1. A system for biometric identification via retina scanning with liveness detection, the system comprising: an image acquisition subsystem adapted to acquire at least one non-mydriatic image of a retina and to acquire at least one non-mydriatic image of blood flow therethrough; an image analysis subsystem comprising one or more processors adapted to: analyze a retina image to identify retina blood vessels; identify a plurality of components of the retina blood vessels; calculate a data set that represents the identified components; compare the calculated data set representing the components against at least one pre-stored data set representing retina components; determine whether the calculated data set corresponds to the pre-stored data set; and analyze the blood flow image to determine whether the imaged retina is composed of live tissue; and determine whether to grant access to a resource based on the correspondence of the calculated data set to the pre-stored data set and the imaged retina is composed of live tissue.