970843 |
Financial management system |
| Nov-29-2005 |
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 financial... |
| 6970561 |
Encryption and decryption with endurance to cryptanalysis |
| Nov-29-2005 |
An encrypting apparatus includes an encrypting operation section, a determining section and a control section. The encrypting operation section carries out an encrypting operation to a plaintext using... |
| 6970562 |
System and method for crypto-key generation and use in cryptosystem |
| Nov-29-2005 |
A first processor generates a private crypto-key and a public crypto-key. The first processor divides the private crypto-key into two portions, a first private key portion, based upon a user's password,... |
| 6968060 |
Method for verifying the use of public keys generated by an on-board system |
| Nov-22-2005 |
For a set (Lk) of embedded systems, an authorized operator with identifier (OPj) creates a mother public key (KpM) and a mother private key (KsM). The identifier (OPj), the range... |
| 6965674 |
System and method for providing WLAN security through synchronized update and rotation of WEP keys |
| Nov-15-2005 |
A system and method are disclosed that overcome deficiencies of prior art IEEE 802.11 WEP key management schemes. Preferred embodiments of the present system and method update WEP keys and rotate transmission... |
| 6961849 |
Selective data encryption using style sheet processing for decryption by a group clerk |
| Nov-1-2005 |
A method, system, and computer program product for selectively encrypting one or more elements of a document using style sheet processing. Disclosed is a policy-driven augmented style sheet processor (e.g.... |
| 6961426 |
Cascaded stream cipher |
| Nov-1-2005 |
A pseudo-random number generating circuit and method, comprising: a plurality of pseudo-random number generator (PRNG) units combined in a cascade structure of several layers to produce a pseudo-random... |
| 6961427 |
Methods and apparatus for keystream generation |
| Nov-1-2005 |
Methods and apparatus for the generation of a cryptographic one way function (a key or keystream generator) for use in encrypting or decrypting binary data. A non-linear key or keystream generation algorithm... |
