2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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
11 * AES low level APIs are deprecated for public use, but still ok for internal
12 * use where we're using them to implement the higher level EVP interface, as is
15 #include "internal/deprecated.h"
17 /* Dispatch functions for AES_CBC_HMAC_SHA ciphers */
19 /* Only for SSL3_VERSION and TLS1_VERSION */
20 #include <openssl/ssl.h>
21 #include <openssl/proverr.h>
22 #include "cipher_aes_cbc_hmac_sha.h"
23 #include "prov/implementations.h"
24 #include "prov/providercommon.h"
26 #ifndef AES_CBC_HMAC_SHA_CAPABLE
27 # define IMPLEMENT_CIPHER(nm, sub, kbits, blkbits, ivbits, flags) \
28 const OSSL_DISPATCH ossl_##nm##kbits##sub##_functions[] = { \
33 # define AES_CBC_HMAC_SHA_FLAGS (PROV_CIPHER_FLAG_AEAD \
34 | PROV_CIPHER_FLAG_TLS1_MULTIBLOCK)
36 static OSSL_FUNC_cipher_freectx_fn aes_cbc_hmac_sha1_freectx;
37 static OSSL_FUNC_cipher_freectx_fn aes_cbc_hmac_sha256_freectx;
38 static OSSL_FUNC_cipher_get_ctx_params_fn aes_get_ctx_params;
39 static OSSL_FUNC_cipher_gettable_ctx_params_fn aes_gettable_ctx_params;
40 static OSSL_FUNC_cipher_set_ctx_params_fn aes_set_ctx_params;
41 static OSSL_FUNC_cipher_settable_ctx_params_fn aes_settable_ctx_params;
42 # define aes_gettable_params ossl_cipher_generic_gettable_params
43 # define aes_einit ossl_cipher_generic_einit
44 # define aes_dinit ossl_cipher_generic_dinit
45 # define aes_update ossl_cipher_generic_stream_update
46 # define aes_final ossl_cipher_generic_stream_final
47 # define aes_cipher ossl_cipher_generic_cipher
49 static const OSSL_PARAM cipher_aes_known_settable_ctx_params[] = {
50 OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_MAC_KEY, NULL, 0),
51 OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD, NULL, 0),
52 # if !defined(OPENSSL_NO_MULTIBLOCK)
53 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_SEND_FRAGMENT, NULL),
54 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_AAD, NULL),
55 OSSL_PARAM_uint(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_INTERLEAVE, NULL),
56 OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_ENC, NULL, 0),
57 OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_ENC_IN, NULL, 0),
58 # endif /* !defined(OPENSSL_NO_MULTIBLOCK) */
59 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
62 const OSSL_PARAM *aes_settable_ctx_params(ossl_unused void *provctx)
64 return cipher_aes_known_settable_ctx_params;
67 static int aes_set_ctx_params(void *vctx, const OSSL_PARAM params[])
69 PROV_AES_HMAC_SHA_CTX *ctx = (PROV_AES_HMAC_SHA_CTX *)vctx;
70 PROV_CIPHER_HW_AES_HMAC_SHA *hw =
71 (PROV_CIPHER_HW_AES_HMAC_SHA *)ctx->hw;
74 # if !defined(OPENSSL_NO_MULTIBLOCK)
75 EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM mb_param;
78 p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_MAC_KEY);
80 if (p->data_type != OSSL_PARAM_OCTET_STRING) {
81 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
84 hw->init_mac_key(ctx, p->data, p->data_size);
87 # if !defined(OPENSSL_NO_MULTIBLOCK)
88 p = OSSL_PARAM_locate_const(params,
89 OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_SEND_FRAGMENT);
91 && !OSSL_PARAM_get_size_t(p, &ctx->multiblock_max_send_fragment)) {
92 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
96 * The inputs to tls1_multiblock_aad are:
99 * mb_param->interleave
100 * The outputs of tls1_multiblock_aad are written to:
101 * ctx->multiblock_interleave
102 * ctx->multiblock_aad_packlen
104 p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_AAD);
106 const OSSL_PARAM *p1 = OSSL_PARAM_locate_const(params,
107 OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_INTERLEAVE);
108 if (p->data_type != OSSL_PARAM_OCTET_STRING
110 || !OSSL_PARAM_get_uint(p1, &mb_param.interleave)) {
111 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
114 mb_param.inp = p->data;
115 mb_param.len = p->data_size;
116 if (hw->tls1_multiblock_aad(vctx, &mb_param) <= 0)
121 * The inputs to tls1_multiblock_encrypt are:
124 * mb_param->interleave
126 * The outputs of tls1_multiblock_encrypt are:
127 * ctx->multiblock_encrypt_len
129 p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_ENC);
131 const OSSL_PARAM *p1 = OSSL_PARAM_locate_const(params,
132 OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_INTERLEAVE);
133 const OSSL_PARAM *pin = OSSL_PARAM_locate_const(params,
134 OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_ENC_IN);
136 if (p->data_type != OSSL_PARAM_OCTET_STRING
138 || pin->data_type != OSSL_PARAM_OCTET_STRING
140 || !OSSL_PARAM_get_uint(p1, &mb_param.interleave)) {
141 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
144 mb_param.out = p->data;
145 mb_param.inp = pin->data;
146 mb_param.len = pin->data_size;
147 if (hw->tls1_multiblock_encrypt(vctx, &mb_param) <= 0)
150 # endif /* !defined(OPENSSL_NO_MULTIBLOCK) */
152 p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD);
154 if (p->data_type != OSSL_PARAM_OCTET_STRING) {
155 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
158 if (hw->set_tls1_aad(ctx, p->data, p->data_size) <= 0)
162 p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_KEYLEN);
166 if (!OSSL_PARAM_get_size_t(p, &keylen)) {
167 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
170 if (ctx->base.keylen != keylen) {
171 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
176 p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_TLS_VERSION);
178 if (!OSSL_PARAM_get_uint(p, &ctx->base.tlsversion)) {
179 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
182 if (ctx->base.tlsversion == SSL3_VERSION
183 || ctx->base.tlsversion == TLS1_VERSION) {
184 if (!ossl_assert(ctx->base.removetlsfixed >= AES_BLOCK_SIZE)) {
185 ERR_raise(ERR_LIB_PROV, ERR_R_INTERNAL_ERROR);
189 * There is no explicit IV with these TLS versions, so don't attempt
192 ctx->base.removetlsfixed -= AES_BLOCK_SIZE;
198 static int aes_get_ctx_params(void *vctx, OSSL_PARAM params[])
200 PROV_AES_HMAC_SHA_CTX *ctx = (PROV_AES_HMAC_SHA_CTX *)vctx;
203 # if !defined(OPENSSL_NO_MULTIBLOCK)
204 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_BUFSIZE);
206 PROV_CIPHER_HW_AES_HMAC_SHA *hw =
207 (PROV_CIPHER_HW_AES_HMAC_SHA *)ctx->hw;
208 size_t len = hw->tls1_multiblock_max_bufsize(ctx);
210 if (!OSSL_PARAM_set_size_t(p, len)) {
211 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
216 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_INTERLEAVE);
217 if (p != NULL && !OSSL_PARAM_set_uint(p, ctx->multiblock_interleave)) {
218 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
222 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_AAD_PACKLEN);
223 if (p != NULL && !OSSL_PARAM_set_uint(p, ctx->multiblock_aad_packlen)) {
224 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
228 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_ENC_LEN);
229 if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->multiblock_encrypt_len)) {
230 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
233 # endif /* !defined(OPENSSL_NO_MULTIBLOCK) */
235 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD);
236 if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->tls_aad_pad)) {
237 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
240 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_KEYLEN);
241 if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->base.keylen)) {
242 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
245 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_IVLEN);
246 if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->base.ivlen)) {
247 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
250 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_IV);
252 && !OSSL_PARAM_set_octet_string(p, ctx->base.oiv, ctx->base.ivlen)
253 && !OSSL_PARAM_set_octet_ptr(p, &ctx->base.oiv, ctx->base.ivlen)) {
254 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
257 p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_UPDATED_IV);
259 && !OSSL_PARAM_set_octet_string(p, ctx->base.iv, ctx->base.ivlen)
260 && !OSSL_PARAM_set_octet_ptr(p, &ctx->base.iv, ctx->base.ivlen)) {
261 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
267 static const OSSL_PARAM cipher_aes_known_gettable_ctx_params[] = {
268 # if !defined(OPENSSL_NO_MULTIBLOCK)
269 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_BUFSIZE, NULL),
270 OSSL_PARAM_uint(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_INTERLEAVE, NULL),
271 OSSL_PARAM_uint(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_AAD_PACKLEN, NULL),
272 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_ENC_LEN, NULL),
273 # endif /* !defined(OPENSSL_NO_MULTIBLOCK) */
274 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD, NULL),
275 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
276 OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
277 OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_IV, NULL, 0),
278 OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_UPDATED_IV, NULL, 0),
281 const OSSL_PARAM *aes_gettable_ctx_params(ossl_unused void *provctx)
283 return cipher_aes_known_gettable_ctx_params;
286 static void base_init(void *provctx, PROV_AES_HMAC_SHA_CTX *ctx,
287 const PROV_CIPHER_HW_AES_HMAC_SHA *meths,
288 size_t kbits, size_t blkbits, size_t ivbits,
291 ossl_cipher_generic_initkey(&ctx->base, kbits, blkbits, ivbits,
292 EVP_CIPH_CBC_MODE, flags,
293 &meths->base, provctx);
294 ctx->hw = (PROV_CIPHER_HW_AES_HMAC_SHA *)ctx->base.hw;
297 static void *aes_cbc_hmac_sha1_newctx(void *provctx, size_t kbits,
298 size_t blkbits, size_t ivbits,
301 PROV_AES_HMAC_SHA1_CTX *ctx;
303 if (!ossl_prov_is_running())
306 ctx = OPENSSL_zalloc(sizeof(*ctx));
308 base_init(provctx, &ctx->base_ctx,
309 ossl_prov_cipher_hw_aes_cbc_hmac_sha1(), kbits, blkbits,
314 static void aes_cbc_hmac_sha1_freectx(void *vctx)
316 PROV_AES_HMAC_SHA1_CTX *ctx = (PROV_AES_HMAC_SHA1_CTX *)vctx;
319 ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
320 OPENSSL_clear_free(ctx, sizeof(*ctx));
324 static void *aes_cbc_hmac_sha256_newctx(void *provctx, size_t kbits,
325 size_t blkbits, size_t ivbits,
328 PROV_AES_HMAC_SHA256_CTX *ctx;
330 if (!ossl_prov_is_running())
333 ctx = OPENSSL_zalloc(sizeof(*ctx));
335 base_init(provctx, &ctx->base_ctx,
336 ossl_prov_cipher_hw_aes_cbc_hmac_sha256(), kbits, blkbits,
341 static void aes_cbc_hmac_sha256_freectx(void *vctx)
343 PROV_AES_HMAC_SHA256_CTX *ctx = (PROV_AES_HMAC_SHA256_CTX *)vctx;
346 ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
347 OPENSSL_clear_free(ctx, sizeof(*ctx));
351 # define IMPLEMENT_CIPHER(nm, sub, kbits, blkbits, ivbits, flags) \
352 static OSSL_FUNC_cipher_newctx_fn nm##_##kbits##_##sub##_newctx; \
353 static void *nm##_##kbits##_##sub##_newctx(void *provctx) \
355 return nm##_##sub##_newctx(provctx, kbits, blkbits, ivbits, flags); \
357 static OSSL_FUNC_cipher_get_params_fn nm##_##kbits##_##sub##_get_params; \
358 static int nm##_##kbits##_##sub##_get_params(OSSL_PARAM params[]) \
360 return ossl_cipher_generic_get_params(params, EVP_CIPH_CBC_MODE, \
361 flags, kbits, blkbits, ivbits); \
363 const OSSL_DISPATCH ossl_##nm##kbits##sub##_functions[] = { \
364 { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))nm##_##kbits##_##sub##_newctx },\
365 { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))nm##_##sub##_freectx }, \
366 { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))nm##_einit }, \
367 { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))nm##_dinit }, \
368 { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))nm##_update }, \
369 { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))nm##_final }, \
370 { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))nm##_cipher }, \
371 { OSSL_FUNC_CIPHER_GET_PARAMS, \
372 (void (*)(void))nm##_##kbits##_##sub##_get_params }, \
373 { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
374 (void (*)(void))nm##_gettable_params }, \
375 { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
376 (void (*)(void))nm##_get_ctx_params }, \
377 { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
378 (void (*)(void))nm##_gettable_ctx_params }, \
379 { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
380 (void (*)(void))nm##_set_ctx_params }, \
381 { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
382 (void (*)(void))nm##_settable_ctx_params }, \
386 #endif /* AES_CBC_HMAC_SHA_CAPABLE */
388 /* ossl_aes128cbc_hmac_sha1_functions */
389 IMPLEMENT_CIPHER(aes, cbc_hmac_sha1, 128, 128, 128, AES_CBC_HMAC_SHA_FLAGS)
390 /* ossl_aes256cbc_hmac_sha1_functions */
391 IMPLEMENT_CIPHER(aes, cbc_hmac_sha1, 256, 128, 128, AES_CBC_HMAC_SHA_FLAGS)
392 /* ossl_aes128cbc_hmac_sha256_functions */
393 IMPLEMENT_CIPHER(aes, cbc_hmac_sha256, 128, 128, 128, AES_CBC_HMAC_SHA_FLAGS)
394 /* ossl_aes256cbc_hmac_sha256_functions */
395 IMPLEMENT_CIPHER(aes, cbc_hmac_sha256, 256, 128, 128, AES_CBC_HMAC_SHA_FLAGS)