Patents Examined by Ellen C Tran
  • Patent number: 7222235
    Abstract: An image processing system comprises an image providing apparatus which provides an image file, from which a digital watermark information can be extracted by using a watermark key that includes an authentication information which authenticates the image file provided by an valid provider, and the watermark key of the image file; and an image utilizing apparatus which extracts the digital watermark information from the image file provided by the image providing apparatus using the watermark key provided by the image providing apparatus, verifies whether the watermark key has been tampered or not using the authentication information in the watermark key, verifies whether the image file has been tampered or not using the verified watermark key, and displays the verified image file.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: May 22, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Yasuhiro Mitsui
  • Patent number: 7203957
    Abstract: A method and system for implementing secure communications between a plurality of devices are provided. The method and system generally include the provision of at least one common encryption parameter to each of the plurality of devices, as well as an identification of the plurality of devices to one another. This information can be maintained and shared by interaction of the plurality of devices with a designated server device. In this way, a secure, point-to-point connection between at least two of the plurality of devices can be established.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: April 10, 2007
    Assignee: AT&T Corp.
    Inventors: Joel Balissat, Claude Galand, Jean-Francois Le Pennec, Jean-Marie Sommerlatt
  • Patent number: 7203314
    Abstract: A method and apparatus for storing and retrieving program material for subsequent replay is disclosed.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: April 10, 2007
    Assignee: The DirecTV Group, Inc.
    Inventors: Raynold M. Kahn, Gregory J. Gagnon, David D. Ha, Peter M. Klauss, Christopher P. Curren, Thomas H. James
  • Patent number: 7200232
    Abstract: A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plaintext blocks each having a predetermined length, generating a random number sequence based on a secret key, generating a random number block corresponding to one of the plaintext blocks from the random number sequence, outputting a feedback value obtained as a result of operation on the one plaintext block and the random number block, the feedback value being fed back for using in the operation on another plaintext block, and performing an encryption operation using the one plaintext block, random number block, and feedback value.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: April 3, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Soichi Furuya, Kazuo Takaragi, Hiroyuki Kurumatani, Masashi Takahashi, Kunihiko Miyazaki, Hisayoshi Sato, Dai Watanabe
  • Patent number: 7197767
    Abstract: An information distribution system includes a portable electronic device, and an information management apparatus for storing both right information and information which corresponds to the portable electronic device and which indicates to whom a right belongs. By using a code unique to the portable electronic device to encrypt concert information as the right information to be offline-providable form, and providing a ticket code generated by the encryption so that it passes through an offline channel at least once, the distribution to each user of the encrypted information can be simplified.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: March 27, 2007
    Assignee: Sony Corporation
    Inventors: Susumu Kusakabe, Motoki Nakade, Isao Yamada
  • Patent number: 7188365
    Abstract: A method and system for implementing secure network communications between a first device and a second device, at least one of the devices communicating with the other device via a firewall device, are provided. The method and system may include obtaining an encryption parameter that is shared by the first device, second device and firewall device. A data packet sent by the first device may then be copied within the firewall device, so that decryption of the copy of the data packet within a portion of the firewall device may take place. In particular, the portion of the firewall device in which decryption takes place is defined such that contents of the portion are inaccessible to an operator of the firewall device. Thus, scanning of the decrypted copy of the data packet for compliance with a predetermined criterion may take place within the firewall device, without an operator of the firewall device having access to the contents of the data packet to be transmitted.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: March 6, 2007
    Assignee: AT&T Corp.
    Inventors: Joel Balissat, Claude Galand, Jean-Francois Le Pennec, Jean-Marie Sommerlatt
  • Patent number: 7155616
    Abstract: A computer network is disclosed comprising a plurality of interconnected network devices including a plurality of client computers, an authentication server computer operated by a system administrator, and a disk drive connected to the authentication server computer. The disk drive comprises an interface for receiving the personal authentication data and user access data from the system administrator, a disk for storing data, and a disk controller for controlling access to the disk. An authenticator within the disk drive, responsive to the personal authentication data, enables the disk controller, and cryptographic circuitry encrypts the user access data received from the system administrator into encrypted data stored on the disk.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: December 26, 2006
    Assignee: Western Digital Ventures, Inc.
    Inventor: Christopher L. Hamlin
  • Patent number: 7155606
    Abstract: A method for ensuring the integrity of a receiving system in a distributed computing environment includes receiving information from a transmitting system. The method also includes testing whether the information is preverified information. If the information is not preverified, the method includes verifying the information or rejecting receipt of the information. If the information is preverified, the method includes testing if the information was received from a trusted transmitting system. If the information was received from a trusted transmitting system, the method includes accepting receipt of the information without reverifying. If the information was not received from a trusted transmitting system, the method includes verifying the information or rejecting receipt of the information.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: December 26, 2006
    Assignee: Microsoft Corporation
    Inventors: Michael D. Smith, Brian A. Lamacchia, Michael J. Toutonghi
  • Patent number: 7117370
    Abstract: A method for secure transmission of data, like e-mail and other secure documents, over a computer network includes the use of biometrics to verify that the sender of the data is confirmed as an individual authorized for secure access transmission of data over the network and by verifying that the recipient of the data is also an individual authorized to receive data by secure access transmission over the network. The methodology comprises creating a database containing the biometric templates of all individuals authorized for secure access transmission of data over the network and connecting the database to a data processor. The transmission of counterfeit messages is prevented by confirming the identity of the sender as an individual authorized for secure access transmission over the network by scanning a predetermined biometric of the sender, and comparing the biometric of the sender with the predetermined biometric of all individuals who are authorized for secure access transmission over the network.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: October 3, 2006
    Inventors: Sal Khan, Martin Levine
  • Patent number: 7110545
    Abstract: A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plaintext blocks each having a predetermined length, generating a random number sequence based on a secret key, generating a random number block corresponding to one of the plaintext blocks from the random number sequence, outputting a feedback value obtained as a result of operation on the one plaintext blocks and the random number block, the feedback value being fed back for using in the operation on another plaintext blocks, and performing an encryption operation using the one plaintext blocks, random number block, and feedback value.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: September 19, 2006
    Assignee: Tokyo, Japan
    Inventors: Soichi Furuya, Kazuo Takaragi, Hiroyuki Kurumatani, Masashi Takahashi, Kunihiko Miyazaki, Hisayoshi Sato, Dai Watanabe
  • Patent number: 7099475
    Abstract: A system and method for allowing roaming of a subscriber and password authentication a non-LDAP region. A user signs onto a network access server which in turn connects to the regional LDAP RADIUS server. Password authentication occurs by hashing a transmitted password and comparing it to a clear text password from an LDAP database that has been hashed in the same manner as the transmitted password. When the subscriber is in a non-LDAP region, The password proceeds trough a proxy server to a regional RADIUS server which connects to a non-LDAP server. The non-LDAP server connects to and SMS database and retrieve the clear text password associated with the non-LDFSAP user, hashes it according the same method as the transmitted hashed password and formats the password for comparison in the regional RADIUS server. If the hashed passwords compare, the access is permitted.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: August 29, 2006
    Assignee: Road Runner Holdco LLC
    Inventors: Barbara Huff, Howard Pfeffer, Michael Gazillo, Jack Cashman
  • Patent number: 7093283
    Abstract: A method and apparatus for deploying configuration instructions to security devices in order to implement a security policy on a network are disclosed. An address translation alteration performed on packets communicated between a management source and a plurality of security devices, resulting from implementation of a proposed new network security policy, is detected. One or more sets of security devices are identified that would each have one or more configuration dependencies as a result of the address translation alteration. Configuration instructions are sent from the management source to each of the one or more sets of security devices using an order determined by the identified configuration dependencies. The configuration instructions are used to implement the security policy on the network. As a result, firewalls and similar devices are properly configured for a new policy without inadvertently causing traffic blockages arising from configuration dependencies.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: August 15, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Shigang Chen, Partha Bhattacharya
  • Patent number: 7089418
    Abstract: In one embodiment, a method comprises configuring an access transaction generated by a processor by a configuration storage containing configuration parameters. The processor has a normal execution mode and an isolated execution mode. The access transaction has access information. In a further embodiment, a method comprises checking the access transaction by an access checking circuit using at least one of the configuration parameters and the access information.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: August 8, 2006
    Assignee: Intel Corporation
    Inventors: Carl M. Ellison, Roger A. Golliver, Howard C. Herbert, Derrick C. Lin, Francis X. McKeen, Gilbert Neiger, Ken Reneris, James A. Sutton, Shreekant S. Thakkar, Millind Mittal
  • Patent number: 7085928
    Abstract: An execution management utility designed to prevent software from executing without the prior approval of system administrative or other security staff. For example, the present invention can assist corporations by enforcing policies regarding unauthorized, unlicensed, or pirated software, such as, but not limited to, games; entertainment software; and non-standard utilities, such as advertising-enhanced browsers. A Windows NT based system is disclosed in which a kernel module selectively intercepts process creation requests.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: August 1, 2006
    Assignee: Cigital
    Inventors: Matthew N. Schmid, John Thomas Bloch, Frank F. Hill, Anup K. Ghosh
  • Patent number: 7072988
    Abstract: A method for verifying bus performance in a multiple initiator environment is provided. A first initiator generates a key data pattern including a key header and a pattern. The first initiator then writes the key data pattern to an echo buffer of a target after which the first initiator reads the key data pattern. The first initiator also examines the key header to ascertain a level of communication integrity of a physical connection with the target.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 4, 2006
    Assignee: Adaptec, Inc.
    Inventor: Carlos H. Morales
  • Patent number: 7069585
    Abstract: An apparatus and a method for enabling the secure installation and use of an information system having a plurality of nodes, where the plurality of nodes include at least one information appliance (100) and at least one security console (200). The apparatus includes at least one data-carrying object, referred to as a “key” (301), that contains security-related data, and further includes at least one key receptacle (103, 203) that forms a portion of at least one of the nodes. The key is inserted into the receptacle for reading-out the security-related data for indicating to the information system a desired security configuration. The key is not intended to primarily establish the identity of a particular user or principal, but is instead intended to provide and be instrumental in defining, using a tangible medium, a security configuration that bestows a certain level of authorization or access to a particular user or principal.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: June 27, 2006
    Assignee: International Business Machines Corporation
    Inventors: David M. Chess, Ian N. Whalley, Steve R. White, John F. Morar
  • Patent number: 7069440
    Abstract: A method and computer program in which a user (132) may have a digital certificate created using a strong authentication technique. Once the user has the digital certificate he may then request the generation of a “single sign-on” certificate that will allow the user (132) access to a foreign computer networks. This is accomplished by the user (132) contacting a registration web server (124) and requesting the generation of “single sign-on” for the foreign computer network. Thereafter, the registration web server (124) may take a public key generated based on the digital certificate and request the creation of a “single sign-on” by simply creating a public key from the digital certificate.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: June 27, 2006
    Assignee: Northrop Grumman Corporation
    Inventor: Kenneth W. Aull
  • Patent number: 7046804
    Abstract: An image encoding/decoding system and method for producing a computer-generated security device which can be printed onto a document, such as a passport, to secure the document against data alteration. Deflection encoding means comprises means for applying a selected software lens to a source image and producing a deflected image. Encryption encoding means comprises means for applying an encryption function to the deflected image or a source image and producing an encrypted image. Overlaying means is provided for overlaying the deflected and encrypted images and producing therefrom the security device image. The deflected image may be detected from the security device image both by means of a manual lenticular lens corresponding to the software lens applied to a printing of the security image and by means of computer decoding processing applying the software lens.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: May 16, 2006
    Assignee: Canadian Bank Note Company, Ltd
    Inventors: Trevor Merry, Ileana Buzuloiu
  • Patent number: 7035403
    Abstract: A message to be transmitted through a network is encrypted such that the resulting encrypted message has associated therewith a proof of correctness indicating that the message is of a type that allows decryption by one or more escrow authorities. Each of at least a subset of the servers of the network includes a module for checking the proof of correctness if the corresponding encrypted message passes through the corresponding server in being transmitted from a sender to a recipient through the network. The encrypted message is therefore transmitted through the network to the recipient such that in traversing the network the proof of correctness associated with the encrypted message is checked by a designated check module of at least one server of the network. If the check of the proof of correctness indicates that the proof is invalid, the module of the server performing the check may direct that the encrypted message be discarded.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: April 25, 2006
    Assignee: Lucent Technologies Inc.
    Inventor: Bjorn Markus Jakobsson
  • Patent number: 7032115
    Abstract: An information processing apparatus and method consisting of the modules 1) peripheral control including power management resulting in increased battery life where a plurality of peripherals use a single power source to eliminate external power supplies, 2) universal conversion, an extensible system for taking any information as input and converting to any desired feasible output, 3) virtual user production, which creates a digital representation of a user through constant recording and analysis of completed work, which is disintegrated and stored in lists comprising tasks and related options. A list captures and represents the user's preferences. Dynamic and evolving lists define a virtual user capable of repeating any previously recorded task. A corresponding Web based communication provider automatically feeds additional tasks and options to the invention, which can grow substantially unassisted by the user.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: April 18, 2006
    Inventor: Mehdi Kashani