![]() | Although general semiconductor designs are designed for the purpose of forming via holes, via PUF is designed by choosing between the formation of via holes and non-formation of via holes.Accordingly, the Via PUF has unpredictable randomness (meeting the NIST SP800-90B standard), in which short and open appear half and half. |
![]() | Due to the characteristics of the Via Hole, which is a passive device, it has a homeostasis that does not change its characteristics in any environment change. |
![]() | Since it is indistinguishable from general Via, it has security that cannot be distinguished even with reverse engineering |
![]() | Although general semiconductor designs are designed for the purpose of forming via holes, via PUF is designed by choosing between the |
![]() | Due to the characteristics of the Via Hole, which is a passive device, it has a homeostasis that does not change its characteristics in any environment change. |
![]() | Since it is indistinguishable from general Via, it has security that cannot be distinguished even with reverse engineering |
Root of Trust (RoT) refers to hardware and software-based functions that are not replicated or changed.As a system that the computer operating system (OS) is always reliable, it is characterized by stabilitythat is not penetrated by various types of hacking attacks. |
![]() | RoT cannot be achieved with SW alone, and it is important to have a HW-based RoT. |
![]() | Create a Unique ID and use this random number to generate an encryption key ▶ Root of Trust |
![]() | Via PUF is the foundation of RoT, the source of all trust, by providing the characteristics of a unique Silicon Inborn ID. |
![]() | Instead of injecting a unique ID from the outside, it is generated internally: improved security |
![]() | Due to the characteristics of the Via Hole, which is a passive device, it has a homeostasis that does not change its characteristics in any environment change. |
![]() | RoT cannot be achieved with SW alone, and |
![]() | Create a Unique ID and use this random number to generate |
![]() | Via PUF is the foundation of RoT, the source of all trust, |
![]() | Instead of injecting a unique ID from the outside, |
![]() | Due to the characteristics of the Via Hole, which is a passive device, it has a homeostasis that does not change |
Properties | RoT Function | Implementation |
Uniqueness | Create a unique ID on a physical device | Via PUF |
Integrity | Integrity verification function for firmware | Via PUF + asymmetric key algorithm |
Execution Security | Secure firmware update | Via PUF + asymmetric key algorithm |
Data Security | Secure Storage (Digital key or Certificate protection) | Via PUF |
Randomness | Unpredictable function by securing randomness | Via PUF |
Encryption | Crypto Accelerator | Via PUF + encryption algorithm |
Communication security | Generate private key in communication protocol | Via PUF + communication algorithm |
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What is Hardware Root of Trust (HRoT)? |