Developer Guide

  • 10/27/2020
  • Public Content

Secure Storage Guidelines

Before performing a read or write operation on an existing AR file that contains data, a setProperty action should be performed to assign it the AR property. This action should be performed at the beginning of each session involving reading or writing. Failing to do so can cause a UtilSecurityException when the read or write is performed. Following are details of what can happen in different scenarios:
After OS reset, without first performing setProperty:
•    readFlashData, writeFlashData and getFlashDataSize cause a UtilSecurityException •    eraseFlashData and setProperty operations succeed •    getProperty returns True
After Clearing the RTC (without Return to Factory Default), without first performing setProperty:

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804