...
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|---|---|---|---|---|---|---|
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<samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
ID="_zQIibz9FKixdlgX8E7bHqE29wfatcgbsPdVn0NN"
Version="2.0"
IssueInstant="2016-03-10T15:09:21Z"
Destination="https://sa-gw.stepupsurfconext.example.org/gssp/2ndnl/second-factor-only/single-sign-on"
AssertionConsumerServiceURL="https://application-gateway.some-organisation.example.org/consume-assertion"
ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST">
<saml:Issuer>https://application-gateway.some-organisation.example.org/metadata</saml:Issuer>
<saml:Subject>
<saml:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified">urn:collab:person:some-organisation.example.org:m1234567890</saml:NameID>
</saml:Subject>
<samlp:RequestedAuthnContext>
<saml:AuthnContextClassRef>http://surfconext.nl/assurance/sfo-level2</saml:AuthnContextClassRef>
</samlp:RequestedAuthnContext>
</samlp:AuthnRequest> |
Note that the signature is not visible in the XML of the above request AuthnRequest: it will be encoded in the HTTP GET parameters according to the specification of the HTTP-Redirect binding.
...
urn:collab:person:
= fixed prefix.{{urn:mace:terena.org:attribute-def:schacHomeOrganization}}= value of schacHomeOrganisation attribute of the user; same for all users and will be something like "institution.nl".{{urn:mace:dir:attribute-def:uid}}= value ofuidattribute of the user. Replace any each "@" (at) character in the uid with an "_" (underscore) character.
For the value of last two items: ask the administrator of the IdP .
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The result of a successful authentication is a SAML Response. It Note that it does not contain an AttributeStatement.
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<samlp:Response xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
ID="_ECAokbn0lm7lfVT7THQUl+dSbMrpeyAgiTv0+q16"
Version="2.0"
IssueInstant="2016-03-10T15:09:25Z"
Destination="https://application-gateway.some-organisation.example.org/consume-assertion"
InResponseTo="_zQIibz9FKixdlgX8E7bHqE29wfatcgbsPdVn0NN"
>
<saml:Issuer>https://sa-gw.stepupsurfconext.example.orgnl/second-factoryfactor-only/metadata</saml:Issuer>
<samlp:Status>
<samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success" />
</samlp:Status>
<saml:Assertion xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
ID="_zQIibz9FKixdlgX8E7bHqE29wfatcgbsPdVn0NN"
Version="2.0"
IssueInstant="2016-03-10T15:09:25Z"
>
<saml:Issuer>https://gw.stepup.example.org/second-factory-only/metadata</saml:Issuer>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
<ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
<ds:Reference URI="#_1ROuxGVzJi5bbre6W4woNza82aK41HKjp6aKtw9r">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
<ds:DigestValue>YR5JFfJc1JZIKm7Ao3kXtDupEfeMrhKpD9T1lF1z0Lg=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>...</ds:SignatureValue>
<ds:KeyInfo>
<ds:X509Data>
<ds:X509Certificate>...</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</ds:Signature>
<saml:Subject>
<saml:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified">urn:collab:person:some-organisation.example.org:m1234567890</saml:NameID>
<saml:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer">
<saml:SubjectConfirmationData NotOnOrAfter="2016-03-10T15:14:25Z"
Recipient="https://application-gateway.some-organisation.example.org/consume-assertion"
InResponseTo="_zQIibz9FKixdlgX8E7bHqE29wfatcgbsPdVn0NN"/>
</saml:SubjectConfirmation>
</saml:Subject>
<saml:Conditions NotBefore="2016-03-10T15:09:25Z"
/NotOnOrAfter="2016-03-10T15:14:25Z">
</saml<saml:SubjectConfirmation>AudienceRestriction>
</saml:Subject>
<saml:Conditions NotBefore="2016-03-10T15:09:25Z":Audience>https://application-gateway.some-organisation.example.org/metadata</saml:Audience>
</saml:AudienceRestriction>
</saml:Conditions>
<saml:AuthnStatement NotOnOrAfterAuthnInstant="2016-03-10T15:1409:25Z">
<saml:AuthnContext>
>
<saml:AudienceRestriction>
<saml:Audience>https://application-gateway.some-organisation.example.org/metadata</saml:Audience>
</saml:AudienceRestriction>
</saml:Conditions>
<saml:AuthnStatement AuthnInstant="2016-03-10T15:09:25Z">
<saml:AuthnContext>
<saml: <saml:AuthnContextClassRef>http://stepup.example.org/verified-second-factor/level2</saml:AuthnContextClassRef>
</saml:AuthnContext>
</saml:AuthnStatement>
</saml:Assertion>
</samlp:Response> |
...
When a user cannot be authenticated, the SURFsecureID gateway sends a SAML Response SAMLResponse to the SP with a non success status:
urn:oasis:names:tc:SAML:2.0:status:Responderwith subcodeurn:oasis:names:tc:SAML:2.0:status:AuthnFailed =
Authentication not successful
Authentication was not successful. This specifically happens when the user cancels the authentication.urn:oasis:names:tc:SAML:2.0:status:Responderwith subcodeurn:oasis:names:tc:SAML:2.0:status:NoAuthnContext =
The user could not be authenticated at the requested level. The user does not have an activated (vetted) token at the requests level.- Other situations can also lead to an error response:
- No AuthnContextClassRef in the AuthnRequest
- No Subject in the AuthnRequest
- Not authorised to authenticate the requested user
Level: authentication strength
...
An example code for using SFO with SimpleSAMLphp can be found at: https://github.com/SURFnet/Stepup-SFO-demo