[#OBJ_find_sigid_algs]
= OBJ&lowbar;find&lowbar;sigid&lowbar;algs
:mrdocs:

Look up the digest and public&hyphen;key NIDs that compose a signature algorithm&period;

== Synopsis

Declared in `&lt;openssl&sol;objects&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OBJ&lowbar;find&lowbar;sigid&lowbar;algs(
    int signid,
    int* pdig&lowbar;nid,
    int* ppkey&lowbar;nid);
----

== Return Value

1 if `signid` is found, or 0 otherwise&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *signid*
| NID of the composite signature algorithm&period;
| *pdig&lowbar;nid*
| Optional out&hyphen;parameter for the digest algorithm NID, or NULL&period;
| *ppkey&lowbar;nid*
| Optional out&hyphen;parameter for the public&hyphen;key algorithm NID, or NULL&period;
|===


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