OTP c300 token offers enhanced two-factor authentication with challenge-response capability, which is the effective solution to the man-in-the-middleware (MITM) attack. By simply pressing the keypad, user initially input the correct Challenge phrase, which activates the OTP c300 token to generate the Response shown on the display as the one-time password. And then user can enter the dynamic OTP into the web-based form or network application to make secure authentication.

OTP c300 complies with OATH Challenge Response Algorithms (OCRA) to provide a real-time two-factor authentication. The high contrast LCD and large keypad win OTP c300 much more user satisfactions than any other token forms in the market.