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 * Sparc t4 support for AES modes ecb, cbc, ofb, cfb, ctr. 12 * This file is included by cipher_aes_hw.c 13 */ 14 15static int cipher_hw_aes_t4_initkey(PROV_CIPHER_CTX *dat, 16 const unsigned char *key, size_t keylen) 17{ 18 int ret, bits; 19 PROV_AES_CTX *adat = (PROV_AES_CTX *)dat; 20 AES_KEY *ks = &adat->ks.ks; 21 22 dat->ks = (const void *)ks; /* used by cipher_hw_generic_XXX */ 23 24 bits = keylen * 8; 25 if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE) 26 && !dat->enc) { 27 ret = 0; 28 aes_t4_set_decrypt_key(key, bits, ks); 29 dat->block = (block128_f)aes_t4_decrypt; 30 switch (bits) { 31 case 128: 32 dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ? 33 (cbc128_f)aes128_t4_cbc_decrypt : NULL; 34 break; 35 case 192: 36 dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ? 37 (cbc128_f)aes192_t4_cbc_decrypt : NULL; 38 break; 39 case 256: 40 dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ? 41 (cbc128_f)aes256_t4_cbc_decrypt : NULL; 42 break; 43 default: 44 ret = -1; 45 } 46 } else { 47 ret = 0; 48 aes_t4_set_encrypt_key(key, bits, ks); 49 dat->block = (block128_f)aes_t4_encrypt; 50 switch (bits) { 51 case 128: 52 if (dat->mode == EVP_CIPH_CBC_MODE) 53 dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt; 54 else if (dat->mode == EVP_CIPH_CTR_MODE) 55 dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt; 56 else 57 dat->stream.cbc = NULL; 58 break; 59 case 192: 60 if (dat->mode == EVP_CIPH_CBC_MODE) 61 dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt; 62 else if (dat->mode == EVP_CIPH_CTR_MODE) 63 dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt; 64 else 65 dat->stream.cbc = NULL; 66 break; 67 case 256: 68 if (dat->mode == EVP_CIPH_CBC_MODE) 69 dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt; 70 else if (dat->mode == EVP_CIPH_CTR_MODE) 71 dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt; 72 else 73 dat->stream.cbc = NULL; 74 break; 75 default: 76 ret = -1; 77 } 78 } 79 80 if (ret < 0) { 81 ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SETUP_FAILED); 82 return 0; 83 } 84 85 return 1; 86} 87 88#define PROV_CIPHER_HW_declare(mode) \ 89static const PROV_CIPHER_HW aes_t4_##mode = { \ 90 cipher_hw_aes_t4_initkey, \ 91 ossl_cipher_hw_generic_##mode, \ 92 cipher_hw_aes_copyctx \ 93}; 94#define PROV_CIPHER_HW_select(mode) \ 95 if (SPARC_AES_CAPABLE) \ 96 return &aes_t4_##mode; 97