[#PEM_read_bio_Parameters]
= PEM&lowbar;read&lowbar;bio&lowbar;Parameters
:mrdocs:

Read algorithm parameters (e&period;g&period; DH&sol;DSA) from PEM into an EVP&lowbar;PKEY&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:EVP_PKEY.adoc[EVP&lowbar;PKEY]*
PEM&lowbar;read&lowbar;bio&lowbar;Parameters(
    xref:BIO.adoc[BIO]* bp,
    xref:EVP_PKEY.adoc[EVP&lowbar;PKEY]** x);
----

== Return Value

Parameter EVP&lowbar;PKEY on success, or NULL on failure&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bp*
| BIO to read from&period;
| *x*
| Optional address of an EVP&lowbar;PKEY pointer to reuse, or NULL&period;
|===


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