Internet DRAFT - draft-touch-tcpm-ao-test-vectors
draft-touch-tcpm-ao-test-vectors
TCPM J. Touch
Internet Draft Independent consultant
Intended status: Informational J. Kuusisaari
Expires: June 2021 Infinera
December 23, 2020
TCP-AO Test Vectors
draft-touch-tcpm-ao-test-vectors-02.txt
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Abstract
This document provides test vectors to validate implementations of
the two mandatory authentication algorithms specified for the TCP
Authentication Option over both IPv4 and IPv6. This includes
validation of the key derivation function (KDF) based on a set of
test connection parameters as well as validation of the message
authentication code (MAC). Vectors are provided for both currently
required pairs of KDF and MAC algorithms: one based on SHA-1 and the
other on AES-128. The vectors also validate both whole TCP segments
as well as segments whose options are excluded for NAT traversal.
Table of Contents
1. Introduction...................................................3
2. Conventions used in this document..............................4
3. Input Test Vectors.............................................4
3.1. TCP Connection Parameters.................................4
3.1.1. TCP-AO parameters....................................4
3.1.2. Active (client) side parameters......................4
3.1.3. Passive (server) side parameters.....................5
3.1.4. Other IP fields and options..........................5
3.1.5. Other TCP fields and options.........................5
4. IPv4 SHA-1 Output Test Vectors.................................5
4.1. SHA-1 MAC (default - covers TCP options)..................6
4.1.1. Send (client) SYN (covers options)...................6
4.1.2. Receive (server) SYN-ACK (covers options)............6
4.1.3. Send (client) non-SYN (covers options)...............7
4.1.4. Receive (server) non-SYN (covers options)............7
4.2. SHA-1 MAC (omits TCP options).............................8
4.2.1. Send (client) SYN (omits options)....................8
4.2.2. Receive (server) SYN-ACK (omits options).............8
4.2.3. Send (client) non-SYN (omits options)................9
4.2.4. Receive (server) non-SYN (omits options).............9
5. IPv4 AES-128 Output Test Vectors..............................10
5.1. AES MAC (default - covers TCP options)...................10
5.1.1. Send (client) SYN (covers options)..................10
5.1.2. Receive (server) SYN-ACK (covers options)...........11
5.1.3. Send (client) non-SYN (covers options)..............11
5.1.4. Receive (server) non-SYN (covers options)...........12
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5.2. AES MAC (omits TCP options)..............................12
5.2.1. Send (client) SYN (omits options)...................12
5.2.2. Receive (server) SYN-ACK (omits options)............13
5.2.3. Send (client) non-SYN (omits options)...............13
5.2.4. Receive (server) non-SYN (omits options)............14
6. IPv6 SHA-1 Output Test Vectors................................14
6.1. SHA-1 MAC (default - covers TCP options).................14
6.1.1. Send (client) SYN (covers options)..................14
6.1.2. Receive (server) SYN-ACK (covers options)...........15
6.1.3. Send (client) non-SYN (covers options)..............15
6.1.4. Receive (server) non-SYN (covers options)...........16
6.2. SHA-1 MAC (omits TCP options)............................17
6.2.1. Send (client) SYN (omits options)...................17
6.2.2. Receive (server) SYN-ACK (omits options)............17
6.2.3. Send (client) non-SYN (omits options)...............18
6.2.4. Receive (server) non-SYN (omits options)............18
7. IPv6 AES-128 Output Test Vectors..............................19
7.1. AES MAC (default - covers TCP options)...................19
7.1.1. Send (client) SYN (covers options)..................19
7.1.2. Receive (server) SYN-ACK (covers options)...........20
7.1.3. Send (client) non-SYN (covers options)..............20
7.1.4. Receive (server) non-SYN (covers options)...........21
7.2. AES MAC (omits TCP options)..............................21
7.2.1. Send (client) SYN (omits options)...................21
7.2.2. Receive (server) SYN-ACK (omits options)............22
7.2.3. Send (client) non-SYN (omits options)...............22
7.2.4. Receive (server) non-SYN (omits options)............23
8. Observed Implementation Errors................................23
8.1. Algorithm issues.........................................23
8.2. Algorithm parameters.....................................24
8.3. String handling issues...................................24
8.4. Header coverage issues...................................24
9. Security Considerations.......................................24
10. IANA Considerations..........................................25
11. References...................................................25
11.1. Normative References....................................25
11.2. Informative References..................................25
12. Acknowledgments..............................................26
1. Introduction
This document provides test vectors to validate the correct
implementation of the TCP Authentication Option (TCP-AO) [RFC5925].
It includes the specification of all endpoint parameters to generate
the variety of TCP segments covered by different keys and MAC
coverage, i.e., both the default case and the variant where TCP
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options are ignored. It also includes both default key derivation
functions (KDFs) and MAC generation algorithms [RFC5926].
The experimental extension to support NAT traversal is not included
in the provided test vectors [RFC6978].
This document provides test vectors from an implementation.
2. Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
3. Input Test Vectors
3.1. TCP Connection Parameters
The following parameters are used throughout this suite of test
vectors. The terms 'active' and 'passive' are used as defined for
TCP [RFC793].
3.1.1. TCP-AO parameters
The following values are used for all exchanges. This suite does not
test key switchover. The KeyIDs are as indicated for TCP-AO
[RFC5925]. The Master Key is used to derive the traffic keys
[RFC5926].
Active (client) side KeyID: 61 (3D)
Passive (server) side KeyID: 84 (54)
Master_key: "testvector" (length = 10 bytes)
3.1.2. Active (client) side parameters
The following endpoint parameters are used on the active side of the
TCP connection, i.e., the side that initiates the TCP SYN.
For IPv4: 10.11.12.13
For IPv6: FD00::1
TCP port: (varies)
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3.1.3. Passive (server) side parameters
The following endpoint parameters are used for the passive side of
the TCP connection, i.e., the side that responds with a TCP SYN-ACK.
For IPv4: 172.27.28.29
For IPv6: FD00::2
TCP port = 179 (BGP)
3.1.4. Other IP fields and options
No IP options are used in these test vectors.
All IPv4 packets use the following other parameters [RFC791]: DSCP =
111000 (CS7) as is typical for BGP, ECN = 00, set DF, and clear MF.
IPv4 uses a TTL of 255; IPv6 uses a hopcount of 64.
All IPv6 use the following other parameters [RFC8200]: (TBD).
3.1.5. Other TCP fields and options
The SYN and SYN-ACK segments include MSS [RFC793], NOP, WindowScale
[RFC7323], SACK Permitted [RFC2018], TimeStamp [RFC7323], and TCP-AO
[RFC5925], in that order.
All other example segments include NOP, NOP, TimeStamp, and TCP-AO,
in that order.
All segment URG pointers are zero [RFC793]. All segments with data
set the PSH flag [RFC793].
4. IPv4 SHA-1 Output Test Vectors
SHA-1 is computed as specified for TCP-AO [RFC5926].
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4.1. SHA-1 MAC (default - covers TCP options)
4.1.1. Send (client) SYN (covers options)
Send_SYN_traffic_key:
6d 63 ef 1b 02 fe 15 09 d4 b1 40 27 07 fd 7b 04
16 ab b7 4f
IPv4/TCP:
45 e0 00 4c dd 0f 40 00 ff 06 bf 6b 0a 0b 0c 0d
ac 1b 1c 1d e9 d7 00 b3 fb fb ab 5a 00 00 00 00
e0 02 ff ff ca c4 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 00 15 5a b7 00 00 00 00 1d 10 3d 54
2e e4 37 c6 f8 ed e6 d7 c4 d6 02 e7
MAC:
2e e4 37 c6 f8 ed e6 d7 c4 d6 02 e7
4.1.2. Receive (server) SYN-ACK (covers options)
Receive_SYN_traffic_key:
d9 e2 17 e4 83 4a 80 ca 2f 3f d8 de 2e 41 b8 e6
79 7f ea 96
IPv4/TCP:
45 e0 00 4c 65 06 40 00 ff 06 37 75 ac 1b 1c 1d
0a 0b 0c 0d 00 b3 e9 d7 11 c1 42 61 fb fb ab 5b
e0 12 ff ff 37 76 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 84 a5 0b eb 00 15 5a b7 1d 10 54 3d
ee ab 0f e2 4c 30 10 81 51 16 b3 be
MAC:
ee ab 0f e2 4c 30 10 81 51 16 b3 be
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4.1.3. Send (client) non-SYN (covers options)
Send_other_traffic_key:
d2 e5 9c 65 ff c7 b1 a3 93 47 65 64 63 b7 0e dc
24 a1 3d 71
IPv4/TCP:
45 e0 00 87 36 a1 40 00 ff 06 65 9f 0a 0b 0c 0d
ac 1b 1c 1d e9 d7 00 b3 fb fb ab 5b 11 c1 42 62
c0 18 01 04 a1 62 00 00 01 01 08 0a 00 15 5a c1
84 a5 0b eb 1d 10 3d 54 70 64 cf 99 8c c6 c3 15
c2 c2 e2 bf ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da bf 00 b4 0a 0b 0c 0d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da bf 02 08 40
06 00 64 00 01 01 00
MAC:
70 64 cf 99 8c c6 c3 15 c2 c2 e2 bf
4.1.4. Receive (server) non-SYN (covers options)
Receive_other_traffic_key:
d9 e2 17 e4 83 4a 80 ca 2f 3f d8 de 2e 41 b8 e6
79 7f ea 96
IPv4/TCP:
45 e0 00 87 1f a9 40 00 ff 06 7c 97 ac 1b 1c 1d
0a 0b 0c 0d 00 b3 e9 d7 11 c1 42 62 fb fb ab 9e
c0 18 01 00 40 0c 00 00 01 01 08 0a 84 a5 0b f5
00 15 5a c1 1d 10 54 3d a6 3f 0e cb bb 2e 63 5c
95 4d ea c7 ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da c0 00 b4 ac 1b 1c 1d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da c0 02 08 40
06 00 64 00 01 01 00
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MAC:
a6 3f 0e cb bb 2e 63 5c 95 4d ea c7
4.2. SHA-1 MAC (omits TCP options)
4.2.1. Send (client) SYN (omits options)
Send_SYN_traffic_key:
30 ea a1 56 0c f0 be 57 da b5 c0 45 22 9f b1 0a
42 3c d7 ea
IPv4/TCP:
45 e0 00 4c 53 99 40 00 ff 06 48 e2 0a 0b 0c 0d
ac 1b 1c 1d ff 12 00 b3 cb 0e fb ee 00 00 00 00
e0 02 ff ff 54 1f 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 00 02 4c ce 00 00 00 00 1d 10 3d 54
80 af 3c fe b8 53 68 93 7b 8f 9e c2
MAC:
80 af 3c fe b8 53 68 93 7b 8f 9e c2
4.2.2. Receive (server) SYN-ACK (omits options)
Receive_SYN_traffic_key:
b5 b2 89 6b b3 66 4e 81 76 b0 ed c6 e7 99 52 41a
01 a8 30 7f
IPv4/TCP:
45 e0 00 4c 32 84 40 00 ff 06 69 f7 ac 1b 1c 1d
0a 0b 0c 0d 00 b3 ff 12 ac d5 b5 e1 cb 0e fb ef
e0 12 ff ff 38 8e 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 57 67 72 f3 00 02 4c ce 1d 10 54 3d
09 30 6f 9a ce a6 3a 8c 68 cb 9a 70
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MAC:
09 30 6f 9a ce a6 3a 8c 68 cb 9a 70
4.2.3. Send (client) non-SYN (omits options)
Send_other_traffic_key:
f3 db 17 93 d7 91 0e cd 80 6c 34 f1 55 ea 1f 00
34 59 53 e3
IPv4/TCP:
45 e0 00 87 a8 f5 40 00 ff 06 f3 4a 0a 0b 0c 0d
ac 1b 1c 1d ff 12 00 b3 cb 0e fb ef ac d5 b5 e2
c0 18 01 04 6c 45 00 00 01 01 08 0a 00 02 4c ce
57 67 72 f3 1d 10 3d 54 71 06 08 cc 69 6c 03 a2
71 c9 3a a5 ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da bf 00 b4 0a 0b 0c 0d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da bf 02 08 40
06 00 64 00 01 01 00
MAC:
71 06 08 cc 69 6c 03 a2 71 c9 3a a5
4.2.4. Receive (server) non-SYN (omits options)
Receive_other_traffic_key:
b5 b2 89 6b b3 66 4e 81 76 b0 ed c6 e7 99 52 41
01 a8 30 7f
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IPv4/TCP:
45 e0 00 87 54 37 40 00 ff 06 48 09 ac 1b 1c 1d
0a 0b 0c 0d 00 b3 ff 12 ac d5 b5 e2 cb 0e fc 32
c0 18 01 00 46 b6 00 00 01 01 08 0a 57 67 72 f3
00 02 4c ce 1d 10 54 3d 97 76 6e 48 ac 26 2d e9
ae 61 b4 f9 ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da c0 00 b4 ac 1b 1c 1d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da c0 02 08 40
06 00 64 00 01 01 00
MAC:
97 76 6e 48 ac 26 2d e9 ae 61 b4 f9
5. IPv4 AES-128 Output Test Vectors
AES-128 is computed as required by TCP-AO [RFC5926].
5.1. AES MAC (default - covers TCP options)
5.1.1. Send (client) SYN (covers options)
Send_SYN_traffic_key:
f5 b8 b3 d5 f3 4f db b6 eb 8d 4a b9 66 0e 60 e3
IP/TCP:
45 e0 00 4c 7b 9f 40 00 ff 06 20 dc 0a 0b 0c 0d
ac 1b 1c 1d c4 fa 00 b3 78 7a 1d df 00 00 00 00
e0 02 ff ff 5a 0f 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 00 01 7e d0 00 00 00 00 1d 10 3d 54
e4 77 e9 9c 80 40 76 54 98 e5 50 91
MAC:
e4 77 e9 9c 80 40 76 54 98 e5 50 91
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5.1.2. Receive (server) SYN-ACK (covers options)
Receive_SYN_traffic_key:
4b c7 57 1a 48 6f 32 64 bb d8 88 47 40 66 b4 b1
IPv4/TCP:
45 e0 00 4c 4b ad 40 00 ff 06 50 ce ac 1b 1c 1d
0a 0b 0c 0d 00 b3 c4 fa fa dd 6d e9 78 7a 1d e0
e0 12 ff ff f3 f2 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 93 f4 e9 e8 00 01 7e d0 1d 10 54 3d
d6 ad a7 bc 4c dd 53 6d 17 69 db 5f
MAC:
d6 ad a7 bc 4c dd 53 6d 17 69 db 5f
5.1.3. Send (client) non-SYN (covers options)
Send_other_traffic_key:
8c 8a e0 e8 37 1e c5 cb b9 7e a7 9d 90 41 83 91
IPv4/TCP:
45 e0 00 87 fb 4f 40 00 ff 06 a0 f0 0a 0b 0c 0d
ac 1b 1c 1d c4 fa 00 b3 78 7a 1d e0 fa dd 6d ea
c0 18 01 04 95 05 00 00 01 01 08 0a 00 01 7e d0
93 f4 e9 e8 1d 10 3d 54 77 41 27 42 fa 4d c4 33
ef f0 97 3e ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da bf 00 b4 0a 0b 0c 0d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da bf 02 08 40
06 00 64 00 01 01 00
MAC:
77 41 27 42 fa 4d c4 33 ef f0 97 3e
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5.1.4. Receive (server) non-SYN (covers options)
Receive_other_traffic_key:
4b c7 57 1a 48 6f 32 64 bb d8 88 47 40 66 b4 b1
IPv4/TCP:
45 e0 00 87 b9 14 40 00 ff 06 e3 2b ac 1b 1c 1d
0a 0b 0c 0d 00 b3 c4 fa fa dd 6d ea 78 7a 1e 23
c0 18 01 00 e7 db 00 00 01 01 08 0a 93 f4 e9 e8
00 01 7e d0 1d 10 54 3d f6 d9 65 a7 83 82 a7 48
45 f7 2d ac ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da c0 00 b4 ac 1b 1c 1d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da c0 02 08 40
06 00 64 00 01 01 00
MAC:
f6 d9 65 a7 83 82 a7 48 45 f7 2d ac
5.2. AES MAC (omits TCP options)
5.2.1. Send (client) SYN (omits options)
Send_SYN_traffic_key:
2c db ae 13 92 c4 94 49 fa 92 c4 50 97 35 d5 0e
IPv4/TCP:
45 e0 00 4c f2 2e 40 00 ff 06 aa 4c 0a 0b 0c 0d
ac 1b 1c 1d da 1c 00 b3 38 9b ed 71 00 00 00 00
e0 02 ff ff 70 bf 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a 00 01 85 e1 00 00 00 00 1d 10 3d 54
c4 4e 60 cb 31 f7 c0 b1 de 3d 27 49
MAC:
c4 4e 60 cb 31 f7 c0 b1 de 3d 27 49
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5.2.2. Receive (server) SYN-ACK (omits options)
Receive_SYN_traffic_key:
3c e6 7a 55 18 69 50 6b 63 47 b6 33 c5 0a 62 4a
IPv4/TCP:
45 e0 00 4c 6c c0 40 00 ff 06 2f bb ac 1b 1c 1d
0a 0b 0c 0d 00 b3 da 1c d3 84 4a 6f 38 9b ed 72
e0 12 ff ff e4 45 00 00 02 04 05 b4 01 03 03 08
04 02 08 0a ce 45 98 38 00 01 85 e1 1d 10 54 3d
3a 6a bb 20 7e 49 b1 be 71 36 db 90
MAC:
3a 6a bb 20 7e 49 b1 be 71 36 db 90
5.2.3. Send (client) non-SYN (omits options)
Send_other_traffic_key:
03 5b c4 00 a3 41 ff e5 95 f5 9f 58 00 50 06 ca
IPv4/TCP:
45 e0 00 87 ee 91 40 00 ff 06 ad ae 0a 0b 0c 0d
ac 1b 1c 1d da 1c 00 b3 38 9b ed 72 d3 84 4a 70
c0 18 01 04 88 51 00 00 01 01 08 0a 00 01 85 e1
ce 45 98 38 1d 10 3d 54 75 85 e9 e9 d5 c3 ec 85
7b 96 f8 37 ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da bf 00 b4 0a 0b 0c 0d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da bf 02 08 40
06 00 64 00 01 01 00
MAC:
75 85 e9 e9 d5 c3 ec 85 7b 96 f8 37
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5.2.4. Receive (server) non-SYN (omits options)
Receive_other_traffic_key:
3c e6 7a 55 18 69 50 6b 63 47 b6 33 c5 0a 62 4a
IPv4/TCP:
45 e0 00 87 6a 21 40 00 ff 06 32 1f ac 1b 1c 1d
0a 0b 0c 0d 00 b3 da 1c d3 84 4a 70 38 9b ed 72
c0 18 01 00 04 49 00 00 01 01 08 0a ce 45 98 38
00 01 85 e1 1d 10 54 3d 5c 04 0f d9 23 33 04 76
5c 09 82 f4 ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff 00 43 01 04 da c0 00 b4 ac 1b 1c 1d
26 02 06 01 04 00 01 00 01 02 02 80 00 02 02 02
00 02 02 42 00 02 06 41 04 00 00 da c0 02 08 40
06 00 64 00 01 01 00
MAC:
5c 04 0f d9 23 33 04 76 5c 09 82 f4
6. IPv6 SHA-1 Output Test Vectors
SHA-1 is computed as specified for TCP-AO [RFC5926].
6.1. SHA-1 MAC (default - covers TCP options)
6.1.1. Send (client) SYN (covers options)
Send_SYN_traffic_key:
62 5e c0 9d 57 58 36 ed c9 b6 42 84 18 bb f0 69
89 a3 61 bb
IPv6/TCP:
6e 08 91 dc 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 f7 e4 00 b3 17 6a 83 3f
00 00 00 00 e0 02 ff ff 47 21 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 00 41 d0 87 00 00 00 00
1d 10 3d 54 90 33 ec 3d 73 34 b6 4c 5e dd 03 9f
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MAC:
90 33 ec 3d 73 34 b6 4c 5e dd 03 9f
6.1.2. Receive (server) SYN-ACK (covers options)
Receive_SYN_traffic_key:
e4 a3 7a da 2a 0a fc a8 71 14 34 91 3f e1 38 c7
71 eb cb 4a
IPv6/TCP:
6e 01 00 9e 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 f7 e4 3f 51 99 4b
17 6a 83 40 e0 12 ff ff bf ec 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a bd 33 12 9b 00 41 d0 87
1d 10 54 3d f1 cb a3 46 c3 52 61 63 f7 1f 1f 55
MAC:
f1 cb a3 46 c3 52 61 63 f7 1f 1f 55
6.1.3. Send (client) non-SYN (covers options)
Send_other_traffic_key:
1e d8 29 75 f4 ea 44 4c 61 58 0c 5b d9 0d bd 61
bb c9 1b 7e
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IPv6/TCP:
6e 08 91 dc 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 f7 e4 00 b3 17 6a 83 40
3f 51 99 4c c0 18 01 00 32 9c 00 00 01 01 08 0a
00 41 d0 91 bd 33 12 9b 1d 10 3d 54 bf 08 05 fe
b4 ac 7b 16 3d 6f cd f2 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 79 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
bf 08 05 fe b4 ac 7b 16 3d 6f cd f2
6.1.4. Receive (server) non-SYN (covers options)
Receive_other_traffic_key:
e4 a3 7a da 2a 0a fc a8 71 14 34 91 3f e1 38 c7
71 eb cb 4a
IPv6/TCP:
6e 01 00 9e 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 f7 e4 3f 51 99 4c
17 6a 83 83 c0 18 01 00 ee 6e 00 00 01 01 08 0a
bd 33 12 a5 00 41 d0 91 1d 10 54 3d 6c 48 12 5c
11 33 5b ab 9a 07 a7 97 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 7a 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
6c 48 12 5c 11 33 5b ab 9a 07 a7 97
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6.2. SHA-1 MAC (omits TCP options)
6.2.1. Send (client) SYN (omits options)
Send_SYN_traffic_key:
31 a3 fa f6 9e ff ae 52 93 1b 7f 84 54 67 31 5c
27 0a 4e dc
IPv6/TCP:
6e 07 8f cd 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 c6 cd 00 b3 02 0c 1e 69
00 00 00 00 e0 02 ff ff a4 1a 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 00 9d b9 5b 00 00 00 00
1d 10 3d 54 88 56 98 b0 53 0e d4 d5 a1 5f 83 46
MAC:
88 56 98 b0 53 0e d4 d5 a1 5f 83 46
6.2.2. Receive (server) SYN-ACK (omits options)
Receive_SYN_traffic_key:
40 51 08 94 7f 99 65 75 e7 bd bc 26 d4 02 16 a2
c7 fa 91 bd
IPv6/TCP:
6e 0a 7e 1f 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 c6 cd eb a3 73 4d
02 0c 1e 6a e0 12 ff ff 77 4d 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 5e c9 9b 70 00 9d b9 5b
1d 10 54 3d 3c 54 6b ad 97 43 f1 2d f8 b8 01 0d
MAC:
3c 54 6b ad 97 43 f1 2d f8 b8 01 0d
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6.2.3. Send (client) non-SYN (omits options)
Send_other_traffic_key:
b3 4e ed 6a 93 96 a6 69 f1 c4 f4 f5 76 18 f3 65
6f 52 c7 ab
IPv6/TCP:
6e 07 8f cd 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 c6 cd 00 b3 02 0c 1e 6a
eb a3 73 4e c0 18 01 00 83 e6 00 00 01 01 08 0a
00 9d b9 65 5e c9 9b 70 1d 10 3d 54 48 bd 09 3b
19 24 e0 01 19 2f 5b f0 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 79 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
48 bd 09 3b 19 24 e0 01 19 2f 5b f0
6.2.4. Receive (server) non-SYN (omits options)
Receive_other_traffic_key:
40 51 08 94 7f 99 65 75 e7 bd bc 26 d4 02 16 a2
c7 fa 91 bd
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IPv6/TCP:
6e 0a 7e 1f 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 c6 cd eb a3 73 4e
02 0c 1e ad c0 18 01 00 71 6a 00 00 01 01 08 0a
5e c9 9b 7a 00 9d b9 65 1d 10 54 3d 55 9a 81 94
45 b4 fd e9 8d 9e 13 17 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 7a 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
55 9a 81 94 45 b4 fd e9 8d 9e 13 17
7. IPv6 AES-128 Output Test Vectors
AES-128 is computed as required by TCP-AO [RFC5926].
7.1. AES MAC (default - covers TCP options)
7.1.1. Send (client) SYN (covers options)
Send_SYN_traffic_key:
fa 5a 21 08 88 2d 39 d0 c7 19 29 17 5a b1 b7 b8
IP/TCP:
6e 04 a7 06 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 f8 5a 00 b3 19 3c cc ec
00 00 00 00 e0 02 ff ff de 5d 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 13 e4 ab 99 00 00 00 00
1d 10 3d 54 59 b5 88 10 74 81 ac 6d c3 92 70 40
MAC:
59 b5 88 10 74 81 ac 6d c3 92 70 40
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7.1.2. Receive (server) SYN-ACK (covers options)
Receive_SYN_traffic_key:
cf 1b 1e 22 5e 06 a6 36 16 76 4a 06 7b 46 f4 b1
IPv6/TCP:
6e 06 15 20 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 f8 5a a6 74 4e cb
19 3c cc ed e0 12 ff ff ea bb 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 71 da ab c8 13 e4 ab 99
1d 10 54 3d dc 28 43 a8 4e 78 a6 bc fd c5 ed 80
MAC:
dc 28 43 a8 4e 78 a6 bc fd c5 ed 80
7.1.3. Send (client) non-SYN (covers options)
Send_other_traffic_key:
61 74 c3 55 7a be d2 75 74 db a3 71 85 f0 03 00
IPv6/TCP:
6e 04 a7 06 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 f8 5a 00 b3 19 3c cc ed
a6 74 4e cc c0 18 01 00 32 80 00 00 01 01 08 0a
13 e4 ab a3 71 da ab c8 1d 10 3d 54 7b 6a 45 5c
0d 4f 5f 01 83 5b aa b3 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 79 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
7b 6a 45 5c 0d 4f 5f 01 83 5b aa b3
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7.1.4. Receive (server) non-SYN (covers options)
Receive_other_traffic_key:
cf 1b 1e 22 5e 06 a6 36 16 76 4a 06 7b 46 f4 b1
IPv6/TCP:
6e 06 15 20 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 f8 5a a6 74 4e cc
19 3c cd 30 c0 18 01 00 52 f4 00 00 01 01 08 0a
71 da ab d3 13 e4 ab a3 1d 10 54 3d c1 06 9b 7d
fd 3d 69 3a 6d f3 f2 89 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 7a 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
c1 06 9b 7d fd 3d 69 3a 6d f3 f2 89
7.2. AES MAC (omits TCP options)
7.2.1. Send (client) SYN (omits options)
Send_SYN_traffic_key:
a9 4f 51 12 63 e4 09 3d 35 dd 81 8c 13 bb bf 53
IPv6/TCP:
6e 09 3d 76 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 f2 88 00 b3 b0 1d a7 4a
00 00 00 00 e0 02 ff ff 75 ff 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 14 27 5b 3b 00 00 00 00
1d 10 3d 54 3d 45 b4 34 2d e8 bb 15 30 84 78 98
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MAC:
3d 45 b4 34 2d e8 bb 15 30 84 78 98
7.2.2. Receive (server) SYN-ACK (omits options)
Receive_SYN_traffic_key:
92 de a5 bb c7 8b 1d 9f 5b 29 52 e9 cd 30 64 2a
IPv6/TCP:
6e 0c 60 0a 00 38 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 f2 88 a6 24 61 45
b0 1d a7 4b e0 12 ff ff a7 0c 00 00 02 04 05 a0
01 03 03 08 04 02 08 0a 17 82 24 5b 14 27 5b 3b
1d 10 54 3d 1d 01 f6 c8 7c 6f 93 ac ff a9 d4 b5
MAC:
1d 01 f6 c8 7c 6f 93 ac ff a9 d4 b5
7.2.3. Send (client) non-SYN (omits options)
Send_other_traffic_key:
4f b2 08 6e 40 2c 67 90 79 ed 65 d4 bf 97 69 3d
IPv6/TCP:
6e 09 3d 76 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 f2 88 00 b3 b0 1d a7 4b
a6 24 61 46 c0 18 01 00 c3 6d 00 00 01 01 08 0a
14 27 5b 4f 17 82 24 5b 1d 10 3d 54 29 0c f4 14
cc b4 7a 33 32 76 e7 f8 ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 79 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
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MAC:
29 0c f4 14 cc b4 7a 33 32 76 e7 f8
7.2.4. Receive (server) non-SYN (omits options)
Receive_other_traffic_key:
92 de a5 bb c7 8b 1d 9f 5b 29 52 e9 cd 30 64 2a
IPv6/TCP:
6e 0c 60 0a 00 73 06 40 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 02 fd 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01 00 b3 f2 88 a6 24 61 46
b0 1d a7 8e c0 18 01 00 34 51 00 00 01 01 08 0a
17 82 24 65 14 27 5b 4f 1d 10 54 3d 99 51 5f fc
d5 40 34 99 f6 19 fd 1b ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff 00 43 01 04 fd e8 00 b4
01 01 01 7a 26 02 06 01 04 00 01 00 01 02 02 80
00 02 02 02 00 02 02 42 00 02 06 41 04 00 00 fd
e8 02 08 40 06 00 64 00 01 01 00
MAC:
99 51 5f fc d5 40 34 99 f6 19 fd 1b
8. Observed Implementation Errors
The following is a partial list of implementation errors that this
set of test vectors is intended to validate.
8.1. Algorithm issues
o Underlying implementation of HMAC SHA1 or AES128 CMAC does not
pass their corresponding test vectors [RFC2202] [RFC4493]
o SNE algorithm does not consider corner cases (the pseudocode in
[RFC5925] was not intended as complete, as discussed in [To20])
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8.2. Algorithm parameters
o KDF context length is incorrect, e.g. it does not include TCP
header length + payload length (it should, per 5.2 of TCP-AO
[RFC5925])
o KDF calculation does not start from counter i = 1 (it should, per
Sec. 3.1.1 of the TCP-AO crypto algorithms [RFC5926])
o KDF calculation does not include output length in bits, contained
in two bytes in network byte order (it should, per Sec. 3.1.1 of
the TCP-AO crypto algorithms [RFC5926])
o KDF uses keys generated from current TCP segment sequence numbers
(KDF should use only local and remote ISNs or zero, as indicated
in Sec. 5.2 of TCP-AO [RFC5925])
8.3. String handling issues
The strings indicated in TCP-AO and its algorithms are indicated as
a sequence of bytes of known length. In some implementations, string
lengths are indicated by a terminal value (e.g., zero in C). This
terminal value is not included as part of the string for
calculations.
o Password includes the last zero-byte (it should not)
o Label "TCP-AO" includes the last zero byte (it should not)
8.4. Header coverage issues
o TCP checksum and/or MAC is not zeroed properly before calculation
(both should be)
o TCP header is not included to the MAC calculation (it should be)
o TCP options are not included to the MAC calculation by default
(there is a separate parameter in the master key tuple to ignore
options; this document provides test vectors for both options-
included and options-excluded cases)
9. Security Considerations
This document is intended to assist in the validation of
implementations of TCP-AO, to further enable its more widespread use
as a security mechanism to authenticate not only TCP payload
contents but the TCP headers and protocol.
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The master_key of "testvector" used here for test vector generation
SHOULD NOT be used operationally.
10. IANA Considerations
This document contains no IANA issues. This section should be
removed upon publication as an RFC.
11. References
11.1. Normative References
[RFC791] Postel, J., "Internet Protocol," RFC 791, Sept. 1981.
[RFC793] Postel, J., "Transmission Control Protocol," RFC 793,
September 1981.
[RFC2018] Mathis, M., J. Mahdavi, S. Floyd, A. Romanow, "TCP
Selective Acknowledgment Options," RFC 2018, Oct. 1996.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels," BCP 14, RFC 2119, March 1997.
[RFC5925] Touch, J., A. Mankin, R. Bonica, "The TCP Authentication
Option," RFC 5925, June 2010.
[RFC5926] Lebovitz, G., and E. Rescorla, "Cryptographic Algorithms
for the TCP Authentication Option (TCP-AO)," RFC 5925,
June 2010.
[RFC6978] Touch, J., "A TCP Authentication Option Extension for NAT
Traversal," RFC 6978, July 2013.
[RFC7323] Borman, D., B. Braden, V. Jacobson, R. Scheffenegger, Ed.,
"TCP Extensions for High Performance," RFC 7323, Sept.
2014.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words," RFC 2119, May 2017.
[RFC8200] Deering, S., R. Hinden, "Internet Protocol Version 6
(IPv6) Specification," RFC 8200, Jul. 2017.
11.2. Informative References
[RFC2202] Cheng, P., and R. Glenn, "Test Cases for HMAC-MD5 and
HMAC-SHA-1," RFC 2202, Sept. 1997.
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[RFC4493] Song, JH, R. Poovendran, J. Lee, T. Iwata, "The AES-CMAC
Algorithm," RFC 4493, June 2006.
[To20] Touch, J., "Sequence Number Extension for Windowed
Protocols," draft-tsvwg-touch-sne, Jun. 2020.
12. Acknowledgments
(TBD)
This document was prepared using 2-Word-v2.0.template.dot.
Authors' Addresses
Joe Touch
Manhattan Beach, CA 90266 USA
Phone: +1 (310) 560-0334
Email: touch@strayalpha.com
Juhamatti Kuusisaari
Infinera Corporation
Sinimaentie 6c
FI-02630 Espoo, Finland
Email: jkuusisaari@infinera.com
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