sha256.h File Reference

#include <stddef.h>
#include <stdint.h>

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Classes
struct	SHA256_CTX

Macros
#define	SHA256_BLOCK_SIZE   32

Typedefs
typedef uint8_t	BYTE
typedef uint32_t	WORD

Functions
void	sha256_init (SHA256_CTX *ctx)
void	sha256_update (SHA256_CTX *ctx, const BYTE data[], size_t len)
void	sha256_final (SHA256_CTX *ctx, BYTE hash[])
void	CRYPT_compute_sha256_hash (const uint8_t message[], size_t message_length, uint8_t hash[32])
	Computes the SHA256 hash of the message and stores the 32 byte hash at hash.

Macro Definition Documentation

SHA256_BLOCK_SIZE

#define SHA256_BLOCK_SIZE   32

Typedef Documentation

BYTE

typedef uint8_t BYTE

WORD

typedef uint32_t WORD

Function Documentation

CRYPT_compute_sha256_hash()

void CRYPT_compute_sha256_hash	(	const uint8_t	message[],
		size_t	message_length,
		uint8_t	hash[32] )

Computes the SHA256 hash of the message and stores the 32 byte hash at hash.

Parameters

[in]	message	The message to hash
[in]	message_length	Length of the message in bytes
[out]	hash	Where the 32 byte hash is stored

Note

Hashing 20x 4 KiB messages takes ~490ms.

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sha256_final()

void sha256_final	(	SHA256_CTX *	ctx,
		BYTE	hash[] )

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sha256_init()

void sha256_init

(

SHA256_CTX *

ctx

)

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sha256_update()

void sha256_update	(	SHA256_CTX *	ctx,
		const BYTE	data[],
		size_t	len )

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