Added md_process() to MD layer for generic internal access to hash
process functions
Access to process functions is needed to reduce possible timing attacks
on SSL MAC checks. As SSL is set to move to using the dynamic MD layer,
the MD layer needs access to these process functions as well.
diff --git a/library/md.c b/library/md.c
index 96065c9..07a93ec 100644
--- a/library/md.c
+++ b/library/md.c
@@ -294,4 +294,14 @@
return 0;
}
+int md_process( md_context_t *ctx, const unsigned char *data )
+{
+ if( ctx == NULL || ctx->md_info == NULL )
+ return POLARSSL_ERR_MD_BAD_INPUT_DATA;
+
+ ctx->md_info->process_func( ctx->md_ctx, data );
+
+ return 0;
+}
+
#endif