Coverage Report

Created: 2025-06-13 06:36

/src/openssl/providers/implementations/ciphers/cipher_tdes_hw.c
Line
Count
Source (jump to first uncovered line)
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
0
#define ks1 tks.ks[0]
20
0
#define ks2 tks.ks[1]
21
0
#define ks3 tks.ks[2]
22
23
int ossl_cipher_hw_tdes_ede3_initkey(PROV_CIPHER_CTX *ctx,
24
                                     const unsigned char *key, size_t keylen)
25
0
{
26
0
    PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
27
0
    DES_cblock *deskey = (DES_cblock *)key;
28
29
0
    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
0
    DES_set_key_unchecked(&deskey[0], &tctx->ks1);
43
0
    DES_set_key_unchecked(&deskey[1], &tctx->ks2);
44
0
    DES_set_key_unchecked(&deskey[2], &tctx->ks3);
45
0
    return 1;
46
0
}
47
48
void ossl_cipher_hw_tdes_copyctx(PROV_CIPHER_CTX *dst,
49
                                 const PROV_CIPHER_CTX *src)
50
0
{
51
0
    PROV_TDES_CTX *sctx = (PROV_TDES_CTX *)src;
52
0
    PROV_TDES_CTX *dctx = (PROV_TDES_CTX *)dst;
53
54
0
    *dctx = *sctx;
55
0
    dst->ks = &dctx->tks.ks;
56
0
}
57
58
int ossl_cipher_hw_tdes_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
59
                            const unsigned char *in, size_t inl)
60
0
{
61
0
    PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
62
63
0
    if (tctx->tstream.cbc != NULL) {
64
0
        (*tctx->tstream.cbc) (in, out, inl, tctx->tks.ks, ctx->iv);
65
0
        return 1;
66
0
    }
67
68
0
    while (inl >= MAXCHUNK) {
69
0
        DES_ede3_cbc_encrypt(in, out, (long)MAXCHUNK, &tctx->ks1, &tctx->ks2,
70
0
                             &tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
71
0
        inl -= MAXCHUNK;
72
0
        in += MAXCHUNK;
73
0
        out += MAXCHUNK;
74
0
    }
75
0
    if (inl > 0)
76
0
        DES_ede3_cbc_encrypt(in, out, (long)inl, &tctx->ks1, &tctx->ks2,
77
0
                             &tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
78
0
    return 1;
79
0
}
80
81
int ossl_cipher_hw_tdes_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
82
                            const unsigned char *in, size_t len)
83
0
{
84
0
    size_t i;
85
0
    PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
86
87
0
    if (len < DES_BLOCK_SIZE)
88
0
        return 1;
89
90
0
    for (i = 0, len -= DES_BLOCK_SIZE; i <= len; i += DES_BLOCK_SIZE) {
91
0
        DES_ecb3_encrypt((const_DES_cblock *)(in + i), (DES_cblock *)(out + i),
92
0
                         &tctx->ks1, &tctx->ks2, &tctx->ks3, ctx->enc);
93
0
    }
94
0
    return 1;
95
0
}
96
97
PROV_CIPHER_HW_tdes_mode(ede3, ecb)
98
PROV_CIPHER_HW_tdes_mode(ede3, cbc)