Introduction

The SHA104 is a member of the Microchip Technology Inc. CryptoAuthentication™ product family used in accessory or disposable applications. The device provides 128 bits of symmetric security targeted for disposable and ecosystem control applications, is intended to be used as a companion device and is microcontroller/microprocessor agnostic. The device can be used in systems where either the host can assist in the authentication through the use of a challenge-response pair or, for more security, can be used with a host side security device to perform a CheckMAC operation. The SHA104 can be used in conjunction with the SHA105 or other Microchip CryptoAuthentication host side devices.