181 void mbedtls_md_init( mbedtls_md_context_t *ctx )  in mbedtls_md_init()  argument
183     memset( ctx, 0, sizeof( mbedtls_md_context_t ) );  in mbedtls_md_init()
186 void mbedtls_md_free( mbedtls_md_context_t *ctx )  in mbedtls_md_free()  argument
188     if( ctx == NULL || ctx->md_info == NULL )  in mbedtls_md_free()
191     if( ctx->md_ctx != NULL )  in mbedtls_md_free()
192         ctx->md_info->ctx_free_func( ctx->md_ctx );  in mbedtls_md_free()
194     if( ctx->hmac_ctx != NULL )  in mbedtls_md_free()
196         mbedtls_zeroize( ctx->hmac_ctx, 2 * ctx->md_info->block_size );  in mbedtls_md_free()
197         mbedtls_free( ctx->hmac_ctx );  in mbedtls_md_free()
200     mbedtls_zeroize( ctx, sizeof( mbedtls_md_context_t ) );  in mbedtls_md_free()
219 int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info )  in mbedtls_md_init_ctx()  argument
221     return mbedtls_md_setup( ctx, md_info, 1 );  in mbedtls_md_init_ctx()
225 int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac )  in mbedtls_md_setup()  argument
227     if( md_info == NULL || ctx == NULL )  in mbedtls_md_setup()
230     if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )  in mbedtls_md_setup()
235         ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size );  in mbedtls_md_setup()
236         if( ctx->hmac_ctx == NULL )  in mbedtls_md_setup()
238             md_info->ctx_free_func( ctx->md_ctx );  in mbedtls_md_setup()
243     ctx->md_info = md_info;  in mbedtls_md_setup()
248 int mbedtls_md_starts( mbedtls_md_context_t *ctx )  in mbedtls_md_starts()  argument
250     if( ctx == NULL || ctx->md_info == NULL )  in mbedtls_md_starts()
253     ctx->md_info->starts_func( ctx->md_ctx );  in mbedtls_md_starts()
258 int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )  in mbedtls_md_update()  argument
260     if( ctx == NULL || ctx->md_info == NULL )  in mbedtls_md_update()
263     ctx->md_info->update_func( ctx->md_ctx, input, ilen );  in mbedtls_md_update()
268 int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output )  in mbedtls_md_finish()  argument
270     if( ctx == NULL || ctx->md_info == NULL )  in mbedtls_md_finish()
273     ctx->md_info->finish_func( ctx->md_ctx, output );  in mbedtls_md_finish()
295     mbedtls_md_context_t ctx;  in mbedtls_md_file()  local
304     mbedtls_md_init( &ctx );  in mbedtls_md_file()
306     if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )  in mbedtls_md_file()
309     md_info->starts_func( ctx.md_ctx );  in mbedtls_md_file()
312         md_info->update_func( ctx.md_ctx, buf, n );  in mbedtls_md_file()
320     md_info->finish_func( ctx.md_ctx, output );  in mbedtls_md_file()
324     mbedtls_md_free( &ctx );  in mbedtls_md_file()
330 int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen )  in mbedtls_md_hmac_starts()  argument
336     if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )  in mbedtls_md_hmac_starts()
339     if( keylen > (size_t) ctx->md_info->block_size )  in mbedtls_md_hmac_starts()
341         ctx->md_info->starts_func( ctx->md_ctx );  in mbedtls_md_hmac_starts()
342         ctx->md_info->update_func( ctx->md_ctx, key, keylen );  in mbedtls_md_hmac_starts()
343         ctx->md_info->finish_func( ctx->md_ctx, sum );  in mbedtls_md_hmac_starts()
345         keylen = ctx->md_info->size;  in mbedtls_md_hmac_starts()
349     ipad = (unsigned char *) ctx->hmac_ctx;  in mbedtls_md_hmac_starts()
350     opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;  in mbedtls_md_hmac_starts()
352     memset( ipad, 0x36, ctx->md_info->block_size );  in mbedtls_md_hmac_starts()
353     memset( opad, 0x5C, ctx->md_info->block_size );  in mbedtls_md_hmac_starts()
363     ctx->md_info->starts_func( ctx->md_ctx );  in mbedtls_md_hmac_starts()
364     ctx->md_info->update_func( ctx->md_ctx, ipad, ctx->md_info->block_size );  in mbedtls_md_hmac_starts()
369 int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )  in mbedtls_md_hmac_update()  argument
371     if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )  in mbedtls_md_hmac_update()
374     ctx->md_info->update_func( ctx->md_ctx, input, ilen );  in mbedtls_md_hmac_update()
379 int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output )  in mbedtls_md_hmac_finish()  argument
384     if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )  in mbedtls_md_hmac_finish()
387     opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;  in mbedtls_md_hmac_finish()
389     ctx->md_info->finish_func( ctx->md_ctx, tmp );  in mbedtls_md_hmac_finish()
390     ctx->md_info->starts_func( ctx->md_ctx );  in mbedtls_md_hmac_finish()
391     ctx->md_info->update_func( ctx->md_ctx, opad, ctx->md_info->block_size );  in mbedtls_md_hmac_finish()
392     ctx->md_info->update_func( ctx->md_ctx, tmp, ctx->md_info->size );  in mbedtls_md_hmac_finish()
393     ctx->md_info->finish_func( ctx->md_ctx, output );  in mbedtls_md_hmac_finish()
398 int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx )  in mbedtls_md_hmac_reset()  argument
402     if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )  in mbedtls_md_hmac_reset()
405     ipad = (unsigned char *) ctx->hmac_ctx;  in mbedtls_md_hmac_reset()
407     ctx->md_info->starts_func( ctx->md_ctx );  in mbedtls_md_hmac_reset()
408     ctx->md_info->update_func( ctx->md_ctx, ipad, ctx->md_info->block_size );  in mbedtls_md_hmac_reset()
417     mbedtls_md_context_t ctx;  in mbedtls_md_hmac()  local
423     mbedtls_md_init( &ctx );  in mbedtls_md_hmac()
425     if( ( ret = mbedtls_md_setup( &ctx, md_info, 1 ) ) != 0 )  in mbedtls_md_hmac()
428     mbedtls_md_hmac_starts( &ctx, key, keylen );  in mbedtls_md_hmac()
429     mbedtls_md_hmac_update( &ctx, input, ilen );  in mbedtls_md_hmac()
430     mbedtls_md_hmac_finish( &ctx, output );  in mbedtls_md_hmac()
432     mbedtls_md_free( &ctx );  in mbedtls_md_hmac()
437 int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data )  in mbedtls_md_process()  argument
439     if( ctx == NULL || ctx->md_info == NULL )  in mbedtls_md_process()
442     ctx->md_info->process_func( ctx->md_ctx, data );  in mbedtls_md_process()