Add XTS mode, from IEEE P1619

1 files changed, 14 insertions, 0 deletions

diff --git a/src/engine/def_engine/def_mode.cpp b/src/engine/def_engine/def_mode.cpp
index a61683f93..2b093a0a3 100644
--- a/src/engine/def_engine/def_mode.cpp
+++ b/src/engine/def_engine/def_mode.cpp
@@ -40,6 +40,10 @@
   #include <botan/eax.h>
 #endif
 
+#if defined(BOTAN_HAS_XTS)
+  #include <botan/xts.h>
+#endif
+
 namespace Botan {
 
 namespace {
@@ -188,6 +192,16 @@ Keyed_Filter* Default_Engine::get_cipher(const std::string& algo_spec,
       }
 #endif
 
+#if defined(BOTAN_HAS_XTS)
+   if(mode == "XTS")
+      {
+      if(direction == ENCRYPTION)
+         return new XTS_Encryption(block_cipher->clone());
+      else
+         return new XTS_Decryption(block_cipher->clone());
+      }
+#endif
+
    throw Algorithm_Not_Found("get_mode: " + cipher_name + "/" +
                              mode + "/" + padding);
    }