Patents by Inventor Alexandru Badea

Alexandru Badea has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11831763
    Abstract: Methods, systems, and computer readable media for utilizing predetermined encryption keys in a test simulation environment are disclosed. In one embodiment, a method includes generating, prior to an initiation of an Internet protocol security (IPsec) test session, a private key and a public key at a traffic emulation device and storing the private key and the public key in a local storage associated with the traffic emulation device. The method further includes retrieving, from the local storage, the private key and the public key upon the initiation of the IPsec test session between the traffic emulation device and a device under test (DUT) and generating a shared secret key utilizing the retrieved private key and a DUT public key received from the DUT.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: November 28, 2023
    Assignee: KEYSIGHT TECHNOLOGIES SINGAPORE (SALES) PTE. LTD.
    Inventors: Andrei Cipu, Alexandru Badea, George Ciobanu
  • Patent number: 11388228
    Abstract: The subject matter described herein includes methods, systems, and computer readable media for self-replicating cluster appliances. A method for self-replicating cluster appliances includes at a controller node configured for controlling a cluster of one or more network testing and/or visibility nodes: receiving node information associated with a first computing node, wherein the first computing node includes a preconfigured operating system; determining, using the node information, operating system data for configuring the first computing node to be in the cluster; and providing, via a communications interface, the operating system data to the first computing node. The method also includes at the first computing node: receiving the operating system data; and using the operating system data to configure the first computing node to be in the cluster and to provide at least one network testing or visibility service.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: July 12, 2022
    Assignee: KEYSIGHT TECHNOLOGIES, INC.
    Inventors: Matthew Ronald John Giassa, Alexandru Badea, Nicolae Sorin Fetche, Serif Narcis Abdulamit
  • Publication number: 20210281401
    Abstract: Methods, systems, and computer readable media for utilizing predetermined encryption keys in a test simulation environment are disclosed. In one embodiment, a method includes generating, prior to an initiation of an Internet protocol security (IPsec) test session, a private key and a public key at a traffic emulation device and storing the private key and the public key in a local storage associated with the traffic emulation device. The method further includes retrieving, from the local storage, the private key and the public key upon the initiation of the IPsec test session between the traffic emulation device and a device under test (DUT) and generating a shared secret key utilizing the retrieved private key and a DUT public key received from the DUT.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: Andrei Cipu, Alexandru Badea, George Ciobanu
  • Publication number: 20210136147
    Abstract: The subject matter described herein includes methods, systems, and computer readable media for self-replicating cluster appliances. A method for self-replicating cluster appliances includes at a controller node configured for controlling a cluster of one or more network testing and/or visibility nodes: receiving node information associated with a first computing node, wherein the first computing node includes a preconfigured operating system; determining, using the node information, operating system data for configuring the first computing node to be in the cluster; and providing, via a communications interface, the operating system data to the first computing node. The method also includes at the first computing node: receiving the operating system data; and using the operating system data to configure the first computing node to be in the cluster and to provide at least one network testing or visibility service.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Inventors: Matthew Ronald John Giassa, Alexandru Badea, Nicolae Sorin Fetche, Serif Narcis Abdulamit
  • Patent number: 10212125
    Abstract: The subject matter described herein relates to methods, systems, and computer readable media for testing network equipment devices using connection-oriented protocols. In some examples, a method for testing a network equipment device under test (DUT) includes executing, by a network equipment test device, a test script to test the network equipment DUT using a connection-oriented protocol. The method includes inserting, during a connection establishment process of the connection-oriented protocol for a network flow to the network equipment DUT, a flow-identifying sequence number into a sequence number field of a first message of the network flow. The flow-identifying sequence number is a number uniquely identifying the network flow from other network flows. The method includes receiving a second message from the network equipment DUT and determining that the second message belongs to the network flow by extracting the flow-identifying sequence number from the second message.
    Type: Grant
    Filed: April 9, 2016
    Date of Patent: February 19, 2019
    Assignee: KEYSIGHT TECHNOLOGIES SINGAPORE (HOLDINGS) PTE. LTD.
    Inventors: Alexandru Badea, George Ciobanu, Emilian-Mihai Filipescu, Marius-Gabriel Ionescu
  • Patent number: 10205590
    Abstract: Methods and systems for reducing the size of a cryptographic key in a test simulation environment are disclosed. In one example, a method includes determining a minimum key size value and maximum key size value for a private cryptographic key for each of a plurality of key exchange value pairs and deriving, for each of the plurality of key exchange value pairs, a key sizing constant based on the minimum key size value and the maximum key size value. The method further includes storing each of the plurality of selected key exchange value pairs and associated key sizing constant in a data store, selecting a key exchange value pair to be applied to a test simulation session conducted between a first test simulation endpoint and a second test simulation endpoint, and generating a private cryptographic key based on the key sizing constant associated with the selected key exchange value pair.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 12, 2019
    Assignee: KEYSIGHT TECHNOLOGIES SINGAPORE (HOLDINGS) PTE. LTD.
    Inventors: Andrei Cipu, Alexandru Badea
  • Patent number: 10178015
    Abstract: The subject matter described herein relates to methods, systems, and computer readable media for testing network equipment devices using connectionless protocols. In some examples, a method for testing a network equipment device under test (DUT) includes transmitting a first message using a connectionless protocol for a network flow to the network equipment DUT according to a test script. The method includes storing a record for the network flow including a first flow identifier for the flow based on a first payload of the first message. The method includes receiving a second message from the network equipment DUT and determining that the second message belongs to the network flow by determining a second flow identifier based on a second payload of the second message and matching the second flow identifier to the first flow identifier.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: January 8, 2019
    Assignee: KEYSIGHT TECHNOLOGIES SINGAPORE (HOLDINGS) PTE. LTD.
    Inventors: Alexandru Badea, Radu Bulboaca, Emilian-Mihai Filipescu, Marius-Gabriel Ionescu
  • Publication number: 20170295137
    Abstract: The subject matter described herein relates to methods, systems, and computer readable media for testing network equipment devices using connection-oriented protocols. In some examples, a method for testing a network equipment device under test (DUT) includes executing, by a network equipment test device, a test script to test the network equipment DUT using a connection-oriented protocol. The method includes inserting, during a connection establishment process of the connection-oriented protocol for a network flow to the network equipment DUT, a flow-identifying sequence number into a sequence number field of a first message of the network flow. The flow-identifying sequence number is a number uniquely identifying the network flow from other network flows. The method includes receiving a second message from the network equipment DUT and determining that the second message belongs to the network flow by extracting the flow-identifying sequence number from the second message.
    Type: Application
    Filed: April 9, 2016
    Publication date: October 12, 2017
    Inventors: Alexandru Badea, George Ciobanu, Emilian-Mihai Filipescu, Marius-Gabriel Ionescu
  • Publication number: 20170272352
    Abstract: The subject matter described herein relates to methods, systems, and computer readable media for testing network equipment devices using connectionless protocols. In some examples, a method for testing a network equipment device under test (DUT) includes transmitting a first message using a connectionless protocol for a network flow to the network equipment DUT according to a test script. The method includes storing a record for the network flow including a first flow identifier for the flow based on a first payload of the first message. The method includes receiving a second message from the network equipment DUT and determining that the second message belongs to the network flow by determining a second flow identifier based on a second payload of the second message and matching the second flow identifier to the first flow identifier.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 21, 2017
    Inventors: Alexandru Badea, Radu Bulboaca, Emilian-Mihai Filipescu, Marius-Gabriel Ionescu
  • Publication number: 20170170956
    Abstract: Methods, systems, and computer readable media for reducing the size of a cryptographic key in a test simulation environment are disclosed. In one example, a method includes determining a minimum key size value and maximum key size value for a private cryptographic key for each of a plurality of key exchange value pairs and deriving, for each of the plurality of key exchange value pairs, a key sizing constant based on the minimum key size value and the maximum key size value. The method further includes storing each of the plurality of selected key exchange value pairs and associated key sizing constant in a data store, selecting a key exchange value pair to be applied to a test simulation session conducted between a first test simulation endpoint and a second test simulation endpoint, and generating a private cryptographic key based on the key sizing constant associated with the selected key exchange value pair.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 15, 2017
    Inventors: Andrei Cipu, Alexandru Badea