Small Message Encryption using SHA Devices
关键词: cryptography, encryption, SHA, SHA-1, microcontroller, small message, MAC, hash, one-way, authentication, security, random number, random numbers, pad, secret, coprocessor, rotation, DS1963S, DS1961S, DS2432
Abstract: This document shows how Maxim's DS1963S SHA iButton® can be used with small microcontrollers to provide strong encryption and authentication of control and status messages, telemetry, or sensitive process control information. For low cost and low overhead, it provides nonvolatile memory, secure secret storage, secret sharing and rotation, fast SHA-1 pad generation, and a globally unique serial number. A simple microcontroller needs only provide a single port pin and a few dozen lines of code to attain quality cryptographic security.
Small Message Encryption using SHA Devices.pdf
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