Maxim’s DS28E83 IC is a DeepCover, radiation resistant, 1-wire secure authentica­tor that provides a core set of cryptographic tools derived from integrated asymmetric (ECC-P256) and symmetric (SHA-256) security functions. The device integrates a FIPS-compatible true random number generator (TRNG), 10 Kb of secured OTP, one configurable GPIO, and a unique 64-bit ROM identification number (ROM ID).

A NIST defined P-256 curve operates the ECC public/private key capabilities includes FIPS 186-compliant ECDSA signature generation and verification to support a bidirectional asymmetric key authentication model. The SHA-256 secret key capabilities are compliant with FIPS 180 and are flexibly used either in conjunction with ECDSA operations or independently for multiple HMAC functions.

The GPIO pin can be operated under command control and include configurability supporting authenticated and non-au­thenticated operation, including an ECDSA-based crypto-robust mode to support secure boot of a host processor.