1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/*
* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* Dispatch functions for RC4_HMAC_MD5 cipher */
/*
* MD5 and RC4 low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include "cipher_rc4_hmac_md5.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"
#include "prov/providercommonerr.h"
/* TODO(3.0) Figure out what flags are required */
#define RC4_HMAC_MD5_FLAGS (EVP_CIPH_STREAM_CIPHER | EVP_CIPH_VARIABLE_LENGTH \
| EVP_CIPH_FLAG_AEAD_CIPHER)
#define RC4_HMAC_MD5_KEY_BITS (16 * 8)
#define RC4_HMAC_MD5_BLOCK_BITS (1 * 8)
#define RC4_HMAC_MD5_IV_BITS 0
#define RC4_HMAC_MD5_MODE 0
#define GET_HW(ctx) ((PROV_CIPHER_HW_RC4_HMAC_MD5 *)ctx->base.hw)
static OSSL_FUNC_cipher_newctx_fn rc4_hmac_md5_newctx;
static OSSL_FUNC_cipher_freectx_fn rc4_hmac_md5_freectx;
static OSSL_FUNC_cipher_get_ctx_params_fn rc4_hmac_md5_get_ctx_params;
static OSSL_FUNC_cipher_gettable_ctx_params_fn rc4_hmac_md5_gettable_ctx_params;
static OSSL_FUNC_cipher_set_ctx_params_fn rc4_hmac_md5_set_ctx_params;
static OSSL_FUNC_cipher_settable_ctx_params_fn rc4_hmac_md5_settable_ctx_params;
static OSSL_FUNC_cipher_get_params_fn rc4_hmac_md5_get_params;
#define rc4_hmac_md5_gettable_params ossl_cipher_generic_gettable_params
#define rc4_hmac_md5_einit ossl_cipher_generic_einit
#define rc4_hmac_md5_dinit ossl_cipher_generic_dinit
#define rc4_hmac_md5_update ossl_cipher_generic_stream_update
#define rc4_hmac_md5_final ossl_cipher_generic_stream_final
#define rc4_hmac_md5_cipher ossl_cipher_generic_cipher
static void *rc4_hmac_md5_newctx(void *provctx)
{
PROV_RC4_HMAC_MD5_CTX *ctx;
if (!ossl_prov_is_running())
return NULL;
ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx != NULL)
ossl_cipher_generic_initkey(ctx, RC4_HMAC_MD5_KEY_BITS,
RC4_HMAC_MD5_BLOCK_BITS,
RC4_HMAC_MD5_IV_BITS,
RC4_HMAC_MD5_MODE, RC4_HMAC_MD5_FLAGS,
ossl_prov_cipher_hw_rc4_hmac_md5(
RC4_HMAC_MD5_KEY_BITS
), NULL);
return ctx;
}
static void rc4_hmac_md5_freectx(void *vctx)
{
PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)vctx;
ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
OPENSSL_clear_free(ctx, sizeof(*ctx));
}
static const OSSL_PARAM rc4_hmac_md5_known_gettable_ctx_params[] = {
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD, NULL),
OSSL_PARAM_END
};
const OSSL_PARAM *rc4_hmac_md5_gettable_ctx_params(ossl_unused void *provctx)
{
return rc4_hmac_md5_known_gettable_ctx_params;
}
static int rc4_hmac_md5_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)vctx;
OSSL_PARAM *p;
p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_KEYLEN);
if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->base.keylen)) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
return 0;
}
p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_IVLEN);
if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->base.ivlen)) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
return 0;
}
p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD);
if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->tls_aad_pad_sz)) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
return 0;
}
return 1;
}
static const OSSL_PARAM rc4_hmac_md5_known_settable_ctx_params[] = {
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD, NULL, 0),
OSSL_PARAM_END
};
const OSSL_PARAM *rc4_hmac_md5_settable_ctx_params(ossl_unused void *provctx)
{
return rc4_hmac_md5_known_settable_ctx_params;
}
static int rc4_hmac_md5_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)vctx;
const OSSL_PARAM *p;
size_t sz;
p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_KEYLEN);
if (p != NULL) {
if (!OSSL_PARAM_get_size_t(p, &sz)) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
return 0;
}
if (ctx->base.keylen != sz) {
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
return 0;
}
}
p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_IVLEN);
if (p != NULL) {
if (!OSSL_PARAM_get_size_t(p, &sz)) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
return 0;
}
if (ctx->base.ivlen != sz) {
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
return 0;
}
}
p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD);
if (p != NULL) {
if (p->data_type != OSSL_PARAM_OCTET_STRING) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
return 0;
}
sz = GET_HW(ctx)->tls_init(&ctx->base, p->data, p->data_size);
if (sz == 0) {
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DATA);
return 0;
}
ctx->tls_aad_pad_sz = sz;
}
p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD);
if (p != NULL) {
if (p->data_type != OSSL_PARAM_OCTET_STRING) {
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
return 0;
}
GET_HW(ctx)->init_mackey(&ctx->base, p->data, p->data_size);
}
return 1;
}
static int rc4_hmac_md5_get_params(OSSL_PARAM params[])
{
return ossl_cipher_generic_get_params(params, RC4_HMAC_MD5_MODE,
RC4_HMAC_MD5_FLAGS,
RC4_HMAC_MD5_KEY_BITS,
RC4_HMAC_MD5_BLOCK_BITS,
RC4_HMAC_MD5_IV_BITS);
}
const OSSL_DISPATCH ossl_rc4_hmac_ossl_md5_functions[] = {
{ OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))rc4_hmac_md5_newctx },
{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))rc4_hmac_md5_freectx },
{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))rc4_hmac_md5_einit },
{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))rc4_hmac_md5_dinit },
{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))rc4_hmac_md5_update },
{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))rc4_hmac_md5_final },
{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))rc4_hmac_md5_cipher },
{ OSSL_FUNC_CIPHER_GET_PARAMS, (void (*)(void))rc4_hmac_md5_get_params },
{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS,
(void (*)(void))rc4_hmac_md5_gettable_params },
{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS,
(void (*)(void))rc4_hmac_md5_get_ctx_params },
{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,
(void (*)(void))rc4_hmac_md5_gettable_ctx_params },
{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS,
(void (*)(void))rc4_hmac_md5_set_ctx_params },
{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,
(void (*)(void))rc4_hmac_md5_settable_ctx_params },
{ 0, NULL }
};
|