[#EVP_PKEY_pairwise_check]
= EVP_PKEY_pairwise_check
:mrdocs:

Validate that the public and private components of a key form a consistent pair.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_PKEY_pairwise_check(xref:EVP_PKEY_CTX.adoc[EVP_PKEY_CTX]* ctx);
----

== Return Value

1 if the key pair is consistent, 0 if not, or a negative value on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Context holding the key to check (typically created with EVP_PKEY_CTX_new).
|===


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