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SourceVuESP-IDF Framework and ExamplesESP-IDFtc_cmac_setup()

tc_cmac_setup() function

Configures the CMAC state to use the given AES key

Syntax

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Summary

Declaration

Definition

from cmac_mode.h:142

int tc_cmac_setup(TCCmacState_t s, const uint8_t *key, TCAesKeySched_t sched);

Implemented in cmac_mode.c:97

Arguments

Argument

Description

IN/OUT -- the state to set up

key

IN -- the key to use

sched

IN -- AES key schedule

Return value

returns TC_CRYPTO_SUCCESS (1) after having configured the CMAC state returns TC_CRYPTO_FAIL (0) if: s == NULL or key == NULL

References

Code

Location

Referrer

int tc_cmac_setup(TCCmacState_t s, const uint8_t *key, TCAesKeySched_t sched)

cmac_mode.c:97

int tc_cmac_setup(TCCmacState_t s, const uint8_t *key, TCAesKeySched_t sched)

cmac_mode.c:97

int tc_cmac_setup(TCCmacState_t s, const uint8_t *key,

cmac_mode.h:142

int tc_cmac_setup(TCCmacState_t s, const uint8_t *key,

cmac_mode.h:142

if (tc_cmac_setup(&state, key, &sched) == TC_CRYPTO_FAIL) {

crypto.c:38

bt_mesh_aes_cmac()

Call Tree

tc_cmac_setup() is called by 1 function and calls 5 functions:

bt_mesh_aes_cmac()

tc_cmac_setup()

_set()

tc_aes128_set_encrypt_key()

tc_aes_encrypt()

tc_cmac_init()

gf_double()

Data Use

tc_cmac_setup() reads 4 variables and writes 1 variable:

tc_cmac_struct::iv

tc_cmac_struct::K1

tc_cmac_struct::K2

tc_cmac_struct::sched

tc_cmac_setup()

tc_cmac_struct::sched

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tc_cmac_setup() function

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