Just no. Since old times fingerprints were used as a unique signature, not an unique id. Unique id could be something as silly as sha256(concatenate(full-na

Just no. Since old times fingerprints were used as a unique signature, not an unique id. Unique id could be something as silly as sha256(concatenate(full-name,date-of-birth,place-of-birth)) or just any unique number, like cell phone number. Again, a fingerprint or an image of a retina is a signature or password not an id or username.