| RFC 9235 | TCP-AO Test Vectors | May 2022 |
| Touch & Kuusisaari | Informational | [Page] |
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: KDF_HMAC_SHA1 and HMAC- SHA-1-96, and KDF_AES_128_CMAC and AES-128-CMAC-96. The vectors also validate both whole TCP segments as well as segments whose options are excluded for middlebox traversal.¶
This document is not an Internet Standards Track specification; it is published for informational purposes.¶
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are candidates for any level of Internet Standard; see Section 2 of RFC 7841.¶
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc9235.¶
Copyright (c) 2022 IETF Trust and the persons identified as the document authors. All rights reserved.¶
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License.¶
This document provides test vectors to validate the correct implementation of the TCP Authentication Option (TCP-AO) [RFC5925] and its mandatory cryptographic algorithms defined in [RFC5926]. 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 options are ignored for middlebox traversal. It also includes both default key derivation functions (KDFs) and MAC generation algorithms [RFC5926] and lists common pitfalls of implementing the algorithms correctly.¶
The experimental extension to support NAT traversal [RFC6978] is not included in the provided test vectors.¶
This document provides test vectors from multiple implementations that have been validated against each other for interoperability.¶
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.¶
The following parameters are used throughout this suite of test vectors. The terms 'active' and 'passive' are used as defined for TCP [RFC0793].¶
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].¶
The following endpoint parameters are used on the active side of the TCP connection, i.e., the side that initiates the TCP SYN.¶
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.¶
No IP options are used in these test vectors.¶
All IPv4 packets use the following other parameters [RFC0791]: Differentiated Services Code Point (DSCP) = 111000 binary (CS7) as is typical for BGP, Explicit Congestion Notification (ECN) = 00 binary, set the Don't Fragment (DF) bit, and clear the More Fragments (MF) bit.¶
IPv4 uses a TTL of 255 decimal; IPv6 uses a hop limit of 255 decimal.¶
All IPv6 packets use the following other parameters [RFC8200]: traffic class = 0xe0 hexadecimal (DSCP = 111000 binary CS7, as is typical for BGP, with ECN = 00 binary) and no Extension Headers (EHs).¶
The SYN and SYN-ACK segments include Maximum Segment Size (MSS) [RFC0793], No Operation (NOP), Window Scale [RFC7323], Selective Acknowledgment (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 urgent (URG) pointers are zero [RFC0793]. All segments with data set the push (PSH) flag [RFC0793].¶
Each TCP connection below uses the Initial Sequence Numbers (ISNs) as indicated at the front of each corresponding section.¶
The SHA-1 KDF and MAC algorithms, KDF_HMAC_SHA1 and HMAC-SHA-1-96, are computed as specified for TCP-AO [RFC5926].¶
In the following sections, all values are indicated as 2-digit hexadecimal values with spacing per line representing the contents of 16 consecutive bytes, as is typical for data dumps. The IP/TCP data indicates the entire IP packet, including the TCP segment and its options (whether covered by TCP-AO or not, as indicated), including TCP-AO.¶
Client ISN = 0xfbfbab5a 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¶
Server ISN = 0x11c14261 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¶
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¶
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 MAC: a6 3f 0e cb bb 2e 63 5c 95 4d ea c7¶
Client ISN = 0xcb0efbee 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¶
Server ISN = 0xacd5b5e1 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 MAC: 09 30 6f 9a ce a6 3a 8c 68 cb 9a 70¶
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¶
Receive_other_traffic_key: b5 b2 89 6b b3 66 4e 81 76 b0 ed c6 e7 99 52 41 01 a8 30 7f 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¶
The AES-128 KDF and MAC algorithms, KDF_AES_128_CMAC and AES-128-CMAC-96, are computed as specified for TCP-AO [RFC5926].¶
In the following sections, all values are indicated as 2-digit hexadecimal values with spacing per line representing the contents of 16 consecutive bytes, as is typical for data dumps. The IP/TCP data indicates the entire IP packet, including the TCP segment and its options (whether covered by TCP-AO or not, as indicated), including TCP-AO.¶
Client ISN = 0x787a1ddf 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¶
Server ISN = 0xfadd6de9 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¶
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¶
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¶
Client ISN = 0x389bed71 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¶
Server ISN = 0xd3844a6f 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¶
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¶
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¶
The SHA-1 KDF and MAC algorithms, KDF_HMAC_SHA1 and HMAC-SHA-1-96, are computed as specified for TCP-AO [RFC5926].¶
Client ISN = 0x176a833f 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 MAC: 90 33 ec 3d 73 34 b6 4c 5e dd 03 9f¶
Server ISN = 0x3f51994b 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¶
Send_other_traffic_key: 1e d8 29 75 f4 ea 44 4c 61 58 0c 5b d9 0d bd 61 bb c9 1b 7e 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¶
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¶
Client ISN = 0x020c1e69 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¶
Server ISN = 0xeba3734d 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¶
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¶
Receive_other_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 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¶
The AES-128 KDF and MAC algorithms, KDF_AES_128_CMAC and AES-128-CMAC-96, are computed as specified for TCP-AO [RFC5926].¶
Client ISN = 0x193cccec 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¶
Server ISN = 0xa6744ecb 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¶
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¶
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¶
Client ISN = 0xb01da74a 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 MAC: 3d 45 b4 34 2d e8 bb 15 30 84 78 98¶
Server ISN = 0xa6246145 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¶
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 MAC: 29 0c f4 14 cc b4 7a 33 32 76 e7 f8¶
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¶
The following is a partial list of implementation errors that this set of test vectors is intended to validate.¶
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.¶
There is a separate parameter in the Master Key Tuple (MKT) [RFC5925] to ignore options; this document provides test vectors for both options-included and options-excluded cases.¶
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.¶
The Master_Key of "testvector" used here for test vector generation SHOULD NOT be used operationally.¶
This document has no IANA actions.¶
This work benefited from feedback from Russ Housley and Michael Scharf as well as discussions on the IETF TCPM email list and with the IESG.¶
This document was initially prepared using 2-Word-v2.0.template.dot.¶