providers/common/ciphers/cipher_aes_hw_t4.inc

   1 /*
   2  * Copyright 2001-2019 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
  15 static 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
  21     dat->ks = &adat->ks.ks;
  22
  23     bits = keylen * 8;
  24     if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE)
  25         && !dat->enc) {
  26         ret = 0;
  27         aes_t4_set_decrypt_key(key, bits, dat->ks);
  28         dat->block = (block128_f) aes_t4_decrypt;
  29         switch (bits) {
  30         case 128:
  31             dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
  32                 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
  33             break;
  34         case 192:
  35             dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
  36                 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
  37             break;
  38         case 256:
  39             dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
  40                 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
  41             break;
  42         default:
  43             ret = -1;
  44         }
  45     } else {
  46         ret = 0;
  47         aes_t4_set_encrypt_key(key, bits, dat->ks);
  48         dat->block = (block128_f)aes_t4_encrypt;
  49         switch (bits) {
  50         case 128:
  51             if (dat->mode == EVP_CIPH_CBC_MODE)
  52                 dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt;
  53             else if (dat->mode == EVP_CIPH_CTR_MODE)
  54                 dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
  55             else
  56                 dat->stream.cbc = NULL;
  57             break;
  58         case 192:
  59             if (dat->mode == EVP_CIPH_CBC_MODE)
  60                 dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt;
  61             else if (dat->mode == EVP_CIPH_CTR_MODE)
  62                 dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
  63             else
  64                 dat->stream.cbc = NULL;
  65             break;
  66         case 256:
  67             if (dat->mode == EVP_CIPH_CBC_MODE)
  68                 dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt;
  69             else if (dat->mode == EVP_CIPH_CTR_MODE)
  70                 dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
  71             else
  72                 dat->stream.cbc = NULL;
  73             break;
  74         default:
  75             ret = -1;
  76         }
  77     }
  78
  79     if (ret < 0) {
  80         ERR_raise(ERR_LIB_PROV, PROV_R_AES_KEY_SETUP_FAILED);
  81         return 0;
  82     }
  83
  84     return 1;
  85 }
  86
  87 #define PROV_CIPHER_HW_declare(mode)                                           \
  88 static const PROV_CIPHER_HW aes_t4_##mode = {                                  \
  89     cipher_hw_aes_t4_initkey,                                                  \
  90     cipher_hw_generic_##mode                                                   \
  91 };
  92 #define PROV_CIPHER_HW_select(mode)                                            \
  93     if (SPARC_AES_CAPABLE)                                                     \
  94         return aes_t4_##mode;