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主要特征

应用/用途

技术文档

数据资料 多密钥 Feb 17, 1998

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主要特征

  • Three secure read/write data partitions of 384 bits each
  • 64-bit security match and I.D. fields provide positive identification and security for each secure data partition
  • One non-secure read/write partition of 512 bits
  • Electrical tampering is met with seemingly valid, yet false, responses
  • Secure data cannot be deciphered by reverse engineering
  • Access via Dallas 3-Wire Interface

应用/用途

  • 结构管理
  • 软件授权
  • 系统接入控制

描述

The DS1205V MultiKey has three, 384-bit read/write data partitions, each protected by its own 64-bit I.D. and security match fields. The security match field, programmed by the customer, can never be read from the DS1205V. An additional security feature, the Intelligent Response generator, uses invalid security match codes as the "seed" to trigger seemingly valid, yet false responses to electronic attack.

Communication with the DS1205V is via the Dallas 3-Wire Interface (Data, Clock, Reset-bar). These signals are under host software control.

The DS1205V MultiKey is designed to be plugged into a standard 5-pin, 0.1 inch center SIP receptacle. A guide is provided to insure proper alignment with the receptacle.

System designers can use the DS1205V to insure that their valuable firmware can only by run when a valid key is present. The MultiKey can also contain data on system configurations and upgrade options. Designers may choose to allow maintenance or diagnostic routines to be run only by an authorized key holder.

See the DS1205S MultiKey Chip data sheet for implementation details.

技术文档

数据资料 多密钥 Feb 17, 1998

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心