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https://issues.apache.org/jira/browse/NIFI-5473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16568592#comment-16568592
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ASF GitHub Bot commented on NIFI-5473:
--------------------------------------
Github user alopresto commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2927#discussion_r207631101
--- Diff: nifi-docs/src/main/asciidoc/administration-guide.adoc ---
@@ -281,6 +281,272 @@ After running the client you will have the CA’s
certificate, a keystore, a tru
For a client certificate that can be easily imported into the browser,
specify: `-T PKCS12`
+==== Using An Existing Intermediate Certificate Authority (CA)
+
+In some enterprise scenarios, a security/IT team may provide a signing
certificate that has already been signed by the organization's certificate
authority (CA). This *intermediate CA* can be used to sign the *node*
(sometimes referred to as *leaf*) certificates that will be installed on each
NiFi node. In order to inject the existing signing certificate into the toolkit
process, follow these steps:
--- End diff --
Yes, if the *root CA* signs *old/current intermediate CA* and *new CA*, and
*root CA* is in the NiFi truststore, then certificates signed by both *old
intermediate CA* and *new CA* will be trusted. You can read more about CA
rollover in [IETF RFC 6489](https://tools.ietf.org/html/rfc6489).
Currently we do not and have no plans to insert the *root CA* certificate
into the truststore. This will require new feature work if it is desired.
> Add documentation for using intermediate CA with TLS toolkit
> ------------------------------------------------------------
>
> Key: NIFI-5473
> URL: https://issues.apache.org/jira/browse/NIFI-5473
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Documentation & Website, Security, Tools and Build
> Affects Versions: 1.7.1
> Reporter: Andy LoPresto
> Assignee: Andy LoPresto
> Priority: Major
> Labels: certificate, documentation, security, tls, tls-toolkit
> Fix For: 1.8.0
>
>
> With some manual work, the TLS toolkit can be used with a pre-existing
> certificate and private key that has been signed by an organization's
> certificate authority (CA) to sign toolkit-generated certificates. The Admin
> Guide should be improved to cover the necessary steps.
> When the separate "Security Guide" / "Toolkit Guide" is created, this content
> should be migrated there.
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