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SourceVuESP-IDF Framework and ExamplesESP-IDFtc_cmac_update()

tc_cmac_update() function

Incrementally computes CMAC over the next data segment

Syntax

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Summary

Declaration

Definition

from cmac_mode.h:176

int tc_cmac_update(TCCmacState_t s, const uint8_t *data, size_t dlen);

Implemented in cmac_mode.c:157

Arguments

Argument

Description

IN/OUT -- the CMAC state

data

IN -- the next data segment to MAC

dlen

IN -- the length of data in bytes

Return value

returns TC_CRYPTO_SUCCESS (1) after successfully updating the CMAC state returns TC_CRYPTO_FAIL (0) if: s == NULL or if data == NULL when dlen > 0

References

Code

Location

Referrer

int tc_cmac_update(TCCmacState_t s, const uint8_t *data, size_t data_length)

cmac_mode.c:157

int tc_cmac_update(TCCmacState_t s, const uint8_t *data, size_t data_length)

cmac_mode.c:157

int tc_cmac_update(TCCmacState_t s, const uint8_t *data, size_t dlen);

cmac_mode.h:176

int tc_cmac_update(TCCmacState_t s, const uint8_t *data, size_t dlen);

cmac_mode.h:176

if (tc_cmac_update(&state, sg->data,

crypto.c:43

bt_mesh_aes_cmac()

Call Tree

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

bt_mesh_aes_cmac()

tc_cmac_update()

_copy()

tc_aes_encrypt()

Data Use

tc_cmac_update() reads 5 variables and writes 2 variables:

tc_cmac_struct::iv

tc_cmac_struct::leftover

tc_cmac_struct::leftover_offset

tc_cmac_struct::sched

tc_cmac_struct::countdown

tc_cmac_update()

tc_cmac_struct::leftover_offset

tc_cmac_struct::countdown

Class Tree

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Implementations

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Instances

Lifecycle

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tc_cmac_update() function

Syntax

Arguments

Return value

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