[#EVP_CIPHER_CTX_set_params]
= EVP_CIPHER_CTX_set_params
:mrdocs:

Set provider parameters on an initialised cipher context.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_CIPHER_CTX_set_params(
    xref:EVP_CIPHER_CTX.adoc[EVP_CIPHER_CTX]* ctx,
    xref:OSSL_PARAM.adoc[OSSL_PARAM] const params[]);
----

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Cipher context.
| *params*
| NULL‐terminated OSSL_PARAM array of values to apply.
|===


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