Abstract: This document shows how Dallas Semiconductor/Maxim's SHA iButtons® and 1-Wire® devices 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. 你所查询的应用笔记提供Acrobat PDF格式： APPLICATION NOTE 150:Small Message Encryption using SHA Devices (PDF, 121kB) 免费Acrobat PDF阅读软件可从以下网站获得： http://chinese-s.adobe.com/products/acrobat/readstep2.html 我们期待您的反馈！ 喜欢？不喜欢？有待改善？或为我们提供建议？请与我们联系 — 我们将根据您的意见或建议改善我们的工作。 网页评价或提供建议 自动更新 需要自动接收最新发布的应用笔记吗？请订阅EE-Mail™ (English only)。 更多信息   APP 150: Feb 04, 2002 DS1961S 带有SHA-1引擎的1k位EEPROM iButton   DS1963S SHA iButton DS2432 1k位、保护型1-Wire EEPROM，带有SHA-1引擎 数据资料缩写本 (PDF, 272kB)   下载，PDF格式 (121kB)  AN150, AN 150, APP150, Appnote150, Appnote 150