[#EVP_CIPHER_CTX_get_params]
= EVP_CIPHER_CTX_get_params
:mrdocs:

Retrieve algorithm parameters from a cipher context into `params.`

== Synopsis

Declared in `<openssl/evp.h>`

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

== Return Value

1 on success, or 0 on failure.

== Parameters

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


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