crypto/wvoakley.cc

   1 /*
   2  * Worldvisions Weaver Software:
   3  * Copyright (C) 2003 Net Integration Technologies, Inc.
   4  *
   5  * Oakley authentication for IPSec
   6  */
   7
   8 #include "wvoakley.h"
   9
  10 /* Group 1 prime */
  11 static unsigned char group1_key[] =
  12 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC9, 0x0F, 0xDA, 0xA2,
  13   0x21, 0x68, 0xC2, 0x34, 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1,
  14   0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74, 0x02, 0x0B, 0xBE, 0xA6,
  15   0x3B, 0x13, 0x9B, 0x22, 0x51, 0x4A, 0x08, 0x79, 0x8E, 0x34, 0x04, 0xDD,
  16   0xEF, 0x95, 0x19, 0xB3, 0xCD, 0x3A, 0x43, 0x1B, 0x30, 0x2B, 0x0A, 0x6D,
  17   0xF2, 0x5F, 0x14, 0x37, 0x4F, 0xE1, 0x35, 0x6D, 0x6D, 0x51, 0xC2, 0x45,
  18   0xE4, 0x85, 0xB5, 0x76, 0x62, 0x5E, 0x7E, 0xC6, 0xF4, 0x4C, 0x42, 0xE9,
  19   0xA6, 0x3A, 0x36, 0x20, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
  20 };
  21
  22 /* Group 2 prime */
  23 static unsigned char group2_key[] =
  24 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC9, 0x0F, 0xDA, 0xA2,
  25   0x21, 0x68, 0xC2, 0x34, 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1,
  26   0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74, 0x02, 0x0B, 0xBE, 0xA6,
  27   0x3B, 0x13, 0x9B, 0x22, 0x51, 0x4A, 0x08, 0x79, 0x8E, 0x34, 0x04, 0xDD,
  28   0xEF, 0x95, 0x19, 0xB3, 0xCD, 0x3A, 0x43, 0x1B, 0x30, 0x2B, 0x0A, 0x6D,
  29   0xF2, 0x5F, 0x14, 0x37, 0x4F, 0xE1, 0x35, 0x6D, 0x6D, 0x51, 0xC2, 0x45,
  30   0xE4, 0x85, 0xB5, 0x76, 0x62, 0x5E, 0x7E, 0xC6, 0xF4, 0x4C, 0x42, 0xE9,
  31   0xA6, 0x37, 0xED, 0x6B, 0x0B, 0xFF, 0x5C, 0xB6, 0xF4, 0x06, 0xB7, 0xED,
  32   0xEE, 0x38, 0x6B, 0xFB, 0x5A, 0x89, 0x9F, 0xA5, 0xAE, 0x9F, 0x24, 0x11,
  33   0x7C, 0x4B, 0x1F, 0xE6, 0x49, 0x28, 0x66, 0x51, 0xEC, 0xE6, 0x53, 0x81,
  34   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
  35 };
  36
  37 WvOakleyAuth::WvOakleyAuth(int group)
  38 {
  39     switch (group)
  40     {
  41     case 1:
  42         dh = new WvDiffieHellman(group1_key, sizeof(group1_key),
  43                                  DH_GENERATOR_2);
  44         break;
  45     case 2:
  46         dh = new WvDiffieHellman(group2_key, sizeof(group2_key),
  47                                  DH_GENERATOR_2);
  48         break;
  49     case 3: case 4:
  50         /* We don't support any eliptic curve stuff. */
  51         break;
  52     }
  53     pub_len = dh->pub_key_len();
  54 }
  55
  56 short WvOakleyAuth::public_len()
  57 {
  58     return pub_len;
  59 }
  60
  61 short WvOakleyAuth::get_public_key(WvBuf &outbuf, short len)
  62 {
  63     return dh->get_public_value(outbuf, len);
  64 }
  65
  66 void WvOakleyAuth::create_secret(WvBuf &_other_pub_key, short len)
  67 {
  68     other_pub_key.put(_other_pub_key.peek(0, len), len);
  69     other_len = len;
  70     dh->create_secret(_other_pub_key, len, dh_secret);
  71     return;
  72 }
  73
  74 short WvOakleyAuth::other_pub_len()
  75 {
  76     return other_len;
  77 }
  78
  79 short WvOakleyAuth::get_other_public_key(WvBuf &outbuf, short len)
  80 {
  81     if (len > other_len)
  82         len = other_len;
  83
  84     outbuf.put(other_pub_key.peek(0, len), len);
  85     return len;
  86 }