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Merge branch 'mbedtls-2.16' into baremetal-2.16-20190909

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* mbedtls-2.16: (28 commits)
  Bump version to Mbed TLS 2.16.3
  Changelog entry
  Check for zero length and NULL buffer pointer
  ssl-opt.sh: wait for proxy to start before running the script further
  Fix uninitialized variable in x509_crt
  HMAC DRBG: Split entropy-gathering requests to reduce request sizes
  Fix the license header of hkdf
  Add a change log entry
  Add a test for mlaformed ECJPAKE context
  Fix handling of md failure
  Add a test for signing content with a long ECDSA key
  Add documentation notes about the required size of the signature buffers
  Add missing MBEDTLS_ECP_C dependencies in check_config.h
  Change size of preallocated buffer for pk_sign() calls
  Adapt ChangeLog
  Fix mpi_bigendian_to_host() on bigendian systems
  Add ChangeLog entry for new function
  Add ChangeLog entry
  Correct deterministic ECDSA behavior
  Add warning for alternative ECDSA implementations
  ...
This commit is contained in:
Manuel Pégourié-Gonnard
2019-09-10 11:24:29 +02:00
parent 0e895727be 04a049bda1
commit 8abd0a0c84
31 changed files with 443 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/mbedtls/check_config.h
View File

@@ -158,7 +158,7 @@
#error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || ( \
#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || ( \
!defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) && \
@@ -169,7 +169,9 @@
!defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) ) )
!defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) && \
!defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) ) )
#error "MBEDTLS_ECP_C defined, but not all prerequisites"
#endif

10
include/mbedtls/config.h
View File

@@ -440,6 +440,16 @@
* dependencies on them, and considering stronger message digests
* and ciphers instead.
*
* \warning If both MBEDTLS_ECDSA_SIGN_ALT and MBEDTLS_ECDSA_DETERMINISTIC are
* enabled, then the deterministic ECDH signature functions pass the
* the static HMAC-DRBG as RNG to mbedtls_ecdsa_sign(). Therefore
* alternative implementations should use the RNG only for generating
* the ephemeral key and nothing else. If this is not possible, then
* MBEDTLS_ECDSA_DETERMINISTIC should be disabled and an alternative
* implementation should be provided for mbedtls_ecdsa_sign_det_ext()
* (and for mbedtls_ecdsa_sign_det() too if backward compatibility is
* desirable).
*
*/
//#define MBEDTLS_MD2_PROCESS_ALT
//#define MBEDTLS_MD4_PROCESS_ALT

59
include/mbedtls/ecdsa.h
View File

@@ -175,6 +175,19 @@ int mbedtls_ecdsa_sign( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s,
* (SECG): SEC1 Elliptic Curve Cryptography</em>, section
* 4.1.3, step 5.
*
* \warning Since the output of the internal RNG is always the same for
* the same key and message, this limits the efficiency of
* blinding and leaks information through side channels. For
* secure behavior use mbedtls_ecdsa_sign_det_ext() instead.
*
* (Optimally the blinding is a random value that is different
* on every execution. In this case the blinding is still
* random from the attackers perspective, but is the same on
* each execution. This means that this blinding does not
* prevent attackers from recovering secrets by combining
* several measurement traces, but may prevent some attacks
* that exploit relationships between secret data.)
*
* \see ecp.h
*
* \param grp The context for the elliptic curve to use.
@@ -200,6 +213,52 @@ int mbedtls_ecdsa_sign_det( mbedtls_ecp_group *grp, mbedtls_mpi *r,
mbedtls_mpi *s, const mbedtls_mpi *d,
const unsigned char *buf, size_t blen,
mbedtls_md_type_t md_alg );
/**
* \brief This function computes the ECDSA signature of a
* previously-hashed message, deterministic version.
*
* For more information, see <em>RFC-6979: Deterministic
* Usage of the Digital Signature Algorithm (DSA) and Elliptic
* Curve Digital Signature Algorithm (ECDSA)</em>.
*
* \note If the bitlength of the message hash is larger than the
* bitlength of the group order, then the hash is truncated as
* defined in <em>Standards for Efficient Cryptography Group
* (SECG): SEC1 Elliptic Curve Cryptography</em>, section
* 4.1.3, step 5.
*
* \see ecp.h
*
* \param grp The context for the elliptic curve to use.
* This must be initialized and have group parameters
* set, for example through mbedtls_ecp_group_load().
* \param r The MPI context in which to store the first part
* the signature. This must be initialized.
* \param s The MPI context in which to store the second part
* the signature. This must be initialized.
* \param d The private signing key. This must be initialized
* and setup, for example through mbedtls_ecp_gen_privkey().
* \param buf The hashed content to be signed. This must be a readable
* buffer of length \p blen Bytes. It may be \c NULL if
* \p blen is zero.
* \param blen The length of \p buf in Bytes.
* \param md_alg The hash algorithm used to hash the original data.
* \param f_rng_blind The RNG function used for blinding. This must not be
* \c NULL.
* \param p_rng_blind The RNG context to be passed to \p f_rng. This may be
* \c NULL if \p f_rng doesn't need a context parameter.
*
* \return \c 0 on success.
* \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX
* error code on failure.
*/
int mbedtls_ecdsa_sign_det_ext( mbedtls_ecp_group *grp, mbedtls_mpi *r,
mbedtls_mpi *s, const mbedtls_mpi *d,
const unsigned char *buf, size_t blen,
mbedtls_md_type_t md_alg,
int (*f_rng_blind)(void *, unsigned char *,
size_t),
void *p_rng_blind );
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
/**

24
include/mbedtls/hkdf.h
View File

@@ -7,22 +7,22 @@
* specified by RFC 5869.
*/
/*
* Copyright (C) 2016-2018, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
* Copyright (C) 2016-2019, ARM Limited, All Rights Reserved
* 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
* 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
* 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.
* 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.
*
* This file is part of mbed TLS (https://tls.mbed.org)
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_HKDF_H
#define MBEDTLS_HKDF_H

8
include/mbedtls/pk.h
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@@ -435,6 +435,10 @@ int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options,
*
* \note For RSA, md_alg may be MBEDTLS_MD_NONE if hash_len != 0.
* For ECDSA, md_alg may never be MBEDTLS_MD_NONE.
*
* \note In order to ensure enough space for the signature, the
* \p sig buffer size must be of at least
* `max(MBEDTLS_ECDSA_MAX_LEN, MBEDTLS_MPI_MAX_SIZE)` bytes.
*/
int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
@@ -449,6 +453,10 @@ int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
* \c mbedtls_ecp_set_max_ops() to reduce blocking for ECC
* operations. For RSA, same as \c mbedtls_pk_sign().
*
* \note In order to ensure enough space for the signature, the
* \p sig buffer size must be of at least
* `max(MBEDTLS_ECDSA_MAX_LEN, MBEDTLS_MPI_MAX_SIZE)` bytes.
*
* \param ctx The PK context to use. It must have been set up
* with a private key.
* \param md_alg Hash algorithm used (see notes)

9
include/mbedtls/rsa.h
View File

@@ -904,7 +904,8 @@ int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx,
* the size of the hash corresponding to \p md_alg.
* \param sig The buffer to hold the signature. This must be a writable
* buffer of length \c ctx->len Bytes. For example, \c 256 Bytes
* for an 2048-bit RSA modulus.
* for an 2048-bit RSA modulus. A buffer length of
* #MBEDTLS_MPI_MAX_SIZE is always safe.
*
* \return \c 0 if the signing operation was successful.
* \return An \c MBEDTLS_ERR_RSA_XXX error code on failure.
@@ -951,7 +952,8 @@ int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx,
* the size of the hash corresponding to \p md_alg.
* \param sig The buffer to hold the signature. This must be a writable
* buffer of length \c ctx->len Bytes. For example, \c 256 Bytes
* for an 2048-bit RSA modulus.
* for an 2048-bit RSA modulus. A buffer length of
* #MBEDTLS_MPI_MAX_SIZE is always safe.
*
* \return \c 0 if the signing operation was successful.
* \return An \c MBEDTLS_ERR_RSA_XXX error code on failure.
@@ -1012,7 +1014,8 @@ int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx,
* the size of the hash corresponding to \p md_alg.
* \param sig The buffer to hold the signature. This must be a writable
* buffer of length \c ctx->len Bytes. For example, \c 256 Bytes
* for an 2048-bit RSA modulus.
* for an 2048-bit RSA modulus. A buffer length of
* #MBEDTLS_MPI_MAX_SIZE is always safe.
*
* \return \c 0 if the signing operation was successful.
* \return An \c MBEDTLS_ERR_RSA_XXX error code on failure.

8
include/mbedtls/version.h
View File

@@ -40,16 +40,16 @@
*/
#define MBEDTLS_VERSION_MAJOR 2
#define MBEDTLS_VERSION_MINOR 16
#define MBEDTLS_VERSION_PATCH 2
#define MBEDTLS_VERSION_PATCH 3
/**
* The single version number has the following structure:
* MMNNPP00
* Major version | Minor version | Patch version
*/
#define MBEDTLS_VERSION_NUMBER 0x02100200
#define MBEDTLS_VERSION_STRING "2.16.2"
#define MBEDTLS_VERSION_STRING_FULL "mbed TLS 2.16.2"
#define MBEDTLS_VERSION_NUMBER 0x02100300
#define MBEDTLS_VERSION_STRING "2.16.3"
#define MBEDTLS_VERSION_STRING_FULL "mbed TLS 2.16.3"
#if defined(MBEDTLS_VERSION_C)