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  1. /*
  2.  * @(#)des_crypt.h      2.1 88/08/11 4.0 RPCSRC;        from 1.4 88/02/08 (C) 1986 SMI
  3.  *
  4.  * des_crypt.h, des library routine interface
  5.  * Copyright (C) 1986, Sun Microsystems, Inc.
  6.  */
  7. /*
  8.  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  9.  * unrestricted use provided that this legend is included on all tape
  10.  * media and as a part of the software program in whole or part.  Users
  11.  * may copy or modify Sun RPC without charge, but are not authorized
  12.  * to license or distribute it to anyone else except as part of a product or
  13.  * program developed by the user.
  14.  *
  15.  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  16.  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  17.  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  18.  *
  19.  * Sun RPC is provided with no support and without any obligation on the
  20.  * part of Sun Microsystems, Inc. to assist in its use, correction,
  21.  * modification or enhancement.
  22.  *
  23.  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  24.  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  25.  * OR ANY PART THEREOF.
  26.  *
  27.  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  28.  * or profits or other special, indirect and consequential damages, even if
  29.  * Sun has been advised of the possibility of such damages.
  30.  *
  31.  * Sun Microsystems, Inc.
  32.  * 2550 Garcia Avenue
  33.  * Mountain View, California  94043
  34.  */
  35.  
  36. #ifndef __DES_CRYPT_H__
  37. #define __DES_CRYPT_H__ 1
  38.  
  39. #include <features.h>
  40.  
  41. __BEGIN_DECLS
  42.  
  43. #define DES_MAXDATA 8192        /* max bytes encrypted in one call */
  44. #define DES_DIRMASK (1 << 0)
  45. #define DES_ENCRYPT (0*DES_DIRMASK)     /* Encrypt */
  46. #define DES_DECRYPT (1*DES_DIRMASK)     /* Decrypt */
  47.  
  48.  
  49. #define DES_DEVMASK (1 << 1)
  50. #define DES_HW (0*DES_DEVMASK)  /* Use hardware device */
  51. #define DES_SW (1*DES_DEVMASK)  /* Use software device */
  52.  
  53.  
  54. #define DESERR_NONE 0   /* succeeded */
  55. #define DESERR_NOHWDEVICE 1     /* succeeded, but hw device not available */
  56. #define DESERR_HWERROR 2        /* failed, hardware/driver error */
  57. #define DESERR_BADPARAM 3       /* failed, bad parameter to call */
  58.  
  59. #define DES_FAILED(err) \
  60.         ((err) > DESERR_NOHWDEVICE)
  61.  
  62. /*
  63.  * cbc_crypt()
  64.  * ecb_crypt()
  65.  *
  66.  * Encrypt (or decrypt) len bytes of a buffer buf.
  67.  * The length must be a multiple of eight.
  68.  * The key should have odd parity in the low bit of each byte.
  69.  * ivec is the input vector, and is updated to the new one (cbc only).
  70.  * The mode is created by oring together the appropriate parameters.
  71.  * DESERR_NOHWDEVICE is returned if DES_HW was specified but
  72.  * there was no hardware to do it on (the data will still be
  73.  * encrypted though, in software).
  74.  */
  75.  
  76.  
  77. /*
  78.  * Cipher Block Chaining mode
  79.  */
  80. extern int cbc_crypt (char *__key, char *__buf, unsigned __len,
  81.                       unsigned __mode, char *__ivec) __THROW;
  82.  
  83. /*
  84.  * Electronic Code Book mode
  85.  */
  86. extern int ecb_crypt (char *__key, char *__buf, unsigned __len,
  87.                       unsigned __mode) __THROW;
  88.  
  89. /*
  90.  * Set des parity for a key.
  91.  * DES parity is odd and in the low bit of each byte
  92.  */
  93. extern void des_setparity (char *__key) __THROW;
  94.  
  95. __END_DECLS
  96.  
  97. #endif
  98.