4.3.2.2 Crypto_Hash_Sha_Update

crypto_Hash_Status_E Crypto_Hash_Sha_Update(
    st_Crypto_Sha_Hash_Ctx *ptr_shaCtx_st, 
    uint8_t *ptr_data, 
    uint32_t dataLen
    );

Description

This API performs hash calculation for different variants of SHA-1, SHA-2, and SHA-3 (Excluding SHAKE) algorithms in multi-steps. Initialize context by calling Crypto_Hash_Sha_Init function before calling this API and after this API call Crypto_Hash_Sha_Final to get hash/digest.

Parameters


No.	Argument Type	Argument Name	Type	Description
1	st_Crypto_Sha_Hash_Ctx*	ptr_shaCtx_st	Output	Hash algorithm and crypto handler selection
2	uint8_t*	ptr_data	Input	Input data to be hashed
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_Sha_Init must be called before calling Crypto_Hash_Sha_Update.

Example

Example provided in Crypto_Hash_Sha_Final.