Amazon Bedrock サービスの暗号化キーを監視する

Amazon Bedrock リソースで AWS KMS カスタマーマネージドキーを使用する場合、 AWS CloudTrailまたは Amazon CloudWatch Logs を使用して、Amazon Bedrock が送信するリクエストを追跡できます AWS KMS。

以下は、CreateGrant が Amazon Bedrock によって呼び出される AWS KMS オペレーションをモニタリングしてプライマリグラントを作成する AWS CloudTrail イベントの例です。

{
"eventVersion": "1.09",
    "userIdentity": {
"type": "AssumedRole",
        "principalId": "AROAIGDTESTANDEXAMPLE:SampleUser01",
        "arn": "arn:aws:sts::111122223333:assumed-role/RoleForModelImport/SampleUser01",
        "accountId": "111122223333",
        "accessKeyId": "EXAMPLE",
        "sessionContext": {
"sessionIssuer": {
"type": "Role",
                "principalId": "AROAIGDTESTANDEXAMPLE",
                "arn": "arn:aws:iam::111122223333:role/RoleForModelImport",
                "accountId": "111122223333",
                "userName": "RoleForModelImport"
            },
            "attributes": {
"creationDate": "2024-05-07T21:46:28Z",
                "mfaAuthenticated": "false"
            }
        },
        "invokedBy": "bedrock.amazonaws.com"
    },
    "eventTime": "2024-05-07T21:49:44Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "CreateGrant",
    "awsRegion": "us-east-1",
    "sourceIPAddress": "bedrock.amazonaws.com",
    "userAgent": "bedrock.amazonaws.com",
    "requestParameters": {
"granteePrincipal": "bedrock.amazonaws.com",
        "retiringPrincipal": "bedrock.amazonaws.com",
        "keyId": "arn:aws:kms:us-east-1:111122223333:key/1234abcd-12ab-34cd-56ef-123456SAMPLE",
        "operations": [
            "Decrypt",
            "CreateGrant",
            "GenerateDataKey",
            "DescribeKey"
        ]
    },
    "responseElements": {
"grantId": "0ab0ac0d0b000f00ea00cc0a0e00fc00bce000c000f0000000c0bc0a0000aaafSAMPLE",
        "keyId": "arn:aws:kms:us-east-1:111122223333:key/1234abcd-12ab-34cd-56ef-123456SAMPLE"
    },
    "requestID": "ff000af-00eb-00ce-0e00-ea000fb0fba0SAMPLE",
    "eventID": "ff000af-00eb-00ce-0e00-ea000fb0fba0SAMPLE",
    "readOnly": false,
    "resources": [
        {
"accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-east-1:111122223333:key/1234abcd-12ab-34cd-56ef-123456SAMPLE"
        }
    ],
    "eventType": "AwsApiCall",
    "managementEvent": true,
    "recipientAccountId": "111122223333",
    "eventCategory": "Management"
}

          
      

「ポリシーの作成」の手順に従って、次のリソースベースのポリシーを KMS キーにアタッチします。このポリシーには、2 つのステートメントが含まれています。

{
    "Version": "2012-10-17",
    "Id": "KMS Key Policy",
    "Statement": [
        {
            "Sid": "Permissions for imported model builders",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::account-id:user/role"
            },
            "Action": [
                "kms:Decrypt",
                "kms:GenerateDataKey",
                "kms:DescribeKey",
                "kms:CreateGrant"
            ],
            "Resource": "*"
        },
        {
            "Sid": "Permissions for imported model users",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::account-id:user/role"
            },
            "Action": "kms:Decrypt",
            "Resource": "*"
        }      
}