2019-08-27 07:42:46 -04:00
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--
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:api: delegate-pki
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:request: DelegatePkiAuthenticationRequest
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:response: DelegatePkiAuthenticationResponse
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--
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2019-09-11 16:19:13 -04:00
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[role="xpack"]
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2019-08-27 07:42:46 -04:00
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[id="{upid}-{api}"]
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=== Delegate PKI Authentication API
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This API is called by *smart* proxies to Elasticsearch, such as Kibana, that
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terminate the user's TLS session but that still wish to authenticate the user
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on the Elasticsearch side using a PKI realm, which normally requires users to
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authenticate over TLS directly to Elasticsearch. It implements the exchange of
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the client's {@code X509Certificate} chain from the TLS authentication into an
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Elasticsearch access token.
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IMPORTANT: The association between the subject public key in the target
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certificate and the corresponding private key is *not* validated. This is part
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of the TLS authentication process and it is delegated to the proxy calling this
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API. The proxy is *trusted* to have performed the TLS authentication, and this
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API translates that authentication into an Elasticsearch access token.
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[id="{upid}-{api}-request"]
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==== Delegate PKI Authentication Request
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The request contains the client's {@code X509Certificate} chain. The
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certificate chain is represented as a list where the first element is the
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target certificate containing the subject distinguished name that is requesting
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access. This may be followed by additional certificates, with each subsequent
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certificate being the one used to certify the previous one. The certificate
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chain is validated according to RFC 5280, by sequentially considering the trust
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configuration of every installed {@code PkiRealm} that has {@code
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PkiRealmSettings#DELEGATION_ENABLED_SETTING} set to {@code true} (default is
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{@code false}). A successfully trusted target certificate is also subject to
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the validation of the subject distinguished name according to that respective's
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realm {@code PkiRealmSettings#USERNAME_PATTERN_SETTING}.
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/SecurityDocumentationIT.java[delegate-pki-request]
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--------------------------------------------------
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include::../execution.asciidoc[]
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[id="{upid}-{api}-response"]
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==== Delegate PKI Authentication Response
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The returned +{response}+ contains the following properties:
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`accessToken`:: This is the newly created access token.
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It can be used to authenticate to the Elasticsearch cluster.
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`type`:: The type of the token, this is always `"Bearer"`.
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`expiresIn`:: The length of time (in seconds) until the token will expire.
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The token will be considered invalid after that time.
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/SecurityDocumentationIT.java[delegate-pki-response]
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--------------------------------------------------
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<1> The `accessToken` can be used to authentication to Elasticsearch.
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