| 6549626 |
Method and apparatus for encoding keys |
| Apr-15-2003 |
A key such as a private key or key password of a private key is encrypted for storage, and may be decrypted if the private key becomes lost or unavailable. The key is encrypted by encoding, for example,... |
| 6535607 |
Method and apparatus for providing interoperability between key recovery and non-key recovery systems |
| Mar-18-2003 |
A method and apparatus for ensuring that a key recovery-enabled (KR-enabled) system communicating with a non-KR-enabled system in a cryptographic communication system transmits the information necessary... |
| 6535136 |
Proximity card detection system |
| Mar-18-2003 |
A security system comprises a card containing access information, a reader for reading the card, a power source, a locking mechanism, and a first circuit for operating the locking mechanism. The power... |
| 6532543 |
System and method for installing an auditable secure network |
| Mar-11-2003 |
A system and method for generating and remotely installing a private secure and auditable network is provided. Node identification, link, and application information is input into a template. A generator... |
| 6529601 |
Method and apparatus for polarization-insensitive quantum cryptography |
| Mar-4-2003 |
A communication system uses quantum cryptography for the secure distribution of a key. A single-photon signal is phase-modulated and transmitted over a pair of time-multiplexed transmission paths. With... |
| 6526509 |
Method for interchange of cryptographic codes between a first computer unit and a second computer unit |
| Feb-25-2003 |
The method provides that a session code (K) can be agreed between a first computer unit (U) and a second computer unit (N), without it being possible for any unauthorized third party to gain access to... |
| 6526144 |
Data protection system |
| Feb-25-2003 |
A method of communicating from a transmitter to a receiver over a communication medium. For the transmitter, the method includes the step of formatting data into a data stream to be communicated across... |
| 6516064 |
Signal recording apparatus, signal record medium and signal reproducing apparatus |
| Feb-4-2003 |
A signal reproducing apparatus in which unauthorized decoding or copying is rendered difficult. The apparatus is configured for reproducing ciphered data from a disc-shaped record medium 101 on which there... |
| 6510519 |
Conditional access system |
| Jan-21-2003 |
A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of step top... |
| 6510517 |
Method of cryptological authentification in a scanning identification system |
| Jan-21-2003 |
The method of cryptological authentification in a scanning identification system comprising a base station, which supplies energy via the alternating field to a transponder connected to the object to be... |
| 6505301 |
Authentication for secure devices with limited cryptography |
| Jan-7-2003 |
Authentication is provided for secure devices with limited cryptography, particularly for devices which do not have the capability to do public-key cryptography and generate random numbers. An initialization... |
| 6504932 |
Method of transferring information between a subscriber identification module and a radiocommunication mobile terminal, and a corresponding subscriber identification module and mobile terminal |
| Jan-7-2003 |
A method of transferring information between a subscriber identification model and a mobile terminal constituting a station of a radiocommunication system in which at least some of the information transferred... |
| 6496932 |
Secure session tracking method and system for client-server environment |
| Dec-17-2002 |
A method and system for tracking communications in a client-server environment. The method includes the steps of sending a first request from the client to the server over a first connection, sending a... |
| 6496928 |
System for transmitting subscription information and content to a mobile device |
| Dec-17-2002 |
A system controls access to broadcast messages received by a plurality of mobile devices. Selected mobile devices are provided with a broadcast encryption key (BEK). The broadcast messages are encrypted... |
| 6490682 |
Log-on verification protocol |
| Dec-3-2002 |
A method and apparatus for authenticating a pair of correspondents C, S in an information exchange session to permit exchange of information therebetween. The first correspondent C having log on applets... |
| 6490358 |
Enabling business transactions in computer networks |
| Dec-3-2002 |
A system for creating a log of a conversation includes a convener computer and a plurality of conversation computers interconnected by a computer network. The system includes an arbiter computer and a... |
| 6487293 |
Method and apparatus for reproducing ciphered data |
| Nov-26-2002 |
A data reproducing apparatus and method is provided for reproducing data that was ciphered during recording in one or more of sector forming, header appending, error correction coding, modulation, and... |
| 6480957 |
Method and system for secure lightweight transactions in wireless data networks |
| Nov-12-2002 |
The present invention is a method and system for establishing an authenticated and secure communication session for transactions between a server and a client in a wireless data network that generally... |
| 6473743 |
Postage meter having delayed generation of cryptographic security parameters |
| Oct-29-2002 |
A method for using cryptographic parameters in a postage meter for securing postage indicium data includes the steps of generating in the postage meter 1) first cryptographic parameters which are useable... |
| 6463537 |
Modified computer motherboard security and identification system |
| Oct-8-2002 |
A `personalized` computer with a unique encrypted digital signature which will not boot up or recognize any data storage or communication peripheral devices without a matching `personalized` smart card... |
| 6457126 |
Storage device, an encrypting/decrypting device and method of accessing a non-volatile memory |
| Sep-24-2002 |
A storage device (10) has a flash memory (11), a controller (16) and a second ROM (15). In the flash memory (11), a data key is stored, which is a key unique to each storage device (10). In the second... |
| 6456716 |
Apparatus and method for establishing a crytographic link between elements of a system |
| Sep-24-2002 |
A hierarchical cryptographic system has distributed authority among different classes of units in the system. The system may comprise a trusted authority, a first unit authorized by the trusted authority... |
| 6449720 |
Public cryptographic control unit and system therefor |
| Sep-10-2002 |
A universally available, public cryptographic control unit (crypto unit) is used in a cryptographic system shared by multiple independent users. The crypto unit, which is installed as a peripheral device... |
| 6449717 |
Data copyright management system |
| Sep-10-2002 |
A data copyright management system comprises a database for storing original data, a key control center for managing crypt keys, copyright management center for managing data copyrights, and a communication... |
| 6446205 |
Cryptosystems with elliptic curves chosen by users |
| Sep-3-2002 |
Participants in a cryptosystem select their own elliptic curve and finite field, rather than using a centrally chosen elliptic curve. The curve is chosen from a predetermined set of elliptic curves expressed... |
| 6445797 |
Method and system for performing secure electronic digital streaming |
| Sep-3-2002 |
A secure electronic digital streaming system provides absolute system security and user-defined message security for electronic digital streaming between two public entities. These digital streams can... |
| 6438694 |
Apparatus for data copyright management system |
| Aug-20-2002 |
A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM,... |
| 6430688 |
Architecture for web-based on-line-off-line digital certificate authority |
| Aug-6-2002 |
A method, apparatus, article of manufacture, and a memory structure for issuing digital certificates to a client is disclosed. The method comprises the steps of accepting a digital certificate request... |
| 6430292 |
System and method for controlling disclosure time of information |
| Aug-6-2002 |
A key managing system for implementing simultaneous disclosure of information. The invention includes an information transmitting apparatus which transmits a date and time at which secrecy protection of... |
| 6424715 |
Digital content management system and apparatus |
| Jul-23-2002 |
There are provided a digital content management apparatus which further embodies a digital content management apparatus used with a user terminal, and a system which protects the secrets of a digital content.... |
| 6424718 |
Data communications system using public key cryptography in a web environment |
| Jul-23-2002 |
Described is a communications system in which messages may be processed using public key cryptography with a private key (SKu) unique to one or more users (150). The system comprises a server means (130)... |
| 6411715 |
Methods and apparatus for verifying the cryptographic security of a selected private and public key pair without knowing the private key |
| Jun-25-2002 |
Methods and apparatus are disclosed for demonstrating that a public/private key pair is cryptographically strong without revealing information sufficient to compromise the private key. A key pair can be... |
| 6408390 |
Apparatus for data copyright management system |
| Jun-18-2002 |
A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM,... |
| 6401203 |
Method for automatic handling of certificate and key-based processes |
| Jun-4-2002 |
A method, system and program for automatic administration and management of a plurality of certificates and/or cryptographic keys. Each key is associated with a set of attributes so that the set of attributes... |
| 6393564 |
Decrypting device |
| May-21-2002 |
The decrypting device of this invention includes: a decrypting key generation circuit for generating a decrypting key based on first decrypting key information and second decrypting key information; and... |
| 6393565 |
Data management system and method for a limited capacity cryptographic storage unit |
| May-21-2002 |
A data management system and method for a limited cryptographic storage unit, such as a smartcard or other hardware token, includes a cryptographic data manager that interfaces with the limited capacity... |
| 6385317 |
Method for providing a secure communication between two devices and application of this method |
| May-7-2002 |
In a method for providing a secure communication between two devices, a first device generates a random key (Ci) and transfers this key to a second device in a first message encrypted using a public key.... |
| 6381331 |
Information sending system and method for sending encrypted information |
| Apr-30-2002 |
This invention discloses an information sending system for sending encrypted information which can be decrypted in units of parts of information. This information sending system includes information segmentation... |
| 6377691 |
Challenge-response authentication and key exchange for a connectionless security protocol |
| Apr-23-2002 |
The disclosed system uses a challenge-response authentication protocol for datagram-based remote procedure calls. Using a challenge-response authentication protocol has many advantages over using a conventional... |
| 6377692 |
Method and system for controlling key for electronic signature |
| Apr-23-2002 |
Two keys which are updated in the same updating cycle at different times are prepared as signature keys (main key and auxiliary key) for electronic signature, and the updating cycle of each key is divided... |
| 6370250 |
Method of authentication and storage of private keys in a public key cryptography system (PKCS) |
| Apr-9-2002 |
Private keys for a public key cryptography system are protected within private key storage and communication by the requirement of a password to extract the private key based on a password during decryption.... |
| 6370249 |
Method and apparatus for public key management |
| Apr-9-2002 |
A method and apparatus for public key management is accomplished when an associated authority provides, from time to time, a public key of at least one of a plurality of certificate authorities to a client.... |
| 6367019 |
Copy security for portable music players |
| Apr-2-2002 |
Data such as a musical track is stored as a secure portable track (SPT) which can be bound to one or more players and can be bound to a particular storage medium, restricting playback of the SPT to the... |
| 6363210 |
Communication system for encrypted data and apparatus for selectively recording and reproducing received analog signal and received digital signal |
| Mar-26-2002 |
A communication system has an analog signal broadcasting station for transmitting an analog signal, a digital signal broadcasting station for transmitting a digital signal and a receiving unit for receiving... |
| 6360322 |
Automatic recovery of forgotten passwords |
| Mar-19-2002 |
In accordance with the invention a method of securely and automatically authenticating a user is disclosed. Bona fides are entered for a user, hashed, and stored at an authenticating entity, remote from... |
| 6359986 |
Encryption system capable of specifying a type of an encrytion device that produced a distribution medium |
| Mar-19-2002 |
A decryption selection control unit controls a ciphertext read unit, a decryption key set read unit, and a decryption selection unit to respectively repeat an encrypted scramble key reading, a decryption... |
| 6351536 |
Encryption network system and method |
| Feb-26-2002 |
A key used for deciphering ciphertext is safely transmitted, to establish simple encryption communication. A transmitter and a receiver are connected through a network such that they can communicate with... |
| 6347373 |
Method and device for the protected storage of data from message traffic |
| Feb-12-2002 |
Method and processor (12) for: a. setting up a telecommunication link between various communication appliances (1, 2, 3, 7, 8, 9); b. setting up a monitoring link (13) between the telecommunication link... |
| 6343361 |
Dynamic challenge-response authentication and verification of identity of party sending or receiving electronic communication |
| Jan-29-2002 |
Methods and systems for verifying and authenticating the identity of participants in electronic communication. The identity of a recipient communication device, such as a computer, can be verified. A primary... |
| 6338140 |
Method and system for validating subscriber identities in a communications network |
| Jan-8-2002 |
A method and/or system for validating subscribers includes an insecure communications network, such as, an IS-41 wireless telephone network connecting a plurality of telephone switches. A subscriber or... |
