Added mechanism to provide alternative cipher / hash implementations
All symmetric cipher algorithms and hash algorithms now include support
for a POLARSSL_XXX_ALT flag that prevents the definition of the
algorithm context structure and all 'core' functions.
(cherry picked from commit 4087c47043cb7b8b51e69f1de47ab6a2bccead3d)
diff --git a/library/des.c b/library/des.c
index 8ae5894..0cf4b3d 100644
--- a/library/des.c
+++ b/library/des.c
@@ -1,7 +1,7 @@
/*
* FIPS-46-3 compliant Triple-DES implementation
*
- * Copyright (C) 2006-2010, Brainspark B.V.
+ * Copyright (C) 2006-2013, Brainspark B.V.
*
* This file is part of PolarSSL (http://www.polarssl.org)
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
@@ -35,6 +35,8 @@
#include "polarssl/des.h"
+#if !defined(POLARSSL_DES_ALT)
+
/*
* 32-bit integer manipulation macros (big endian)
*/
@@ -751,6 +753,8 @@
return( 0 );
}
+#endif /* !POLARSSL_DES_ALT */
+
#if defined(POLARSSL_SELF_TEST)
#include <stdio.h>