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+/*
+ * @(#)des_crypt.h 2.1 88/08/11 4.0 RPCSRC; from 1.4 88/02/08 (C) 1986 SMI
+ *
+ * des_crypt.h, des library routine interface
+ * Copyright (C) 1986, Sun Microsystems, Inc.
+ */
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part. Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+
+#ifndef __DES_CRYPT_H__
+#define __DES_CRYPT_H__ 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+#define DES_MAXDATA 8192 /* max bytes encrypted in one call */
+#define DES_DIRMASK (1 << 0)
+#define DES_ENCRYPT (0*DES_DIRMASK) /* Encrypt */
+#define DES_DECRYPT (1*DES_DIRMASK) /* Decrypt */
+
+
+#define DES_DEVMASK (1 << 1)
+#define DES_HW (0*DES_DEVMASK) /* Use hardware device */
+#define DES_SW (1*DES_DEVMASK) /* Use software device */
+
+
+#define DESERR_NONE 0 /* succeeded */
+#define DESERR_NOHWDEVICE 1 /* succeeded, but hw device not available */
+#define DESERR_HWERROR 2 /* failed, hardware/driver error */
+#define DESERR_BADPARAM 3 /* failed, bad parameter to call */
+
+#define DES_FAILED(err) \
+ ((err) > DESERR_NOHWDEVICE)
+
+/*
+ * cbc_crypt()
+ * ecb_crypt()
+ *
+ * Encrypt (or decrypt) len bytes of a buffer buf.
+ * The length must be a multiple of eight.
+ * The key should have odd parity in the low bit of each byte.
+ * ivec is the input vector, and is updated to the new one (cbc only).
+ * The mode is created by oring together the appropriate parameters.
+ * DESERR_NOHWDEVICE is returned if DES_HW was specified but
+ * there was no hardware to do it on (the data will still be
+ * encrypted though, in software).
+ */
+
+
+/*
+ * Cipher Block Chaining mode
+ */
+extern int cbc_crypt __P ((char *__key, char *__buf, unsigned __len,
+ unsigned __mode, char *__ivec));
+
+/*
+ * Electronic Code Book mode
+ */
+extern int ecb_crypt __P ((char *__key, char *__buf, unsigned __len,
+ unsigned __mode));
+
+/*
+ * Set des parity for a key.
+ * DES parity is odd and in the low bit of each byte
+ */
+extern void des_setparity __P ((char *__key));
+
+__END_DECLS
+
+#endif