Merge pull request #185 from gilles-peskine-arm/harvard-md

Remove method dispatch from md

include/mbedtls/md_internal.h

@@ -46,42 +46,17 @@ extern "C" {
  */
 struct mbedtls_md_info_t
 {
-    /** Digest identifier */
-    mbedtls_md_type_t type;
-
     /** Name of the message digest */
     const char * name;
 
+    /** Digest identifier */
+    mbedtls_md_type_t type;
+
     /** Output length of the digest function in bytes */
-    int size;
+    unsigned char size;
 
     /** Block length of the digest function in bytes */
-    int block_size;
-
-    /** Digest initialisation function */
-    int (*starts_func)( void *ctx );
-
-    /** Digest update function */
-    int (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
-
-    /** Digest finalisation function */
-    int (*finish_func)( void *ctx, unsigned char *output );
-
-    /** Generic digest function */
-    int (*digest_func)( const unsigned char *input, size_t ilen,
-                        unsigned char *output );
-
-    /** Allocate a new context */
-    void * (*ctx_alloc_func)( void );
-
-    /** Free the given context */
-    void (*ctx_free_func)( void *ctx );
-
-    /** Clone state from a context */
-    void (*clone_func)( void *dst, const void *src );
-
-    /** Internal use only */
-    int (*process_func)( void *ctx, const unsigned char *input );
+    unsigned char block_size;
 };
 
 #if defined(MBEDTLS_MD2_C)