[#EVP_PKEY_CTX_new_from_name]
= EVP_PKEY_CTX_new_from_name
:mrdocs:

Allocate a key context for an algorithm fetched by name from providers.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:EVP_PKEY_CTX.adoc[EVP_PKEY_CTX]*
EVP_PKEY_CTX_new_from_name(
    xref:OSSL_LIB_CTX.adoc[OSSL_LIB_CTX]* libctx,
    char const* name,
    char const* propquery);
----

== Return Value

New EVP_PKEY_CTX, or NULL on error; free with EVP_PKEY_CTX_free().

== Parameters

[cols="1,4"]
|===
| Name| Description
| *libctx*
| Library context for the fetch, or NULL for the default.
| *name*
| Algorithm name (for example "RSA" or "EC").
| *propquery*
| Property query string, or NULL.
|===


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