[#PKCS7_dataDecode]
= PKCS7_dataDecode
:mrdocs:

Create a BIO that decrypts/verifies PKCS#7 content for reading.

== Synopsis

Declared in `<openssl/pkcs7.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIO.adoc[BIO]*
PKCS7_dataDecode(
    xref:PKCS7.adoc[PKCS7]* p7,
    xref:EVP_PKEY.adoc[EVP_PKEY]* pkey,
    xref:BIO.adoc[BIO]* in_bio,
    xref:X509.adoc[X509]* pcert);
----

== Return Value

BIO that yields cleartext content, or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *p7*
| PKCS#7 EnvelopedData / SignedAndEnvelopedData (or similar) to decode.
| *pkey*
| Recipient private key for decryption, or NULL when not required.
| *in_bio*
| Optional BIO supplying encrypted content when not embedded in `p7,` or NULL.
| *pcert*
| Recipient certificate used to select the matching RecipientInfo, or NULL.
|===


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