Patents by Inventor Benjamin Hong Meng TAN

Benjamin Hong Meng TAN 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).

  • Method and system for generating/decrypting ciphertext, and method and system for searching ciphertexts in a database
    Patent number: 10693626
    Abstract: There is provided a method of generating a ciphertext. The method includes encrypting an input data to produce an encrypted data, and randomizing the encrypted data to produce the ciphertext. In particular, the randomizing process includes performing an exclusive-or (xor) operation on the encrypted data with a cipher pad, whereby the cipher pad is generated based on an xor-homomorphic function of a first key using a second key generated based on the encrypted data. There is also provided a corresponding system for generating a ciphertext, a corresponding method and system for decrypting a ciphertext, and a corresponding method and system for searching ciphertexts in a database, such as at an untrusted server.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: June 23, 2020
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Shuqin Ren, Benjamin Hong Meng Tan, Khin Mi Mi Aung, Sivaraman Sundaram
  • METHOD AND SYSTEM FOR GENERATING/DECRYPTING CIPHERTEXT, AND METHOD AND SYSTEM FOR SEARCHING CIPHERTEXTS IN A DATABASE
    Publication number: 20170048058
    Abstract: There is provided a method of generating a ciphertext. The method includes encrypting an input data to produce an encrypted data, and randomizing the encrypted data to produce the ciphertext. In particular, the randomizing process includes performing an exclusive-or (xor) operation on the encrypted data with a cipher pad, whereby the cipher pad is generated based on an xor-homomorphic function of a first key using a second key generated based on the encrypted data. There is also provided a corresponding system for generating a ciphertext, a corresponding method and system for decrypting a ciphertext, and a corresponding method and system for searching ciphertexts in a database, such as at an untrusted server.
    Type: Application
    Filed: April 23, 2015
    Publication date: February 16, 2017
    Inventors: Shuqin REN, Benjamin Hong Meng TAN, Khin Mi Mi AUNG, Sivaraman SUNDARAM