sha256_alt.h

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#ifndef MBEDTLS_SHA256_ALT_H
#define MBEDTLS_SHA256_ALT_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

/***************************************************************************/
/***************************************************************************/
#if defined(MBEDTLS_SHA256_ALT)

/* SiliconLabs CRYPTO hardware acceleration implementation */

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

#define MBEDTLS_ERR_SHA256_BAD_INPUT      -0x5100  
#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
#if defined( MBEDTLS_SLCL_PLUGINS )
    CRYPTODRV_Context_t  cryptodrv_ctx; 
#else
    uint32_t state[8];            
#endif
    uint32_t total[2];            
    unsigned char buffer[64];     
    int is224;                    
}
mbedtls_sha256_context;

void mbedtls_sha256_init( mbedtls_sha256_context *ctx );

void mbedtls_sha256_free( mbedtls_sha256_context *ctx );

#if defined( MBEDTLS_SLCL_PLUGINS )

int mbedtls_sha256_set_device_instance(mbedtls_sha256_context *ctx,
                                       unsigned int            devno);

int mbedtls_sha256_set_device_lock_wait_ticks(mbedtls_sha256_context *ctx,
                                              int                     ticks);

#endif /* #if defined( MBEDTLS_SLCL_PLUGINS ) */

void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
                           const mbedtls_sha256_context *src );

int mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );

void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
                    size_t ilen );

void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );

/* Internal use */
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );

int mbedtls_sha256( const unsigned char *input, size_t ilen,
           unsigned char output[32], int is224 );

int mbedtls_sha256_self_test( int verbose, int device_instance );

#ifdef __cplusplus
}
#endif

#endif /* #if defined(MBEDTLS_SHA256_ALT) */

#endif /* #ifndef MBEDTLS_SHA256_ALT_H */