Title:
CRYPTOGRAPHIC PROTECTION OF INFORMATION IN A PROCESSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/178987
Kind Code:
A3
Abstract:
A processor [102] employs a hardware encryption module [115] in the processor's memory access path to cryptographic ally isolate secure information. In some embodiments, the encryption module is located at a memory controller [110] (e.g. northbridge) of the processor, and each memory access provided to the memory controller indicates whether the access is a secure memory access, indicating the data associated with the memory access is designated for cryptographic protection, or a non-secure memory access. For secure memory accesses, the encryption module performs encryption (for write accesses) or decryption (for read accesses) of the data associated with the memory access.
Inventors:
KAPLAN DAVID A (US)
WOLLER THOMAS ROY (US)
PEREZ RONALD (US)
WOLLER THOMAS ROY (US)
PEREZ RONALD (US)
Application Number:
PCT/US2015/017925
Publication Date:
January 28, 2016
Filing Date:
February 27, 2015
Export Citation:
Assignee:
ADVANCED MICRO DEVICES INC (US)
International Classes:
G06F21/60; G06F9/455; G06F13/16; G06F21/79
Foreign References:
| US20130227303A1 | 2013-08-29 | |||
| US20100281273A1 | 2010-11-04 | |||
| US20110246767A1 | 2011-10-06 | |||
| US20110302400A1 | 2011-12-08 | |||
| US8656482B1 | 2014-02-18 |
Other References:
See also references of EP 3111365A4
Attorney, Agent or Firm:
SHEEHAN, Adam D. (700 Lavaca StreetSuite 1400-232, Austin Texas, US)
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