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  * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   8  */
   9
  10 /*
  11  * Include necessary headers...
  12  */
  13
  14 #include <cups/cups.h>
  15 #include "http-private.h"
  16 #include "string-private.h"
  17
  18
  19 /*
  20  * 'httpMD5()' - Compute the MD5 sum of the username:group:password.
  21  *
  22  * @deprecated@
  23  */
  24
  25 char *                                  /* O - MD5 sum */
  26 httpMD5(const char *username,           /* I - User name */
  27         const char *realm,              /* I - Realm name */
  28         const char *passwd,             /* I - Password string */
  29         char       md5[33])             /* O - MD5 string */
  30 {
  31   unsigned char         sum[16];        /* Sum data */
  32   char                  line[256];      /* Line to sum */
  33
  34
  35  /*
  36   * Compute the MD5 sum of the user name, group name, and password.
  37   */
  38
  39   snprintf(line, sizeof(line), "%s:%s:%s", username, realm, passwd);
  40   cupsHashData("md5", (unsigned char *)line, strlen(line), sum, sizeof(sum));
  41
  42  /*
  43   * Return the sum...
  44   */
  45
  46   return ((char *)cupsHashString(sum, sizeof(sum), md5, 33));
  47 }
  48
  49
  50 /*
  51  * 'httpMD5Final()' - Combine the MD5 sum of the username, group, and password
  52  *                    with the server-supplied nonce value, method, and
  53  *                    request-uri.
  54  *
  55  * @deprecated@
  56  */
  57
  58 char *                                  /* O - New sum */
  59 httpMD5Final(const char *nonce,         /* I - Server nonce value */
  60              const char *method,        /* I - METHOD (GET, POST, etc.) */
  61              const char *resource,      /* I - Resource path */
  62              char       md5[33])        /* IO - MD5 sum */
  63 {
  64   unsigned char         sum[16];        /* Sum data */
  65   char                  line[1024];     /* Line of data */
  66   char                  a2[33];         /* Hash of method and resource */
  67
  68
  69  /*
  70   * First compute the MD5 sum of the method and resource...
  71   */
  72
  73   snprintf(line, sizeof(line), "%s:%s", method, resource);
  74   cupsHashData("md5", (unsigned char *)line, strlen(line), sum, sizeof(sum));
  75   cupsHashString(sum, sizeof(sum), a2, sizeof(a2));
  76
  77  /*
  78   * Then combine A1 (MD5 of username, realm, and password) with the nonce
  79   * and A2 (method + resource) values to get the final MD5 sum for the
  80   * request...
  81   */
  82
  83   snprintf(line, sizeof(line), "%s:%s:%s", md5, nonce, a2);
  84   cupsHashData("md5", (unsigned char *)line, strlen(line), sum, sizeof(sum));
  85
  86   return ((char *)cupsHashString(sum, sizeof(sum), md5, 33));
  87 }
  88
  89
  90 /*
  91  * 'httpMD5String()' - Convert an MD5 sum to a character string.
  92  *
  93  * @deprecated@
  94  */
  95
  96 char *                                  /* O - MD5 sum in hex */
  97 httpMD5String(const unsigned char *sum, /* I - MD5 sum data */
  98               char                md5[33])
  99                                         /* O - MD5 sum in hex */
 100 {
 101   return ((char *)cupsHashString(sum, 16, md5, 33));
 102 }