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SourceVuESP-IDF Framework and ExamplesmbedTLSmbedtls_ssl_tls_prf()

mbedtls_ssl_tls_prf() function

TLS-PRF function for key derivation.

Syntax

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Summary

Declaration

Definition

from ssl.h:5649

int mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf, const unsigned char *secret, size_t slen, const char *label, const unsigned char *random, size_t rlen, unsigned char *dstbuf, size_t dlen);

Implemented in ssl_tls.c:466

Arguments

Argument

Declared as

Description

prf

const mbedtls_tls_prf_types

The tls_prf type function type to be used.

secret

const unsigned char *

Secret for the key derivation function.

slen

size_t

Length of the secret.

label

const char *

String label for the key derivation function, terminated with null character.

random

const unsigned char *

Random bytes.

rlen

size_t

Length of the random bytes buffer.

dstbuf

unsigned char *

The buffer holding the derived key.

dlen

size_t

Length of the output buffer.

Return value

0 on success. An SSL specific error on failure.

Examples

mbedtls_ssl_tls_prf() is referenced by 1 libraries and example projects:

ESP-IDF

References

from 0/1 examples

Code

Location

int mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf,

ssl_tls.c:466

int mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf,

ssl.h:5649

Call Tree

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Data Use

from 0/1 examples

mbedtls_ssl_tls_prf() reads 4 variables:

mbedtls_tls_prf_types::MBEDTLS_SSL_TLS_PRF_SHA384

mbedtls_tls_prf_types::MBEDTLS_SSL_TLS_PRF_SHA256

tls_prf_sha256()

tls_prf_sha384()

mbedtls_ssl_tls_prf()

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Instances

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