1/*
2 * Copyright 1995-2020 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 * DES low level APIs are deprecated for public use, but still ok for internal
12 * use.
13 */
14#include "internal/deprecated.h"
15
16#include "prov/ciphercommon.h"
17#include "cipher_tdes.h"
18
19#define ks1 tks.ks[0]
20#define ks2 tks.ks[1]
21#define ks3 tks.ks[2]
22
23int ossl_cipher_hw_tdes_ede3_initkey(PROV_CIPHER_CTX *ctx,
24                                     const unsigned char *key, size_t keylen)
25{
26    PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
27    DES_cblock *deskey = (DES_cblock *)key;
28
29    tctx->tstream.cbc = NULL;
30# if defined(SPARC_DES_CAPABLE)
31    if (SPARC_DES_CAPABLE) {
32        if (ctx->mode == EVP_CIPH_CBC_MODE) {
33            des_t4_key_expand(&deskey[0], &tctx->ks1);
34            des_t4_key_expand(&deskey[1], &tctx->ks2);
35            des_t4_key_expand(&deskey[2], &tctx->ks3);
36            tctx->tstream.cbc = ctx->enc ? des_t4_ede3_cbc_encrypt :
37                                           des_t4_ede3_cbc_decrypt;
38            return 1;
39        }
40    }
41# endif
42    DES_set_key_unchecked(&deskey[0], &tctx->ks1);
43    DES_set_key_unchecked(&deskey[1], &tctx->ks2);
44    DES_set_key_unchecked(&deskey[2], &tctx->ks3);
45    return 1;
46}
47
48void ossl_cipher_hw_tdes_copyctx(PROV_CIPHER_CTX *dst,
49                                 const PROV_CIPHER_CTX *src)
50{
51    PROV_TDES_CTX *sctx = (PROV_TDES_CTX *)src;
52    PROV_TDES_CTX *dctx = (PROV_TDES_CTX *)dst;
53
54    *dctx = *sctx;
55    dst->ks = &dctx->tks.ks;
56}
57
58int ossl_cipher_hw_tdes_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
59                            const unsigned char *in, size_t inl)
60{
61    PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
62
63    if (tctx->tstream.cbc != NULL) {
64        (*tctx->tstream.cbc) (in, out, inl, tctx->tks.ks, ctx->iv);
65        return 1;
66    }
67
68    while (inl >= MAXCHUNK) {
69        DES_ede3_cbc_encrypt(in, out, (long)MAXCHUNK, &tctx->ks1, &tctx->ks2,
70                             &tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
71        inl -= MAXCHUNK;
72        in += MAXCHUNK;
73        out += MAXCHUNK;
74    }
75    if (inl > 0)
76        DES_ede3_cbc_encrypt(in, out, (long)inl, &tctx->ks1, &tctx->ks2,
77                             &tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
78    return 1;
79}
80
81int ossl_cipher_hw_tdes_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
82                            const unsigned char *in, size_t len)
83{
84    size_t i;
85    PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
86
87    if (len < DES_BLOCK_SIZE)
88        return 1;
89
90    for (i = 0, len -= DES_BLOCK_SIZE; i <= len; i += DES_BLOCK_SIZE) {
91        DES_ecb3_encrypt((const_DES_cblock *)(in + i), (DES_cblock *)(out + i),
92                         &tctx->ks1, &tctx->ks2, &tctx->ks3, ctx->enc);
93    }
94    return 1;
95}
96
97PROV_CIPHER_HW_tdes_mode(ede3, ecb)
98PROV_CIPHER_HW_tdes_mode(ede3, cbc)
99