Create a SAML identity provider in IAM - AWS Identity and Access Management
PrerequisitesCreate and manage an IAM SAML identity provider (console)Create and manage an IAM SAML Identity Provider (AWS CLI)Create and manage an IAM SAML identity provider (AWS API)Next steps

Create a SAML identity provider in IAM

An IAM SAML 2.0 identity provider is an entity in IAM that describes an external identity provider (IdP) service that supports the SAML 2.0 (Security Assertion Markup Language 2.0) standard. You use an IAM identity provider when you want to establish trust between a SAML-compatible IdP such as Shibboleth or Active Directory Federation Services and AWS, so that users in your organization can access AWS resources. IAM SAML identity providers are used as principals in an IAM trust policy.

For more information about this scenario, see SAML 2.0 federation.

You can create and manage an IAM identity provider in the AWS Management Console or with AWS CLI, Tools for Windows PowerShell, or AWS API calls.

After you create a SAML provider, you must create one or more IAM roles. A role is an identity in AWS that doesn't have its own credentials (as a user does). But in this context, a role is dynamically assigned to a federated user that is authenticated by your organization's IdP. The role permits your organization's IdP to request temporary security credentials for access to AWS. The policies assigned to the role determine what the federated users are allowed to do in AWS. To create a role for SAML federation, see Create a role for a third-party identity provider (federation).

Finally, after you create the role, you complete the SAML trust by configuring your IdP with information about AWS and the roles that you want your federated users to use. This is referred to as configuring relying party trust between your IdP and AWS. To configure relying party trust, see Configure your SAML 2.0 IdP with relying party trust and adding claims.

Prerequisites

Before you can create a SAML identity provider, you must have the following information from your IdP.

  • Get the SAML metadata document from your IdP. This document includes the issuer's name, expiration information, and keys that can be used to validate the SAML authentication response (assertions) that are received from the IdP. To generate the metadata document, use the identity management software provided by your external IdP.

    Important

    This metadata file includes the issuer name, expiration information, and keys that can be used to validate the SAML authentication response (assertions) received from the IdP. The metadata file must be encoded in UTF-8 format without a byte order mark (BOM). To remove the BOM, you can encode the file as UTF-8 using a text editing tool, such as Notepad++.

    The X.509 certificate included as part of the SAML metadata document must use a key size of at least 1024 bits. Also, the X.509 certificate must also be free of any repeated extensions. You can use extensions, but the extensions can only appear once in the certificate. If the X.509 certificate does not meet either condition, IdP creation fails and returns an "Unable to parse metadata" error.

    As defined by the SAML V2.0 Metadata Interoperability Profile Version 1.0, IAM does not evaluate or take action on the expiration of X.509 certificates in SAML metadata documents. If you are concerned about expired X.509 certificates, we recommend monitoring certificate expiration dates and rotating certificates according to your organization’s governance and security policies.

For instructions on how to configure many of the available IdPs to work with AWS, including how to generate the required SAML metadata document, see Integrate third-party SAML solution providers with AWS.

For help with SAML federation, see Troubleshooting SAML federation.

Create and manage an IAM SAML identity provider (console)

You can use the AWS Management Console to create, update, and delete IAM SAML identity providers. For help with SAML federation, see Troubleshooting SAML federation.

To create an IAM SAML identity provider (console)

  1. Sign in to the AWS Management Console and open the IAM console at https://console.aws.amazon.com/iam/.

  2. In the navigation pane, choose Identity providers and then choose Add provider.

  3. For Configure provider, choose SAML.

  4. Type a name for the identity provider.

  5. For Metadata document, choose Choose file, specify the SAML metadata document that you downloaded in Prerequisites.

  6. (Optional) For Add tags you can add key–value pairs to help you identify and organize your IdPs. You can also use tags to control access to AWS resources. To learn more about tagging SAML identity providers, see Tag IAM SAML identity providers.

    Choose Add tag. Enter values for each tag key-value pair.

  7. Verify the information that you have provided. When you are done, choose Add provider.

  8. Assign an IAM role to your identity provider. This role gives external user identities managed by your identity provider permissions to access AWS resources in your account. To learn more about creating roles for identity federation, see Create a role for a third-party identity provider (federation).

    Note

    SAML IDPs used in a role trust policy must be in the same account that the role is in.

To delete a SAML provider (console)

  1. Sign in to the AWS Management Console and open the IAM console at https://console.aws.amazon.com/iam/.

  2. In the navigation pane, choose Identity providers.

  3. Select the radio button next to the identity provider that you want to delete.

  4. Choose Delete. A new window opens.

  5. Confirm that you want to delete the provider by typing the word delete in the field. Then, choose Delete.

Create and manage an IAM SAML Identity Provider (AWS CLI)

You can use the AWS CLI to create, update, and delete SAML providers. For help with SAML federation, see Troubleshooting SAML federation.

To create an IAM identity provider and upload a metadata document (AWS CLI)
To update an IAM SAML identity provider (AWS CLI)
To tag an existing IAM identity provider (AWS CLI)
To list tags for existing IAM identity provider (AWS CLI)
To remove tags on an existing IAM identity provider (AWS CLI)
To delete an IAM SAML identity provider (AWS CLI)

  1. (Optional) To list information for all providers, such as the ARN, creation date, and expiration, run the following command:

  2. (Optional) To get information about a specific provider, such as the ARN, creation date, expiration date, encryption settings, and private key information, run the following command:

  3. To delete an IAM identity provider, run the following command:

Create and manage an IAM SAML identity provider (AWS API)

You can use the AWS API to create, update, and delete SAML providers. For help with SAML federation, see Troubleshooting SAML federation.

To create an IAM identity provider and upload a metadata document (AWS API)
To update an IAM SAML identity provider (AWS API)
To tag an existing IAM identity provider (AWS API)
To list tags for an existing IAM identity provider (AWS API)
To remove tags on an existing IAM identity provider (AWS API)
To delete an IAM identity provider (AWS API)

  1. (Optional) To list information for all IdPs, such as the ARN, creation date, and expiration, call the following operation:

  2. (Optional) To get information about a specific provider, such as the ARN, creation date, expiration date, encryption settings, and private key information, call the following operation:

  3. To delete an IdP, call the following operation:

Next steps

After you create a SAML identity provider, set up the relying party trust with your IdP. You can also use claims from your IdP's authentication response in policies to control access to a role.