Continuous authentication system and method based on BioAura

A system for continuous authentication of a user of a computing device for use with a plurality of wireless wearable medical sensors (WMSs) and a wireless base station configured to receive a biomedical data stream (biostream) from each of the plurality of WMSs, the biostream from a single WMS lacking enough discriminatory power to distinguish the user, the system comprising:

• a BioAura engine located on the computing device, the computing device having one or more receive buffers configured to store a plurality of biostreams, the BioAura engine being configured to:
• transmit the preprocessed plurality of biostreams to a classifier particular to a user of the computing device via a look up stage;
• and
• generate an authentication output to authenticate the user's access to the computing device based on whether the preprocessed plurality of biostreams matches a trained model of the user's plurality of biostreams via the classifier particular to the user, the trained model based on an initial training dataset comprising multi-dimensional data points containing average values of successive measurements of the retrieved biostreams over a specified time interval, the trained model being periodically updated with subsequent training datasets each comprising multi-dimensional data points containing average values of successive measurements of the retrieved biostreams over a specified time interval;
• the wireless base station having a communication engine configured to:
• retrieve the biostream from each WMS;
• preprocess the retrieved biostreams by creating a multi-dimensional data point containing average values of the retrieved biostreams over a specified time interval;
• and
• transmit the preprocessed plurality of biostreams to the computing device.

A system for continuous authentication of a user of an electronic device for use with a plurality of wireless wearable medical sensors (WMSs) and a wireless base station configured to receive a biomedical data stream (biostream) from each of the plurality of WMSs, the biostream from a single WMS lacking enough discriminatory power to distinguish the user, the system comprising:

• a BioAura engine located on a server, the BioAura engine being configured to:
• retrieve the biostreams from the wireless base station;
• preprocess the retrieved biostreams by creating a multi-dimensional data point containing average values of the retrieved biostreams over a specified time interval;
• transmit the preprocessed plurality of biostreams to a classifier particular to a user of the electronic device via a look up stage;
• and
• generate an authentication output to authenticate the user's access to the electronic device based on whether the preprocessed plurality of biostreams matches a trained model of the user's plurality of biostreams via the classifier particular to the user, the trained model based on an initial training dataset comprising multi-dimensional data points containing average values of successive measurements of the retrieved biostreams over a specified time interval, the trained model being periodically updated with subsequent training datasets each comprising multi-dimensional data points containing average values of successive measurements of the retrieved biostreams over a specified time interval.