sha256.h File Reference

This file contains SHA-224 and SHA-256 definitions and functions. More...

#include "mbedtls/config.h"
#include <stddef.h>
#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	mbedtls_sha256_context
	The SHA-256 context structure. More...

Macros
#define	MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED   -0x0037
	SHA-256 hardware accelerator failed. More...
#define	MBEDTLS_ERR_SHA256_BAD_INPUT_DATA   -0x0074
	SHA-256 input data was malformed. More...

Typedefs
typedef struct mbedtls_sha256_context	mbedtls_sha256_context
	The SHA-256 context structure. More...

Functions
void	mbedtls_sha256_init (mbedtls_sha256_context *ctx)
	This function initializes a SHA-256 context. More...
void	mbedtls_sha256_free (mbedtls_sha256_context *ctx)
	This function clears a SHA-256 context. More...
void	mbedtls_sha256_clone (mbedtls_sha256_context *dst, const mbedtls_sha256_context *src)
	This function clones the state of a SHA-256 context. More...
int	mbedtls_sha256_starts_ret (mbedtls_sha256_context *ctx, int is224)
	This function starts a SHA-224 or SHA-256 checksum calculation. More...
int	mbedtls_sha256_update_ret (mbedtls_sha256_context *ctx, const unsigned char *input, size_t ilen)
	This function feeds an input buffer into an ongoing SHA-256 checksum calculation. More...
int	mbedtls_sha256_finish_ret (mbedtls_sha256_context *ctx, unsigned char output[32])
	This function finishes the SHA-256 operation, and writes the result to the output buffer. More...
int	mbedtls_internal_sha256_process (mbedtls_sha256_context *ctx, const unsigned char data[64])
	This function processes a single data block within the ongoing SHA-256 computation. More...
void	mbedtls_sha256_starts (mbedtls_sha256_context *ctx, int is224)
	This function starts a SHA-224 or SHA-256 checksum calculation. More...
void	mbedtls_sha256_update (mbedtls_sha256_context *ctx, const unsigned char *input, size_t ilen)
	This function feeds an input buffer into an ongoing SHA-256 checksum calculation. More...
void	mbedtls_sha256_finish (mbedtls_sha256_context *ctx, unsigned char output[32])
	This function finishes the SHA-256 operation, and writes the result to the output buffer. More...
void	mbedtls_sha256_process (mbedtls_sha256_context *ctx, const unsigned char data[64])
	This function processes a single data block within the ongoing SHA-256 computation. More...
int	mbedtls_sha256_ret (const unsigned char *input, size_t ilen, unsigned char output[32], int is224)
	This function calculates the SHA-224 or SHA-256 checksum of a buffer. More...
void	mbedtls_sha256 (const unsigned char *input, size_t ilen, unsigned char output[32], int is224)
	This function calculates the SHA-224 or SHA-256 checksum of a buffer. More...

Detailed Description

This file contains SHA-224 and SHA-256 definitions and functions.

The Secure Hash Algorithms 224 and 256 (SHA-224 and SHA-256) cryptographic hash functions are defined in FIPS 180-4: Secure Hash Standard (SHS).

Definition in file sha256.h.