[#CMS_SignerInfo_get0_algs]
= CMS&lowbar;SignerInfo&lowbar;get0&lowbar;algs
:mrdocs:

Retrieve algorithm and key pointers from a CMS SignerInfo&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
CMS&lowbar;SignerInfo&lowbar;get0&lowbar;algs(
    xref:CMS_SignerInfo.adoc[CMS&lowbar;SignerInfo]* si,
    xref:EVP_PKEY.adoc[EVP&lowbar;PKEY]** pk,
    xref:X509.adoc[X509]** signer,
    xref:X509_ALGOR.adoc[X509&lowbar;ALGOR]** pdig,
    xref:X509_ALGOR.adoc[X509&lowbar;ALGOR]** psig);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *si*
| SignerInfo to query&period;
| *pk*
| Receives the signer&apos;s public key if available, or NULL if not requested&period;
| *signer*
| Receives the signer certificate if available, or NULL if not requested&period;
| *pdig*
| Receives the digest algorithm, or NULL if not requested&period;
| *psig*
| Receives the signature algorithm, or NULL if not requested&period;
|===


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