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SourceVuESP-IDF Framework and ExamplesmbedTLSmbedtls_hmac_drbg_random()

mbedtls_hmac_drbg_random() function

Syntax

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Summary

Declaration

Definition

from hmac_drbg.h:378

int mbedtls_hmac_drbg_random(void *p_rng, unsigned char *output, size_t out_len);

Implemented in hmac_drbg.c:382

Arguments

Argument

Description

p_rng

The HMAC_DRBG context. This must be a pointer to a #mbedtls_hmac_drbg_context structure.

output

The buffer to fill.

out_len

The length of the buffer in bytes. This must be at most #MBEDTLS_HMAC_DRBG_MAX_REQUEST.

Return value

\c 0 if successful. #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED if a call to the entropy source failed. #MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG if \p out_len > #MBEDTLS_HMAC_DRBG_MAX_REQUEST.

References

Code

Location

Referrer

int mbedtls_hmac_drbg_random(void *p_rng, unsigned char *output, size_t out_len)

hmac_drbg.c:382

int mbedtls_hmac_drbg_random(void *p_rng, unsigned char *output, size_t out_len);

hmac_drbg.h:378

mbedtls_hmac_drbg_random, p_rng,

ecdsa.c:454

mbedtls_ecdsa_sign_det_restartable()

if ((ret = mbedtls_hmac_drbg_random(ctx, buf, sizeof(buf))) != 0) {

hmac_drbg.c:439

mbedtls_hmac_drbg_write_seed_file()

CHK(mbedtls_hmac_drbg_random(&ctx, buf, OUTPUT_LEN));

hmac_drbg.c:588

mbedtls_hmac_drbg_self_test()

CHK(mbedtls_hmac_drbg_random(&ctx, buf, OUTPUT_LEN));

hmac_drbg.c:589

mbedtls_hmac_drbg_self_test()

CHK(mbedtls_hmac_drbg_random(&ctx, buf, OUTPUT_LEN));

hmac_drbg.c:613

mbedtls_hmac_drbg_self_test()

CHK(mbedtls_hmac_drbg_random(&ctx, buf, OUTPUT_LEN));

hmac_drbg.c:614

mbedtls_hmac_drbg_self_test()

Call Tree

mbedtls_hmac_drbg_random() is called by 2 functions and calls 1 function:

mbedtls_hmac_drbg_write_seed_file()

mbedtls_hmac_drbg_self_test()

mbedtls_hmac_drbg_random()

mbedtls_hmac_drbg_random_with_add()

Data Use

mbedtls_hmac_drbg_random() writes 1 variable:

mbedtls_hmac_drbg_random()

mbedtls_ecdsa_sign_det_restartable()

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