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Analog Devices DS2478 DeepCover® Automotive Secure Coprocessor can compute any required HMACs or ECDSA signatures to do any operation on the DS28E40 or DS28C40 ICs. This coprocessor supports multiple asymmetric (ECC P-256) and symmetric (SHA-256) security functions for the DS28E40/DS28C40 ICs. In addition to the security services provided by the hardware-implemented ECC and SHA-256 engines, the device integrates a FIPS/NIST True Random Number Generator (TRNG). The device also integrates a 6Kb of secured OTP (3Kb user, 3Kb keys/secrets), one configurable GPIO pin, and a unique 64-bit ROM identification number (ROM ID).
The Analog Devices DS2478 DeepCover embedded security solutions clock sensitive data under multiple layers of advanced security to provide the most secure key storage possible. To protect against device-level security attacks, invasive and noninvasive countermeasures are implemented, including an active die shield, encrypted storage of keys, and algorithmic methods. Typical applications include automotive secure authentication, IoT node crypto-protection, identification and calibration automotive of parts/tools, and secure storage of cryptographic keys for a host controller.
