[#PKCS7_set_cipher]
= PKCS7_set_cipher
:mrdocs:

Set the content‐encryption cipher on an enveloped or encrypted PKCS#7 structure.

== Synopsis

Declared in `<openssl/pkcs7.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
PKCS7_set_cipher(
    xref:PKCS7.adoc[PKCS7]* p7,
    xref:EVP_CIPHER-07.adoc[EVP_CIPHER] const* cipher);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *p7*
| PKCS#7 EnvelopedData, SignedAndEnvelopedData, or EncryptedData object.
| *cipher*
| Symmetric cipher used to encrypt the content (must support ASN.1 parameters).
|===


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