Voice Encrypted Recognition Authentication - VERA

We propose VERA - an authentication scheme where sensitive data on mobile phones can be secured or whereby services can be locked by the user´s voice. Our algorithm takes use of acoustic fingerprints to identify the personalized voice. The security of the algorithm depends on the discrete logarithm problem in ZN where N is a safe prime. Further we evaluate two practical examples on Android devices where our scheme is used: First the encryption of any data(set). Second locking a mobile phone. Voice is the basic for both of the fields.