Search Patents
  • Method and system for authentication and preserving the integrity of communication, secured by secret sharing
    Patent number: 10536269
    Abstract: A system and method for providing secure communication between a source and a destination that is secured by secret sharing, during a vulnerability window in which all secret shares are collected in one or more points along the communication paths. Accordingly, during the regular operation of the communication protocol, a common random secret OTP is created by sending random bits from the sender to the receiver and the source is allowed to perform bitwise XOR operation between the information to be sent and the common random secret OTP, prior to using secret sharing. The results of the bitwise XOR operation are sent to the destination using secret sharing and the destination reconstructs the random secret and decrypts the received data, using the common established random secret. The common random secret is based on polynomial randomization being transferred from the source to the destination using secret sharing.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: January 14, 2020
    Assignee: SECRET DOUBLE OCTOPUS LTD
    Inventors: Shlomi Dolev, Shimrit Tzur-David, Chen Tetelman
  • SYSTEM AND METHOD FOR FAST, POST-QUANTUM BLOCKCHAIN CONCENSUS GENERATION AND SMART CONTRACTS EXECUTION
    Publication number: 20230186293
    Abstract: A system for performing real-time quantum-safe computation of a digital transaction using in a blockchain consensus protocol, comprising a plurality of permissioned verification servers being a plurality of distributed participants that are adapted to create common randomization to all of said participants which remains unrevealed until being used by said participants, by assigning to each participant a unique polynomial having a maximal degree being common to all participants; allowing each participant to select a random value; allowing each participant to send his selected random value to all other participants using a secret sharing scheme based on points on his unique polynomial, such that said secret hides the details of said selected random value and all other participants that receive shares of said selected random value will not be able to reconstruct said selected random value from the received shares; create a pool of all shares of all participants; build a quantum-safe consensus of honest participa
    Type: Application
    Filed: April 27, 2021
    Publication date: June 15, 2023
    Inventors: Shlomi DOLEV, Ziyu WANG
  • METHOD AND SYSTEM FOR PERFORMING BROADCAST ENCRYPTION WITH REVOCATION CAPABILITY
    Publication number: 20200186347
    Abstract: A broadcast encryption method that allows a broadcaster to send encrypted content to a set of users such that only a subset of authorized users can decrypt the content, and to perform both temporary and permanent revocation of users. Accordingly, during a Setup stage, a Key Service generates a public key and a Master Secret Key (MSK) and sends the Public Parameters PP used to generate the public key to a broadcaster and to all users. The broadcaster uses the Public Parameters PP to create a message M, with which the broadcaster encrypts the content, and further creates a Cipher Text (CT), which is sent to all users. During a Key Gen stage, whenever a user wishes to decrypt the message M for decrypting the content, the user sends a request with his ID1 to the Key Service. The Key Service generates a corresponding secret key SKID1 and the secret key SKID1 is sent to the user ID1 via a secure data channel.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 11, 2020
    Inventors: Shlomi DOLEV, Niv GILBOA, Dan BROWNSTEIN
  • MOTOR-DRIVEN CHAIR STEERED BY SEAT ROTATION
    Publication number: 20180250179
    Abstract: A motor-driven chair has a central drive wheel located beneath the seat and linked so as to be aligned with the facing direction of the seat. A user turns the direction of motion by rotating the seat relative to a surrounding stabilizer assembly so as to turn the seat and the drive wheel towards a direction in which he wishes to move. A suspension arrangement maintains a desired distribution of user load between the drive wheel and the stabilizer assembly. A combination of fixed-axis wheels with castered wheels provides angular anchoring of the stabilizer assembly to facilitate the seat steering process. The entire structure is preferably foldable for easy transportation and storage.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 6, 2018
    Inventors: Galin OMER, Eyal Dolev, Ehud Nagler, Sharon Shulshtein, Amit Nir, Shlomi Avital, Shay Cohen
  • Motor-driven chair steered by seat rotation
    Patent number: 10335330
    Abstract: A motor-driven chair has a central drive wheel located beneath the seat and linked so as to be aligned with the facing direction of the seat. A user turns the direction of motion by rotating the seat relative to a surrounding stabilizer assembly so as to turn the seat and the drive wheel towards a direction in which he wishes to move. A suspension arrangement maintains a desired distribution of user load between the drive wheel and the stabilizer assembly. A combination of fixed-axis wheels with castered wheels provides angular anchoring of the stabilizer assembly to facilitate the seat steering process. The entire structure is preferably foldable for easy transportation and storage.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: July 2, 2019
    Assignee: TRAVELSYS4U LTD.
    Inventors: Galin Omer, Eyal Dolev, Ehud Nagler, Sharon Shulshtein, Amit Nir, Shlomi Avital, Shay Cohen
Narrow Results

Filter by US Classification