-/*
- * rijndael-alg-fst.h v2.4 April '2000
- * rijndael-api-fst.h v2.4 April '2000
- *
- * Optimised ANSI C code
- *
- */
+/* $OpenBSD: rijndael.h,v 1.6 2001/01/29 01:58:17 niklas Exp $ */
-#ifndef RIJNDAEL_H
-#define RIJNDAEL_H
+#ifndef _RIJNDAEL_H_
+#define _RIJNDAEL_H_
-#define RIJNDAEL_MAXKC (256/32)
-#define RIJNDAEL_MAXROUNDS 14
+#include "config.h"
-#define RIJNDAEL_ENCRYPT 0
-#define RIJNDAEL_DECRYPT 1
+/* 1. Standard types for AES cryptography source code */
-typedef struct {
- int ROUNDS; /* key-length-dependent number of rounds */
- u_int8_t keySched[RIJNDAEL_MAXROUNDS+1][4][4];
-} rijndael_key;
+typedef u_int8_t u1byte; /* an 8 bit unsigned character type */
+typedef u_int16_t u2byte; /* a 16 bit unsigned integer type */
+typedef u_int32_t u4byte; /* a 32 bit unsigned integer type */
-int rijndael_encrypt(rijndael_key *key, u_int8_t a[16], u_int8_t b[16]);
-int rijndael_decrypt(rijndael_key *key, u_int8_t a[16], u_int8_t b[16]);
-int rijndael_makekey(rijndael_key *key, int direction, int keyLen, u_int8_t *keyMaterial);
+typedef int8_t s1byte; /* an 8 bit signed character type */
+typedef int16_t s2byte; /* a 16 bit signed integer type */
+typedef int32_t s4byte; /* a 32 bit signed integer type */
-#endif
+typedef struct _rijndael_ctx {
+ u4byte k_len;
+ int decrypt;
+ u4byte e_key[64];
+ u4byte d_key[64];
+} rijndael_ctx;
+
+
+/* 2. Standard interface for AES cryptographic routines */
+
+/* These are all based on 32 bit unsigned values and will therefore */
+/* require endian conversions for big-endian architectures */
+
+rijndael_ctx *rijndael_set_key __P((rijndael_ctx *, const u4byte *, u4byte, int));
+void rijndael_encrypt __P((rijndael_ctx *, const u4byte *, u4byte *));
+void rijndael_decrypt __P((rijndael_ctx *, const u4byte *, u4byte *));
+
+#endif /* _RIJNDAEL_H_ */