Missing config for "Signature AuthnRequest"
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here the doc that need an integration Link[https://docs.gitlab.com/ee/integration/saml.html]
Here the example for Signature AuthRequest
```
{
name: 'saml',
args: {
assertion_consumer_service_url: 'https://mywebsite/users/auth/saml/callback',
assertion_consumer_service_binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
idp_cert_fingerprint: '77:EE:EE:AA:67:FA:78:4C:E2:ED:E8:57:AC:EE:AC:AB:AA:FF:FD:FD',
idp_sso_target_url: 'https://idp.url/auth/SSOPOST/metaAlias/ent/providerIDP',
idp_sso_target_binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
idp_slo_target_url: 'https://idp.url/auth/IDPSloPOST/metaAlias/ent/providerIDP',
idp_slo_target_binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
sso_binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
protocol_binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
issuer: 'sp_gitlab',
name_identifier_format: 'urn:oasis:names:tc:SAML:2.0:nameid-format:persistent',
##### Begin ------- Signature AuthnRequest ######
certificate: "-----BEGIN CERTIFICATE-----
MIIDzjCCArYCCQCxUOzAVm5w3DANBgkqhkiG9w0BAQUFADCBqDELMAkGA1UEBhMC
....
v84ULsyAgv8sVJ4XerZ9wr7B
-----END CERTIFICATE-----",
private_key: "-----BEGIN RSA PRIVATE KEY-----
MIIEpQIBAAKCAQEAxcTsJ0sBMAH9NwEvDT5qcGBA6JiChtM90I9di7YC98lO5qFM
....
lfIj9QAaFdL9lPskg6zX6HEooOEoLib8fm9IZCIChjhsdjoj/6QXP6k=
-----END RSA PRIVATE KEY-----",
security: {
authn_requests_signed: true,
embed_sign: true,
digest_method: "XMLSecurity::Document::SHA1",
signature_method: "http://www.w3.org/2000/09/xmldsig#rsa-sha1"
}
##### End ------- Signature AuthnRequest ######
},
label: 'SAML Auth'
}
```
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issue