[#ENGINE]
= ENGINE
:mrdocs:

Opaque cryptographic ENGINE handle for legacy algorithm implementations (deprecated&semi; prefer providers)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef xref:engine_st.adoc[engine&lowbar;st] ENGINE;
----


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