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The TinyCrypt PK signature wrapper uses ASN.1 writing functions for length and tag, accounting for the only dependency of the baremetal build on ASN.1 writing. Since all lengths to be encoded are below 128 Bytes and are hence ASN.1 encoded as single Bytes, the dependency on ASN.1 writing can be removed at low complexity by writing the length and tags directly. |
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|---|---|---|
| .. | ||
| baremetal.h | ||
| baremetal_test.h | ||
| config-ccm-psk-tls1_2.h | ||
| config-mini-tls1_1.h | ||
| config-no-entropy.h | ||
| config-suite-b.h | ||
| config-thread.h | ||
| README.txt | ||
This directory contains example configuration files.
The examples are generally focused on a particular usage case (eg, support for
a restricted number of ciphersuites) and aim at minimizing resource usage for
this target. They can be used as a basis for custom configurations.
These files are complete replacements for the default config.h. To use one of
them, you can pick one of the following methods:
1. Replace the default file include/mbedtls/config.h with the chosen one.
(Depending on your compiler, you may need to adjust the line with
#include "mbedtls/check_config.h" then.)
2. Define MBEDTLS_CONFIG_FILE and adjust the include path accordingly.
For example, using make:
CFLAGS="-I$PWD/configs -DMBEDTLS_CONFIG_FILE='<foo.h>'" make
Or, using cmake:
find . -iname '*cmake*' -not -name CMakeLists.txt -exec rm -rf {} +
CFLAGS="-I$PWD/configs -DMBEDTLS_CONFIG_FILE='<foo.h>'" cmake .
make
Note that the second method also works if you want to keep your custom
configuration file outside the mbed TLS tree.