在 CloudTrail 控制台中创建的默认KMS密钥策略

如果您在 CloudTrail 控制台 AWS KMS key 中创建，则会自动为您创建以下策略。该策略允许以下权限：

• 允许使用KMS密钥的 AWS 账户 （root）权限。

• CloudTrail 允许加密密KMS钥下的日志文件并描述KMS密钥。

• 允许指定账户中的所有用户解密日志文件。

• 允许指定账户中的所有用户为KMS密钥创建KMS别名。

• 为创建跟踪的账户的账户 ID 启用跨账户日志解密。

CloudTrail Lake 事件数据存储的默认KMS密钥策略

以下是为您在 La CloudTrail k AWS KMS key e 中的事件数据存储中使用的默认策略。

{
      "Version": "2012-10-17",
      "Id": "Key policy created by CloudTrail",
      "Statement": [
        {
          "Sid": "The key created by CloudTrail to encrypt event data stores. Created ${new Date().toUTCString()}",
          "Effect": "Allow",
          "Principal": {
            "Service": "cloudtrail.amazonaws.com"
          },
          "Action": [
            "kms:GenerateDataKey",
            "kms:Decrypt"
          ],
          "Resource": "*"
        },
        {
          "Sid": "Enable IAM user permissions",
          "Effect": "Allow",
          "Principal": {
            "AWS": "arn:aws:iam::account-id:root"
          },
          "Action": "kms:*",
          "Resource": "*"
        },
        {
          "Sid": "Enable user to have permissions",
          "Effect": "Allow",
          "Principal": {
            "AWS" : "arn:aws:sts::account-id:role-arn"
          },
          "Action": [
            "kms:Decrypt",
            "kms:GenerateDataKey"
           ],
          "Resource": "*"
        }
      ]
    }

跟踪的默认KMS密钥策略

以下是为您在跟踪中使用的创建的默认策略。 AWS KMS key

注意

该策略包括一项声明，允许跨账户使用密钥解密日志文件。KMS

{
    "Version": "2012-10-17",
    "Id": "Key policy created by CloudTrail",
    "Statement": [
        {
            "Sid": "Enable IAM user permissions",
            "Effect": "Allow",
            "Principal": {
                "AWS": [
                    "arn:aws:iam::account-id:root",
                    "arn:aws:iam::account-id:user/username"
                ]
            },
            "Action": "kms:*",
            "Resource": "*"
        },
        {
            "Sid": "Allow CloudTrail to encrypt logs",
            "Effect": "Allow",
            "Principal": {
                "Service": "cloudtrail.amazonaws.com"
             },
            "Action": "kms:GenerateDataKey*",
            "Resource": "*",
            "Condition": {
                "StringEquals": {
                    "aws:SourceArn": "arn:aws:cloudtrail:region:account-id:trail/trail-name"
                },
                "StringLike": {
                    "kms:EncryptionContext:aws:cloudtrail:arn": "arn:aws:cloudtrail:*:account-id:trail/*"
                }
            }
        },
        {
            "Sid": "Allow CloudTrail to describe key",
            "Effect": "Allow",
            "Principal": {
                "Service": "cloudtrail.amazonaws.com"
             },
            "Action": "kms:DescribeKey",
            "Resource": "*"
        },
        {
            "Sid": "Allow principals in the account to decrypt log files",
            "Effect": "Allow",
            "Principal": {
                "AWS": "*"
             },
            "Action": [
                "kms:Decrypt",
                "kms:ReEncryptFrom"
            ],
            "Resource": "*",
            "Condition": {
                "StringEquals": {
                    "kms:CallerAccount": "account-id"
                },
                "StringLike": {
                    "kms:EncryptionContext:aws:cloudtrail:arn": "arn:aws:cloudtrail:*:account-id:trail/*"
                }
            }
        },
        {
            "Sid": "Allow alias creation during setup",
            "Effect": "Allow",
            "Principal": {
                "AWS": "*"
             },
            "Action": "kms:CreateAlias",
            "Resource": "arn:aws:kms:region:account-id:key/key-id",
            "Condition": {
                "StringEquals": {
                    "kms:ViaService": "ec2.region.amazonaws.com",
                    "kms:CallerAccount": "account-id"
                }
            }
        },
        {
            "Sid": "Enable cross account log decryption",
            "Effect": "Allow",
            "Principal": {
                "AWS": "*"
            },
            "Action": [
                "kms:Decrypt",
                "kms:ReEncryptFrom"
            ],
            "Resource": "*",
            "Condition": {
                "StringEquals": {
                    "kms:CallerAccount": "account-id"
                },
                "StringLike": {
                    "kms:EncryptionContext:aws:cloudtrail:arn": "arn:aws:cloudtrail:*:account-id:trail/*"
                }
            }
        }
    ]
}