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CN106133737A 用于在芯片上系统装置中重新启用被停用的除错能力的远程站和方法 无效 - 撤回

用于在芯片上系统装置中重新启用被停用的除错能力的远程站和方法
摘要：
可在例如芯片上系统SoC装置等集成电路中安全地重新启用被停用的除错能力。在方法中，所述集成电路接收除错重新启用消息。所述除错重新启用消息包含通过私用密钥签署的除错重新启用令牌。所述除错重新启用令牌是基于所述集成电路的序列号和对称密钥的第一副本。使用对应于所述私用密钥的公共密钥证实所述除错重新启用令牌。使用所述集成电路的所述序列号且使用存储在所述集成电路的单次可编程OTP存储器中的所述对称密钥的第二副本产生比较令牌。所述集成电路将所述除错重新启用令牌和所述比较令牌进行比较。在所述除错重新启用令牌匹配于所述比较令牌的情况下在所述集成电路中重新启用所述被停用的除错能力。
摘要（英）：

A disabled debug capability may be securely re-enabled in an integrated circuit such as a system-on-a-chip (SoC) device. In a method, the integrated circuit receives a debug re-enable message. The debug re-enable message includes a debug re-enable token signed by a private key. The debug re-enable token is based on a serial number of the integrated circuit and a first copy of a symmetric key. The debug re-enable token is validated using a public key corresponding to the private key. A comparison token is generated using the serial number of the integrated circuit and using a second copy of the symmetric key stored in a one-time-programmable (OTP) memory of the integrated circuit. The integrated circuit compares the debug re-enable token and the comparison token. The disabled debug capability is re-enabled in the integrated circuit if the debug re-enable token matches the comparison token.

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