| 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... |
| 7039946 |
Piggy-backed key exchange protocol for providing secure, low-overhead browser connections when a client requests a server to propose a message encoding scheme |
| May-2-2006 |
A method, system, and computer program product for establishing security parameters that are used to exchange data on a secure connection. A piggy-backed key exchange protocol is defined, with which these... |
| 7024392 |
Method for controlling use of database content |
| Apr-4-2006 |
Method for providing database content usage. The database content can be a digital work having one or more rights associated therewith. The method can be effected within a system having at least one repository... |
| 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... |
| 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.... |
| 6999588 |
Image input apparatus, image input method, recording medium, and encryption processing program stored in computer-readable medium |
| Feb-14-2006 |
In an image input apparatus provided with an image pick-up unit, an image signal generated by the image pick-up unit is converted into digital information. The digital information is then encrypted by... |
| 6996233 |
System and method for encrypting and verifying messages using three-phase encryption |
| Feb-7-2006 |
A method and system for encrypting and verifying the integrity of a message using a three-phase encryption process is provided. A source having a secret master key that is shared with a target receives... |
| 6993137 |
Method and system to securely distribute content via a network |
| Jan-31-2006 |
A method and system to distribute encrypted content via a network commences when a content provider generates a set of session keys and encrypts content with the set of session keys. The content provider... |
| 6986045 |
Single algorithm cipher suite for messaging |
| Jan-10-2006 |
A method for authenticating a message recipient and for secure communication of messages from a sender to the message recipient through a server, the method being carried out by one or more data processing... |
| 6980656 |
Chaotic communication system and method using modulation of nonreactive circuit elements |
| Dec-27-2005 |
A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting... |
| 6973568 |
Apparatus and method for implementing spoofing-and replay-attack-resistant virtual zones on storage area networks |
| Dec-6-2005 |
A storage area network resistant to spoofing attack has several nodes each having a port, and storage area network interconnect interconnecting the ports. Each port is provided with a hash function generator... |
| 6971008 |
Authorization of services in a conditional access system |
| Nov-29-2005 |
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 set top units... |
| 6959086 |
Cryptographic key management scheme |
| Oct-25-2005 |
A key management scheme for managing encryption keys in a cryptographic co-processor includes the first step of selecting a key from one of a symmetrical key type and an asymmetrical key type. Then, the... |
| 6956949 |
Method and apparatus for authenticating an hierarchy of video receiving devices |
| Oct-18-2005 |
A video source device and a video repeater device cooperatively authenticates said video repeater apparatus to said video source device. In one embodiment, the authentication is performed using an identical... |
| 6947561 |
Method and apparatus for protecting copy control information provided to a video recording device |
| Sep-20-2005 |
A video source device includes a cipher unit. The cipher unit includes a block cipher and a stream cipher. The video source device uses the block cipher to generate at least one cipher key for use by the... |
| 6931379 |
IC card system and IC card |
| Aug-16-2005 |
An IC card that allows a service provider doing a business of loading an application into the IC card to dynamically load the application into the IC card safely after the issuance of the IC card without... |
| 6920221 |
Method and apparatus for protected exchange of status and secret values between a video source application and a video hardware interface |
| Jul-19-2005 |
A video source application in a video source device requests from a video hardware interface of the video source device status with respect to a link linking the video source device to an external video... |
| 6907126 |
Encryption-decryption apparatus |
| Jun-14-2005 |
In an encryption-decryption apparatus, a transmitting apparatus encrypts input data to output encrypted data. A network transmits the encrypted data. A receiving apparatus takes as input the encrypted... |
| 6891953 |
Method and system for binding enhanced software features to a persona |
| May-10-2005 |
A server architecture for a digital rights management system that distributes and protects rights in content. The server architecture includes a retail site which sells content items to consumers, a fulfillment... |
| 6891952 |
Dynamic key generation and confidential synchronization of encryption components |
| May-10-2005 |
This invention report describes the architecture of a system, which undertakes in a new way the dynamic generation of symmetrical keys and the confidential synchronization of encryption components which... |
| 6882727 |
Method of ciphering data transmission in a radio system |
| Apr-19-2005 |
The invention relates to a method of ciphering data transmission in a radio system, and to a user equipment using the method, and to a radio network subsystem using the method. The method includes the... |
| 6873975 |
Content usage control system, content usage apparatus, computer readable recording medium with program recorded for computer to execute usage method |
| Mar-29-2005 |
A content usage control system comprises a copyright holder system, content server, license server and user system. The ACL setting section of the copyright holder system sets a license ACL expressed as... |
| 6865678 |
Personal date/time notary device |
| Mar-8-2005 |
A personal data/time notary device is embodied in a token device such as a "smart card". The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit... |
| 6859533 |
System and method for transferring the right to decode messages in a symmetric encoding scheme |
| Feb-22-2005 |
Methods for transferring among key holders in encoding and cryptographic systems the right to decode and decrypt messages in a way that does not explicitly reveal decoding and decrypting keys used and... |
| 6848050 |
System and method for alternative encryption techniques |
| Jan-25-2005 |
A system and method for verifying the identification of a user and securely establishing an encryption key for a communication between the user and a verifying entity, such as a bank, which makes use of... |
| 6831979 |
Cryptographic accelerator |
| Dec-14-2004 |
A cryptographic accelerator for handling instruction-intensive bit permutations. The cryptographic accelerator comprises a selector and a plurality of buses coupled to the selector. Herein, at least one... |
| 6816968 |
Consumable authentication protocol and system |
| Nov-9-2004 |
This invention concerns a consumable authentication protocol for validating the existence of an untrusted authentication chip, as well as ensuring that the authentication chip lasts only as long as the... |
| 6816970 |
Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same |
| Nov-9-2004 |
A multi-stage login procedure and system involves a first stage in which a login ID and a public key (encrypted) is transmitted from a client computer to a server computer and a key-exchange key (encrypted)... |
| 6795555 |
Encryption key exchange protocol |
| Sep-21-2004 |
The calculation of encryption keys is a processor intensive undertaking that is not suited for "thin client" terminal devices typically used for session applications in an Internet Protocol network. The... |
| 6792534 |
End-to end protection of media stream encryption keys for voice-over-IP systems |
| Sep-14-2004 |
The present invention reduces the exposure of keying material to intermediary devices in a communication channel between first and second servers. In one embodiment, a second server receives a first half... |
| 6792108 |
Aperiodic encryption for digital data |
| Sep-14-2004 |
For stream or block ciphers, a sequence generator using a quasi-crystal function is used to prepare an encryption or decryption pad. Various techniques for generating purely aperiodic sequences using quasi-crystal... |
| 6782100 |
Accelerated finite field operations on an elliptic curve |
| Aug-24-2004 |
A method for multiplication of a point P on elliptic curve E by a value k in order to derive a point kP comprises the steps of representing the number k as vector of binary digits stored in a register... |
| 6779111 |
Indirect public-key encryption |
| Aug-17-2004 |
A system and method for encrypting data communications between a client and server utilizes an untrusted proxy server to perform computationally expensive encryption calculations which would otherwise... |
| 6760444 |
Mobile IP authentication |
| Jul-6-2004 |
Methods and apparatus for authenticating a mobile node are disclosed. A server is configured to provide a plurality of security associations associated with a plurality of mobile nodes. A packet identifying... |
| 6728378 |
Secret key messaging |
| Apr-27-2004 |
The invention provides computer-enabled methods and systems for the secure transmission and platform-independent receipt and decryption of encrypted messages. According to the invention messages are encrypted... |
| 6718038 |
Cryptographic method using modified fractional fourier transform kernel |
| Apr-6-2004 |
The present invention is a cryptographic method that uses at least one component of a modified fractional Fourier transform kernel a user-definable number of times. For encryption, a signal is received;... |
| 6715079 |
Method and system for soft modem protection |
| Mar-30-2004 |
The present invention is a system and method for soft modem software protection using a key. The key is stored in a hardware device in the modem subsystem and transmitted to the central processing unit... |
| 6711262 |
Procedure for the control of applications stored in a subscriber identity module |
| Mar-23-2004 |
A procedure for the control of applications stored in a user's subscriber identity module (SIM) in a data communication system that includes a data communication network, a terminal device connected to... |
| 6671377 |
System and method for downloading network information to mobile stations for location calculation |
| Dec-30-2003 |
A telecommunications system and method is disclosed for downloading encrypted network information, such as Base Transceiver Station (BTS) coordinates, in a point-to-point manner between the network and... |
| 6643774 |
Authentication method to enable servers using public key authentication to obtain user-delegated tickets |
| Nov-4-2003 |
A method, system, and computer-readable code for delegating authority in a public key authentication environment from a client to a server machine or process, in order that the server machine or process... |
| 6618807 |
Computer system with an external and portable electronic key for encryption and decryption processes |
| Sep-9-2003 |
The present invention provides a computer system comprising a system memory, a processor, a cryptoprogram, an I/O port, and an electronic key. The electronic key can be inserted into and removed from the... |
| 6609196 |
E-mail firewall with stored key encryption/decryption |
| Aug-19-2003 |
An e-mail firewall (105) applies policies to e-mail messages (204) between a first site and a plurality of second sites in accordance with a plurality of administrator selectable policies (216). The firewall... |
| 6571334 |
Apparatus and method for authenticating the dispatch and contents of documents |
| May-27-2003 |
Apparatus and method for authenticating that a sender has sent certain information via a dispatcher to a recipient is disclosed. The method includes the steps of: (a) providing a set A comprising a plurality... |
| 6516412 |
Authorization of services in a conditional access system |
| Feb-4-2003 |
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 set top units... |
| 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... |
| 6504931 |
Method and apparatus for encrypting data |
| Jan-7-2003 |
In the process of compressing and encrypting data, without an increase of processing time, a cipher capability is secured against the latest cryptanalysis such as differential and linear cryptanalyses.... |
| 6480605 |
Encryption and decryption devices for public-key cryptosystems and recording medium with their processing programs recorded thereon |
| Nov-12-2002 |
In a public-key cryptosystem based on a multiplicative group, n=p.sup.2 q, where p and q are odd primes, and g, selected from (Z/nZ)* such that g.sub.p =g.sup.r-1 mod p.sup.2 has an order of p in (Z/ p.sup.2... |
| 6477252 |
Digital video content transmission ciphering and deciphering method and apparatus |
| Nov-5-2002 |
A video source device provides a basis value to a symmetric ciphering/deciphering process to a video sink device, to which the video source device is to provide a video content. The video source device... |
| 6449651 |
System and method for providing temporary remote access to a computer |
| Sep-10-2002 |
A system and method for providing temporary access to a host computer from a remote computer. The host computer maintains a system date and time and is connected to the remote computer over a communications... |
| 6425004 |
Detecting and locating a misbehaving device in a network domain |
| Jul-23-2002 |
A technique for detecting and locating a misbehaving router divides the network domain into multiple sectors and uses a two-level authentication scheme to allow a receiving device to authenticate that... |
