Pain points

Armed forces are encountered with an ever increasing set of challenges in defending cyber security from the threat of attack due to a greater dependence on computer systems and a reliance on connected networking. As cyber systems become increasingly interconnected, a multi-layered and dynamic security system becomes imperative. With increasingly networked systems, the defense sector has been presented with a whole array of emerging challenges in cyber defense.

Identification Friend or Foe (IFF) is an identification system designed for command and control. It enables military and civilian air traffic control interrogation systems to identify aircraft, vehicles or forces as friendly and to determine their bearing and range from the interrogator. Such systems are useful for preventing action against friendly forces.

The military systems on a battlefield must accurately identify potential targets as friend-or-foe when detected within range of available weapon systems. IIF means that military commanders are repeatedly faced with the onerous decision whether to engage a detected target while avoiding accidental fratricide.


In the midst of battle, it is very difficult to identify your friendlies or targets. Current solution to the problem is to identify friendlies from their devices using static information. OTAC can generate dynamic signals from the device, without the internet.

  • Provide unidirectional code generated by the client without communication with the server.
  • Generate a dynamic code that changes every time and is safe from hacking and leakage.
  • Block attacks in advance with one-time code that does not allow cloning and spoofing attacks.
  • Protect devices by issuing a unique code that never overlaps with other connected devices.

- OTAC for IFF

AI 스피커 로그인 및 결제

매번 변경되는 센스톤의 일회성 인증 코드를 본인의 고유 음성으로 읽는 것만으로 AI 스피커를 활성화시킬 수 있습니다. 진공 청소기, TV, 냉장고, 쇼핑 등 IoT 기기와의 페어링부터 결제까지 안전한 인증을 바탕 으로 AI 스피커 기술과 생태계를 확장할 수 있습니다.


OTAC is a revolutionary authentication technology enabling such IFF systems to be able to generate a unique, dynamic and random value without a network, to verify such values, and identify targets in one simple unidirectional process. OTAC sends a one-way code to help identify allies, transmits a random code to prevent unauthorized use due to enemy signal hijacking, and ensures the safety of allies by generating an identifiable code even in the off-the-network environment.


OTAC, developed by SSenStone, is the original technology that provides all of the following features at the same time.

Main Image

    OTAC is a dynamic code, which means the code keeps changing. As a result, you don’t need to worry about any leak of your personal information, such as your card details, because the codes must have already been changed when others try to use them.

    The network connection is NOT necessary at all for generating OTAC.

    Reducing an authentication stage that requires the network connection directly means there are fewer gateways for the hackers to access our personal information.

    Moreover, this feature enables users to authenticate even when they are in networkless environments, such as on the plane, underground, rural or foreign areas.

    swIDch can guarantee that the code never duplicates with anyone at any given moment.

    There is NO chance of someone else having the same code.

    The users or their devices can be identified with the code alone.

    Once OTAC has been generated, providing OTAC alone is already fully sufficient to identify the user as the code is unique.

    It means, you can forget about the bundles of static information including IDs and passwords.

University of surrey
The University of Surrey, one of the leading global cyber security companies in the UK, conducted OTAC algorithm analysis and academic verification of SSenStone. For the full text of the thesis, please visit the University of Surrey website and download the report.

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