[#EVP_PKEY_keygen]
= EVP_PKEY_keygen
:mrdocs:

Generate a key pair into *`ppkey` using an initialised keygen context.

== Synopsis

Declared in `<openssl/evp.h>`

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

== Return Value

1 on success, or a non‐positive value on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Context prepared with EVP_PKEY_keygen_init() (and any controls).
| *ppkey*
| Address of an EVP_PKEY pointer that receives the new key (allocated if NULL).
|===


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