Patents by Inventor Saurabh Shintre

Saurabh Shintre 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: 10225277
    Abstract: Verifying that influence of a user data point has been removed from a machine learning classifier. In some embodiments, a method may include training a machine learning classifier using a training set of data points that includes a user data point, calculating a first loss of the machine learning classifier, updating the machine learning classifier by updating parameters of the machine learning classifier to remove influence of the user data point, calculating a second loss of the machine learning classifier, calculating an expected difference in loss of the machine learning classifier, and verifying that the influence of the user data point has been removed from the machine learning classifier by determining that the difference between the first loss and the second loss is within a threshold of the expected difference in loss.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: March 5, 2019
    Assignee: SYMANTEC CORPORATION
    Inventors: Saurabh Shintre, Jasjeet Dhaliwal
  • Publication number: 20180375883
    Abstract: Automatically detecting insider threats using user collaboration patterns. In one embodiment, a method may include identifying collaborative access of one or more network resources in a network between a target user using a target network device and other users using other network devices in the network during multiple prior time periods and during a current time period, generating prior collaboration graphs for the prior time periods, generating an average collaboration graph by combining the prior collaboration graphs, generating a current collaboration graph for the current time period, generating an anomaly score by comparing the current collaboration graph to the average collaboration graph, determining that the collaborative access of the one or more network resources during the current time period is anomalous by determining that the anomaly score exceeds a threshold, and, in response to the anomaly score exceeding the threshold, performing a security action on the target network device.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 27, 2018
    Inventors: Sandeep Bhatkar, Saurabh Shintre, Ashwin Kayyoor
  • Patent number: 10044691
    Abstract: Decrypting network traffic on a middlebox device using a trusted execution environment (TEE).
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: August 7, 2018
    Assignee: SYMANTEC CORPORATION
    Inventors: Yuqiong Sun, Daniel Marino, Susanta K. Nanda, Saurabh Shintre, Brian T. Witten, Ronald A. Frederick, Qing Li
  • Patent number: 10015182
    Abstract: The disclosed computer-implemented method for protecting computing resources may include (i) computing a degree of commonality between pairs of users within a file sharing system based on which files the users accessed over a period of time, (ii) building a social graph that indicates at least one edge between members of an instance of the pairs of users, (iii) computing an anomaly score for a user within the instance of the pairs of users, (iv) detecting that the anomaly score deviates, according to a statistical measurement, from historical anomaly scores computed for the same user, and (v) performing, in response to detecting that the anomaly score deviates from the historical anomaly scores, a protective action to protect computing resources from anomalous behavior by the user. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: July 3, 2018
    Assignee: Symantec Corporation
    Inventors: Saurabh Shintre, Aleatha Parker-Wood
  • Patent number: 9692604
    Abstract: Method and system of key distribution by trusted nodes for a vehicular ad hoc network, the nodes of said network having at least one pair of public-private keys and the corresponding certificates, issued by a CA, said method comprising each vehicle node, on entering said network region, requesting a set of keys from an RSU node that is within range and within that region, said RSU node sending said vehicle node a set of private keys, selected from a pool of private keys, and a list with the key identifiers of the private keys shared by said vehicle node and the other vehicle nodes that have most recently contacted said RSU for a predetermined period of time; such that two nodes are able to establish a secure connection without further interaction by deriving a shared secret which is a cryptographic hash function of the keys shared by said two nodes.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 27, 2017
    Assignee: Universidade Do Porto
    Inventors: Joäo Francisco Cordeiro De Oliveira Barros, Joäo Paulo Patriarca De Almeida, Mate Boban, Saurabh Shintre
  • Publication number: 20160248594
    Abstract: Method and system of key distribution by trusted nodes for a vehicular ad hoc network, the nodes of said network having at least one pair of public-private keys and the corresponding certificates, issued by a CA, said method comprising each vehicle node, on entering said network region, requesting a set of keys from an RSU node that is within range and within that region, said RSU node sending said vehicle node a set of private keys, selected from a pool of private keys, and a list with the key identifiers of the private keys shared by said vehicle node and the other vehicle nodes that have most recently contacted said RSU for a predetermined period of time; such that two nodes are able to establish a secure connection without further interaction by deriving a shared secret which is a cryptographic hash function of the keys shared by said two nodes.
    Type: Application
    Filed: February 24, 2016
    Publication date: August 25, 2016
    Inventors: Joao Francisco Cordeiro De Oliveira Barros, Joäo Paulo Patriarca De Almeida, Mate Boban, Saurabh Shintre
  • Patent number: 9276743
    Abstract: Method and system of key distribution by trusted nodes for a vehicular ad hoc network, the nodes of said network having at least one pair of public-private keys and the corresponding certificates, issued by a CA, said method comprising each vehicle node, on entering said network region, requesting a set of keys from an RSU node that is within range and within that region, said RSU node sending said vehicle node a set of private keys, selected from a pool of private keys, and a list with the key identifiers of the private keys shared by said vehicle node and the other vehicle nodes that have most recently contacted said RSU for a predetermined period of time; such that two nodes are able to establish a secure connection without further interaction by deriving a shared secret which is a cryptographic hash function of the keys shared by said two nodes.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 1, 2016
    Assignee: Universidade Do Porto
    Inventors: Joäo Francisco Cordeiro De Oliveira Barros, Joäo Paulo Patriarca De Almeida, Mate Boban, Saurabh Shintre
  • Publication number: 20150139421
    Abstract: Method and system of key distribution by trusted nodes for a vehicular ad hoc network, the nodes of said network having at least one pair of public-private keys and the corresponding certificates, issued by a CA, said method comprising each vehicle node, on entering said network region, requesting a set of keys from an RSU node that is within range and within that region, said RSU node sending said vehicle node a set of private keys, selected from a pool of private keys, and a list with the key identifiers of the private keys shared by said vehicle node and the other vehicle nodes that have most recently contacted said RSU for a predetermined period of time; such that two nodes are able to establish a secure connection without further interaction by deriving a shared secret which is a cryptographic hash function of the keys shared by said two nodes.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 21, 2015
    Inventors: Joäo Francisco Cordeiro De Oliveira Barros, Joäo Paulo Patriarca De Almeida, Mate Boban, Saurabh Shintre