Displacement signatures
AssigneeHewlett-Packard Development Company, L.P.
InventorsAlistair Coles, Aled Edwards, Christopher Newton
Life of this patent
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Abstract
In one implementation, a security management system accesses a displacement signature defined in relation to physical contact with a surface and determines that the displacement signature is correlated with a known displacement signature. The security management system then performs an operation in response to determining that the displacement signature is correlated with the known displacement signature.
Claims15
A processor-readable medium including code representing instructions that when executed at a processor cause the processor to:
- access a displacement signature defined in relation to physical contact with a surface;
- determine that the displacement signature is correlated with a known displacement signature;
- and
- perform an operation in response to determining that the displacement signature is correlated with the known displacement signature.
A security management system, comprising:
- a displacement module to define a displacement signature for a surface and to monitor movement of a device;
- a correlation module to determine whether the displacement signature is correlated with a known displacement signature;
- and
- a security module in communication with the correlation module and the displacement module to establish a trusted state of an entity if the displacement signature is correlated with the known displacement signature and to revoke the trusted state of the entity if the displacement module determines the device has moved more than a threshold distance.
A security management method, comprising:
- detecting at an accelerometer of a device displacement of the device in a first direction along a surface substantially perpendicular to movement of the device in a second direction along the surface;
- defining a displacement signature based on the detecting;
- determining that the displacement signature is correlated with a known displacement signature;
- and
- establishing a trusted state of an entity if the displacement signature is correlated with the known displacement signature.
Dependencies are inferred from the claim text.