--- /dev/null
+/* -*-c-*-
+ *
+ * $Id: rijndael.h,v 1.1 2000/06/17 11:56:07 mdw Exp $
+ *
+ * The Rijndael block cipher
+ *
+ * (c) 2000 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.h,v $
+ * Revision 1.1 2000/06/17 11:56:07 mdw
+ * New cipher.
+ *
+ */
+
+/*----- Notes on the Rijndael block cipher --------------------------------*
+ *
+ * Invented by Joan Daemen and Vincent Rijmen, Rijndael is a fast and
+ * relatively simple 128-bit block cipher proposed by the designers as an AES
+ * candidate. At the time of writing, the AES winner hasn't been decided.
+ * Rijnadel is fast, but has a low security margin. I recommend waiting
+ * before using Rijndael for any sensitive applications.
+ */
+
+#ifndef CATACOMB_RIJNDAEL_H
+#define CATACOMB_RIJNDAEL_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <stddef.h>
+
+#include <mLib/bits.h>
+
+/*----- Magical numbers ---------------------------------------------------*/
+
+#define RIJNDAEL_BLKSZ 16
+#define RIJNDAEL_KEYSZ 32
+#define RIJNDAEL_CLASS (N, L, 128)
+
+extern const octet rijndael_keysz[];
+
+/*----- Data structures ---------------------------------------------------*/
+
+#define RIJNDAEL_MAXROUNDS 32
+#define RIJNDAEL_KWORDS ((RIJNDAEL_MAXROUNDS + 1) * (RIJNDAEL_BLKSZ / 4))
+
+typedef struct rijndael_ctx {
+ unsigned nr;
+ uint32 w[RIJNDAEL_KWORDS];
+ uint32 wi[RIJNDAEL_KWORDS];
+} rijndael_ctx;
+
+/*----- Functions provided ------------------------------------------------*/
+
+/* --- @rijndael_init@ --- *
+ *
+ * Arguments: @rijndael_ctx *k@ = pointer to context to initialize
+ * @const void *buf@ = pointer to buffer of key material
+ * @size_t sz@ = size of the key material
+ *
+ * Returns: ---
+ *
+ * Use: Initializes a Rijndael context with a particular key. This
+ * implementation of Rijndael doesn't impose any particular
+ * limits on the key size except that it must be multiple of 4
+ * bytes long. 256 bits seems sensible, though.
+ */
+
+extern void rijndael_init(rijndael_ctx */*k*/,
+ const void */*buf*/, size_t /*sz*/);
+
+/* --- @rijndael_eblk@, @rijndael_dblk@ --- *
+ *
+ * Arguments: @const rijndael_ctx *k@ = pointer to Rijndael context
+ * @const uint32 s[4]@ = pointer to source block
+ * @uint32 d[4]@ = pointer to destination block
+ *
+ * Returns: ---
+ *
+ * Use: Low-level block encryption and decryption.
+ */
+
+extern void rijndael_eblk(const rijndael_ctx */*k*/,
+ const uint32 */*s*/, uint32 */*dst*/);
+extern void rijndael_dblk(const rijndael_ctx */*k*/,
+ const uint32 */*s*/, uint32 */*dst*/);
+
+/*----- That's all, folks -------------------------------------------------*/
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif