[#PKCS7_decrypt]
= PKCS7_decrypt
:mrdocs:

Decrypt a PKCS#7 envelopedData (or signed‐and‐enveloped) structure for a recipient.

== Synopsis

Declared in `<openssl/pkcs7.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
PKCS7_decrypt(
    xref:PKCS7.adoc[PKCS7]* p7,
    xref:EVP_PKEY.adoc[EVP_PKEY]* pkey,
    xref:X509.adoc[X509]* cert,
    xref:BIO.adoc[BIO]* data,
    int flags);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *p7*
| Enveloped PKCS#7 object to decrypt.
| *pkey*
| Recipient private key matching a RecipientInfo in `p7.`
| *cert*
| Recipient certificate used to select the matching RecipientInfo, or NULL.
| *data*
| BIO that receives the decrypted content.
| *flags*
| PKCS7_* decryption flags (for example PKCS7_TEXT).
|===


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