Near sound data transfer

Source: Wikipedia, the free encyclopedia.

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.[1] The technology uses a phone's audio input and output (speaker and microphone) functionality and thus is compatible with mobile phones in use worldwide.

Applications

NSDT is primarily used for

Tagpay
. It is also used to securely open doors and enable authentication on websites.

See also

Notes and references