Patents by Inventor ChenFei Wu

ChenFei Wu 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).

  • Secure storage and sharing of data by hybrid encryption using predefined schema
    Patent number: 9811680
    Abstract: The claimed subject matter includes techniques for storing, retrieving and sharing files. An example system includes a key generator module to generate a secret key. The example system also includes a symmetric encryption module to encrypt raw data by symmetric encryption using the secret key. The example system further includes an asymmetric encryption module to encrypt the secret key and symmetric encryption information by asymmetric encryption using a public key to produce a key block. The examples system also further includes a schema module to generate a ciphertext file with predefined schema including asymmetric encryption information, the key-block, and the encrypted raw data. The example system also includes a storage module to send the ciphertext file including the encrypted raw data to a server for storage.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 7, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Guru Balasubramanian, ChenFei Wu, Wenyuan Wang, Jingjing Zhao
  • SECURE STORAGE AND SHARING OF DATA BY HYBRID ENCRYPTION USING PREDEFINED SCHEMA
    Publication number: 20160357980
    Abstract: The claimed subject matter includes techniques for storing, retrieving and sharing files. An example system includes a key generator module to generate a secret key. The example system also includes a symmetric encryption module to encrypt raw data by symmetric encryption using the secret key. The example system further includes an asymmetric encryption module to encrypt the secret key and symmetric encryption information by asymmetric encryption using a public key to produce a key block. The examples system also further includes a schema module to generate a ciphertext file with predefined schema including asymmetric encryption information, the key-block, and the encrypted raw data. The example system also includes a storage module to send the ciphertext file including the encrypted raw data to a server for storage.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 8, 2016
    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Guru Balasubramanian, ChenFei Wu, Wenyuan Wang, Jingjing Zhao