Abstract:The DS28E35 is a DeepCover® Secure Authenticator that provides a FIPS 186 based ECDSA public-key crypto-authentication method. Additional features including a 1Kb User EEPROM array, decrement-only counter, and advanced physical security combine to provide the ultimate in cost-effective IP protection, clone prevention, and peripheral authentication. Step-by-step this application note describes the necessary device setup procedure, the authentication process, and discusses user memory functions and the device’s software-controlled down-counter. An appendix includes byte-level communication sequences that correspond to each of these steps.
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