Split ciphers into block and stream ciphers. Move base class headers

1 files changed, 41 insertions, 0 deletions

diff --git a/src/block/des/desx.cpp b/src/block/des/desx.cpp
new file mode 100644
index 000000000..fb76ec731
--- /dev/null
+++ b/src/block/des/desx.cpp
@@ -0,0 +1,41 @@
+/*************************************************
+* DES Source File                                *
+* (C) 1999-2007 Jack Lloyd                       *
+*************************************************/
+
+#include <botan/desx.h>
+#include <botan/xor_buf.h>
+
+namespace Botan {
+
+/*************************************************
+* DESX Encryption                                *
+*************************************************/
+void DESX::enc(const byte in[], byte out[]) const
+   {
+   xor_buf(out, in, K1.begin(), BLOCK_SIZE);
+   des.encrypt(out);
+   xor_buf(out, K2.begin(), BLOCK_SIZE);
+   }
+
+/*************************************************
+* DESX Decryption                                *
+*************************************************/
+void DESX::dec(const byte in[], byte out[]) const
+   {
+   xor_buf(out, in, K2.begin(), BLOCK_SIZE);
+   des.decrypt(out);
+   xor_buf(out, K1.begin(), BLOCK_SIZE);
+   }
+
+/*************************************************
+* DESX Key Schedule                              *
+*************************************************/
+void DESX::key(const byte key[], u32bit)
+   {
+   K1.copy(key, 8);
+   des.set_key(key + 8, 8);
+   K2.copy(key + 16, 8);
+   }
+
+}