4.4.2.2 Crypto_Hash_Shake_Update

crypto_Hash_Status_E Crypto_Hash_Shake_Update(
    st_Crypto_Hash_Shake_Ctx *ptr_shakeCtx_st, 
    uint8_t *ptr_data, 
    uint32_t dataLen
    );

Description

This API performs hash calculation for different variants SHAKE algorithms in multi-steps. Initialize context by calling Crypto_Hash_Shake_Init function before calling this API and after this API call Crypto_Hash_ShakeFinal to get hash/digest.

Parameters


No.	Argument Type	Argument Name	Type	Description
1	st_Crypto_Sha_Hash_Ctx	*ptr_shakeCtx_st	Input	Hash algorithm and crypto handler selection
2	uint8_t*	ptr_data	Input	Input data which digest needs to calculate
3	uint32_t	dataLen	Input	Length of the input data in number of bytes

Returns


Return Type	Description
crypto_Hash_Status_E	Function returns the status of the API.

Prerequisites

To use the HW handler, the algorithm must be enabled in Crypto v4 in MPLAB® Code Configurator.
To use the SW handler, the algorithm must be enabled in wolfCrypt, and linked to Crypto V4 in MPLAB® Code Configurator.
Crypto_Hash_Shake_Init must be called before calling Crypto_Hash_Shake_Update.

Example

Example provided in Crypto_Hash_Shake_Final.