providers/common/ciphers/cipher_tdes_hw.c

   1 /*
   2  * Copyright 1995-2019 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 #include "cipher_locl.h"
  11 #include "internal/ciphers/cipher_tdes.h"
  12
  13 #define ks1 tks.ks[0]
  14 #define ks2 tks.ks[1]
  15 #define ks3 tks.ks[2]
  16
  17 int cipher_hw_tdes_ede3_initkey(PROV_CIPHER_CTX *ctx, const unsigned char *key,
  18                                 size_t keylen)
  19 {
  20     PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
  21     DES_cblock *deskey = (DES_cblock *)key;
  22
  23     tctx->tstream.cbc = NULL;
  24 # if defined(SPARC_DES_CAPABLE)
  25     if (SPARC_DES_CAPABLE) {
  26         if (ctx->mode == EVP_CIPH_CBC_MODE) {
  27             des_t4_key_expand(&deskey[0], &tctx->ks1);
  28             des_t4_key_expand(&deskey[1], &tctx->ks2);
  29             des_t4_key_expand(&deskey[2], &tctx->ks3);
  30             tctx->tstream.cbc = ctx->enc ? des_t4_ede3_cbc_encrypt :
  31                                            des_t4_ede3_cbc_decrypt;
  32             return 1;
  33         }
  34     }
  35 # endif
  36     DES_set_key_unchecked(&deskey[0], &tctx->ks1);
  37     DES_set_key_unchecked(&deskey[1], &tctx->ks2);
  38     DES_set_key_unchecked(&deskey[2], &tctx->ks3);
  39     return 1;
  40 }
  41
  42 int cipher_hw_tdes_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
  43                        const unsigned char *in, size_t inl)
  44 {
  45     PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
  46
  47     if (tctx->tstream.cbc != NULL) {
  48         (*tctx->tstream.cbc) (in, out, inl, tctx->tks.ks, ctx->iv);
  49         return 1;
  50     }
  51
  52     while (inl >= MAXCHUNK) {
  53         DES_ede3_cbc_encrypt(in, out, (long)MAXCHUNK, &tctx->ks1, &tctx->ks2,
  54                              &tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
  55         inl -= MAXCHUNK;
  56         in += MAXCHUNK;
  57         out += MAXCHUNK;
  58     }
  59     if (inl > 0)
  60         DES_ede3_cbc_encrypt(in, out, (long)inl, &tctx->ks1, &tctx->ks2,
  61                              &tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
  62     return 1;
  63 }
  64
  65 int cipher_hw_tdes_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
  66                        const unsigned char *in, size_t len)
  67 {
  68     size_t i;
  69     PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
  70
  71     if (len < DES_BLOCK_SIZE)
  72         return 1;
  73
  74     for (i = 0, len -= DES_BLOCK_SIZE; i <= len; i += DES_BLOCK_SIZE) {
  75         DES_ecb3_encrypt((const_DES_cblock *)(in + i), (DES_cblock *)(out + i),
  76                          &tctx->ks1, &tctx->ks2, &tctx->ks3, ctx->enc);
  77     }
  78     return 1;
  79 }
  80
  81 PROV_CIPHER_HW_tdes_mode(ede3, ecb)
  82 PROV_CIPHER_HW_tdes_mode(ede3, cbc)