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.
diff --git a/include/polarssl/md5.h b/include/polarssl/md5.h
index b0611e2..c90789d 100644
--- a/include/polarssl/md5.h
+++ b/include/polarssl/md5.h
@@ -3,7 +3,7 @@
*
* \brief MD5 message digest algorithm (hash function)
*
- * 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>
@@ -27,6 +27,8 @@
#ifndef POLARSSL_MD5_H
#define POLARSSL_MD5_H
+#include "config.h"
+
#include <string.h>
#ifdef _MSC_VER
@@ -38,6 +40,10 @@
#define POLARSSL_ERR_MD5_FILE_IO_ERROR -0x0074 /**< Read/write error in file. */
+#if !defined(POLARSSL_MD5_ALT)
+// Regular implementation
+//
+
/**
* \brief MD5 context structure
*/
@@ -80,6 +86,21 @@
*/
void md5_finish( md5_context *ctx, unsigned char output[16] );
+/* Internal use */
+void md5_process( md5_context *ctx, const unsigned char data[64] );
+
+#ifdef __cplusplus
+}
+#endif
+
+#else /* POLARSSL_MD5_ALT */
+#include "md5_alt.h"
+#endif /* POLARSSL_MD5_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/**
* \brief Output = MD5( input buffer )
*
@@ -154,9 +175,6 @@
*/
int md5_self_test( int verbose );
-/* Internal use */
-void md5_process( md5_context *ctx, const unsigned char data[64] );
-
#ifdef __cplusplus
}
#endif