[#EVP_MD_fetch]
= EVP_MD_fetch
:mrdocs:

Fetch a digest implementation from providers.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:EVP_MD.adoc[EVP_MD]*
EVP_MD_fetch(
    xref:OSSL_LIB_CTX.adoc[OSSL_LIB_CTX]* ctx,
    char const* algorithm,
    char const* properties);
----

== Return Value

Fetched EVP_MD (free with EVP_MD_free()), or NULL on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Library context to search, or NULL for the default.
| *algorithm*
| Digest algorithm name (for example "SHA256").
| *properties*
| Optional property query string, or NULL.
|===


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