WvStreams
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 }
group
Definition: argp-parse.c:204
WvBufBase< unsigned char >
Specialization of WvBufBase for unsigned char type buffers intended for use with raw memory buffers.
Definition: wvbuf.h:22
WvDiffieHellman
Definition: wvdiffiehellman.h:16
WvBufBaseCommonImpl::peek
const T * peek(int offset, size_t count)
Returns a const pointer into the buffer at the specified offset to the specified number of elements w...
Definition: wvbufbase.h:225