mbedTLS + 0/6 examples

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SourceVuSTM32 Libraries and SamplesmbedTLSmbedtls_entropy_func()

mbedtls_entropy_func() function

Retrieve entropy from the accumulator (Maximum length: MBEDTLS_ENTROPY_BLOCK_SIZE) (Thread-safe if MBEDTLS_THREADING_C is enabled)

Syntax

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Summary

Declaration

Definition

from entropy.h:201

int mbedtls_entropy_func( void *data, unsigned char *output, size_t len );

Implemented in entropy.c:326

Arguments

Argument

Description

data

Entropy context

output

Buffer to fill

len

Number of bytes desired, must be at most MBEDTLS_ENTROPY_BLOCK_SIZE

Return value

0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED

Examples

mbedtls_entropy_func() is referenced by 6 libraries and example projects:

Examples

STM32469I_EVAL

Applications

mbedTLS

SSL_Client

SSL_Server

STM324x9I_EVAL

Applications

mbedTLS

SSL_Client

SSL_Server

STM324xG_EVAL

Applications

mbedTLS

SSL_Client

SSL_Server

References

from 0/6 examples

Code

Location

int mbedtls_entropy_func( void *data, unsigned char *output, size_t len )

entropy.c:326

int mbedtls_entropy_func( void *data, unsigned char *output, size_t len );

entropy.h:201

Call Tree

from 0/6 examples

mbedtls_entropy_func() calls 8 functions:

mbedtls_entropy_func()

mbedtls_platform_zeroize()

mbedtls_sha512_init()

mbedtls_sha512_free()

mbedtls_sha512_starts_ret()

mbedtls_sha512_update_ret()

mbedtls_sha512_finish_ret()

mbedtls_sha512_ret()

entropy_gather_internal()

Data Use

from 0/6 examples

mbedtls_entropy_func() reads 4 variables and writes 1 variable:

mbedtls_entropy_source_state::size

mbedtls_entropy_source_state::threshold

mbedtls_entropy_context::source_count

mbedtls_entropy_context::source

mbedtls_entropy_func()

mbedtls_entropy_source_state::size

Class Tree

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Override Tree

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Implementations

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Instances

from 0/6 examples

Lifecycle

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