<?xml version='1.0' encoding='utf-8'?> version="1.0" encoding="UTF-8"?>
<!DOCTYPE rfc SYSTEM "rfc2629.dtd" [
  <!ENTITY RFC0791 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.0791.xml"> nbsp    "&#160;">
  <!ENTITY RFC0793 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.0793.xml"> zwsp   "&#8203;">
  <!ENTITY RFC2018 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2018.xml"> nbhy   "&#8209;">
  <!ENTITY RFC2119 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2119.xml">
<!ENTITY RFC5925 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.5925.xml">
<!ENTITY RFC5926 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.5926.xml">
<!ENTITY RFC6978 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.6978.xml">
<!ENTITY RFC7323 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.7323.xml">
<!ENTITY RFC8174 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.8174.xml">
<!ENTITY RFC8200 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.8200.xml">
<!ENTITY RFC2202 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2202.xml">
<!ENTITY RFC4493 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.4493.xml">
<!ENTITY RFC9187 SYSTEM "https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.9187.xml"> wj     "&#8288;">
]>

<rfc submissionType="IETF" xmlns:xi="http://www.w3.org/2001/XInclude" docName="draft-ietf-tcpm-ao-test-vectors-09" number="9235" submissionType="IETF" category="info" ipr="trust200902"> consensus="true" ipr="trust200902" obsoletes=""
updates="" xml:lang="en" symRefs="true" sortRefs="true" tocInclude="true" version="3">

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  <!-- Generated by id2xml 1.5.0 on 2022-03-28T23:00:23Z -->
	<?rfc strict="yes"?>
	<?rfc compact="yes"?>
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  <front>
	<title>TCP-AO

    <title abbrev="TCP-AO Test Vectors">TCP Authentication Option (TCP-AO) Test Vectors</title>
    <seriesInfo name="RFC" value="9235"/>
    <author initials="J." surname="Touch" fullname="Joe Touch">
      <organization abbrev="Independent consultant"></organization>
	  <address><postal>
	    <street></street> Consultant"/>
      <address>
        <postal>
          <street/>
          <city>Manhattan Beach</city>
          <region>CA</region>
          <code>90266</code>
	    <country>USA</country>
          <country>United States of America</country>
        </postal>
        <phone>+1 (310) 560-0334</phone>
        <email>touch@strayalpha.com</email>
      </address>
    </author>
    <author initials="J." surname="Kuusisaari" fullname="Juhamatti Kuusisaari">
      <organization abbrev="Infinera">Infinera Corporation</organization>
	<address><postal><street>Sinimaentie
      <address>
        <postal>
          <street>Sinimaentie 6c</street>
          <city>Espoo</city>
	<code>FI-02630</code>
          <code>02630</code>
          <country>Finland</country>
        </postal>
        <email>jkuusisaari@infinera.com</email>
      </address>
    </author>
    <date year="2022" month="March"/> month="May"/>
    <area>TSV</area>
    <workgroup>TCPM</workgroup>

<!-- [rfced] Please insert any keywords (beyond those that appear in the title) for use on https://www.rfc-editor.org/search. -->

<keyword>example</keyword>

	<abstract><t>

    <keyword>TCP</keyword>
    <keyword>authentication</keyword>
    <keyword>option</keyword>
    <keyword>test vector</keyword>

    <abstract>
      <t>
   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.</t>
    </abstract>
  </front>
  <middle>
    <section title="Introduction" anchor="sect-1"><t> anchor="sect-1" numbered="true" toc="default">
      <name>Introduction</name>
      <t>
   This document provides test vectors to validate the correct
   implementation of the TCP Authentication Option (TCP-AO) <xref target="RFC5925"/> target="RFC5925" format="default"/>
   and its mandatory cryptographic algorithms defined in <xref target="RFC5926"/>. target="RFC5926" format="default"/>. 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 <xref target="RFC5926"/> target="RFC5926" format="default"/> and lists common pitfalls of implementing the
   algorithms correctly.</t>
      <t>
   The experimental extension to support NAT traversal <xref target="RFC6978"/> target="RFC6978" format="default"/> is not
   included in the provided test vectors.</t>
      <t>
   This document provides test vectors from multiple implementations
   that have been validated against each other for interoperability.</t>
    </section>
    <section title="Conventions used anchor="sect-2" numbered="true" toc="default">
      <name>Conventions Used in this document" anchor="sect-2"><t> This Document</name>
              <t>
    The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", "<bcp14>MUST</bcp14>", "<bcp14>MUST NOT</bcp14>", "<bcp14>REQUIRED</bcp14>", "<bcp14>SHALL</bcp14>", "<bcp14>SHALL
    NOT</bcp14>", "<bcp14>SHOULD</bcp14>", "<bcp14>SHOULD NOT</bcp14>", "<bcp14>RECOMMENDED</bcp14>", "<bcp14>NOT RECOMMENDED</bcp14>",
    "<bcp14>MAY</bcp14>", and
   "OPTIONAL" "<bcp14>OPTIONAL</bcp14>" in this document are to be interpreted as
    described in
   BCP 14 BCP&nbsp;14 <xref target="RFC2119"/> <xref target="RFC8174"/>
    when, and only when, they appear in all capitals, as shown here.</t> here.
        </t>
    </section>
    <section title="Input anchor="sect-3" numbered="true" toc="default">
      <name>Input Test Vectors" anchor="sect-3"><section title="TCP Vectors</name>
      <section anchor="sect-3.1" numbered="true" toc="default">
        <name>TCP Connection Parameters" anchor="sect-3.1"><t> Parameters</name>
        <t>
   The following parameters are used throughout this suite of test
   vectors. The terms 'active' and 'passive' are used as defined for
   TCP <xref target="RFC0793"/>.</t> target="RFC0793" format="default"/>.</t>
        <section title="TCP-AO parameters" anchor="sect-3.1.1"><t> anchor="sect-3.1.1" numbered="true" toc="default">
          <name>TCP-AO Parameters</name>
          <t>
   The following values are used for all exchanges. This suite does not
   test key switchover. The KeyIDs are as indicated for TCP-AO
   <xref target="RFC5925"/>. target="RFC5925" format="default"/>. The Master_Key is used to derive the traffic keys
   <xref target="RFC5926"/>.

   <list>

     <t>Active target="RFC5926" format="default"/>.

          </t>
          <ul empty="true" spacing="normal">
            <li>Active (client) side KeyID: 61 decimal (0x3d hexadecimal)</t>

     <t>Passive hexadecimal)</li>
            <li>Passive (server) side KeyID: 84 decimal (0x54 hexadecimal)</t>

     <t>Master_Key: hexadecimal)</li>
            <li>Master_Key: "testvector" (length = 10 bytes)</t>

   </list>
 </t> bytes)</li>
          </ul>
        </section>
        <section title="Active (client) side parameters" anchor="sect-3.1.2"><t> anchor="sect-3.1.2" numbered="true" toc="default">
          <name>Active (Client) Side Parameters</name>
          <t>
   The following endpoint parameters are used on the active side of the
   TCP connection, i.e., the side that initiates the TCP SYN.

   <list>

      <t>For

          </t>
          <ul empty="true" spacing="normal">
            <li>For IPv4: 10.11.12.13 (dotted decimal)</t>

      <t>For decimal)</li>
            <li>For IPv6: fd00::1 (IPv6 hexadecimal) </t>

      <t>TCP </li>
            <li>TCP port: (varies) </t>

   </list>
 </t> </li>
          </ul>
        </section>
        <section title="Passive (server) side parameters" anchor="sect-3.1.3"><t> anchor="sect-3.1.3" numbered="true" toc="default">
          <name>Passive (Server) Side Parameters</name>
          <t>
   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.

   <list>

     <t>For

          </t>
          <ul empty="true" spacing="normal">
            <li>For IPv4: 172.27.28.29 (dotted decimal)</t>

     <t>For decimal)</li>
            <li>For IPv6: fd00::2 (IPv6 hexadecimal)</t>

     <t>TCP hexadecimal)</li>
            <li>TCP port = 179 decimal (BGP)</t>

   </list>
 </t> (BGP)</li>
          </ul>
        </section>
        <section title="Other anchor="sect-3.1.4" numbered="true" toc="default">
          <name>Other IP fields Fields and options" anchor="sect-3.1.4"><t> Options</name>
          <t>
	  No IP options are used in these test vectors.</t>
          <t>
  All IPv4 packets use the following other parameters <xref target="RFC0791"/>: DSCP
  Differentiated Services Code Point (DSCP) = 111000 binary (CS7) as is
  typical for BGP, ECN Explicit Congestion Notification (ECN) = 00 binary,
  set DF, the Don't Fragment (DF) bit, and clear MF.</t> the More Fragments (MF) bit.
	  </t>
          <t>
   IPv4 uses a TTL of 255 decimal; IPv6 uses a hop limit of 255
   decimal.</t>
          <t>
   All IPv6 packets use the following other parameters <xref target="RFC8200"/>: target="RFC8200" format="default"/>:
   traffic class = 0xe0 hexadecimal (DSCP = 111000 binary CS7, as is
   typical for BGP, with ECN = 00 binary) and no EHs.</t> Extension Headers (EHs).</t>
        </section>
        <section title="Other anchor="sect-3.1.5" numbered="true" toc="default">
          <name>Other TCP fields Fields and options" anchor="sect-3.1.5"><t> Options</name>
          <t>
   The SYN and SYN-ACK segments include MSS Maximum Segment Size (MSS) <xref target="RFC0793"/>, NOP, WindowScale target="RFC0793" format="default"/>, No Operation (NOP), Window Scale
   <xref target="RFC7323"/>, SACK Permitted target="RFC7323" format="default"/>, Selective Acknowledgment (SACK) permitted <xref target="RFC2018"/>, TimeStamp target="RFC2018" format="default"/>, Timestamp <xref target="RFC7323"/>, target="RFC7323" format="default"/>, and TCP-AO
   <xref target="RFC5925"/>, target="RFC5925" format="default"/>, in that order.</t>
          <t>
   All other example segments include NOP, NOP, TimeStamp, Timestamp, and TCP-AO,
   in that order.</t>
          <t>
   All segment URG urgent (URG) pointers are zero <xref target="RFC0793"/>. target="RFC0793" format="default"/>. All segments with data
   set the PSH push (PSH) flag <xref target="RFC0793"/>.</t> target="RFC0793" format="default"/>.</t>
          <t>
   Each TCP connection below uses the Initial Sequence Numbers (ISNs)
   as indicated at the front of each corresponding section.</t>
        </section>
      </section>
    </section>
    <section title="IPv4 anchor="sect-4" numbered="true" toc="default">
      <name>IPv4 SHA-1 Output Test Vectors" anchor="sect-4"><t> Vectors</name>
      <t>
   The SHA-1 KDF and MAC algorithms, KDF_HMAC_SHA1 and HMAC-SHA-1-96,
   are computed as specified for TCP-AO <xref target="RFC5926"/>.</t> target="RFC5926" format="default"/>.</t>
      <t>
   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.</t>
      <section title="HMAC-SHA-1-96 (default anchor="sect-4.1" numbered="true" toc="default">
        <name>HMAC-SHA-1-96 (Default - covers Covers TCP options)" anchor="sect-4.1"><section title="Send (client) Options)</name>
        <section anchor="sect-4.1.1" numbered="true" toc="default">
          <name>Send (Client) SYN (covers options)" anchor="sect-4.1.1">

<figure><artwork><![CDATA[ (Covers Options)</name>

          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-4.1.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (covers options)" anchor="sect-4.1.2">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (covers options)" anchor="sect-4.1.3">

<figure><artwork><![CDATA[ anchor="sect-4.1.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (covers options)" anchor="sect-4.1.4">

<figure><artwork><![CDATA[ anchor="sect-4.1.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
      <section title="HMAC-SHA-1-96 (omits anchor="sect-4.2" numbered="true" toc="default">
        <name>HMAC-SHA-1-96 (Omits TCP options)" anchor="sect-4.2"><section title="Send (client) Options)</name>
        <section anchor="sect-4.2.1" numbered="true" toc="default">
          <name>Send (Client) SYN (omits options)" anchor="sect-4.2.1">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-4.2.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (omits options)" anchor="sect-4.2.2">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (omits options)" anchor="sect-4.2.3">

<figure><artwork><![CDATA[ anchor="sect-4.2.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (omits options)" anchor="sect-4.2.4">

<figure><artwork><![CDATA[ anchor="sect-4.2.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
    </section>
    <section title="IPv4 anchor="sect-5" numbered="true" toc="default">
      <name>IPv4 AES-128 Output Test Vectors" anchor="sect-5"><t> Vectors</name>
      <t>
   The AES-128 KDF and MAC algorithms, KDF_AES_128_CMAC and AES-128-
   CMAC-96, AES-128-CMAC-96, are computed as specified for TCP-AO <xref target="RFC5926"/>.</t> target="RFC5926" format="default"/>.</t>
      <t>
   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.</t>
      <section title="AES-128-CMAC-96 (default anchor="sect-5.1" numbered="true" toc="default">
        <name>AES-128-CMAC-96 (Default - covers Covers TCP options)" anchor="sect-5.1"><section title="Send (client) Options)</name>
        <section anchor="sect-5.1.1" numbered="true" toc="default">
          <name>Send (Client) SYN (covers options)" anchor="sect-5.1.1">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-5.1.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (covers options)" anchor="sect-5.1.2">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (covers options)" anchor="sect-5.1.3">

<figure><artwork><![CDATA[ anchor="sect-5.1.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (covers options)" anchor="sect-5.1.4">

<figure><artwork><![CDATA[ anchor="sect-5.1.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
      <section title="AES-128-CMAC-96 (omits anchor="sect-5.2" numbered="true" toc="default">
        <name>AES-128-CMAC-96 (Omits TCP options)" anchor="sect-5.2"><section title="Send (client) Options)</name>
        <section anchor="sect-5.2.1" numbered="true" toc="default">
          <name>Send (Client) SYN (omits options)" anchor="sect-5.2.1">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-5.2.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (omits options)" anchor="sect-5.2.2">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (omits options)" anchor="sect-5.2.3">

<figure><artwork><![CDATA[ anchor="sect-5.2.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (omits options)" anchor="sect-5.2.4">

<figure><artwork><![CDATA[ anchor="sect-5.2.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
    </section>
    <section title="IPv6 anchor="sect-6" numbered="true" toc="default">
      <name>IPv6 SHA-1 Output Test Vectors" anchor="sect-6"><t> Vectors</name>
      <t keepWithNext="true">
   The SHA-1 KDF and MAC algorithms, KDF_HMAC_SHA1 and HMAC-SHA-1-96,
   are computed as specified for TCP-AO <xref target="RFC5926"/>.</t> target="RFC5926" format="default"/>.</t>
      <section title="HMAC-SHA-1-96 (default anchor="sect-6.1" numbered="true" toc="default">
        <name>HMAC-SHA-1-96 (Default - covers Covers TCP options)" anchor="sect-6.1"><section title="Send (client) Options)</name>
        <section anchor="sect-6.1.1" numbered="true" toc="default">
          <name>Send (Client) SYN (covers options)" anchor="sect-6.1.1">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-6.1.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (covers options)" anchor="sect-6.1.2">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (covers options)" anchor="sect-6.1.3">

<figure><artwork><![CDATA[ anchor="sect-6.1.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (covers options)" anchor="sect-6.1.4">

<figure><artwork><![CDATA[ anchor="sect-6.1.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
      <section title="HMAC-SHA-1-96 (omits anchor="sect-6.2" numbered="true" toc="default">
        <name>HMAC-SHA-1-96 (Omits TCP options)" anchor="sect-6.2"><section title="Send (client) Options)</name>
        <section anchor="sect-6.2.1" numbered="true" toc="default">
          <name>Send (Client) SYN (omits options)" anchor="sect-6.2.1">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-6.2.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (omits options)" anchor="sect-6.2.2">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (omits options)" anchor="sect-6.2.3">

<figure><artwork><![CDATA[ anchor="sect-6.2.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (omits options)" anchor="sect-6.2.4">

<figure><artwork><![CDATA[ anchor="sect-6.2.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
    </section>
    <section title="IPv6 anchor="sect-7" numbered="true" toc="default">
      <name>IPv6 AES-128 Output Test Vectors" anchor="sect-7"><t> Vectors</name>
      <t keepWithNext="true">
   The AES-128 KDF and MAC algorithms, KDF_AES_128_CMAC and AES-128-
   CMAC-96, AES-128-CMAC-96, are computed as specified for TCP-AO <xref target="RFC5926"/>.</t> target="RFC5926" format="default"/>.</t>
      <section title="AES-128-CMAC-96 (default anchor="sect-7.1" numbered="true" toc="default">
        <name>AES-128-CMAC-96 (Default - covers Covers TCP options)" anchor="sect-7.1"><section title="Send (client) Options)</name>
        <section anchor="sect-7.1.1" numbered="true" toc="default">
          <name>Send (Client) SYN (covers options)" anchor="sect-7.1.1">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-7.1.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (covers options)" anchor="sect-7.1.2">

<figure><artwork><![CDATA[ (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (covers options)" anchor="sect-7.1.3">

<figure><artwork><![CDATA[ anchor="sect-7.1.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (covers options)" anchor="sect-7.1.4">

<figure><artwork><![CDATA[ anchor="sect-7.1.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Covers Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
      <section title="AES-128-CMAC-96 (omits anchor="sect-7.2" numbered="true" toc="default">
        <name>AES-128-CMAC-96 (Omits TCP options)" anchor="sect-7.2"><section title="Send (client) Options)</name>
        <section anchor="sect-7.2.1" numbered="true" toc="default">
          <name>Send (Client) SYN (omits options)" anchor="sect-7.2.1">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) anchor="sect-7.2.2" numbered="true" toc="default">
          <name>Receive (Server) SYN-ACK (omits options)" anchor="sect-7.2.2">

<figure><artwork><![CDATA[ (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Send (client) non-SYN (omits options)" anchor="sect-7.2.3">

<figure><artwork><![CDATA[ anchor="sect-7.2.3" numbered="true" toc="default">
          <name>Send (Client) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
        <section title="Receive (server) non-SYN (omits options)" anchor="sect-7.2.4">

<figure><artwork><![CDATA[ anchor="sect-7.2.4" numbered="true" toc="default">
          <name>Receive (Server) Non-SYN (Omits Options)</name>
          <sourcecode type="tcp-ao-test-vectors"><![CDATA[
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
]]></artwork></figure>
]]></sourcecode>
        </section>
      </section>
    </section>
    <section title="Observed anchor="sect-8" numbered="true" toc="default">
      <name>Observed Implementation Errors" anchor="sect-8"><t> Errors</name>
      <t keepWithNext="true">
   The following is a partial list of implementation errors that this
   set of test vectors is intended to validate.</t>
      <section title="Algorithm issues" anchor="sect-8.1"><t><list style="symbols"><t>Underlying anchor="sect-8.1" numbered="true" toc="default">
        <name>Algorithm Issues</name>
        <ul spacing="normal">
          <li>The underlying implementation of HMAC-SHA-1-96 or AES-128-CMAC-96
      does not pass their corresponding test vectors <xref target="RFC2202"/> target="RFC2202" format="default"/>
            <xref target="RFC4493"/></t>

	<t>The target="RFC4493" format="default"/>.</li>
          <li>The SNE algorithm does not consider corner cases, possibly
      because the pseudocode in <xref target="RFC5925"/> target="RFC5925" format="default"/> was not intended as complete,
      as discussed in <xref target="RFC9187"/>, target="RFC9187" format="default"/>, the latter of which includes its own
      validation sequence.</t>

	</list>
	</t> sequence.</li>
        </ul>
      </section>
      <section title="Algorithm parameters" anchor="sect-8.2"><t><list style="symbols"><t>KDF anchor="sect-8.2" numbered="true" toc="default">
        <name>Algorithm Parameters</name>
        <ul spacing="normal">
          <li>KDF context length is incorrect, e.g., it does not include TCP
      header length + payload length (it should, per 5.2 of TCP-AO
      <xref target="RFC5925"/>)</t>

	<t>KDF target="RFC5925" section="5.2" sectionFormat="of">TCP-AO</xref>).</li>
          <li>KDF calculation does not start from counter i = 1 (it should, per
      Sec. 3.1.1 of the TCP-AO crypto algorithms
      <xref target="RFC5926"/>)</t>

	<t>KDF target="RFC5926" sectionFormat="of" section="3.1.1">TCP-AO crypto algorithms</xref>).</li>
          <li>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 <xref target="RFC5926" sectionFormat="of" section="3.1.1">the TCP-AO crypto algorithms <xref target="RFC5926"/>)</t>

	<t>KDF algorithms</xref>).</li>
          <li>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 <xref target="RFC5925"/>)</t>

	</list>
	</t> target="RFC5925" sectionFormat="of" section ="5.2">TCP-AO</xref>).</li>
        </ul>
      </section>
      <section title="String handling issues" anchor="sect-8.3"><t> anchor="sect-8.3" numbered="true" toc="default">
        <name>String Handling Issues</name>
        <t>
   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.</t>

	<t><list style="symbols"><t>Password
        <ul spacing="normal">
          <li>The password includes the last zero-byte (it should not)</t>

	<t>Label not).</li>
          <li>The label "TCP-AO" includes the last zero byte (it should not)</t>

	</list>
	</t> not).</li>
        </ul>
      </section>
      <section title="Header coverage issues" anchor="sect-8.4"><t><list style="symbols"><t>TCP anchor="sect-8.4" numbered="true" toc="default">
        <name>Header Coverage Issues</name>
        <ul spacing="normal">
          <li>TCP checksum and/or MAC is not zeroed properly before calculation
      (both should be)</t>

	<t>TCP be).</li>
          <li>TCP header is not included in the MAC calculation (it should be)</t>

	<t>TCP be).</li>
          <li>TCP options are not included in the MAC calculation by default.</t>

	</list>
	</t> default.</li>
        </ul>
        <t>
   There is a separate parameter in the Master Key Tuple (MKT)
   <xref target="RFC5925"/> target="RFC5925" format="default"/> to ignore options; this document provides test vectors for
   both options-included and options-excluded cases.</t>
      </section>
    </section>
    <section title="Security Considerations" anchor="sect-9"><t> anchor="sect-9" numbered="true" toc="default">
      <name>Security Considerations</name>
      <t>
   This document is intended to assist in the validation of
   implementations of TCP-AO, 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.</t>
      <t>
   The Master_Key of "testvector" used here for test vector generation
   SHOULD NOT
   <bcp14>SHOULD NOT</bcp14> be used operationally.</t>
    </section>
    <section title="IANA Considerations" anchor="sect-10"><t>
   This anchor="sect-10" numbered="true" toc="default">
      <name>IANA Considerations</name>
      <t>This document contains has no IANA issues. This section should be
   removed upon publication as an RFC.</t> actions.</t>
    </section>
  </middle>
  <back>
	<references title="Normative References">
	&RFC0791;
	&RFC0793;
	&RFC2018;
	&RFC2119;
	&RFC5925;
	&RFC5926;
	&RFC6978;
	&RFC7323;
	&RFC8174;
	&RFC8200;
    <references>
      <name>References</name>
      <references>
        <name>Normative References</name>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.0791.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.0793.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2018.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2119.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.5925.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.5926.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.6978.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.7323.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.8174.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.8200.xml"/>
      </references>
      <references>
        <name>Informative References</name>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2202.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.4493.xml"/>
        <xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.9187.xml"/>
      </references>
	<references title="Informative References">
	&RFC2202;
	&RFC4493;
	&RFC9187;
    </references>
    <section title="Acknowledgments" anchor="sect-12"><t>
   This document was prepared using 2-Word-v2.0.template.dot.</t> anchor="sect-12" numbered="false" toc="default">
      <name>Acknowledgments</name>
      <t>This work benefitted benefited from feedback from Russ Housley <contact fullname="Russ Housley"/> and Michael Scharf, <contact fullname="Michael Scharf"/> as well as discussions on the IETF TCPM email list and with the IESG.</t>
            <t>This document was initially prepared using 2-Word-v2.0.template.dot.</t>
    </section>
  </back>

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</rfc>