[#DH_check_pub_key]
= DH_check_pub_key
:mrdocs:

Validate a Diffie‐Hellman public key and return a bitmask of problems (deprecated).

== Synopsis

Declared in `<openssl/dh.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
DH_check_pub_key(
    xref:DH.adoc[DH] const* dh,
    xref:BIGNUM.adoc[BIGNUM] const* pub_key,
    int* codes);
----

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

1 if the check routine ran successfully (inspect `codes),` or 0 on hard failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *dh*
| DH object providing the domain parameters used for the check.
| *pub_key*
| Public key value to validate against those parameters.
| *codes*
| Receives zero or a combination of DH_CHECK_PUBKEY_* reason bits.
|===


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