Import mbedtls-3.6.0
Imports Mbed TLS 3.6.0 from https://github.com/Mbed-TLS/mbedtls.git
tags mbedtls-3.6.0, v3.6.0
Files that are not needed are removed:
cd lib/libmbedtls
rm -rf mbedtls
cp -R path/to/mbedtls-3.6.0/mbedtls .
cd mbedtls
rm CMakeLists.txt DartConfiguration.tcl Makefile
rm .gitignore .travis.yml .pylintrc .globalrc .mypy.ini BRANCHES.md
rm include/.gitignore include/CMakeLists.txt library/.gitignore
rm library/CMakeLists.txt library/Makefile
rm -r cmake
rm -rf .git .github doxygen configs programs scripts tests visualc
rm -rf 3rdparty ChangeLog.d docs pkgconfig .gitmodules .readthedocs.yaml
rm library/mps_*
cd ..
git add mbedtls
This time we leave library/psa_* present to enable TLS 1.3 features.
This is a complete overwrite of previous code so earlier changes in the
previous branch import/mbedtls-3.4.0 will be added on top of this commit.
Signed-off-by: Tom Van Eyck <tom.vaneyck@kuleuven.be>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/lib/libmbedtls/mbedtls/library/ctr_drbg.c b/lib/libmbedtls/mbedtls/library/ctr_drbg.c
index acc4208..66d9d28 100644
--- a/lib/libmbedtls/mbedtls/library/ctr_drbg.c
+++ b/lib/libmbedtls/mbedtls/library/ctr_drbg.c
@@ -2,30 +2,19 @@
* CTR_DRBG implementation based on AES-256 (NIST SP 800-90)
*
* Copyright The Mbed TLS Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*/
/*
* The NIST SP 800-90 DRBGs are described in the following publication.
*
- * http://csrc.nist.gov/publications/nistpubs/800-90/SP800-90revised_March2007.pdf
+ * https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-90r.pdf
*/
#include "common.h"
#if defined(MBEDTLS_CTR_DRBG_C)
+#include "ctr.h"
#include "mbedtls/ctr_drbg.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
@@ -36,15 +25,60 @@
#include <stdio.h>
#endif
+/* Using error translation functions from PSA to MbedTLS */
+#if !defined(MBEDTLS_AES_C)
+#include "psa_util_internal.h"
+#endif
+
#include "mbedtls/platform.h"
+#if !defined(MBEDTLS_AES_C)
+static psa_status_t ctr_drbg_setup_psa_context(mbedtls_ctr_drbg_psa_context *psa_ctx,
+ unsigned char *key, size_t key_len)
+{
+ psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
+ psa_status_t status;
+
+ psa_set_key_usage_flags(&key_attr, PSA_KEY_USAGE_ENCRYPT);
+ psa_set_key_algorithm(&key_attr, PSA_ALG_ECB_NO_PADDING);
+ psa_set_key_type(&key_attr, PSA_KEY_TYPE_AES);
+ status = psa_import_key(&key_attr, key, key_len, &psa_ctx->key_id);
+ if (status != PSA_SUCCESS) {
+ goto exit;
+ }
+
+ status = psa_cipher_encrypt_setup(&psa_ctx->operation, psa_ctx->key_id, PSA_ALG_ECB_NO_PADDING);
+ if (status != PSA_SUCCESS) {
+ goto exit;
+ }
+
+exit:
+ psa_reset_key_attributes(&key_attr);
+ return status;
+}
+
+static void ctr_drbg_destroy_psa_contex(mbedtls_ctr_drbg_psa_context *psa_ctx)
+{
+ psa_cipher_abort(&psa_ctx->operation);
+ psa_destroy_key(psa_ctx->key_id);
+
+ psa_ctx->operation = psa_cipher_operation_init();
+ psa_ctx->key_id = MBEDTLS_SVC_KEY_ID_INIT;
+}
+#endif
+
/*
* CTR_DRBG context initialization
*/
void mbedtls_ctr_drbg_init(mbedtls_ctr_drbg_context *ctx)
{
memset(ctx, 0, sizeof(mbedtls_ctr_drbg_context));
+#if defined(MBEDTLS_AES_C)
mbedtls_aes_init(&ctx->aes_ctx);
+#else
+ ctx->psa_ctx.key_id = MBEDTLS_SVC_KEY_ID_INIT;
+ ctx->psa_ctx.operation = psa_cipher_operation_init();
+#endif
/* Indicate that the entropy nonce length is not set explicitly.
* See mbedtls_ctr_drbg_set_nonce_len(). */
ctx->reseed_counter = -1;
@@ -68,7 +102,11 @@
mbedtls_mutex_free(&ctx->mutex);
}
#endif
+#if defined(MBEDTLS_AES_C)
mbedtls_aes_free(&ctx->aes_ctx);
+#else
+ ctr_drbg_destroy_psa_contex(&ctx->psa_ctx);
+#endif
mbedtls_platform_zeroize(ctx, sizeof(mbedtls_ctr_drbg_context));
ctx->reseed_interval = MBEDTLS_CTR_DRBG_RESEED_INTERVAL;
ctx->reseed_counter = -1;
@@ -129,8 +167,17 @@
unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
unsigned char chain[MBEDTLS_CTR_DRBG_BLOCKSIZE];
unsigned char *p, *iv;
- mbedtls_aes_context aes_ctx;
int ret = 0;
+#if defined(MBEDTLS_AES_C)
+ mbedtls_aes_context aes_ctx;
+#else
+ psa_status_t status;
+ size_t tmp_len;
+ mbedtls_ctr_drbg_psa_context psa_ctx;
+
+ psa_ctx.key_id = MBEDTLS_SVC_KEY_ID_INIT;
+ psa_ctx.operation = psa_cipher_operation_init();
+#endif
int i, j;
size_t buf_len, use_len;
@@ -141,7 +188,6 @@
memset(buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
MBEDTLS_CTR_DRBG_BLOCKSIZE + 16);
- mbedtls_aes_init(&aes_ctx);
/*
* Construct IV (16 bytes) and S in buffer
@@ -163,10 +209,20 @@
key[i] = i;
}
+#if defined(MBEDTLS_AES_C)
+ mbedtls_aes_init(&aes_ctx);
+
if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, key,
MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
goto exit;
}
+#else
+ status = ctr_drbg_setup_psa_context(&psa_ctx, key, sizeof(key));
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
/*
* Reduce data to MBEDTLS_CTR_DRBG_SEEDLEN bytes of data
@@ -182,10 +238,19 @@
use_len -= (use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE) ?
MBEDTLS_CTR_DRBG_BLOCKSIZE : use_len;
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT,
chain, chain)) != 0) {
goto exit;
}
+#else
+ status = psa_cipher_update(&psa_ctx.operation, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE,
+ chain, MBEDTLS_CTR_DRBG_BLOCKSIZE, &tmp_len);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
}
memcpy(tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE);
@@ -199,23 +264,46 @@
/*
* Do final encryption with reduced data
*/
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, tmp,
MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
goto exit;
}
+#else
+ ctr_drbg_destroy_psa_contex(&psa_ctx);
+
+ status = ctr_drbg_setup_psa_context(&psa_ctx, tmp, MBEDTLS_CTR_DRBG_KEYSIZE);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
iv = tmp + MBEDTLS_CTR_DRBG_KEYSIZE;
p = output;
for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT,
iv, iv)) != 0) {
goto exit;
}
+#else
+ status = psa_cipher_update(&psa_ctx.operation, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE,
+ iv, MBEDTLS_CTR_DRBG_BLOCKSIZE, &tmp_len);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
memcpy(p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE);
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
}
exit:
+#if defined(MBEDTLS_AES_C)
mbedtls_aes_free(&aes_ctx);
+#else
+ ctr_drbg_destroy_psa_contex(&psa_ctx);
+#endif
/*
* tidy up the stack
*/
@@ -246,8 +334,12 @@
{
unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
unsigned char *p = tmp;
- int i, j;
+ int j;
int ret = 0;
+#if !defined(MBEDTLS_AES_C)
+ psa_status_t status;
+ size_t tmp_len;
+#endif
memset(tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
@@ -255,34 +347,47 @@
/*
* Increase counter
*/
- for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--) {
- if (++ctx->counter[i - 1] != 0) {
- break;
- }
- }
+ mbedtls_ctr_increment_counter(ctx->counter);
/*
* Crypt counter block
*/
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
ctx->counter, p)) != 0) {
goto exit;
}
+#else
+ status = psa_cipher_update(&ctx->psa_ctx.operation, ctx->counter, sizeof(ctx->counter),
+ p, MBEDTLS_CTR_DRBG_BLOCKSIZE, &tmp_len);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
}
- for (i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++) {
- tmp[i] ^= data[i];
- }
+ mbedtls_xor(tmp, tmp, data, MBEDTLS_CTR_DRBG_SEEDLEN);
/*
* Update key and counter
*/
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, tmp,
MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
goto exit;
}
+#else
+ ctr_drbg_destroy_psa_contex(&ctx->psa_ctx);
+
+ status = ctr_drbg_setup_psa_context(&ctx->psa_ctx, tmp, MBEDTLS_CTR_DRBG_KEYSIZE);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
memcpy(ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE,
MBEDTLS_CTR_DRBG_BLOCKSIZE);
@@ -459,10 +564,20 @@
good_nonce_len(ctx->entropy_len));
/* Initialize with an empty key. */
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, key,
MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
return ret;
}
+#else
+ psa_status_t status;
+
+ status = ctr_drbg_setup_psa_context(&ctx->psa_ctx, key, MBEDTLS_CTR_DRBG_KEYSIZE);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ return status;
+ }
+#endif
/* Do the initial seeding. */
if ((ret = mbedtls_ctr_drbg_reseed_internal(ctx, custom, len,
@@ -497,10 +612,11 @@
{
int ret = 0;
mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
- unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
unsigned char *p = output;
- unsigned char tmp[MBEDTLS_CTR_DRBG_BLOCKSIZE];
- int i;
+ struct {
+ unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
+ unsigned char tmp[MBEDTLS_CTR_DRBG_BLOCKSIZE];
+ } locals;
size_t use_len;
if (output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST) {
@@ -511,7 +627,7 @@
return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
}
- memset(add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
+ memset(locals.add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
if (ctx->reseed_counter > ctx->reseed_interval ||
ctx->prediction_resistance) {
@@ -522,51 +638,58 @@
}
if (add_len > 0) {
- if ((ret = block_cipher_df(add_input, additional, add_len)) != 0) {
+ if ((ret = block_cipher_df(locals.add_input, additional, add_len)) != 0) {
goto exit;
}
- if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
+ if ((ret = ctr_drbg_update_internal(ctx, locals.add_input)) != 0) {
goto exit;
}
}
while (output_len > 0) {
/*
- * Increase counter
+ * Increase counter (treat it as a 128-bit big-endian integer).
*/
- for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--) {
- if (++ctx->counter[i - 1] != 0) {
- break;
- }
- }
+ mbedtls_ctr_increment_counter(ctx->counter);
/*
* Crypt counter block
*/
+#if defined(MBEDTLS_AES_C)
if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
- ctx->counter, tmp)) != 0) {
+ ctx->counter, locals.tmp)) != 0) {
goto exit;
}
+#else
+ psa_status_t status;
+ size_t tmp_len;
+
+ status = psa_cipher_update(&ctx->psa_ctx.operation, ctx->counter, sizeof(ctx->counter),
+ locals.tmp, MBEDTLS_CTR_DRBG_BLOCKSIZE, &tmp_len);
+ if (status != PSA_SUCCESS) {
+ ret = psa_generic_status_to_mbedtls(status);
+ goto exit;
+ }
+#endif
use_len = (output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE)
? MBEDTLS_CTR_DRBG_BLOCKSIZE : output_len;
/*
* Copy random block to destination
*/
- memcpy(p, tmp, use_len);
+ memcpy(p, locals.tmp, use_len);
p += use_len;
output_len -= use_len;
}
- if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
+ if ((ret = ctr_drbg_update_internal(ctx, locals.add_input)) != 0) {
goto exit;
}
ctx->reseed_counter++;
exit:
- mbedtls_platform_zeroize(add_input, sizeof(add_input));
- mbedtls_platform_zeroize(tmp, sizeof(tmp));
+ mbedtls_platform_zeroize(&locals, sizeof(locals));
return ret;
}