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2f17cc49 P |
1 | /* |
2 | * Copyright 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 <openssl/evp.h> | |
11 | #include <openssl/core_names.h> | |
12 | #include "internal/provider_util.h" | |
13 | ||
14 | void ossl_prov_cipher_reset(PROV_CIPHER *pc) | |
15 | { | |
16 | EVP_CIPHER_free(pc->alloc_cipher); | |
17 | pc->alloc_cipher = NULL; | |
18 | pc->cipher = NULL; | |
19 | pc->engine = NULL; | |
20 | } | |
21 | ||
22 | int ossl_prov_cipher_copy(PROV_CIPHER *dst, const PROV_CIPHER *src) | |
23 | { | |
24 | if (src->alloc_cipher != NULL && !EVP_CIPHER_up_ref(src->alloc_cipher)) | |
25 | return 0; | |
26 | dst->engine = src->engine; | |
27 | dst->cipher = src->cipher; | |
28 | dst->alloc_cipher = src->alloc_cipher; | |
29 | return 1; | |
30 | } | |
31 | ||
32 | static int load_common(const OSSL_PARAM params[], const char **propquery, | |
33 | ENGINE **engine) | |
34 | { | |
35 | const OSSL_PARAM *p; | |
36 | ||
37 | *propquery = NULL; | |
38 | p = OSSL_PARAM_locate_const(params, OSSL_ALG_PARAM_PROPERTIES); | |
39 | if (p != NULL) { | |
40 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
41 | return 0; | |
42 | *propquery = p->data; | |
43 | } | |
44 | ||
45 | *engine = NULL; | |
46 | /* TODO legacy stuff, to be removed */ | |
252a3665 MC |
47 | /* Inside the FIPS module, we don't support legacy ciphers */ |
48 | #if !defined(FIPS_MODE) && !defined(OPENSSL_NO_ENGINE) | |
2f17cc49 P |
49 | p = OSSL_PARAM_locate_const(params, OSSL_ALG_PARAM_ENGINE); |
50 | if (p != NULL) { | |
51 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
52 | return 0; | |
53 | ENGINE_finish(*engine); | |
54 | *engine = ENGINE_by_id(p->data); | |
55 | if (*engine == NULL) | |
56 | return 0; | |
57 | } | |
58 | #endif | |
59 | return 1; | |
60 | } | |
61 | ||
62 | int ossl_prov_cipher_load_from_params(PROV_CIPHER *pc, | |
63 | const OSSL_PARAM params[], | |
64 | OPENSSL_CTX *ctx) | |
65 | { | |
66 | const OSSL_PARAM *p; | |
67 | const char *propquery; | |
68 | ||
69 | if (!load_common(params, &propquery, &pc->engine)) | |
70 | return 0; | |
71 | ||
72 | p = OSSL_PARAM_locate_const(params, OSSL_ALG_PARAM_CIPHER); | |
73 | if (p == NULL) | |
74 | return 1; | |
75 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
76 | return 0; | |
77 | ||
78 | EVP_CIPHER_free(pc->alloc_cipher); | |
79 | pc->cipher = pc->alloc_cipher = EVP_CIPHER_fetch(ctx, p->data, propquery); | |
80 | /* TODO legacy stuff, to be removed */ | |
81 | #ifndef FIPS_MODE /* Inside the FIPS module, we don't support legacy ciphers */ | |
82 | if (pc->cipher == NULL) | |
83 | pc->cipher = EVP_get_cipherbyname(p->data); | |
84 | #endif | |
85 | return pc->cipher != NULL; | |
86 | } | |
87 | ||
88 | const EVP_CIPHER *ossl_prov_cipher_cipher(const PROV_CIPHER *pc) | |
89 | { | |
90 | return pc->cipher; | |
91 | } | |
92 | ||
93 | ENGINE *ossl_prov_cipher_engine(const PROV_CIPHER *pc) | |
94 | { | |
95 | return pc->engine; | |
96 | } | |
97 | ||
98 | void ossl_prov_digest_reset(PROV_DIGEST *pd) | |
99 | { | |
100 | EVP_MD_free(pd->alloc_md); | |
101 | pd->alloc_md = NULL; | |
102 | pd->md = NULL; | |
103 | pd->engine = NULL; | |
104 | } | |
105 | ||
106 | int ossl_prov_digest_copy(PROV_DIGEST *dst, const PROV_DIGEST *src) | |
107 | { | |
108 | if (src->alloc_md != NULL && !EVP_MD_up_ref(src->alloc_md)) | |
109 | return 0; | |
110 | dst->engine = src->engine; | |
111 | dst->md = src->md; | |
112 | dst->alloc_md = src->alloc_md; | |
113 | return 1; | |
114 | } | |
115 | ||
116 | int ossl_prov_digest_load_from_params(PROV_DIGEST *pd, | |
117 | const OSSL_PARAM params[], | |
118 | OPENSSL_CTX *ctx) | |
119 | { | |
120 | const OSSL_PARAM *p; | |
121 | const char *propquery; | |
122 | ||
123 | if (!load_common(params, &propquery, &pd->engine)) | |
124 | return 0; | |
125 | ||
126 | ||
127 | p = OSSL_PARAM_locate_const(params, OSSL_ALG_PARAM_DIGEST); | |
128 | if (p == NULL) | |
129 | return 1; | |
130 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
131 | return 0; | |
132 | ||
133 | EVP_MD_free(pd->alloc_md); | |
134 | pd->md = pd->alloc_md = EVP_MD_fetch(ctx, p->data, propquery); | |
135 | /* TODO legacy stuff, to be removed */ | |
136 | #ifndef FIPS_MODE /* Inside the FIPS module, we don't support legacy digests */ | |
137 | if (pd->md == NULL) | |
138 | pd->md = EVP_get_digestbyname(p->data); | |
139 | #endif | |
140 | return pd->md != NULL; | |
141 | } | |
142 | ||
143 | const EVP_MD *ossl_prov_digest_md(const PROV_DIGEST *pd) | |
144 | { | |
145 | return pd->md; | |
146 | } | |
147 | ||
148 | ENGINE *ossl_prov_digest_engine(const PROV_DIGEST *pd) | |
149 | { | |
150 | return pd->engine; | |
151 | } | |
152 |