[#pkcs7_signer_info_st-auth_attr]
= xref:pkcs7_signer_info_st.adoc[pkcs7&lowbar;signer&lowbar;info&lowbar;st]::auth&lowbar;attr
:relfileprefix: ../
:mrdocs:

Authenticated (signed) attributes (&lsqb;0&rsqb;), or NULL if absent&period;

== Synopsis

Declared in `&lt;openssl&sol;pkcs7&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
stack&lowbar;st&lowbar;X509&lowbar;ATTRIBUTE* auth&lowbar;attr;
----


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