Securing sensitive data using distance-preserving transformations
AssigneeMicrosoft Technology Licensing, LLC
InventorsAmer A. Hassan, Edward C. Giaimo, III
Life of this patent
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Abstract
Disclosed in some examples are methods, systems, devices, and machine-readable mediums for securing biometric data using distance-preserving transformations. A distance-preserving transformation is a function which maps elements to the same or another metric space such that the distance between the elements in the new metric space is equal to the distance between the elements in the original metric space.
Claims20
A computing device for securing biometric data used in an authentication, the computing device comprising:
- a processor;
- a memory, comprising instructions, which when performed by the processor, cause the processor to perform operations comprising:
- receiving a first set of data points representing a biometric characteristic of the user;
- determining a function parameter set for a distance-preserving transformation;
- transforming the received first set of data points to a second set of data points using the distance-preserving transformation and the function parameter set;
- and
- invoking an authentication operation for the user by transmitting the second set of data points to a network-based authentication service over a communications network.
A method for securing biometric data used in authentication of a user of a computing device, the method comprising:
- using one or more hardware processors:
- receiving a first set of data points representing a biometric characteristic of the user;
- determining a function parameter set for a distance-preserving transformation;
- transforming the received first set of data points to a second set of data points using the distance-preserving transformation and the function parameter set;
- and
- invoking an authentication operation for the user by transmitting the second set of data points to a network-based authentication service over a communications network.
A device for securing biometric data used in authentication of a user, the device comprising:
- means for receiving a first set of data points representing a biometric characteristic of the user;
- means for determining a function parameter set for a distance-preserving transformation;
- means for transforming the received first set of data points to a second set of data points using the distance-preserving transformation and the function parameter set;
- and
- means for invoking an authentication operation for the user by transmitting the second set of data points to a network-based authentication service over a communications network.
Dependencies are inferred from the claim text.