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15 | 15 | The DS28E83 DeepCover authenticator is designed to survive gamma radiation sterilization exposure that medical accessories are subjected to. It operates from the single- contact 1-Wire® interface and provides ECDSA or SHA-256 bidirectional authentication with additional features including 10Kb of NVM and secure GPIO. Features • Resistant to 75kGy (kiloGray) Gamma Radiation • ECDSA-P256 and SHA-256 Based Bidirectional Authentication • 10Kb User-Programmable OTP • GPIO Pin with Optional Authenticated Control Applications • Medical Accessory Authentication • Use Management of Limited Life Medical Products • Secure ON/OFF Control of Medical Accessories • Secure Download of Peripheral Configuration Data mouser.com/maxim-DS28E83/ Maxim DS28E83 DeepCover ® Radiation Resistant Authenticator Maxim DS2465 DeepCover ® Secure Coprocessor with SHA-256 The DeepCover Secure Coprocessor (DS2465) is a SHA-256 coprocessor with a built-in 1-Wire ® master that provides the SHA-256 and memory functionality required by a host system to communicate with and operate a 1-Wire SHA-256 slave. Features • Secure System Key Storage • SHA-256 Master/Slave Authentication • 1-Wire Master Port with Selectable Active or Passive 1-Wire Pullup Applications • IoT Node crypo-protection • Sensor Authentication • Counterfeit Prevention mouser.com/maxim-deepcover-sha256/ ChipDNA ™ Embedded Security PUF Technology By Scott Jones, Managing Director, Embedded Security You Can't Steal a Key That Isn't There Sophisticated invasive attacks are frequently launched in an attempt to obtain cryptographic keys from secure ICs. If obtained, the security provided by the IC is thoroughly compromised. A key derived from a physically unclonable function (PUF) provides an unprecedented level of protection against invasive attacks, since the key does not exist in memory or another static state. ChipDNA ™ PUF Technology Overview In our PUF-based ChipDNA™ secure authenticators (Figure 1), each key exists as a precise analog characteristic of the IC, making it immune to all known invasive attack tools and capabilities. Each IC's unique ChipDNA-generated key is repeatable over temperature, voltage, and IC operating life conditions. ChipDNA technology provides an exponential increase in protection against the invasive and reverse engineering attacks that hackers apply. Attempts to probe or observe ChipDNA operation modifies the underlying circuit characteristics, 1-WIRE® INFC & CMD 64-BIT ROM ID BUFFER RNG 2Kb E2 ARRAY ECC P256 SHA-256 PRIVATE-KEY USER MEMORY, 1x ECDSA PUBLIC- KEY & CERTIFICATE ChipDNA™ Figure 1: Block diagram of a DeepCover ® secure authenticator with ChipDNA PUF protection. (Source: Maxim Integrated) " "

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