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Content-addressable memory based enforcement of configurable policies

Patent ·
OSTI ID:1130455
A monitoring device for monitoring transactions on a bus includes content-addressable memory ("CAM") and a response policy unit. The CAM includes an input coupled to receive a bus transaction tag based on bus traffic on the bus. The CAM stores data tags associated with rules of a security policy to compare the bus transaction tag to the data tags. The CAM generates an output signal indicating whether one or more matches occurred. The response policy unit is coupled to the CAM to receive the output signal from the CAM and to execute a policy action in response to the output signal.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,719,925
Application Number:
12/546,740
OSTI ID:
1130455
Country of Publication:
United States
Language:
English

References (3)

A hardware-based memory acquisition procedure for digital investigations journal February 2004
Integrating cache coherence protocols for heterogeneous multiprocessor system. Part 2 journal September 2004
Packet classification on multiple fields journal October 1999