An authentication system is provided comprising a plurality of wearable biometric sensing devices and a wearable computing means. The plurality of wearable biometric sensing devices are adapted to measure a user's Electrocardiogram (ECG) and at least one of Electrodermal Activity (EDA) and an electromyograph (EMG) signal, communicate with the wearable computing means, and be incorporated in or on clothing in a manner in contact with skin. The wearable computing means is adapted to determine user authentication and physiological information based on measurements from one or more of the plurality of wearable biometric sensing devices. A method of operating the authentication system is also provided.
