[#ossl_param_st-key]
= xref:ossl_param_st.adoc[ossl_param_st]::key
:relfileprefix: ../
:mrdocs:

Parameter name string (for example an OSSL_PKEY_PARAM_* key).

== Synopsis

Declared in `<openssl/core.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const* key;
----


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