cups/md5passwd.c

   1 /*
   2  * MD5 password support for CUPS (deprecated).
   3  *
   4  * Copyright 2007-2017 by Apple Inc.
   5  * Copyright 1997-2005 by Easy Software Products.
   6  *
   7  * These coded instructions, statements, and computer programs are the
   8  * property of Apple Inc. and are protected by Federal copyright
   9  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  10  * which should have been included with this file.  If this file is
  11  * missing or damaged, see the license at "http://www.cups.org/".
  12  *
  13  * This file is subject to the Apple OS-Developed Software exception.
  14  */
  15
  16 /*
  17  * Include necessary headers...
  18  */
  19
  20 #include <cups/cups.h>
  21 #include "http-private.h"
  22 #include "string-private.h"
  23
  24
  25 /*
  26  * 'httpMD5()' - Compute the MD5 sum of the username:group:password.
  27  *
  28  * @deprecated@
  29  */
  30
  31 char *                                  /* O - MD5 sum */
  32 httpMD5(const char *username,           /* I - User name */
  33         const char *realm,              /* I - Realm name */
  34         const char *passwd,             /* I - Password string */
  35         char       md5[33])             /* O - MD5 string */
  36 {
  37   unsigned char         sum[16];        /* Sum data */
  38   char                  line[256];      /* Line to sum */
  39
  40
  41  /*
  42   * Compute the MD5 sum of the user name, group name, and password.
  43   */
  44
  45   snprintf(line, sizeof(line), "%s:%s:%s", username, realm, passwd);
  46   cupsHashData("md5", (unsigned char *)line, strlen(line), sum, sizeof(sum));
  47
  48  /*
  49   * Return the sum...
  50   */
  51
  52   return ((char *)cupsHashString(sum, sizeof(sum), md5, 33));
  53 }
  54
  55
  56 /*
  57  * 'httpMD5Final()' - Combine the MD5 sum of the username, group, and password
  58  *                    with the server-supplied nonce value, method, and
  59  *                    request-uri.
  60  *
  61  * @deprecated@
  62  */
  63
  64 char *                                  /* O - New sum */
  65 httpMD5Final(const char *nonce,         /* I - Server nonce value */
  66              const char *method,        /* I - METHOD (GET, POST, etc.) */
  67              const char *resource,      /* I - Resource path */
  68              char       md5[33])        /* IO - MD5 sum */
  69 {
  70   unsigned char         sum[16];        /* Sum data */
  71   char                  line[1024];     /* Line of data */
  72   char                  a2[33];         /* Hash of method and resource */
  73
  74
  75  /*
  76   * First compute the MD5 sum of the method and resource...
  77   */
  78
  79   snprintf(line, sizeof(line), "%s:%s", method, resource);
  80   cupsHashData("md5", (unsigned char *)line, strlen(line), sum, sizeof(sum));
  81   httpMD5String(sum, a2);
  82
  83  /*
  84   * Then combine A1 (MD5 of username, realm, and password) with the nonce
  85   * and A2 (method + resource) values to get the final MD5 sum for the
  86   * request...
  87   */
  88
  89   snprintf(line, sizeof(line), "%s:%s:%s", md5, nonce, a2);
  90   cupsHashData("md5", (unsigned char *)line, strlen(line), sum, sizeof(sum));
  91
  92   return ((char *)cupsHashString(sum, sizeof(sum), md5, 33));
  93 }
  94
  95
  96 /*
  97  * 'httpMD5String()' - Convert an MD5 sum to a character string.
  98  *
  99  * @deprecated@
 100  */
 101
 102 char *                                  /* O - MD5 sum in hex */
 103 httpMD5String(const unsigned char *sum, /* I - MD5 sum data */
 104               char                md5[33])
 105                                         /* O - MD5 sum in hex */
 106 {
 107   return ((char *)cupsHashString(sum, 16, md5, 33));
 108 }