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</td> <td style="border: 1px solid black; width: 0.503472in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">0x00</font>
</p>
</td> <td style="border: 1px solid black; width: 2.08403in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ecdsa<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">_nistp256_with_sha256</font>
</font>
</p>
</td> <td style="border: 1px solid black; width: 0.672222in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">1</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 3.43403in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />EcdsaSignature <font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ecdsa<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">_signature</font>
</font>
</font>
</p>
</td> <td style="border: 1px solid black; width: 0.503472in;">
<p class="class_30"></p>
</td> <td style="border: 1px solid black; width: 2.08403in; vertical-align: top;">
<p class="class_30"></p>
</td> <td style="border: 1px solid black; width: 0.672222in; vertical-align: top;">
<p class="class_30"></p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 3.43403in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />EccPoint R</font>
</p>
</td> <td style="border: 1px solid black; width: 0.503472in;">
<p class="class_30"></p>
</td> <td style="border: 1px solid black; width: 2.08403in; vertical-align: top;">
<p class="class_30"></p>
</td> <td style="border: 1px solid black; width: 0.672222in; vertical-align: top;">
<p class="class_30"></p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 3.43403in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />EccPointType type</font>
</p>
</td> <td style="border: 1px solid black; width: 0.503472in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">0x0<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">0</font>
</font>
</p>
</td> <td style="border: 1px solid black; width: 2.08403in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">x_coordinate_only</font>
</p>
</td> <td style="border: 1px solid black; width: 0.672222in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">1</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 3.43403in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />opaque x<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">[32]</font>
</font>
</p>
</td> <td style="border: 1px solid black; width: 0.503472in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">[…]</font>
</p>
</td> <td style="border: 1px solid black; width: 2.08403in; vertical-align: top;">
<p class="class_30"></p>
</td> <td style="border: 1px solid black; width: 0.672222in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">32</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 3.43403in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />opaque s<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">[32]</font>
</font>
</p>
</td> <td style="border: 1px solid black; width: 0.503472in;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">[…]</font>
</p>
</td> <td style="border: 1px solid black; width: 2.08403in; vertical-align: top;">
<p class="class_30"></p>
</td> <td style="border: 1px solid black; width: 0.672222in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">32</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td colspan="4" style="border: 1px solid black; width: 6.69375in; vertical-align: top;">
<p class="class_30">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The total size of this certificate is <font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">133 <font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">octets.</font>
</font>
</font>
</p>
</td>
</tr>
</tbody>
</table>
</p>
<p class="class_5"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">�</font>
</p>
<h1 class="class_24">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc388367909">Annex B (informative): Usage of ITS-AID and SSPs</a>
</font>
</h1>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">An incoming secured message should only be accepted by the receiver if the payload of the secured message is consistent with the ITS-AID and SSP in the certificate. This consistency should be checked in two ways:<br />
</font>
</p>
<ol style="margin: 0in 0in 0in 0.511806in; padding: 0pt; text-indent: -0.314583in; text-align: left;">
<p class="class_39 bN"> <li class="class_36" value="1">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Within the security processing, the ITS-AID in the certificate can be checked for consistency with the message_type field in the SecuredMessage format.<br />
</font>
</li>
</p>
<p class="class_39 bN"> <li class="class_36">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">At the point at which the data is processed (which may be in the receiving facilities layer or in the receiving application layer), the data can be checked for consistency with the ITS-AID and the SSP from the certificate. Architecturally, this check is carried out by the processing entity that processes the data payload of the SecuredMessage, not by the security processing services. This is because the security processing services cannot and should not be expected to be able to parse the data of all possible different applications and facilities. Thus, a full definition of a data exchange for applications or facilities that use signed messages should include a specification of the ITS-AID, a specification of the SSP, and a definition of what it means for the data itself to be consistent with the ITS-AID and SSP.<br />
</font>
</li>
</p>
</ol>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The use of ITS-AID and SSP therefore includes the following steps:<br />
</font>
</p>
<ol style="margin: 0in 0in 0in 0.511806in; padding: 0pt; text-indent: -0.314583in; text-align: left;">
<p class="class_39 bN"> <li class="class_36" value="3">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">At the design stage, the group defining a given data exchange determines whether the exchanges are to be signed with ETSI TS 103 097 certificates. If they are, the group reserves an ITS-AID and defines an SSP.<br />
</font>
</li>
</p>
<p class="class_39 bN"> <li class="class_36">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">When an ITS-Station is initialized with the ability to carry out a data exchange, it requests certificates with the appropriate ITS-AID and SSP. <br />
</font>
</li>
</p>
<p class="class_39 bN"> <li class="class_36">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">An Authorization Authority determines whether the ITS-Station is entitled to that ITS-AID and SSP, using methods outside the scope of the present document to make that determination. It issues the certificates to the ITS-S. <br />
</font>
</li>
</p>
<p class="class_39 bN"> <li class="class_36">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The sending ITS-Station generates a message that is consistent with the ITS-AID and SSP, and uses the private key corresponding to the certificate to sign that message. <br />
</font>
</li>
</p>
<p class="class_39 bN"> <li class="class_36">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">On the receiving side, the security processing checks that the message was correctly cryptographically signed, is not a replay (if appropriate), etc.<br />
</font>
</li>
</p>
<p class="class_39 bN"> <li class="class_36">
<font style="font-family: Times New Roman; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">On the receiving side, the data processing entity (which may be an application or the facilities layer) uses the ITS-AID and SSP from the certificate to check that the data is consistent with those permissions. This means that the ITS-AID and SSP should be made available to the data processing entity, for example by passing them across an interface from the security processing, or by passing the entire certificate and letting the data processing entity extract the ITS-AID and SSP from the certificate, or by some other means.<br />
</font>
</li>
</p>
</ol>
<p class="class_25">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />The ITS-AID and SSP are contained in the certificate, which is cryptographically authenticated and authorized by the Authorization Authority. Because of this cryptographic authentication, it is impossible for the certificate holder to change their permissions without causing cryptographic authentication to fail.<br />
</font>
</p>
<p class="class_25">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img width="18" height="1" border="0" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />The ETSI TS 103 097 certificate format allows a certificate to contain multiple (ITS-AID, SSP) pairs. In this case, the receiving side processing is expected to know which ITS-AID is to be used in conjunction with an incoming message.</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">One way to make the concept of SSP future proof is to add the version number of the corresponding facility to the SSP.<br />
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The interpretation of the SSP is specific for each facility. One possible way to implement it is to use a bit map to define which permissions a sender is authorized to use.<br />
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The bit value "1" then means that the sender is authorized to use the corresponding feature and consequently the bit value "0" means that the sender is not authorized to use it.<br />
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">�</font>
</p>
<h1 class="class_24">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc388367910">History</a>
</font>
</h1>
<p class="class_51">
<table style="border-collapse: collapse; border-spacing: 0pt;">
<tbody>
<tr style="height: 0in;"> <td colspan="3" style="border: 1px solid black; width: 6.69375in; vertical-align: top;">
<p class="class_51">
<font style="font-style: normal; font-weight: bold; text-decoration: none; vertical-align: baseline;">Document history</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 0.865972in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">V1.1.1</font>
</p>
</td> <td style="border: 1px solid black; width: 1.10278in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">April 2013</font>
</p>
</td> <td style="border-right: 1px solid black; border-top: 1px solid black; border-bottom: 1px solid black; width: 4.725in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Publication</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 0.865972in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">V1.1.6</font>
</p>
</td> <td style="border: 1px solid black; width: 1.10278in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">May 2014</font>
</p>
</td> <td style="border-right: 1px solid black; border-top: 1px solid black; border-bottom: 1px solid black; width: 4.725in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Pre-processing done before <font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">TB<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> approval<br />
</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">E-mail: <a href="mailto:edithelp@etsi.org"></a>
</font>
<font style="font-style: normal; font-weight: normal; text-decoration: underline; vertical-align: baseline;">mailto:edithelp@etsi.org</font>
</font>
</font>
</p>
</td>
</tr>
<tr style="height: 0in;"> <td style="border: 1px solid black; width: 0.865972in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">V1.1.9</font>
</p>
</td> <td style="border: 1px solid black; width: 1.10278in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">October 2014</font>
</p>
</td> <td style="border-right: 1px solid black; border-top: 1px solid black; border-bottom: 1px solid black; width: 4.725in; vertical-align: top;">
<p class="class_52">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">M<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ajor changes since V1.1.1</font>
</font>
</p>
<ul style="list-style-type: disc; margin: 0in 0in 0in 0.511806in; padding: 0pt; text-indent: -0.315278in; text-align: left;">
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Intr</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">odu</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ced a maximum length for variable length vectors with variable length</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> length</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> encoding.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The t</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ime epoch for </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Time32</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> and </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Time64</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> </font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">was</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> changed to 1</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> January, 2004 to align the </font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">specification</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> with IEEE 1609.2 and other standards.</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Changed the </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">HashedId8</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> generation to use a canonical encoding of signatures.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Refinement of the validity of geographic regions.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Removed support for multiple payloads.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Removed </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ItsAidPriority</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> and </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">ItsAidPrioritySsp</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Refinement of the signature generation</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> description</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> to define which parts of a message or certificate are hashed in the process of calculating a</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">n</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> ECDSA signature.</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Fixed the </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">EciesEncryptedKey</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> to</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> specify all necessary parameters according to IEEE 1363a-2004.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Remove</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">d</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> the possibility to add additional header fields, except for unknown header fields.</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Removed the </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">security_profile</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Replaced </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">message_type</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> with </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">its_aid</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Added informative Annex B for clarification of the usage of ITS-AID and SSPs.<br />
</font>
</li>
</p>
<p class="class_45 b2+"> <li class="class_36">
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Increased the </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">version</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> and </font>
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">protocol_version</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> numbers to 2, because of</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> </font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">t</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">he</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> change of the time epoch and </font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">the </font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">syntactic changes.</font>
</li>
</p>
</ul>
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