How ChipDNA PUF technology boosts a secure IC’s security level

September 01, 2021 // By Stéphane di Vito
How ChipDNA PUF technology boosts a secure IC’s security level

ChipDNA is Maxim’s implementation of a PUF. A PUF is a function – a relation between some input parameters and an output value – derived from some variable properties of a micro circuit. Circuits have unpredictable and uncontrolled physical properties, such as the threshold voltage of a transistor, or delays of the stages of a ring oscillator. Even when they have the same logical design, all circuits are different when it comes to atoms because of natural, fundamentally random variations of the manufacturing process.

Technologies like Maxim Integrated’s ChipDNA physically unclonable function (PUF) technology help reduce the time-to-market penalty when developing a new secure, network-connected device.

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