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DS28E40 - Deep Cover Automotive 1-Wire Authenticator

General Description

The DS28E40 is a secure authenticator that provides a core set of cryptographic tools derived from integrated asymmetric (ECC-P256) and symmetric (SHA-256) security functions.

Key Features

  • ECC-P256 Compute Engine.
  • FIPS 186 ECDSA P256 Signature and Verification.
  • ECDH Key Exchange for Session Key Establishment.
  • ECDSA Authenticated R/W of Configurable Memory.
  • SHA-256 Compute Engine.
  • FIPS 198 HMAC for Bidirectional Authentication.
  • SHA-256 One-Time Pad Encrypted R/W of Configurable Memory Through ECDH Established Key.
  • One GPIO Pin with Optional Authentication Control.
  • Open-Drain, 4mA/0.4V.
  • Optional SHA-256 or EC.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Click here to ask about the production status of specific part numbers. DS28E40 Deep Cover Automotive 1-Wire Authenticator General Description The DS28E40 is a secure authenticator that provides a core set of cryptographic tools derived from integrated asymmetric (ECC-P256) and symmetric (SHA-256) security functions. In addition to the security services provided by the hardware-implemented cryptographic engines, the device integrates a FIPS/NIST True Random Number Generator (TRNG), 6Kb of One-Time Programmable (OTP) memory for user data, keys and certificates, one configurable General-Purpose Input/Output (GPIO), and a unique 64-bit ROM identification number (ROM ID).