kms-key-policy-for-org-cloudtrail.json

{
  "Version": "2012-10-17",
  "Id": "cloudtrail-kms-key",
  "Statement": [
    {
      "Sid": "Enable IAM User Permissions",
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::[SecurityAccountID]:root"
      },
      "Action": "kms:*",
      "Resource": "*"
    },
    {
      "Sid": "Allow use of the key",
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::[LogArchiveAccountID]:root"
      },
      "Action": [
        "kms:Encrypt",
        "kms:Decrypt",
        "kms:ReEncrypt*",
        "kms:GenerateDataKey*",
        "kms:DescribeKey"
      ],
      "Resource": "*"
    },
    {
      "Sid": "AllowuseofthekeyFromCloudTrail",
      "Effect": "Allow",
      "Principal": {
        "Service": "cloudtrail.amazonaws.com"
      },
      "Action": [
        "kms:Encrypt",
        "kms:Decrypt",
        "kms:ReEncrypt*",
        "kms:GenerateDataKey*",
        "kms:DescribeKey"
      ],
      "Resource": "arn:aws:kms:Region:account_ID:key/key_ID",
      "Condition": {
        "StringLike": {
          "kms:EncryptionContext:aws:cloudtrail:arn": [
            "arn:aws:cloudtrail:*:[security-tooling-account-id]:trail/*"
          ]
        },
        "StringEquals": {
          "aws:SourceArn": "arn:aws:cloudtrail:region:[security-tooling-account-id]:trail/trailName"
        }
      }
    },
    {
      "Sid": "Allow attachment of persistent resources",
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::[LogArchiveAccountID]:root"
      },
      "Action": [
        "kms:CreateGrant",
        "kms:ListGrants",
        "kms:RevokeGrant"
      ],
      "Resource": "*",
      "Condition": {
        "Bool": {
          "kms:GrantIsForAWSResource": "true"
        }
      }
    }
  ]
}