X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/7246869f7bf4069fd46eaa78fde65d0879dbfdcd..8b3d7f307a1f99d461898af5422a960cd8080e72:/rijndael-base.h

diff --git a/rijndael-base.h b/rijndael-base.h
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+/* -*-c-*-
+ *
+ * $Id: rijndael-base.h,v 1.1 2001/05/07 17:31:37 mdw Exp $
+ *
+ * Internal header for Rijndael implementation
+ *
+ * (c) 2001 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * Catacomb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Revision history --------------------------------------------------* 
+ *
+ * $Log: rijndael-base.h,v $
+ * Revision 1.1  2001/05/07 17:31:37  mdw
+ * Centralize Rijndael tables and key scheduling.
+ *
+ */
+
+#ifndef CATACOMB_RIJNDAEL_BASE_H
+#define CATACOMB_RIJNDAEL_BASE_H
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <mLib/bits.h>
+
+/*----- Constant tables ---------------------------------------------------*/
+
+extern const octet rijndael_s[256];
+extern const octet rijndael_si[256];
+extern const uint32 rijndael_t[4][256];
+extern const uint32 rijndael_ti[4][256];
+extern const uint32 rijndael_u[4][256];
+extern const octet rijndael_rcon[];
+
+#define S rijndael_s
+#define SI rijndael_si
+#define T rijndael_t
+#define TI rijndael_ti
+#define U rijndael_u
+#define RCON rijndael_rcon
+
+/*----- Handy macros ------------------------------------------------------*/
+
+#define SUB(s, a, b, c, d)						\
+  (s[U8((a) >>  0)] <<  0 | s[U8((b) >>  8)] <<  8 |			\
+   s[U8((c) >> 16)] << 16 | s[U8((d) >> 24)] << 24)
+
+#define MIX(t, a, b, c, d)						\
+  (t[0][U8((a) >>  0)] ^ t[1][U8((b) >>  8)] ^				\
+   t[2][U8((c) >> 16)] ^ t[3][U8((d) >> 24)])
+
+/*----- That's all, folks -------------------------------------------------*/
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif