Web Authentication

Efficient and effective web security is just a phone call away...

NSDT™-powered strong web authentication solution: VSA™ provides out-of-band authentication in a simple phone call!

VSA™ (Very Smart Authentication) is an easy to integrate two-factor authentication solution that protects website access using NSDT™ audio one time passwords. Each NSDT™ token is unique to a login attempt: the authorized phone must hear the token played by the website to gain access.

VSA™ guarantees that the cell phone is physically present in front of the web page. It offers a secure web authentication solution that is reliable, user friendly, and meets rigorous security standards at the lowest cost.

VSA’s value goes beyond its rigorous security characteristics (which have been audited by the BNP, Orange, ATOS, and PW Consultants)—the added advantage lies in the simplicity, ergonomics, and low cost. With VSA, you can guarantee user authentication at the lowest price (1/3 the price of an SMS) and require no modification of your clients' computers or mobile phones (an inherent quality of NSDT™).

The NSDT™ Edge...

Using an audio one-time password imparts a very high level of security to VSA™ for the following reasons:

First, the customer’s mobile phone has to be present in the chain of events because the AUDIO-OTP has a very short life. As a result, recording or copying AUDIO-OTPs is useless to hackers.
Second, the AUDIO-OTP provides extra resilience to phishing frauds that collect user information using a fake authentication form—particularly if the VSA is constructed in such a way that the AUDIO-OTP authentication is a prerequisite to password entry.
Third, no error is possible because the TagXess signal processing engine verifies the AUDIO-OTP integrity, (CRC+FEC).
Fourth, the AUDIO-OTP can be any size that is required for the ultimate security desired. Presently, the TagXess standard AUDIO-OTP is 250 milliseconds long and contains 55 bits of information.

Comparison of NSDT and SMS for web authentication

The audio one-time password (AUDIO-OTP) provided by the TagXess platform (see detailed platform description below) imparts a very high level of security to VSA for the following reasons:

v First, the customer’s mobile phone has to be present in the chain of events because the AUDIO-OTP has a very short life. As a result, recording or copying AUDIO-OTPs is useless to hackers.

v Second, the AUDIO-OTP provides extra resilience to phishing frauds that collect user information using a fake authentication form—particularly if the VSA is constructed in such a way that the AUDIO-OTP authentication is a prerequisite to password entry.

v Third, no error is possible because the TagXess signal processing engine verifies the AUDIO-OTP integrity, (CRC+FEC).

v Fourth, the AUDIO-OTP can be any size that is required for the ultimate security desired. Presently, the TagXess standard AUDIO-OTP is 250 milliseconds long and contains 55 bits of information.

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