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The accelerating expansion of the Internet of Things brings with it a comparably expanding threat model. The growing number of endpoints require strong identities as the foundation of trust to establish and scale robust security. QuiddiKey is a secure root key generation and management solution that allows device manufacturers to secure their products with an internally generated, unique identity without the need for adding costly, security-dedicated silicon. The NIST-compliant hardware IP is based on SRAM Physical Unclonable Function (PUF) technology and is the foundation of a device’s hardware-based root of trust. The IP is agnostic to fab and technology choice and has been deployed in 150 million+ devices. QuiddiKey not only improves time to market and delivers better security at lower TCO, but paves the way for scaling the IoT to billions of devices.
Unclonable Identities for the IoT
To solve security problems in IoT systems, such as authentication, product lifecycle management, reverse engineering and cloning, every device needs an unclonable identity. This consists of a secret key, a public key and a certificate. The biggest challenge is to get these credentials into the device. QuiddiKey is embedded hardware IP that creates the secret key of the unclonable identity from within, derived using the intrinsic randomness in uninitialized SRAM. This secret key is not stored but is dynamically regenerated from the SRAM PUF inside a secure perimeter.
Completing the unclonable identity requires that a public key be generated from the secret key. And this public key can be turned into a certificate by signing it at a certificate authority. At that point the device is ready to prove its identity and set up a secure channel with another device, a server or a cloud.
Security Based on SRAM PUF
At power-up, SRAM bits settle in the one or zero state in a non-deterministic way that not even the manufacturer can predict or duplicate. That’s what makes it a physical unclonable function, or PUF, which can be used as a unique “silicon fingerprint.”
An SRAM PUF response is a noisy fingerprint, and turning it into a high-quality and secure key vault requires further processing. This is done with the QuiddiKey hardware IP. QuiddiKey reliably reconstructs the same cryptographic key under all environmental circumstances. Upon first use, called the enrollment, it generates an activation code (AC) which, in combination with the SRAM startup behavior, is used to reconstruct on demand, in real time, an intrinsic PUF key. This PUF key is never stored in flash or OTP. When it is needed later it can be reconstructed.
The intrinsic PUF key can be used as a root key for key derivation and key wrapping. A key protected by QuiddiKey is integrity protected and can be retrieved only on the same device while it will be meaningless on other devices.
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Intrinsic ID is the world’s leading digital authentication company, providing the Internet of Things with hardware-based root-of-trust security via unclonable identities for any IoT-connected device. Based on Intrinsic ID’s patented SRAM PUF technology, the company’s security solutions can be implemented in hardware or software. Intrinsic ID security, which can be deployed at any stage of a product’s lifecycle, is used to validate payment systems, secure connectivity, authenticate sensors, and protect sensitive government and military systems. Intrinsic ID technology has been deployed in more than 150 million devices. Award recognition includes the Cyber Defense Magazine InfoSec Award, the IoT Breakthrough Award, IoT Security Excellence Award, the Frost & Sullivan Technology Leadership Award and the EU Innovation Radar Prize. Intrinsic ID security has been proven in millions of devices certified by Common Criteria, EMVCo, Visa and multiple governments. Intrinsic ID’s mission: “Authenticate Everything.”
What We Do
Intrinsic ID provides embedded authentication solutions based on SRAM Physical Unclonable Function (PUF) technology. Our solutions protect digital assets and intellectual property in the most secure, seamless, cost-effective manner.
Our mission is to authenticate everything and everyone and make the connected world safer. Our silicon SRAM PUF technology can be applied to almost any chip, from tiny microcontrollers to high performance FPGAs. Our fuzzy extractor can turn noisy data like a fingerprint or SRAM PUF into secure cryptographic keys and reliable identifiers.
We commit ourselves to develop security solutions that adhere to the highest quality standards and are easy to integrate. When working with our customers, we always aim to bring the best security solution for the specific use case. We strive to be innovative and pride ourselves on always delivering on promises made.