×

Device with multiple one-time pads and method of managing such a device

  • US 20080031456A1
  • Filed: 07/21/2006
  • Published: 02/07/2008
  • Est. Priority Date: 09/29/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method of managing a device arranged to carry out security-related tasks using one-time pad data, the method comprising:

  • holding a plurality of one-time pads, each pad having a different security rating and being intended for use by the device in executing a task to that security rating,obtaining new secret random data by a process with an associated security rating; and

    using the new secret random data to provision a particular said one-time pad with one-time pad data;

    the method further comprising matching one of said particular one-time pad and said process to the other of said pad and process such that the security rating of said process is as least as good as that of said particular one-time pad.

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