=head1 NAME
-EVP_PKEY_CTX_new, EVP_PKEY_CTX_new_id, EVP_PKEY_CTX_dup, EVP_PKEY_CTX_free - public key algorithm context functions.
+EVP_PKEY_CTX_new, EVP_PKEY_CTX_new_id, EVP_PKEY_CTX_dup, EVP_PKEY_CTX_free - public key algorithm context functions
=head1 SYNOPSIS
The EVP_PKEY_CTX_new_id() function allocates public key algorithm context
using the algorithm specified by B<id> and ENGINE B<e>. It is normally used
when no B<EVP_PKEY> structure is associated with the operations, for example
-during parameter generation of key genration for some algorithms.
+during parameter generation of key generation for some algorithms.
EVP_PKEY_CTX_dup() duplicates the context B<ctx>.
EVP_PKEY_CTX_free() frees up the context B<ctx>.
+If B<ctx> is NULL, nothing is done.
=head1 NOTES
=head1 SEE ALSO
-L<EVP_PKEY_new(3)|EVP_PKEY_new(3)>
+L<EVP_PKEY_new(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