1*b077aed3SPierre Pronchery=pod 2*b077aed3SPierre Pronchery 3*b077aed3SPierre Pronchery=head1 NAME 4*b077aed3SPierre Pronchery 5*b077aed3SPierre ProncheryEVP_KDF-X942-CONCAT - The X942 Concat EVP_KDF implementation 6*b077aed3SPierre Pronchery 7*b077aed3SPierre Pronchery=head1 DESCRIPTION 8*b077aed3SPierre Pronchery 9*b077aed3SPierre ProncheryThe EVP_KDF-X942-CONCAT algorithm is identical to EVP_KDF-X963. It is 10*b077aed3SPierre Proncheryused for key agreement to derive a key using input such as a shared secret key 11*b077aed3SPierre Proncheryand shared info. 12*b077aed3SPierre Pronchery 13*b077aed3SPierre Pronchery=head2 Identity 14*b077aed3SPierre Pronchery 15*b077aed3SPierre Pronchery"X942KDF_CONCAT" is the name for this implementation; it 16*b077aed3SPierre Proncherycan be used with the EVP_KDF_fetch() function. 17*b077aed3SPierre Pronchery 18*b077aed3SPierre ProncheryThis is an alias for "X963KDF". 19*b077aed3SPierre Pronchery 20*b077aed3SPierre ProncherySee L<EVP_KDF-X963(7)> for a list of supported parameters and examples. 21*b077aed3SPierre Pronchery 22*b077aed3SPierre Pronchery=head1 HISTORY 23*b077aed3SPierre Pronchery 24*b077aed3SPierre ProncheryThis functionality was added in OpenSSL 3.0. 25*b077aed3SPierre Pronchery 26*b077aed3SPierre Pronchery=head1 COPYRIGHT 27*b077aed3SPierre Pronchery 28*b077aed3SPierre ProncheryCopyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved. 29*b077aed3SPierre Pronchery 30*b077aed3SPierre ProncheryLicensed under the Apache License 2.0 (the "License"). You may not use 31*b077aed3SPierre Proncherythis file except in compliance with the License. You can obtain a copy 32*b077aed3SPierre Proncheryin the file LICENSE in the source distribution or at 33*b077aed3SPierre ProncheryL<https://www.openssl.org/source/license.html>. 34*b077aed3SPierre Pronchery 35*b077aed3SPierre Pronchery=cut 36