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En el siguiente ejemplo, un principal de IAM que ejecuta una EC2 instancia de Amazon crea y monta un volumen de datos que está cifrado con una clave KMS. Esta acción genera varios CloudTrail registros de registro.
Cuando se crea el volumen, Amazon EC2, actuando en nombre del cliente, obtiene una clave de datos cifrada de AWS KMS (GenerateDataKeyWithoutPlaintext). Luego crea una concesión (CreateGrant) que le permite descifrar la clave de datos. Cuando se monta el volumen, Amazon EC2 llama AWS KMS para descifrar la clave de datos (Decrypt).
El instanceId de la EC2 instancia de Amazon,"i-81e2f56c", aparece en el RunInstances evento. El mismo ID de instancia califica el granteePrincipal de la concesión que se crea ("111122223333:aws:ec2-infrastructure:i-81e2f56c") y el rol asumido que es la entidad principal en la llamada Decrypt ("arn:aws:sts::111122223333:assumed-role/aws:ec2-infrastructure/i-81e2f56c").
El ARN clave de la clave KMS que protege el volumen de datos aparece en las tres AWS KMS llamadas (CreateGrantGenerateDataKeyWithoutPlaintext, yDecrypt). arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab
{
"Records": [
{
"eventVersion": "1.02",
"userIdentity": {
"type": "IAMUser",
"principalId": "EX_PRINCIPAL_ID",
"arn": "arn:aws:iam::111122223333:user/Alice",
"accountId": "111122223333",
"accessKeyId": "EXAMPLE_KEY_ID",
"userName": "Alice"
},
"eventTime": "2014-11-05T21:35:27Z",
"eventSource": "ec2.amazonaws.com",
"eventName": "RunInstances",
"awsRegion": "us-west-2",
"sourceIPAddress": "192.0.2.0",
"userAgent": "AWS Internal",
"requestParameters": {
"instancesSet": {
"items": [
{
"imageId": "ami-b66ed3de",
"minCount": 1,
"maxCount": 1
}
]
},
"groupSet": {
"items": [
{
"groupId": "sg-98b6e0f2"
}
]
},
"instanceType": "m3.medium",
"blockDeviceMapping": {
"items": [
{
"deviceName": "/dev/xvda",
"ebs": {
"volumeSize": 8,
"deleteOnTermination": true,
"volumeType": "gp2"
}
},
{
"deviceName": "/dev/sdb",
"ebs": {
"volumeSize": 8,
"deleteOnTermination": false,
"volumeType": "gp2",
"encrypted": true
}
}
]
},
"monitoring": {
"enabled": false
},
"disableApiTermination": false,
"instanceInitiatedShutdownBehavior": "stop",
"clientToken": "XdKUT141516171819",
"ebsOptimized": false
},
"responseElements": {
"reservationId": "r-5ebc9f74",
"ownerId": "111122223333",
"groupSet": {
"items": [
{
"groupId": "sg-98b6e0f2",
"groupName": "launch-wizard-2"
}
]
},
"instancesSet": {
"items": [
{
"instanceId": "i-81e2f56c",
"imageId": "ami-b66ed3de",
"instanceState": {
"code": 0,
"name": "pending"
},
"amiLaunchIndex": 0,
"productCodes": {
},
"instanceType": "m3.medium",
"launchTime": 1415223328000,
"placement": {
"availabilityZone": "us-east-1a",
"tenancy": "default"
},
"monitoring": {
"state": "disabled"
},
"stateReason": {
"code": "pending",
"message": "pending"
},
"architecture": "x86_64",
"rootDeviceType": "ebs",
"rootDeviceName": "/dev/xvda",
"blockDeviceMapping": {
},
"virtualizationType": "hvm",
"hypervisor": "xen",
"clientToken": "XdKUT1415223327917",
"groupSet": {
"items": [
{
"groupId": "sg-98b6e0f2",
"groupName": "launch-wizard-2"
}
]
},
"networkInterfaceSet": {
},
"ebsOptimized": false
}
]
}
},
"requestID": "41c4b4f7-8bce-4773-bf0e-5ae3bb5cbce2",
"eventID": "cd75a605-2fee-4fda-b847-9c3d330ebaae",
"eventType": "AwsApiCall",
"recipientAccountId": "111122223333"
},
{
"eventVersion": "1.02",
"userIdentity": {
"type": "IAMUser",
"principalId": "EX_PRINCIPAL_ID",
"arn": "arn:aws:iam::111122223333:user/Alice",
"accountId": "111122223333",
"accessKeyId": "EXAMPLE_KEY_ID",
"userName": "Alice"
},
"eventTime": "2014-11-05T21:35:35Z",
"eventSource": "kms.amazonaws.com",
"eventName": "CreateGrant",
"awsRegion": "us-east-1",
"sourceIPAddress": "192.0.2.0",
"userAgent": "AWS Internal",
"requestParameters": {
"constraints": {
"encryptionContextSubset": {
"aws:ebs:id": "vol-f67bafb2"
}
},
"granteePrincipal": "111122223333:aws:ec2-infrastructure:i-81e2f56c",
"keyId": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
},
"responseElements": {
"grantId": "abcde1237f76e4ba7987489ac329fbfba6ad343d6f7075dbd1ef191f0120514a"
},
"requestID": "41c4b4f7-8bce-4773-bf0e-5ae3bb5cbce2",
"eventID": "c1ad79e3-0d3f-402a-b119-d5c31d7c6a6c",
"readOnly": false,
"resources": [
{
"ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
"accountId": "111122223333"
}
],
"eventType": "AwsApiCall",
"recipientAccountId": "111122223333"
},
{
"eventVersion": "1.02",
"userIdentity": {
"type": "IAMUser",
"principalId": "EX_PRINCIPAL_ID",
"arn": "arn:aws:iam::111122223333:user/Alice",
"accountId": "111122223333",
"accessKeyId": "EXAMPLE_KEY_ID",
"userName": "Alice"
},
"eventTime": "2014-11-05T21:35:32Z",
"eventSource": "kms.amazonaws.com",
"eventName": "GenerateDataKeyWithoutPlaintext",
"awsRegion": "us-east-1",
"sourceIPAddress": "192.0.2.0",
"userAgent": "AWS Internal",
"requestParameters": {
"encryptionContext": {
"aws:ebs:id": "vol-f67bafb2"
},
"numberOfBytes": 64,
"keyId": "alias/aws/ebs"
},
"responseElements": null,
"requestID": "create-111122223333-758247346-1415223332",
"eventID": "ac3cab10-ce93-4953-9d62-0b6e5cba651d",
"readOnly": true,
"resources": [
{
"ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
"accountId": "111122223333"
}
],
"eventType": "AwsApiCall",
"recipientAccountId": "111122223333"
},
{
"eventVersion": "1.02",
"userIdentity": {
"type": "AssumedRole",
"principalId": "111122223333:aws:ec2-infrastructure:i-81e2f56c",
"arn": "arn:aws:sts::111122223333:assumed-role/aws:ec2-infrastructure/i-81e2f56c",
"accountId": "111122223333",
"accessKeyId": "",
"sessionContext": {
"attributes": {
"mfaAuthenticated": "false",
"creationDate": "2014-11-05T21:35:38Z"
},
"sessionIssuer": {
"type": "Role",
"principalId": "111122223333:aws:ec2-infrastructure",
"arn": "arn:aws:iam::111122223333:role/aws:ec2-infrastructure",
"accountId": "111122223333",
"userName": "aws:ec2-infrastructure"
}
}
},
"eventTime": "2014-11-05T21:35:47Z",
"eventSource": "kms.amazonaws.com",
"eventName": "Decrypt",
"awsRegion": "us-east-1",
"sourceIPAddress": "192.0.2.0",
"requestParameters": {
"encryptionContext": {
"aws:ebs:id": "vol-f67bafb2"
}
},
"responseElements": null,
"requestID": "b4b27883-6533-11e4-b4d9-751f1761e9e5",
"eventID": "edb65380-0a3e-4123-bbc8-3d1b7cff49b0",
"readOnly": true,
"resources": [
{
"ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
"accountId": "111122223333"
}
],
"eventType": "AwsApiCall",
"recipientAccountId": "111122223333"
}
]
}