sha256.h File Reference

#include "pico.h"
#include "hardware/structs/sha256.h"

Go to the source code of this file.

Data Structures
union	sha256_result_t
	SHA-256 result generated by the API. More...

Macros
#define	PARAM_ASSERTIONS_ENABLED_HARDWARE_SHA256   0
#define	SHA256_RESULT_BYTES   32
	Size of a sha256 result in bytes.

Enumerations
enum	sha256_endianness { SHA256_LITTLE_ENDIAN , SHA256_BIG_ENDIAN }
	SHA-256 endianness definition used in the API. More...

Functions
static void	sha256_set_dma_size (uint size_in_bytes)
	Configure the correct DMA data size.
static void	sha256_set_bswap (bool swap)
	Enable or disable byte swapping of 32-bit values.
static void	sha256_start (void)
	Prepare the hardware for a new checksum.
static bool	sha256_is_sum_valid (void)
	Check if a valid checksum has been calculated.
static bool	sha256_is_ready (void)
	Check if a the hardware is ready to accept more data.
static void	sha256_wait_valid_blocking (void)
	Wait until the checksum is valid.
static void	sha256_wait_ready_blocking (void)
	Wait until the hardware is ready to accept more data.
void	sha256_get_result (sha256_result_t *out, enum sha256_endianness endianness)
	Get the checksum result.
static bool	sha256_err_not_ready (void)
	Check if data was written before the hardware was ready.
static void	sha256_err_not_ready_clear (void)
	Clear the "not ready" error condition.
static volatile void *	sha256_get_write_addr (void)
	Address to write the data to be hashed.
static void	sha256_put_word (uint32_t word)
	Write one 32bit word of data to the SHA-256 hardware.
static void	sha256_put_byte (uint8_t b)
	Write one byte of data to the SHA-256 hardware.