| =pod | 
 |  | 
 | =head1 NAME | 
 |  | 
 | EVP_KDF-X942-CONCAT - The X942 Concat EVP_KDF implementation | 
 |  | 
 | =head1 DESCRIPTION | 
 |  | 
 | The EVP_KDF-X942-CONCAT algorithm is identical to EVP_KDF-X963. It is | 
 | used for key agreement to derive a key using input such as a shared secret key | 
 | and shared info. | 
 |  | 
 | =head2 Identity | 
 |  | 
 | "X942KDF_CONCAT" is the name for this implementation; it | 
 | can be used with the EVP_KDF_fetch() function. | 
 |  | 
 | This is an alias for "X963KDF". | 
 |  | 
 | See L<EVP_KDF-X963(7)> for a list of supported parameters and examples. | 
 |  | 
 | =head1 HISTORY | 
 |  | 
 | This functionality was added to OpenSSL 3.0. | 
 |  | 
 | =head1 COPYRIGHT | 
 |  | 
 | Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved. | 
 |  | 
 | Licensed under the Apache License 2.0 (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 |