aes_gcm_sha256.c

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/*
 * Copyright (C) 2026 Michael Brown <mbrown@fensystems.co.uk>.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * You can also choose to distribute this program under the terms of
 * the Unmodified Binary Distribution Licence (as given in the file
 * COPYING.UBDL), provided that you have satisfied its requirements.
 */
 
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
FILE_SECBOOT ( PERMITTED );
 
#include <byteswap.h>
#include <ipxe/aes.h>
#include <ipxe/sha256.h>
#include <ipxe/tls.h>
 
/** TLS_AES_128_GCM_SHA256 cipher suite */
struct tls_cipher_suite tls_aes_128_gcm_sha256 __tls_cipher_suite ( 31 ) = {
        .code = htons ( TLS_AES_128_GCM_SHA256 ),
        .key_len = ( 128 / 8 ),
        .fixed_iv_len = 12,
        .record_iv_len = 0,
        .mac_len = 0,
        .verify_len = SHA256_DIGEST_SIZE,
        .flags = TLS_CIPHER_FL_SEQUENTIAL_IV,
        .exchange = &tls_null_exchange_algorithm,
        .pubkey = &pubkey_null,
        .cipher = &aes_gcm_algorithm,
        .digest = &digest_null,
        .handshake = &sha256_algorithm,
};