=head1 NAME
-EVP_PKEY_derive_init, EVP_PKEY_derive_set_peer, EVP_PKEY_derive - derive public key algorithm shared secret.
+EVP_PKEY_derive_init, EVP_PKEY_derive_set_peer, EVP_PKEY_derive - derive public key algorithm shared secret
=head1 SYNOPSIS
ctx = EVP_PKEY_CTX_new(pkey);
if (!ctx)
- /* Error occurred */
+ /* Error occurred */
if (EVP_PKEY_derive_init(ctx) <= 0)
- /* Error */
+ /* Error */
if (EVP_PKEY_derive_set_peer(ctx, peerkey) <= 0)
- /* Error */
+ /* Error */
/* Determine buffer length */
if (EVP_PKEY_derive(ctx, NULL, &skeylen) <= 0)
- /* Error */
+ /* Error */
skey = OPENSSL_malloc(skeylen);
if (!skey)
- /* malloc failure */
-
+ /* malloc failure */
+
if (EVP_PKEY_derive(ctx, skey, &skeylen) <= 0)
- /* Error */
+ /* Error */
/* Shared secret is skey bytes written to buffer skey */
=head1 SEE ALSO
-L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>,
-L<EVP_PKEY_encrypt(3)|EVP_PKEY_encrypt(3)>,
-L<EVP_PKEY_decrypt(3)|EVP_PKEY_decrypt(3)>,
-L<EVP_PKEY_sign(3)|EVP_PKEY_sign(3)>,
-L<EVP_PKEY_verify(3)|EVP_PKEY_verify(3)>,
-L<EVP_PKEY_verify_recover(3)|EVP_PKEY_verify_recover(3)>,
+L<EVP_PKEY_CTX_new(3)>,
+L<EVP_PKEY_encrypt(3)>,
+L<EVP_PKEY_decrypt(3)>,
+L<EVP_PKEY_sign(3)>,
+L<EVP_PKEY_verify(3)>,
+L<EVP_PKEY_verify_recover(3)>,
=head1 HISTORY
These functions were first added to OpenSSL 1.0.0.
+=head1 COPYRIGHT
+
+Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
=cut