Very Strange problem with mbedtls
Hello,
i have a very strange problem,
I’m new to this forum, I’m using a NUCLEO-f429zi board freertos, tcp win lwip and mbedtls for ssl.
when I call this procedure for the seed of causal numbers:
mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy, (const unsigned char *)”stm32f4”, strlen(“stm32f4”)))
in this function of the library where a memset 0 in buffer is blocked:
int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx, const unsigned char *additional, size_t len )
{
unsigned char seedMBEDTLS_CTR_DRBG_MAX_SEED_INPUT;
size_t seedlen = 0;
if( ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ||
len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
memset( seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT );
or it could be a disconnection of st link.
excuse for my easy english
regards
Giacomo
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