[#OSSL_CMP_get1_rootCaKeyUpdate]
= OSSL_CMP_get1_rootCaKeyUpdate
:mrdocs:

Request a root CA key update via genm/genp and verify the response.

== Synopsis

Declared in `<openssl/cmp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OSSL_CMP_get1_rootCaKeyUpdate(
    xref:OSSL_CMP_CTX.adoc[OSSL_CMP_CTX]* ctx,
    xref:X509.adoc[X509] const* oldWithOld,
    xref:X509.adoc[X509]** newWithNew,
    xref:X509.adoc[X509]** newWithOld,
    xref:X509.adoc[X509]** oldWithNew);
----

== Return Value

1 on success, 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| CMP context referencing the CMP server.
| *oldWithOld*
| Current trusted root CA certificate, or NULL.
| *newWithNew*
| Receives the new root CA certificate; caller must free.
| *newWithOld*
| Receives the newWithOld transition certificate if non‐NULL; caller must free.
| *oldWithNew*
| Receives the oldWithNew transition certificate if non‐NULL; caller must free.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#