[#CMS_decrypt_set1_password]
= CMS_decrypt_set1_password
:mrdocs:

Decrypt CMS PasswordRecipientInfo key material and store it for a later CMS_decrypt().

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS_decrypt_set1_password(
    xref:CMS_ContentInfo.adoc[CMS_ContentInfo]* cms,
    unsigned char* pass,
    ssize_t passlen);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cms*
| Enveloped ContentInfo containing a password recipient.
| *pass*
| Password bytes used to derive the key‐encryption key.
| *passlen*
| Length of `pass` in octets, or a negative value if `pass` is a NUL‐terminated string.
|===


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