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# 需要證明才能使用 AWS KMS 金鑰
<a name="require-attestation-for-kms-key"></a>

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下列 AWS Key Management Service (AWS KMS) 金鑰政策允許 AWS Nitro Enclave 執行個體只有在請求中的 enclave 證明文件符合條件陳述式中的測量結果時，才能使用 KMS 金鑰。此政策僅允許受信任的 enclav 解密資料。如需此政策如何協助保護組織中隱私權和個人資料的詳細資訊，請參閱本指南[AWS Nitro Enclaves](personal-data-account.md#nitro-enclaves)中的 。如需可用於金鑰政策和 in AWS Identity and Access Management (IAM) 政策之條件金鑰的完整清單 AWS KMS ，請參閱 [的條件金鑰 AWS KMS](https://docs.aws.amazon.com/kms/latest/developerguide/policy-conditions.html#conditions-nitro-enclaves)。

```
{
   "Version": "2012-10-17",		 	 	 		 	 	 
   "Statement": [
      {
         "Sid": "Enable enclave data processing",
         "Effect": "Allow",
         "Principal": {
            "AWS": "arn:aws:iam::123456789012:role/data-processing"
         },
         "Action": [
            "kms:Decrypt",
            "kms:GenerateDataKey",
            "kms:GenerateRandom"
         ],
         "Resource": "*",
         "Condition": {
            "StringEqualsIgnoreCase": {
               "kms:RecipientAttestation:ImageSha384": "EXAMPLE8abcdef7abcdef6abcdef5abcdef4abcdef3abcdef2abcdef1abcdef1abcdef0abcdef1abcdEXAMPLE",
               "kms:RecipientAttestation:PCR0": "EXAMPLEbc2ecbb68ed99a13d7122abfc0666b926a79d5379bc58b9445c84217f59cfdd36c08b2c79552928702EXAMPLE",
               "kms:RecipientAttestation:PCR1": "EXAMPLE050abf6b993c915505f3220e2d82b51aff830ad14cbecc2eec1bf0b4ae749d311c663f464cde9f718aEXAMPLE",
               "kms:RecipientAttestation:PCR2": "EXAMPLEc300289e872e6ac4d19b0b5ac4a9b020c98295643ff3978610750ce6a86f7edff24e3c0a4a445f2ff8EXAMPLE",
               "kms:RecipientAttestation:PCR3": "EXAMPLE11de9baee597508183477f097ae385d4a2c885aa655432365b53b812694e230bbe8e1bb1b8de748fe1EXAMPLE",
               "kms:RecipientAttestation:PCR4": "EXAMPLE6b9b3d89a53b13f5dfd14a1049ec0b80a9ae4b159adde479e9f7f512f33e835a0b9023ca51ada02160EXAMPLE",
               "kms:RecipientAttestation:PCR8": "EXAMPLE34a884328944cd806127c7784677ab60a154249fd21546a217299ccfa1ebfe4fa96a163bf41d3bcfaeEXAMPLE"
            }
         }
      }
   ]
}
```