73 lines
2.6 KiB
Markdown
73 lines
2.6 KiB
Markdown
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# Authentication through SAML 2.0
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## Overview
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The experimental SAML provider allows authentication through the SAML 2.0 HTTP POST binding.
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The connector uses the value of the `NameID` element as the user's unique identifier which dex assumes is both unique and never changes. Use the `nameIDPolicyFormat` to ensure this is set to a value which satisfies these requirements.
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## Caveats
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There are known issues with the XML signature validation for this connector. In addition work is still being done to ensure this connector implements best security practices for SAML 2.0.
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The connector doesn't support signed AuthnRequests or encrypted attributes.
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The connector doesn't support refresh tokens since the SAML 2.0 protocol doesn't provide a way to requery a provider without interaction.
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## Configuration
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```yaml
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connectors:
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- type: samlExperimental # will be changed to "saml" later without support for the "samlExperimental" value
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id: saml
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config:
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# Issuer used for validating the SAML response.
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issuer: https://saml.example.com
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# SSO URL used for POST value.
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ssoURL: https://saml.example.com/sso
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# CA to use when validating the SAML response.
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ca: /path/to/ca.pem
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# CA's can also be provided inline as a base64'd blob.
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#
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# catData: ( RAW base64'd PEM encoded CA )
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# To skip signature validation, uncomment the following field. This should
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# only be used during testing and may be removed in the future.
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#
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# insucreSkipSignatureValidation: true
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# Dex's callback URL. Must match the "Destination" attribute of all responses
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# exactly.
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redirectURI: https://dex.example.com/callback
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# Name of attributes in the returned assertions to map to ID token claims.
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usernameAttr: name
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emailAttr: email
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groupsAttr: groups # optional
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# By default, multiple groups are assumed to be represented as multiple
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# attributes with the same name.
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#
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# If "groupsDelim" is provided groups are assumed to be represented as a
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# single attribute and the delimiter is used to split the attribute's value
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# into multiple groups.
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#
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# groupsDelim: ", "
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# Requested format of the NameID. The NameID value is is mapped to the ID Token
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# 'sub' claim. This can be an abbreviated form of the full URI with just the last
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# component. For example, if this value is set to "emailAddress" the format will
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# resolve to:
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#
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# urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
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#
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# If no value is specified, this value defaults to:
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#
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# urn:oasis:names:tc:SAML:2.0:nameid-format:persistent
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#
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nameIDPolicyFormat: persistent
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```
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