merge of '5fdf69ca60d1683cdd9f4c2595134bed26394834'

     and '6b61c50f4cf888bea302ac8fcf5dbb573b443251'

--HG--
extra : convert_revision : b1dd3b94e60a07a176dba2b035ac79968595990a

1 files changed, 38 insertions, 0 deletions

diff --git a/libtomcrypt/src/encauth/eax/eax_addheader.c b/libtomcrypt/src/encauth/eax/eax_addheader.c
new file mode 100644
index 0000000..b1054e5
--- /dev/null
+++ b/libtomcrypt/src/encauth/eax/eax_addheader.c
@@ -0,0 +1,38 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ */
+/** 
+    @file eax_addheader.c
+    EAX implementation, add meta-data, by Tom St Denis 
+*/
+#include "tomcrypt.h"
+
+#ifdef EAX_MODE
+
+/** 
+    add header (metadata) to the stream 
+    @param eax    The current EAX state
+    @param header The header (meta-data) data you wish to add to the state
+    @param length The length of the header data
+    @return CRYPT_OK if successful
+*/
+int eax_addheader(eax_state *eax, const unsigned char *header, 
+                  unsigned long length)
+{
+   LTC_ARGCHK(eax    != NULL);
+   LTC_ARGCHK(header != NULL);
+   return omac_process(&eax->headeromac, header, length);
+}
+
+#endif
+
+/* $Source: /cvs/libtom/libtomcrypt/src/encauth/eax/eax_addheader.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2006/03/31 14:15:35 $ */