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+/****************************************************************************
+ * tools/cxd56/clefia.h
+ *
+ * Copyright (C) 2007, 2008 Sony Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#ifndef _TOOLS_CXD56_CLEFIA_H_
+#define _TOOLS_CXD56_CLEFIA_H_
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct cipher
+  {
+    int mode;
+    int dir;
+    uint8_t rk[8 * 26 + 16];
+    uint8_t vector[16];
+    int round;
+    uint8_t k1[16];
+    uint8_t k2[16];
+  };
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+struct cipher *cipher_init(uint8_t * key, uint8_t * iv);
+void cipher_deinit(struct cipher *c);
+int cipher_calc_cmac(struct cipher *c, void *data, int size, void *cmac);
+void bytexor(unsigned char *dst, const unsigned char *a,
+             const unsigned char *b, int bytelen);
+int clefiakeyset(unsigned char *rk, const unsigned char *skey);
+void clefiaencrypt(unsigned char *ct, const unsigned char *pt,
+                   const unsigned char *rk, const int r);
+
+#endif