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9d6a535ba1
This commit first changes the return convention of EccPoint_mult_safer() so
that it properly reports when faults are detected. Then all functions that
call it need to be changed to (1) follow the same return convention and (2)
properly propagate UECC_FAULT_DETECTED when it occurs.
Here's the reverse call graph from EccPoint_mult_safer() to the rest of the
library (where return values are translated to the MBEDTLS_ERR_ space) and test
functions (where expected return values are asserted explicitly).
EccPoint_mult_safer()
EccPoint_compute_public_key()
uECC_compute_public_key()
pkparse.c
tests/suites/test_suite_pkparse.function
uECC_make_key_with_d()
uECC_make_key()
ssl_cli.c
ssl_srv.c
tests/suites/test_suite_pk.function
tests/suites/test_suite_tinycrypt.function
uECC_shared_secret()
ssl_tls.c
tests/suites/test_suite_tinycrypt.function
uECC_sign_with_k()
uECC_sign()
pk.c
tests/suites/test_suite_tinycrypt.function
Note: in uECC_sign_with_k() a test for uECC_vli_isZero(p) is suppressed
because it is redundant with a more thorough test (point validity) done at the
end of EccPoint_mult_safer(). This redundancy was introduced in a previous
commit but not noticed earlier.
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| .. | ||
| CMakeLists.txt | ||
| ecc.c | ||
| ecc_dh.c | ||
| ecc_dsa.c | ||
| LICENSE | ||
| README | ||
================================================================================
TinyCrypt Cryptographic Library
(integrated as part of Mbed TLS)
================================================================================
Copyright (c) 2017, Intel Corporation. All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
- Neither the name of the Intel Corporation nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
================================================================================
Copyright (c) 2019 ARM Limited
================================================================================
Overview:
The TinyCrypt Library provides an implementation for constrained devices of a
minimal set of standard cryptography primitives.
This is a modified form of the library based on version 0.2.8 included as part
of Mbed TLS as a compilation option. It is not included in its full form and
those wishing to use TinyCrypt should use the original unmodified project.
The original project can be found here: https://github.com/intel/tinycrypt
Contributions should be made upstream to that project, and full documentation
can be found in the originating repository.
================================================================================
Organization:
tinycrypt: C source code of the cryptographic primitives.
include/tinycrypt: C header files of the cryptographic primitives.
No documentation is provided, and instead is available with the original
project.
Tests are provided as part of Mbed TLS and the Mbed TLS test suites.
================================================================================
Building:
To include TinyCrypt as part of Mbed TLS, enable the configuration option
MBEDTLS_USE_TINYCRYPT in the configration file 'include/mbedtls/config.h', and
build as Mbed TLS as normal.
================================================================================