[#PEM_read_bio_PKCS8_PRIV_KEY_INFO]
= PEM_read_bio_PKCS8_PRIV_KEY_INFO
:mrdocs:

Read a PKCS#8 PrivateKeyInfo from a PEM‐encoded BIO.

== Synopsis

Declared in `<openssl/pem.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:PKCS8_PRIV_KEY_INFO.adoc[PKCS8_PRIV_KEY_INFO]*
PEM_read_bio_PKCS8_PRIV_KEY_INFO(
    xref:BIO.adoc[BIO]* bp,
    xref:PKCS8_PRIV_KEY_INFO.adoc[PKCS8_PRIV_KEY_INFO]** x,
    xref:pem_password_cb.adoc[pem_password_cb]* cb,
    void* u);
----

== Return Value

PrivateKeyInfo on success, or NULL on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bp*
| BIO to read from.
| *x*
| Optional address of a PKCS8_PRIV_KEY_INFO pointer to reuse, or NULL.
| *cb*
| Password callback for encrypted PEM, or NULL.
| *u*
| Application data passed to `cb.`
|===


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