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# 需要认证才能使用密钥 AWS KMS
<a name="require-attestation-for-kms-key"></a>

**调查**  
我们很乐意听取您的意见。请通过[简短的调查](https://amazonmr.au1.qualtrics.com/jfe/form/SV_cMxJ0MG3jU91Fk2)提供 AWS 有关 PRA 的反馈。

以下 AWS Key Management Service (AWS KMS) 密钥策略允许 AWS Nitro Enclave 实例仅在请求中安全区的认证文档与条件语句中的测量值相匹配时使用 KMS 密钥。本策略仅允许受信任的 Enclave 解密数据。有关本策略如何帮助保护组织中的隐私和个人数据的更多信息，请参阅本指南中的 [AWS 硝基飞地](personal-data-account.md#nitro-enclaves)。有关可在密钥策略和 AWS Identity and Access Management (IAM) 策略中使用的 AWS KMS 条件密钥的完整列表，请参阅[的条件密钥 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"
            }
         }
      }
   ]
}
```