1/* 2 * Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10/*- 11 * Fujitsu SPARC64 X support for AES GCM. 12 * This file is included by cipher_aes_gcm_hw.c 13 */ 14 15static int t4_aes_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key, 16 size_t keylen) 17{ 18 ctr128_f ctr; 19 PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx; 20 AES_KEY *ks = &actx->ks.ks; 21 22 23 switch (keylen) { 24 case 16: 25 ctr = (ctr128_f)aes128_t4_ctr32_encrypt; 26 break; 27 case 24: 28 ctr = (ctr128_f)aes192_t4_ctr32_encrypt; 29 break; 30 case 32: 31 ctr = (ctr128_f)aes256_t4_ctr32_encrypt; 32 break; 33 default: 34 return 0; 35 } 36 37 GCM_HW_SET_KEY_CTR_FN(ks, aes_t4_set_encrypt_key, aes_t4_encrypt, ctr); 38 return 1; 39} 40 41static const PROV_GCM_HW t4_aes_gcm = { 42 t4_aes_gcm_initkey, 43 ossl_gcm_setiv, 44 ossl_gcm_aad_update, 45 generic_aes_gcm_cipher_update, 46 ossl_gcm_cipher_final, 47 ossl_gcm_one_shot 48}; 49const PROV_GCM_HW *ossl_prov_aes_hw_gcm(size_t keybits) 50{ 51 return SPARC_AES_CAPABLE ? &t4_aes_gcm : &aes_gcm; 52} 53