该code是基于最新的mbedtls所列出的,样例的代码路径如下所示
mbedtls/crypto/programs/pkey/ecdsa.c
具体的code如下所示
#if !defined(MBEDTLS_CONFIG_FILE)
#include mbedtls/config.h
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include mbedtls/platform.h
#els