Plans by a Californian school to implement facial recognition security on students' iPads have been criticised for being too expensive.Parent Jennifer Hamler has raised a petition against a plan by Encinitas Union School District to implement a solution developed by a biometrics firm in Salt Lake City called Virtual Keyring.”This program will be scanning our children's face every 60 seconds,” complains Hamler. “Collecting biometrics on children is forever. Facial biometrics is the same as a finger print or eye scan.”However, Virtual Keyring notes on its website that its facial recognition technology stores each images as an encrypted algorithm, not as an actual picture.The Virtual Keyring solution works by taking several pictures and comparing those with an encrypted image on file. The software continuously monitors to make sure it's the same person and automatically logs out if authentication fails. In a statement to 10news, Superintendent EUSD Superintendent, Timothy Baird, Ed.D, stressed that the goals of the project were to provide single sign-on capability as well as added protection of student data, and that facial recognition would be an optional feature that parents could opt into in lieu of a password.He added that funding for this project will be reimbursed by the vendor if the project does not pass the proof of concept pilot.