Actions, resources, and condition keys for Amazon S3 Express - Service Authorization Reference

Actions, resources, and condition keys for Amazon S3 Express

Amazon S3 Express (service prefix: s3express) provides the following service-specific resources, actions, and condition context keys for use in IAM permission policies.

References:

Actions defined by Amazon S3 Express

You can specify the following actions in the Action element of an IAM policy statement. Use policies to grant permissions to perform an operation in AWS. When you use an action in a policy, you usually allow or deny access to the API operation or CLI command with the same name. However, in some cases, a single action controls access to more than one operation. Alternatively, some operations require several different actions.

The Resource types column of the Actions table indicates whether each action supports resource-level permissions. If there is no value for this column, you must specify all resources ("*") to which the policy applies in the Resource element of your policy statement. If the column includes a resource type, then you can specify an ARN of that type in a statement with that action. If the action has one or more required resources, the caller must have permission to use the action with those resources. Required resources are indicated in the table with an asterisk (*). If you limit resource access with the Resource element in an IAM policy, you must include an ARN or pattern for each required resource type. Some actions support multiple resource types. If the resource type is optional (not indicated as required), then you can choose to use one of the optional resource types.

The Condition keys column of the Actions table includes keys that you can specify in a policy statement's Condition element. For more information on the condition keys that are associated with resources for the service, see the Condition keys column of the Resource types table.

Note

Resource condition keys are listed in the Resource types table. You can find a link to the resource type that applies to an action in the Resource types (*required) column of the Actions table. The resource type in the Resource types table includes the Condition keys column, which are the resource condition keys that apply to an action in the Actions table.

For details about the columns in the following table, see Actions table.

Actions Description Access level Resource types (*required) Condition keys Dependent actions
CreateBucket Grants permission to create a new bucket Write

bucket*

s3express:authType

s3express:LocationName

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

s3express:x-amz-server-side-encryption

s3express:x-amz-server-side-encryption-aws-kms-key-id

CreateSession Grants permission to Create Session token which is used for object APIs such as PutObject, GetObject, ect Read

bucket*

s3express:authType

s3express:ResourceAccount

s3express:SessionMode

s3express:signatureAge

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

DeleteBucket Grants permission to delete the bucket named in the URI Write

bucket*

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

DeleteBucketPolicy Grants permission to delete the policy on a specified bucket Permissions management

bucket*

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

GetBucketPolicy Grants permission to return the policy of the specified bucket Read

bucket*

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

GetEncryptionConfiguration Grants permission to return the default encryption configuration for a directory bucket Read

bucket*

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

ListAllMyDirectoryBuckets Grants permission to list all directory buckets owned by the authenticated sender of the request List

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

PutBucketPolicy Grants permission to add or replace a bucket policy on a bucket Permissions management

bucket*

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

PutEncryptionConfiguration Grants permission to set the encryption configuration for a directory bucket Write

bucket*

s3express:authType

s3express:ResourceAccount

s3express:signatureversion

s3express:TlsVersion

s3express:x-amz-content-sha256

Resource types defined by Amazon S3 Express

The following resource types are defined by this service and can be used in the Resource element of IAM permission policy statements. Each action in the Actions table identifies the resource types that can be specified with that action. A resource type can also define which condition keys you can include in a policy. These keys are displayed in the last column of the Resource types table. For details about the columns in the following table, see Resource types table.

Resource types ARN Condition keys
bucket arn:${Partition}:s3express:${Region}:${Account}:bucket/${BucketName}

Condition keys for Amazon S3 Express

Amazon S3 Express defines the following condition keys that can be used in the Condition element of an IAM policy. You can use these keys to further refine the conditions under which the policy statement applies. For details about the columns in the following table, see Condition keys table.

To view the global condition keys that are available to all services, see Available global condition keys.

Condition keys Description Type
s3express:LocationName Filters access by a specific Availability Zone ID String
s3express:ResourceAccount Filters access by the resource owner AWS account ID String
s3express:SessionMode Filters access by the permission requested by CreateSession API, such as ReadOnly and ReadWrite String
s3express:TlsVersion Filters access by the TLS version used by the client Numeric
s3express:authType Filters access by authentication method String
s3express:signatureAge Filters access by the age in milliseconds of the request signature Numeric
s3express:signatureversion Filters access by the AWS Signature Version used on the request String
s3express:x-amz-content-sha256 Filters access by unsigned content in your bucket String
s3express:x-amz-server-side-encryption Filters access by server-side encryption String
s3express:x-amz-server-side-encryption-aws-kms-key-id Filters access by AWS KMS customer managed key for server-side encryption ARN