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公开(公告)号:US07564345B2
公开(公告)日:2009-07-21
申请号:US11273920
申请日:2005-11-14
Applicant: Srinivas Devadas , Thomas Ziola
Inventor: Srinivas Devadas , Thomas Ziola
IPC: G08B1/08
CPC classification number: H04L9/3278 , G06F21/31 , G06F21/445 , G06F21/602 , G06F21/76 , G06F2221/2129 , G11C7/24 , G11C16/20 , G11C16/22 , G11C2029/4402 , G11C2029/5002 , H04L9/0838 , H04L9/0877 , H04L9/304 , H04L2209/56 , H04L2209/603 , H04L2209/805
Abstract: A key is determined from a volatile response using circuitry on the device. The volatile response depend on process variation in fabrication of the device. Error control data that depends on the first volatile response can be computed, stored externally to the device, and then used to generate the key using a volatile response using the circuit. Applications of volatile keys include authentication and rights management for content and software.
Abstract translation: 使用设备上的电路从易失性响应中确定密钥。 挥发性响应取决于器件制造过程的变化。 可以计算取决于第一易失性响应的错误控制数据,存储在设备的外部,然后用于使用电路的易失性响应生成密钥。 易失性密钥的应用包括对内容和软件的认证和权限管理。