Device for data security using user selectable one-time pad
AssigneeLSI Corporation
InventorLloyd W. Sadler
Life of this patent
Estimating the term…
Abstract
Devices for securing data and method of managing a one-time pad stored in nonvolatile memory of a device. In one embodiment, the device for securing data includes: (1) a nonvolatile memory, (2) a nonvolatile memory controller coupled to the nonvolatile memory and configured to cooperate with the nonvolatile memory to make a key available when a password provided to the device is valid and (3) a self-destruct circuit coupled to the nonvolatile memory and configured to corrupt at least part of the nonvolatile memory when the password is invalid.
Claims20
A device for securing data, comprising:
- a nonvolatile memory;
- a nonvolatile memory controller coupled to said nonvolatile memory and configured to cooperate with said nonvolatile memory to make a key available when a password provided to said device is valid;
- and
- a self-destruct circuit coupled to said nonvolatile memory and configured to corrupt at least part of said nonvolatile memory when said password is invalid.
A method of managing a one-time pad stored in nonvolatile memory of a device, comprising:
- receiving a password into said device;
- employing a nonvolatile memory controller coupled to said nonvolatile memory to generate a key from said one-time pad when a password provided to said device is valid;
- and
- employing a self-destruct circuit to corrupt at least part of said nonvolatile memory when said password is invalid.
A device for securing data, comprising:
- a nonvolatile memory;
- a nonvolatile memory controller coupled to said nonvolatile memory;
- a self-destruct circuit coupled to said nonvolatile memory;
- and
- a password protection controller coupled to said nonvolatile memory controller and said self-destruct circuit and configured, when a password provided to said device is valid, to provide a signal to said nonvolatile memory controller to cause said nonvolatile memory controller to cooperate with said nonvolatile memory to make a key available from said nonvolatile memory and, when said password is invalid, selectively to provide a signal to said self-destruct circuit to cause said self-destruct circuit to corrupt at least part of said nonvolatile memory.
Dependencies are inferred from the claim text.