Defines all functions of mcuxClCss_Cmac. More...

Functions
MCUXCLCSS_API mcuxClCss_Status_Protected_t	mcuxClCss_Cmac_Async (mcuxClCss_CmacOption_t options, mcuxClCss_KeyIndex_t keyIdx, uint8_t const pKey, size_t keyLength, uint8_t const pInput, size_t inputLength, uint8_t *pMac)
	Performs CMAC with AES-128 or AES-256. More...

Detailed Description

Defines all functions of mcuxClCss_Cmac.

Function Documentation

MCUXCLCSS_API mcuxClCss_Status_Protected_t mcuxClCss_Cmac_Async	(	mcuxClCss_CmacOption_t	options,
		mcuxClCss_KeyIndex_t	keyIdx,
		uint8_t const *	pKey,
		size_t	keyLength,
		uint8_t const *	pInput,
		size_t	inputLength,
		uint8_t *	pMac
	)

Performs CMAC with AES-128 or AES-256.

Call mcuxClCss_WaitForOperation to complete the operation.

Parameters

[in]	options	The command options. For more information, see mcuxClCss_CmacOption_t.
[in]	keyIdx	The CMAC key index
[in]	pKey	Pointer to the padded CMAC key
[in]	keyLength	Size of `pKey` in bytes. Must be a valid CMAC key size. See the parameter properties section in the function description.
[in]	pInput	Pointer to a memory location which contains the data, padded via SP 800-38b standard, to be authenticated
[in]	inputLength	Size of `pInput` in bytes before padding
[in,out]	pMac	Pointer to the CMAC command state input/output. See the parameter properties section in the function description.

The properties of some parameters change with respect to selected options.

Parameter properties

options.extkey == MCUXCLCSS_CMAC_EXTERNAL_KEY_ENABLE

keyIdx is ignored.

pKey is ignored.

keyLength is ignored.

The intermediate state is written to pMac.

The resulting MAC is written to pMac.

options.soe is ignored.

Returns: An error code that can be any error code in MCUXCLCSS_STATUS_, see individual documentation for more information

Return values

MCUXCLCSS_STATUS_SW_INVALID_PARAM	if an invalid parameter was specified
MCUXCLCSS_STATUS_SW_CANNOT_INTERRUPT	if a running operation prevented the request
MCUXCLCSS_STATUS_OK_WAIT	on successful request