The personalization of consumer electronic devices requires reading biometric signatures of individuals such as iris, fingerprints, and face recognition. However, they are often subject to attacks on hardware and software. To address this issue, we propose to develop biometric-aware pixels and use neuro-memristive processing crossbar arrays to implement biometric pattern matching within the pixels. In this work, we use a neuro-memristor array computing to implement a nearest similarity search with a Spatio-temporal encoding scheme.