[#SHA256_Final]
= SHA256_Final
:mrdocs:

Finalise a SHA‐256 digest and write the 32‐byte hash.

== Synopsis

Declared in `<openssl/sha.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
SHA256_Final(
    unsigned char* md,
    xref:SHA256_CTX.adoc[SHA256_CTX]* c);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Description

Deprecated; prefer EVP_DigestFinal_ex() / EVP_Q_digest().

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *md*
| Output buffer of at least SHA256_DIGEST_LENGTH bytes.
| *c*
| Context previously updated with SHA256_Update(); not reused afterward without re‐init.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#