Near sound data transfer
Near Sound Data Transfer (NSDT) is a sound-based mobile transaction technology developed and patented by Tagattitude since 2005. NSDT uses a one time password sent through the audio channel of a mobile device to create an electronic signature enabling secure transactions. Because all mobile devices have an audio channel (speaker and microphone) built in this technology is compatible with all mobile phones in use worldwide.
Notes and references
- Le cash, c'est fini: Quels sont les modes de paiement du futur dans 20 Minutes du 19 mars 2010