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Chipset security offload engine

A security engine and security technology, applied in computer security devices, instruments, televisions, etc., can solve the problems of consuming CPU clock cycles and heavy burdens

Active Publication Date: 2010-05-19
NVIDIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That's a heavy load for a CPU running at multi-megahertz clock rates
Also, in some multimedia systems, the ability to process several video streams simultaneously is required such that the total encryption / decryption burden imposed on the CPU can consume most of the CPU clock cycles in the worst case

Method used

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  • Chipset security offload engine
  • Chipset security offload engine
  • Chipset security offload engine

Examples

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Embodiment Construction

[0021] figure 1 is a block diagram of a digital content system 100 according to one embodiment of the present invention. The digital content system 100 includes a bridge 110 having a security engine 112 . According to one embodiment of the present invention, security services (such as encryption of data for at least one device post-processing program from CPU 120 ) are offloaded from CPU 120 to bridge 110 using security engine 112 .

[0022] The bridge 110 may be implemented as a single chip (eg, a cluster of chips), or as part of the same chip on which the CPU 120 is formed. As described in more detail below, bridge 100 may include any bridge used as part of a chipset to bridge central processing unit (CPU) 120 to other devices (e.g., a northbridge, a southbridge, or a northbridge and a southbridge). The combination).

[0023] Security engine 112 performs cryptographic services within bridge 110 . Exemplary encryption services include encryption, decryption, and transcod...

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PUM

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Abstract

The invention discloses a bridge having a security engine. The bridge permit cryptographic services to be offloaded from a central processing unit to the bridge.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to Provisional Application No. 60 / 636,637, filed December 15, 2004, the contents of which are incorporated herein by reference. [0003] This application relates to a commonly assigned co-pending application filed on the same day as this application in the United States Patent and Trademark Office, Attorney Docket No. NVID-106 / 02US, entitled "Apparatus, System, and Method for Digital Content Protection" patent application, the contents of which are incorporated herein by reference. technical field [0004] The present invention generally relates to techniques for providing digital content protection. More particularly, the present invention relates to techniques for offloading aspects of digital content protection from a central processing unit (CPU). Background technique [0005] The problem that arises in a large number of consumer products is that digital conten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/913G06F21/00G06F21/60
CPCG06F21/602G06F15/00
Inventor 迈克尔·B·考克斯亨利·帕卡德·莫尔顿布赖恩·基思·朗根多夫戴维·G·里德
Owner NVIDIA CORP