×

Device-based PIN authentication process to protect encrypted data

  • US 10,469,469 B1
  • Filed: 03/27/2017
  • Issued: 11/05/2019
  • Est. Priority Date: 12/23/2013
  • Status: Active Grant
First Claim
Patent Images

1. A computer-implemented method for securely storing encrypted data on a computing device that includes a microprocessor and memory, the method comprising:

  • receiving a data encryption key derived from a password, wherein the data encryption key is used to encrypt data on the computing device;

    encrypting the data encryption key using a first encryption key;

    storing the encrypted data encryption key on the computing device;

    encrypting the first encryption key using a second encryption key, wherein the second encryption key is derived from a user-supplied value entered on the computing device, and wherein the user-supplied value is different from the password; and

    sending the encrypted first encryption key to a remote server.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×