1 files changed, 65 insertions, 0 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/block/des/desx.cpp b/src/libs/3rdparty/botan/src/lib/block/des/desx.cpp
new file mode 100644
index 0000000000..e869b3ebf8
--- /dev/null
+++ b/src/libs/3rdparty/botan/src/lib/block/des/desx.cpp
@@ -0,0 +1,65 @@
+/*
+* DES
+* (C) 1999-2007 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#include <botan/desx.h>
+
+namespace Botan {
+
+/*
+* DESX Encryption
+*/
+void DESX::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const
+   {
+   verify_key_set(m_K1.empty() == false);
+
+   for(size_t i = 0; i != blocks; ++i)
+      {
+      xor_buf(out, in, m_K1.data(), BLOCK_SIZE);
+      m_des.encrypt(out);
+      xor_buf(out, m_K2.data(), BLOCK_SIZE);
+
+      in += BLOCK_SIZE;
+      out += BLOCK_SIZE;
+      }
+   }
+
+/*
+* DESX Decryption
+*/
+void DESX::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const
+   {
+   verify_key_set(m_K1.empty() == false);
+
+   for(size_t i = 0; i != blocks; ++i)
+      {
+      xor_buf(out, in, m_K2.data(), BLOCK_SIZE);
+      m_des.decrypt(out);
+      xor_buf(out, m_K1.data(), BLOCK_SIZE);
+
+      in += BLOCK_SIZE;
+      out += BLOCK_SIZE;
+      }
+   }
+
+/*
+* DESX Key Schedule
+*/
+void DESX::key_schedule(const uint8_t key[], size_t)
+   {
+   m_K1.assign(key, key + 8);
+   m_des.set_key(key + 8, 8);
+   m_K2.assign(key + 16, key + 24);
+   }
+
+void DESX::clear()
+   {
+   m_des.clear();
+   zap(m_K1);
+   zap(m_K2);
+   }
+
+}