Test vectors for STUNNokia CorporationP.O. Box 407NOKIA GROUP00045FI+358 50 487 6315remi.denis-courmont@nokia.com
Transport
Behavior Engineering for Hindrance AvoidanceSTUNtestvectorsfingerprint The Session Traversal Utilities for NAT (STUN)
protocol defines two STUN attributes -- FINGERPRINT
and MESSAGE-INTEGRITY -- that may be included in STUN
messages.
This document provides test vectors for those two
attributes.
The Session Traversal Utilities for NAT
(STUN)
protocol defines two different hashes that may be included in
messages exchanged by peers implementing that protocol:
a 32-bits Circular Redundancy Check.
a HMAC-SHA1 authentication code.
This document provides samples of properly-formatted STUN
messages including these hashes, for the sake of testing
implementations of the STUN protocol.
All included vectors are represented as a series of
hexadecimal values in network byte order.
Each pair of hexadecimal digits represents one byte.
Messages follow the ICE Connectivity Checks use case of STUN,
(see ).
These messages include FINGERPRINT, MESSAGE-INTEGRITY
and XOR-MAPPED-ADDRESS STUN attributes.
These attributes are considered to be most prone
to implementation errors.
An additional message is provided to test
STUN authentication with long-term credentials
(which is not used by ICE).
In the following sample messages,
two types of plain UTF-8 text attributes are included.
The values of certain of these attributes
were purposedly sized to require padding.
In this document, ASCII white spaces (U+0020) are used
for padding within the first three messages - this is arbitrary.
Similarly, the last message uses nul bytes for padding.
As per ,
padding bytes can have any value.
This request uses the following parameters:
"STUN test client" (without quotes)
"evtj:h6vY" (without quotes)
"VOkJxbRl1RmTxUk/WvJxBt" (without quotes)
00 01 00 58 Request type and message length
21 12 a4 42 Magic cookie
b7 e7 a7 01 }
bc 34 d6 86 } Transaction ID
fa 87 df ae }
80 30 00 10 CLIENT attribute header
53 54 55 4e }
20 74 65 73 } User-agent...
74 20 63 6c } ...name
69 65 6e 74 }
00 24 00 04 PRIORITY attribute header
6e 00 01 ff ICE priority value
80 29 00 08 ICE-CONTROLLED attribute header
93 2f f9 b1 } Pseudo-random tie breaker...
51 26 3b 36 } ...for ICE control
00 06 00 09 USERNAME attribute header
65 76 74 6a }
3a 68 36 76 } Username (9 bytes) and padding (3 bytes)
59 20 20 20 }
00 08 00 14 MESSAGE-INTEGRITY attribute header
3e f9 bc 22 }
7b 2b 98 0f }
4f 5f 90 9b } HMAC-SHA1 fingerprint
60 00 3b 91 }
fa ba 42 6b }
80 28 00 04 FINGERPRINT attribute header
ad 8a 85 ff CRC32 fingerprint
This response used the following parameter:
"VOkJxbRl1RmTxUk/WvJxBt" (without quotes)
"test vector" (without quotes)
192.0.2.1 port 32853
01 01 00 3c Response type and message length
21 12 a4 42 Magic cookie
b7 e7 a7 01 }
bc 34 d6 86 } Transaction ID
fa 87 df ae }
80 22 00 0b SERVER attribute header
74 65 73 74 }
20 76 65 63 } UTF-8 server name
74 6f 72 20 }
00 20 00 08 XOR-MAPPED-ADDRESS attribute header
00 01 a1 47 Address family (IPv4) and xor'd mapped port number
e1 12 a6 43 Xor'd mapped IPv4 address
00 08 00 14 MESSAGE-INTEGRITY attribute header
2b 91 f5 99 }
fd 9e 90 c3 }
8c 74 89 f9 } HMAC-SHA1 fingerprint
2a f9 ba 53 }
f0 6b e7 d7 }
80 28 00 04 FINGERPRINT attribute header
c0 7d 4c 96 CRC32 fingerprint
This response used the following parameter:
"VOkJxbRl1RmTxUk/WvJxBt" (without quotes)
"test vector" (without quotes)
2001:db8:1234:5678:11:2233:4455:6677 port 32853
01 01 00 48 Response type and message length
21 12 a4 42 Magic cookie
b7 e7 a7 01 }
bc 34 d6 86 } Transaction ID
fa 87 df ae }
80 22 00 0b SERVER attribute header
74 65 73 74 }
20 76 65 63 } UTF-8 server name
74 6f 72 20 }
00 20 00 14 XOR-MAPPED-ADDRESS attribute header
00 02 a1 47 Address family (IPv6) and xor'd mapped port number
01 13 a9 fa }
a5 d3 f1 79 } Xor'd mapped IPv6 address
bc 25 f4 b5 }
be d2 b9 d9 }
00 08 00 14 MESSAGE-INTEGRITY attribute header
a3 82 95 4e }
4b e6 7b f1 }
17 84 c9 7c } HMAC-SHA1 fingerprint
82 92 c2 75 }
bf e3 ed 41 }
80 28 00 04 FINGERPRINT attribute header
c8 fb 0b 4c CRC32 fingerprint
This request uses the following parameters:
"<U+30DE><U+30C8><U+30EA><U+30C3><U+30AF><U+30B9>"
(without quotes)
"The<U+00AD>M<U+00AA>tr<U+2168>"
(without quotes) before SASLprep processing
"f//499k954d6OL34oL9FSTvy64sA" (without quotes)
"example.org" (without quotes)
00 01 00 60 Request type and message length
21 12 a4 42 Magic cookie
78 ad 34 33 }
c6 ad 72 c0 } Transaction ID
29 da 41 2e }
00 06 00 12 USERNAME attribute header
e3 83 9e e3 }
83 88 e3 83 }
aa e3 83 83 } Username value (18 bytes) and padding (2 bytes)
e3 82 af e3 }
82 b9 00 00 }
00 15 00 1c NONCE attribute header
66 2f 2f 34 }
39 39 6b 39 }
35 34 64 36 }
4f 4c 33 34 } Nonce value
6f 4c 39 46 }
53 54 76 79 }
36 34 73 41 }
00 14 00 0b REALM attribute header
65 78 61 6d }
70 6c 65 2e } Realm value (11 bytes) and padding (1 byte)
6f 72 67 00 }
00 08 00 14 MESSAGE-INTEGRITY attribute header
f6 70 24 65 }
6d d6 4a 3e }
02 b8 e0 71 } HMAC-SHA1 fingerprint
2e 85 c9 a2 }
8c a8 96 66 }
There are no security considerations.
This document raises no IANA considerations.
The author would like to thank
Marc Petit-Huguenin, Philip Matthews and Dan Wing
for their inputs, and
Brian Korver, Alfred E. Heggestad and
Gustavo García
for their reviews.
const unsigned char req[] =
"\x00\x01\x00\x58"
"\x21\x12\xa4\x42"
"\xb7\xe7\xa7\x01\xbc\x34\xd6\x86\xfa\x87\xdf\xae"
"\x80\x30\x00\x10"
"STUN test client"
"\x00\x24\x00\x04"
"\x6e\x00\x01\xff"
"\x80\x29\x00\x08"
"\x93\x2f\xf9\xb1\x51\x26\x3b\x36"
"\x00\x06\x00\x09"
"\x65\x76\x74\x6a\x3a\x68\x36\x76\x59\x20\x20\x20"
"\x00\x08\x00\x14"
"\x3e\xf9\xbc\x22\x7b\x2b\x98\x0f\x4f\x5f\x90\x9b"
"\x60\x00\x3b\x91\xfa\xba\x42\x6b"
"\x80\x28\x00\x04"
"\x8c\xdd\x72\x38";
const unsigned char respv4[] =
"\x01\x01\x00\x3c"
"\x21\x12\xa4\x42"
"\xb7\xe7\xa7\x01\xbc\x34\xd6\x86\xfa\x87\xdf\xae"
"\x80\x22\x00\x0b"
"\x74\x65\x73\x74\x20\x76\x65\x63\x74\x6f\x72\x20"
"\x00\x20\x00\x08"
"\x00\x01\xa1\x47\xe1\x12\xa6\x43"
"\x00\x08\x00\x14"
"\x2b\x91\xf5\x99\xfd\x9e\x90\xc3\x8c\x74\x89\xf9"
"\x2a\xf9\xba\x53\xf0\x6b\xe7\xd7"
"\x80\x28\x00\x04"
"\xc0\x7d\x4c\x96";
const unsigned char respv6[] =
"\x01\x01\x00\x48"
"\x21\x12\xa4\x42"
"\xb7\xe7\xa7\x01\xbc\x34\xd6\x86\xfa\x87\xdf\xae"
"\x80\x22\x00\x0b"
"\x74\x65\x73\x74\x20\x76\x65\x63\x74\x6f\x72\x20"
"\x00\x20\x00\x14"
"\x00\x02\xa1\x47"
"\x01\x13\xa9\xfa\xa5\xd3\xf1\x79"
"\xbc\x25\xf4\xb5\xbe\xd2\xb9\xd9"
"\x00\x08\x00\x14"
"\xa3\x82\x95\x4e\x4b\xe6\x7b\xf1\x17\x84\xc9\x7c"
"\x82\x92\xc2\x75\xbf\xe3\xed\x41"
"\x80\x28\x00\x04"
"\xc8\xfb\x0b\x4c";
const unsigned char reqltc[] =
"\x00\x01\x00\x60"
"\x21\x12\xa4\x42"
"\x78\xad\x34\x33\xc6\xad\x72\xc0\x29\xda\x41\x2e"
"\x00\x06\x00\x12"
"\xe3\x83\x9e\xe3\x83\x88\xe3\x83\xaa\xe3\x83\x83"
"\xe3\x82\xaf\xe3\x82\xb9\x00\x00"
"\x00\x15\x00\x1c"
"\x66\x2f\x2f\x34\x39\x39\x6b\x39\x35\x34\x64\x36"
"\x4f\x4c\x33\x34\x6f\x4c\x39\x46\x53\x54\x76\x79"
"\x36\x34\x73\x41"
"\x00\x14\x00\x0b"
"\x65\x78\x61\x6d\x70\x6c\x65\x2e\x6f\x72\x67\x00"
"\x00\x08\x00\x14"
"\xf6\x70\x24\x65\x6d\xd6\x4a\x3e\x02\xb8\xe0\x71"
"\x2e\x85\xc9\xa2\x8c\xa8\x96\x66";