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We strongly recommend that service providers confirm all communications that take place with Auðkenni's system.

What do I need to confirm?

This can be roughly divided into two:

  • Verify that the responses are coming from our servers

  • Confirm signatures and certificates that are in the responses from Auðkenni’s system

To verify that responses are coming from our servers

To verify that the responses are coming from us, there is a so-called ".wellknown" endpoint that you can use to access information. Inside this endpoint, you can find the "jwks_uri" which is a path to the keys that can be used to verify that the response you receive is from our server.

An example of a .wellknown endpoint (replace "pfzww" with your Base URL):

https://pfzww.audkenni.is/sso/oauth2/realms/root/realms/audkenni/.well-known/openid-configuration

This endpoint will give you a response similar to this:

{"request_parameter_supported":true,"introspection_signing_alg_values_supported":["ES384","PS384","ES256","PS256","PS512","EdDSA","HS512","RS384","RS256","RS512","HS256","ES512","HS384"],"introspection_encryption_alg_values_supported":["RSA-OAEP-256","ECDH-ES+A256KW","A128KW","A192KW","RSA-OAEP","ECDH-ES+A192KW","A256KW","ECDH-ES","ECDH-ES+A128KW","dir"],"claims_parameter_supported":false,"introspection_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/introspect","check_session_iframe":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/connect/checkSession","scopes_supported":["signature","openid","profile"],"backchannel_logout_supported":true,"issuer":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni","id_token_encryption_enc_values_supported":["A256GCM","A128GCM","A256CBC-HS512","A128CBC-HS256","A192CBC-HS384","A192GCM"],"acr_values_supported":["nexus","sim-auth","app-auth","app-certificate-choice","nexus-sign","default","newcards-auth","app-sign","app-sign-with-certificate","apidefault","sim-sign","sim","sim-sign-pkcs1","oldcards-auth"],"userinfo_encryption_enc_values_supported":["A256GCM","A128CBC-HS256","A192CBC-HS384","A192GCM","A128GCM","A256CBC-HS512"],"authorization_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/authorize","request_object_encryption_enc_values_supported":["A128GCM","A256GCM","A192CBC-HS384","A256CBC-HS512","A128CBC-HS256","A192GCM"],"introspection_encryption_enc_values_supported":["A128CBC-HS256","A192CBC-HS384","A256GCM","A256CBC-HS512","A128GCM","A192GCM"],"rcs_request_encryption_alg_values_supported":["RSA1_5","dir","A192KW","RSA-OAEP-256","RSA-OAEP","A256KW","A128KW"],"claims_supported":["profile","name","locale"],"userinfo_signing_alg_values_supported":["ES256","HS512","ES512","HS384","RS256","ES384","HS256"],"rcs_request_signing_alg_values_supported":["RS512","PS384","PS256","HS256","HS384","ES512","RS256","RS384","HS512","ES384","ES256","PS512"],"token_endpoint_auth_methods_supported":["client_secret_post","private_key_jwt","self_signed_tls_client_auth","tls_client_auth","none","client_secret_basic"],"tls_client_certificate_bound_access_tokens":true,"backchannel_logout_session_supported":true,"token_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/access_token","response_types_supported":["code token id_token","code","code id_token","device_code","id_token","code token","none","token","token id_token"],"revocation_endpoint_auth_methods_supported":["client_secret_post","private_key_jwt","self_signed_tls_client_auth","tls_client_auth","none","client_secret_basic"],"request_uri_parameter_supported":true,"rcs_response_encryption_enc_values_supported":["A256CBC-HS512","A192CBC-HS384","A256GCM","A128GCM","A192GCM","A128CBC-HS256"],"userinfo_encryption_alg_values_supported":["RSA-OAEP","dir","A256KW","RSA-OAEP-256","A128KW","A192KW","RSA1_5"],"grant_types_supported":["refresh_token","authorization_code","urn:openid:params:grant-type:ciba","urn:ietf:params:oauth:grant-type:uma-ticket","idm_delegation","urn:ietf:params:oauth:grant-type:jwt-bearer"],"end_session_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/connect/endSession","rcs_request_encryption_enc_values_supported":["A256GCM","A256CBC-HS512","A192GCM","A128CBC-HS256","A128GCM","A192CBC-HS384"],"revocation_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/token/revoke","version":"3.0","rcs_response_encryption_alg_values_supported":["dir","A256KW","RSA-OAEP-256","A128KW","A192KW","RSA-OAEP","RSA1_5"],"userinfo_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/userinfo","token_endpoint_auth_signing_alg_values_supported":["RS512","RS384","RS256","ES512","HS256","HS384","PS512","ES384","PS256","ES256","HS512","PS384"],"require_request_uri_registration":true,"code_challenge_methods_supported":["plain","S256"],"id_token_encryption_alg_values_supported":["A128KW","A192KW","RSA-OAEP-256","RSA-OAEP","A256KW","RSA1_5","dir"],"jwks_uri":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/connect/jwk_uri","subject_types_supported":["public"],"id_token_signing_alg_values_supported":["RS384","RS256","PS512","ES512","HS384","HS256","PS256","ES256","PS384","ES384","RS512","HS512"],"registration_endpoint":"https://pfzww.audkenni.is:443/sso/oauth2/realms/root/realms/audkenni/register","request_object_signing_alg_values_supported":["RS256","ES512","PS512","RS384","HS512","ES256","ES384","HS256","HS384","PS384","RS512","PS256"],"request_object_encryption_alg_values_supported":["RSA-OAEP-256","A256KW","RSA-OAEP","RSA1_5","dir","A128KW","A192KW"],"rcs_response_signing_alg_values_supported":["PS256","ES384","RS512","ES256","HS512","PS384","RS256","ES512","PS512","HS384","HS256","RS384"]}

An example of a jwks_uri from the response (replace Base URL):

https://pfzww.audkenni.is/sso/oauth2/realms/root/realms/audkenni/connect/jwk_uri

This endpoint will give you a response similar to this:

{"keys":[{"kty":"RSA","kid":"K4h0TN2QBJYOVXAx3gYfn6nlajU=","use":"sig","x5t":"1hxzBQ9NTcb1VVUvWQAyenjNp9Y","x5c":["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"],"n":"iDd-Z55EvAwpSgd15AH3G-gvLXOgF-3NQKt3DxYLzWsNmwdMb9-qCwTeEpZQ32zPOjuG6hyhHYlEQC-HaOIirR9cNDHL2G4QJr3U6WKz-s3ne42vOlL0CfygwRaGTUtRm0uBvzHGtYOicH1fYyGhqxUI--SBlk8EhjawZNLvdFtno3ffh36ACIAv5hj45LUCzFNdnzZi5RQTniAPesdg9TrLXAuuqKUHPU06KyH38BbqHQAdbougRJoXhmUlShBBakoJH5-F4d1IM-HJu1U29fvYXmh8bLvuhWM0HfWSqZjFPoPvnYjEJSWcUMaxrVabnb5VZYdYkvuAgCt1Bi3IJw","e":"AQAB"},{"kty":"RSA","kid":"NefWEBJqU24exUROW9FARwKaztg=","use":"enc","x5t":"-7rTDZk0bOt3bIjnLfVDSOZjIzw","x5c":["MIIC5zCCAc+gAwIBAgIILsOY4ny5r+IwDQYJKoZIhvcNAQELBQAwIjERMA8GA1UEChMIQXVka2VubmkxDTALBgNVBAMTBHRlc3QwHhcNMjExMTE5MDg0MDI1WhcNMjQxMTA4MDg0MDI1WjAiMREwDwYDVQQKEwhBdWRrZW5uaTENMAsGA1UEAxMEdGVzdDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAOq/HN4UV98QMsRhodA0EX7ErX9lMyhznM83bxB8pTtiPUTCjw6omSp/RMBXhIc2gmGEqLyVstFqH+t7d6rByE7idRbQK4GX9R2xmpkxSv4tn19jFHszUWeGmjwoun6EQ/Rs03PJBEGhUhrRD3jrEgSM7dbORHmMTmhvXPNxIVaL+4Gk7AmXRF0vMq6M6g4ab1/sCiMIEH4Vhj2taYSW9jxWK0tgRYz+IOK0VbZ19kLjFVajIzqYxIY86KD/poXn/5BUHxP/xbrhTK+wIO9nuDCR6iCgqoQaA3P0qt/Okps5wlU0vsg/rW26CsbQEhbKnxOEu13wnmaoEqcsVa392CMCAwEAAaMhMB8wHQYDVR0OBBYEFP9TPPHzuc5aJoFE1yJOUwuoeECuMA0GCSqGSIb3DQEBCwUAA4IBAQDIEQD5ucXUIUInzkQPb80B6wKD3s7TWXeZ4IWQn8h5zw/r5pRUEZx+EwtiDGMoCQWsJ4YtQ9KH4MAd37ZqYIJDN+7ZkaLp5FSdcVtBXlqFg3EKDDkrV/hY5YA+JVxJ/KJ5WyRHCe72No1r3+lxFjQti5xf8Uo1WfZbt0nYkZZuO/11mfCiUvUY6bFs6oNVbL886lF9XvPoxkx+637V2GPjlGgmrwaaP19bYIjxMQMsUrZYqhFfIehOPPKkRRjYrcjdSfxDjCygoTUMTYrDb4lEzHimo8BiybEP4qJXhfjYdGTCfvwnnj0nCX8j8exASAJOZJLXNGiXWf15d71XPaHY"],"n":"6r8c3hRX3xAyxGGh0DQRfsStf2UzKHOczzdvEHylO2I9RMKPDqiZKn9EwFeEhzaCYYSovJWy0Wof63t3qsHITuJ1FtArgZf1HbGamTFK_i2fX2MUezNRZ4aaPCi6foRD9GzTc8kEQaFSGtEPeOsSBIzt1s5EeYxOaG9c83EhVov7gaTsCZdEXS8yrozqDhpvX-wKIwgQfhWGPa1phJb2PFYrS2BFjP4g4rRVtnX2QuMVVqMjOpjEhjzooP-mhef_kFQfE__FuuFMr7Ag72e4MJHqIKCqhBoDc_Sq386SmznCVTS-yD-tbboKxtASFsqfE4S7XfCeZqgSpyxVrf3YIw","e":"AQAB"},{"kty":"EC","kid":"T4HpP8SlCjLmEazbTNZ8j1/IIvk=","use":"sig","x5t":"BIiX_2w5Io0PAS3oDURSbDVK_f8","x5c":["MIIB6TCCAUmgAwIBAgIJAInrJIB0ytKkMAwGCCqGSM49BAMCBQAwIzERMA8GA1UEChMIQXVka2VubmkxDjAMBgNVBAMTBWVzNTEyMB4XDTIxMTExOTA4NDAyM1oXDTI0MTEwODA4NDAyM1owIzERMA8GA1UEChMIQXVka2VubmkxDjAMBgNVBAMTBWVzNTEyMIGbMBAGByqGSM49AgEGBSuBBAAjA4GGAAQAvrU4j5XbfkssKFLubKZxI6aCRf3pNH/Gb4W/tSpN7oytwtSpHZ5I3Ub4/+kaKxAnlBkeUWDRK4FRh7DmYaFzyE0BKS5L0G1LMsEJl1weaSf4Vbt0srWFM6sqeLOtJNNERadQ7hoZidEdw+Xq/LE8SBdnQhBuONP6N3eYN3J0LBL0Jp+jITAfMB0GA1UdDgQWBBQtDvXgmH0XW1SMMDb4FeqrArVfczAMBggqhkjOPQQDAgUAA4GLADCBhwJBcHbXNhzOM6JAARfYjJyexby4xbzDGry/nlLVprO3iTS0XPgER9dMg1uW3+mtMeaQDW3jKRIGSSEn3BFnkARBcGACQgD1CxPiS14Hq4hFn+vSGtOn0Jb6ErnAlp+wDWPl8kuYma45ehskPQ41c1bYm4LuJgfh6annnLCNEXQIIsuyT7LZVQ=="],"x":"AL61OI-V235LLChS7mymcSOmgkX96TR_xm-Fv7UqTe6MrcLUqR2eSN1G-P_pGisQJ5QZHlFg0SuBUYew5mGhc8hN","y":"ASkuS9BtSzLBCZdcHmkn-FW7dLK1hTOrKnizrSTTREWnUO4aGYnRHcPl6vyxPEgXZ0IQbjjT-jd3mDdydCwS9Caf","crv":"P-521"},{"kty":"EC","kid":"HmusVH9OnoQd7evfLa+CyKihFoo=","use":"sig","x5t":"-30DTwdwKD8qMHoEd7B38jj8OMI","x5c":["MIIBYTCCAQagAwIBAgIJAJ/bjPetKN9JMAwGCCqGSM49BAMCBQAwIzERMA8GA1UEChMIQXVka2VubmkxDjAMBgNVBAMTBWVzMjU2MB4XDTIxMTExOTA4NDAyMVoXDTI0MTEwODA4NDAyMVowIzERMA8GA1UEChMIQXVka2VubmkxDjAMBgNVBAMTBWVzMjU2MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEv0me73TLfyMb1NVvKsPUG3p36pc02R+5GNZPkMrgqWzJRLt27vDN/m1SUKMTmlbTjiliyNnsnbxfLLz4ffhnO6MhMB8wHQYDVR0OBBYEFD+Ibr3+RmDGlBW+KKHjW3Ijhd94MAwGCCqGSM49BAMCBQADRwAwRAIgKIBV7lRgm5tbwVf9zsoZnBBsSQ+DNims6FqyyDhRZioCIBBhDp5xVit8sqduqmZbYV/gLyPHKdR9f+M/a9i0KkmM"],"x":"v0me73TLfyMb1NVvKsPUG3p36pc02R-5GNZPkMrgqWw","y":"yUS7du7wzf5tUlCjE5pW044pYsjZ7J28Xyy8-H34Zzs","crv":"P-256"},{"kty":"EC","kid":"CbJYmrtlpLrMno/Z+n5b7FmBmKI=","use":"sig","x5t":"de4wUDcaPEccuV5iqJNPWd36p4M","x5c":["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"],"x":"Dx3joLZ-7jsGOEXxSa__8ILYL4hDigkUZXahlPaCgkD6QeRLdoCiN_y8_su8cdod","y":"EK0jeha6KCWTM8kQAR2MHy_n0eNP5tW36VBajvVw-xDvqAGKfO3PHovNLgScrOyj","crv":"P-384"}]}

This response hold keys you can use to verify the tokens from our system.

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