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
</a>'s data fields shall contain the following entries:</font>
</font>
</font>
</p>
<ul style="list-style-type: disc; margin: 0in 0in 0in 0.511806in; padding: 0pt; text-indent: -0.314583in; text-align: left;">
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">self<font style="font-family: Times New Roman;">: the data is self-signed. Therefore, no additional data shall be given. </font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">certificate_digest_with_sha256<font style="font-family: Times New Roman;">: an 8 octet digest of the relevant certificate contained in a <a href="type">
<font style="font-family: Courier New;">HashedId8</font>
</a> structure shall be given.</font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">certificate<font style="font-family: Times New Roman;">: the relevant certificate itself contained in a <a href="type">
<font style="font-family: Courier New;">Certificate</font>
</a> structure shall be given.</font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">certificate_chain<font style="font-family: Times New Roman;">: a complete certificate chain contained in a variable-length vector of type <a href="type">
<font style="font-family: Courier New;">Certificate</font>
</a> shall be given. <span class="requality_text id_083c999c-3428-451c-ae75-be7d885f5975"><a class="requality_id" id="id_083c999c-3428-451c-ae75-be7d885f5975" name="083c999c-3428-451c-ae75-be7d885f5975"></a>The last element of the chain shall contain the certificate used to sign the message, the next to last element shall contain the certificate of the CA that signed the last certificate and so on.</span> The first element of the chain needs not be a root certificate.</font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">certificate_digest_with_other_algorithm<font style="font-family: Times New Roman;">: an 8 octet digest contained in a <a href="type">
<font style="font-family: Courier New;">HashedId8</font>
</a> structure and the corresponding public key algorithm contained in a <font style="font-family: Courier New;">PublicKeyAlgorithm<font style="font-family: Times New Roman;"> structure shall be given.</font>
</font>
</font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">unknown<font style="font-family: Times New Roman;">: in all other cases, a variable-length vector containing information as <font style="font-family: Courier New;">opaque<font style="font-family: Times New Roman;"> data shall be given.</font>
</font>
</font>
</font>
</li>
</p>
</ul>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Except naming, this definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.2.4. </font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786165">4.2.11<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_signerinfotype">SignerInfoType</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">enum {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />self(0),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />certificate_digest_with_sha256(1),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />certificate(2),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />certificate_chain(3),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />certificate_digest_with_other_algorithm(4),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />reserved(240..255),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />(2^8-1)</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} SignerInfoType;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This enumeration lists methods to describe a message's signer. Values in the range of 240 to 255 shall not be used as they are reserved for internal testing purposes.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is similar to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.2.5, but naming and <font style="font-family: Courier New;">certificate_digest_with_ecdsap224<font style="font-family: Times New Roman;"> is not supported by the present document. As a consequence, the numbering of identical elements (e.g. <font style="font-family: Courier New;">certificate_chain<font style="font-family: Times New Roman;">) differs.</font>
</font>
</font>
</font>
</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786166">4.2.12<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_hashedid8">HashedId8</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">opaque<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />HashedId8[8];</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This value is used to identify data such as a certificate. It shall be calculated by first computing the SHA‑256 hash of the input data, and then taking the least significant eight bytes from the hash output. </font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">A canonical encoding for the <font style="font-family: Courier New;">EccPoint R <font style="font-family: Times New Roman;">contained in the <font style="font-family: Courier New;">signature field<font style="font-family: Times New Roman;"> of a <font style="font-family: Courier New;">Certificate<font style="font-family: Times New Roman;"> shall be used when calculating the SHA-256 hash from a <font style="font-family: Courier New;">Certificate<font style="font-family: Times New Roman;">. This canonical encoding shall temporarily replace the value of the <font style="font-family: Courier New;">EccPointType<font style="font-family: Times New Roman;"> of the point <font style="font-family: Courier New;">R<font style="font-family: Times New Roman;"> of the <font style="font-family: Courier New;">Certificate<font style="font-family: Times New Roman;"> with <font style="font-family: Courier New;">x_coordinate_only<font style="font-family: Times New Roman;"> for the hash computation.</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Except naming, this definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.2.6.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />The canonical encoding is used to remove the possibility of manipulating the certificate in a way that results in different <font style="font-family: Courier New;">HashedId8<font style="font-family: Times New Roman;"> identifiers for the same certificate by changing the <font style="font-family: Courier New;">EccPointType<font style="font-family: Times New Roman;">. Implementations that do not use the fast verification according to "Accelerated verification of ECDSA signatures" [<a href="REF">i.6</a>] cannot detect this manipulation.</font>
</font>
</font>
</font>
</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786167">4.2.13<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_hashedid2">HashedId3</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">opaque<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />HashedId3[3];</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This value is used to give an indication on an identifier, where real identification is not required. This can be used to request a certificate from other surrounding stations. It shall be calculated by first computing the SHA‑256 hash of the input data, and then taking the least significant three bytes from the hash output. If a corresponding <a href="type">
<font style="font-family: Courier New;">HashedId8</font>
</a> value is available, it can be calculated by truncating the longer <font style="font-family: Courier New;">HashedId8<font style="font-family: Times New Roman;"> to the least significant three bytes.</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is not available in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>].</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786168">4.2.14<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_time32">Time32</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">uint32<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Time32;</font>
</p>
<p class="class_31"></p>
<p class="class_38">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Time32<font style="font-family: Times New Roman;"> is an unsigned 32-bit integer, encoded in big-endian format, giving the number of International Atomic Time (TAI) seconds since 00:00:00 UTC, 01 January 2004.</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />The period of 2</font>
<font style="font-size: 6pt; vertical-align: super;">32</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> seconds lasts about 136 years that is until 2140.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D17 [<a href="REF">i.3</a>], clause 6.3.31.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786169">4.2.15<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_time64">Time64</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">uint64<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Time64;</font>
</p>
<p class="class_31"></p>
<p class="class_38">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Time64<font style="font-family: Times New Roman;"> is a 64-bit unsigned integer, encoded in big-endian format, giving the number of International Atomic Time (TAI) microseconds since 00:00:00 UTC, 01 January 2004.</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D17 [<a href="REF">i.3</a>], clause 6.2.12.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786170">4.2.16<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_time64_with_std_dev">Time64WithStandardDeviation</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Time64<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />time;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />uint8<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />log_std_dev;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} Time64WithStandardDeviation;<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines how to encode <font style="font-family: Courier New;">time<font style="font-family: Times New Roman;"> along with the standard deviation of time values. <font style="font-family: Courier New;">log_std_dev<font style="font-family: Times New Roman;">  values 0 to 254 represent the rounded up value of the log to the base 1,134666 of the implementation's estimate of the standard deviation in units of nanoseconds. Values greater than 1,134666</font>
</font>
</font>
</font>
</font>
<font style="font-size: 6pt; vertical-align: super;">254</font>
<font style="font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> nanoseconds are represented by the value 254, i.e. a day or longer. If the standard deviation is unknown, value 255 shall be used. </font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D17 [<a href="REF">i.3</a>], clause 6.2.11.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is currently unused in the security profiles in clause 7.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786171">4.2.17<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_duration">Duration</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">uint16<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Duration;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This <font style="font-family: Courier New;">uint16<font style="font-family: Times New Roman;"> encodes the duration of a time span (e.g. a certificate's validity). The first three bits shall encode the units as given in table <a href="">3</a>. The remaining 13 bits shall be treated as an integer encoded.</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Except naming, this definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.5.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is currently unused in the security profiles in clause 7.</font>
</p>
<p class="class_29">
<table style="border-collapse: collapse; border-spacing: 0pt;">
<tbody>
<tr style="height: 0in;">	<td colspan="2" style="border-bottom: 1px solid black; width: 3.82986in;">
<p class="class_29">
<font style="font-style: normal; font-weight: bold; text-decoration: none; vertical-align: baseline;">Table <font style="font-style: normal; font-weight: bold; text-decoration: none; vertical-align: baseline;">: Interpretation of duration unit bits</font>
</font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: bold; text-decoration: none; vertical-align: baseline;">Bits</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: bold; text-decoration: none; vertical-align: baseline;">Interpretation</font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">000</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">seconds</font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">001</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">minutes (60 seconds)</font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">010</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">hours (3 600 seconds)</font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">011</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">60 hour blocks (216 000 seconds) </font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">100</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">years (31 556 925 seconds)</font>
</p>
</td>
</tr>
<tr style="height: 0in;">	<td style="border: 1px solid black; width: 1.36875in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">101, 110, 111</font>
</p>
</td>	<td style="border: 1px solid black; width: 2.46111in;">
<p class="class_30">
<font style="font-size: 9pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">undefined</font>
</p>
</td>
</tr>
</tbody>
</table>
</p>
<p class="class_5"></p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786172">4.2.18<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_twodlocation">TwoDLocation</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />sint32<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />latitude;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />sint32<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />longitude;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} TwoDLocation;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines how to specify a two dimensional location. It is used to define validity regions of a certificate. <font style="font-family: Courier New;">latitude<font style="font-family: Times New Roman;"> and <font style="font-family: Courier New;">longitude<font style="font-family: Times New Roman;"> encode a coordinate in tenths of micro degrees relative to the World Geodetic System (WGS)-84 datum as defined in NIMA Technical Report TR8350.2 [<a href="REF">2</a>]. </font>
</font>
</font>
</font>
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The permitted values of <font style="font-family: Courier New;">latitude<font style="font-family: Times New Roman;"> range from ‑900 000 000 to +900 000 000. The value 900 000 001 shall indicate the latitude as not being available.</font>
</font>
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The permitted values of <font style="font-family: Courier New;">longitude<font style="font-family: Times New Roman;"> range from ‑1 800 000 000 to +1 800 000 000. The value 1 800 000 001 shall indicate the longitude as not being available.</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.18.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786173">4.2.19<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_threedlocation">ThreeDLocation</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />sint32<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />latitude;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />sint32<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />longitude;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />opaque<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />elevation[2];</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} ThreeDLocation;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines how to specify a three dimensional location. <font style="font-family: Courier New;">latitude<font style="font-family: Times New Roman;"> and <font style="font-family: Courier New;">longitude<font style="font-family: Times New Roman;"> encode coordinate in tenths of micro degrees relative to the World Geodetic System (WGS)-84 datum as defined in NIMA Technical <br />Report TR8350.2 [<a href="REF">2</a>].</font>
</font>
</font>
</font>
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The permitted values of <font style="font-family: Courier New;">latitude<font style="font-family: Times New Roman;"> range from ‑900 000 000 to +900 000 000. The value 900 000 001 shall indicate the latitude as not being available.</font>
</font>
</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">The permitted values of <font style="font-family: Courier New;">longitude<font style="font-family: Times New Roman;"> range from ‑1 800 000 000 to +1 800 000 000. The value 1 800 000 001 shall indicate the longitude as not being available.</font>
</font>
</font>
</p>
<p class="class_38">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">elevation<font style="font-family: Times New Roman;"> shall contain the elevation relative to the WGS-84 ellipsoid in decimetres. The value is interpreted as an asymmetric signed integer with an encoding as follows:</font>
</font>
</p>
<ul style="list-style-type: disc; margin: 0in 0in 0in 0.511806in; padding: 0pt; text-indent: -0.314583in; text-align: left;">
<p class="class_35 b1+">	<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;">0x0000 to 0xEFFF: positive numbers with a range from 0 metres to +6 143,9 metres. All numbers above +6 143,9 are also represented by 0xEFFF.</font>
</li>
</p>
<p class="class_35 b1+">	<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;">0xF001 to 0xFFFF: negative numbers with a range from ‑409,5 metres to ‑0,1 metres. All numbers below ‑409,5 are also represented by 0xF001.</font>
</li>
</p>
<p class="class_35 b1+">	<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;">0xF000: an unknown elevation.</font>
</li>
</p>
</ul>
<p class="class_27">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">EXAMPLES: <img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />0x0000 = 0 metre</font>
</p>
<p class="class_39">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">0x03E8 = 100 metres</font>
</p>
<p class="class_39">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">0xF7D1 = ‑209,5 metres (0xF001 + 0x07D0 = ‑409,5 metres + 200 metres).</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.2.12.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786174">4.2.20<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_geographicregion">GeographicRegion</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />RegionType<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />region_type;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />select(region_type){</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case circle:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />CircularRegion<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />circular_region;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case rectangle:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />RectangularRegion<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />rectangular_region&lt;var&gt;;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case polygon:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />PolygonalRegion<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />polygonal_region;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case id:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />IdentifiedRegion<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />id_region;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case none:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />unknown:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />opaque<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />other_region&lt;var&gt;;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />}</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} GeographicRegion;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines how to encode geographic regions. These regions can be used to limit the validity of certificates.</font>
</p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"><span class="requality_text id_54bc9834-9895-4ea3-b091-ac14c2e45b29"><a class="requality_id" id="id_54bc9834-9895-4ea3-b091-ac14c2e45b29" name="54bc9834-9895-4ea3-b091-ac14c2e45b29"></a>In case of </span><font style="font-family: Courier New;"><span class="requality_text id_54bc9834-9895-4ea3-b091-ac14c2e45b29">rectangle</span><font style="font-family: Times New Roman;"><span class="requality_text id_54bc9834-9895-4ea3-b091-ac14c2e45b29">, the region shall consist of a variable-length vector of rectangles that may be overlapping or disjoint. The variable-length vector shall not contain more than 6 rectangles. The region covered by the rectangles shall be continuous and shall not contain holes.</span></font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Except inclusion of case <font style="font-family: Courier New;">id<font style="font-family: Times New Roman;">, this definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.13.</font>
</font>
</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786175">4.2.21<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_regiontype">RegionType</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">enum { </font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />none(0),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />circle(1),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />rectangle(2),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />polygon(3),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />id(4),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />reserved(240..255),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />(2^8-1)</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} RegionType;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This enumeration lists possible region types. Values in the range of 240 to 255 shall not be used as they are reserved for internal testing purposes.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is similar to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.14, but the identifier numbering differs, the region ID <font style="font-family: Courier New;">id<font style="font-family: Times New Roman;"> was added and <font style="font-family: Courier New;">from_issuer<font style="font-family: Times New Roman;"> removed.</font>
</font>
</font>
</font>
</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786176">4.2.22<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_circularregion">CircularRegion</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />TwoDLocation    center;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />uint16          radius;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} CircularRegion;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines a circular region with <font style="font-family: Courier New;">radius<font style="font-family: Times New Roman;"> given in metres and center at <font style="font-family: Courier New;">center<font style="font-family: Times New Roman;">. The region shall include all points on the reference ellipsoid's surface with a distance over surface of Earth equal to or less than the radius to the center point. For a location of type <font style="font-family: Courier New;">ThreeDLocation<font style="font-family: Times New Roman;">, i.e. the location contains an elevation component, the horizontal projection onto the reference ellipsoid is used to determine if the location lies within the circular region.</font>
</font>
</font>
</font>
</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.15. </font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786177">4.2.23<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_rectangularregion">RectangularRegion</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />TwoDLocation<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />northwest;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />TwoDLocation<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />southeast;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} RectangularRegion;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines a rectangular region by connecting the four points in the order (northwest.latitude, northwest.longitude), (northwest.longitude, southeast.longitude), (southeast.longitude, southeast.longitude), and (southeast.longitude, northwest.longitude). If two consecutive points P and Q define a line of constant latitude or longitude from P to Q, the left side of the line is defined as being outside of the polygon and the line itself and the right side of the line to be inside the rectangular region. <span class="requality_text id_bf8fd5f7-1eca-4385-b102-d7f1bbba5660"><a class="requality_id" id="id_bf8fd5f7-1eca-4385-b102-d7f1bbba5660" name="bf8fd5f7-1eca-4385-b102-d7f1bbba5660"></a>A rectangular region is only valid if the location </span><font style="font-family: Courier New;"><span class="requality_text id_bf8fd5f7-1eca-4385-b102-d7f1bbba5660">northwest</span><font style="font-family: Times New Roman;"><span class="requality_text id_bf8fd5f7-1eca-4385-b102-d7f1bbba5660"> is north of the location southeast</span>. For a location of type <font style="font-family: Courier New;">ThreeDLocation<font style="font-family: Times New Roman;">, i.e. the location contains an elevation component, the horizontal projection onto the reference ellipsoid is used to determine if the location lies within the rectangular region.</font>
</font>
</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.16.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786178">4.2.24<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_polygonalregion">PolygonalRegion</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">TwoDLocation<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />PolygonalRegion&lt;var&gt;;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This variable-length vector describes a region by enumerating points on the region's boundary. If two consecutively specified points P and Q define a line of constant bearing from P to Q, the left side of the line is defined as being outside of the polygon and the line itself and the right side of the line to be inside the polygon.<span class="requality_text id_235ceabe-4e4b-4beb-8988-bf7091fe8d2f"><a class="requality_id" id="id_235ceabe-4e4b-4beb-8988-bf7091fe8d2f" name="235ceabe-4e4b-4beb-8988-bf7091fe8d2f"></a> The points shall be linked to each other, with the last point linked to the first. No intersections shall occur and at least 3 and no more than 12 points shall be given. The specified region shall be continuous and shall not contain holes.</span> For a location of type <font style="font-family: Courier New;">ThreeDLocation<font style="font-family: Times New Roman;">, i.e. the location contains an elevation component, the horizontal projection onto the reference ellipsoid is used to determine if the location lies within the polygonal region.</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is identical to the one in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>], clause 6.3.17.</font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786179">4.2.25<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_identifiedregion">IdentifiedRegion</a>
</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />RegionDictionary<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />region_dictionary;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />uint16<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />region_identifier;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />IntX<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />local_region;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} IdentifiedRegion;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines a predefined geographic region determined by the region dictionary <font style="font-family: Courier New;">region_dictionary<font style="font-family: Times New Roman;"> and the region identifier <font style="font-family: Courier New;">region_identifier<font style="font-family: Times New Roman;">. <font style="font-family: Courier New;">local_region<font style="font-family: Times New Roman;"> may optionally specify a more detailed region within the region. If the whole region is meant, <font style="font-family: Courier New;">local_region<font style="font-family: Arial;"> <font style="font-family: Times New Roman;">shall be set to 0. The details of <font style="font-family: Courier New;">local_region<font style="font-family: Times New Roman;"> are unspecified.</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is not available in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>]. </font>
</p>
<h3 class="class_33">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786180">4.2.26<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />RegionDictionary</a>
</font>
</h3>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">enum { </font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />iso_3166_1(0),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />un_stats(1),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />(2^8-1)</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} RegionDictionary;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This enumeration lists dictionaries containing two-octet records of globally defined regions. <span class="requality_text id_60585f95-c23b-4663-a422-c5a12c7b17ab"><a class="requality_id" id="id_60585f95-c23b-4663-a422-c5a12c7b17ab" name="60585f95-c23b-4663-a422-c5a12c7b17ab"></a>The dictionary that corresponds to </span><font style="font-family: Courier New;"><span class="requality_text id_60585f95-c23b-4663-a422-c5a12c7b17ab">iso_3166_1</span><font style="font-family: Times New Roman;"><span class="requality_text id_60585f95-c23b-4663-a422-c5a12c7b17ab"> shall contain values that correspond to numeric country codes as defined in ISO 3166-1</span> [<a href="REF">3</a>]. <span class="requality_text id_815d02b2-2d5e-4a9d-8632-386a8017515f"><a class="requality_id" id="id_815d02b2-2d5e-4a9d-8632-386a8017515f" name="815d02b2-2d5e-4a9d-8632-386a8017515f"></a>The dictionary that corresponds to </span><font style="font-family: Courier New;"><span class="requality_text id_815d02b2-2d5e-4a9d-8632-386a8017515f">un_stats</span><font style="font-family: Times New Roman;"><span class="requality_text id_815d02b2-2d5e-4a9d-8632-386a8017515f"> shall contain values as defined by the United Nations Statistics Division, which is a superset of ISO 3166-1 [</span><a href="REF"><span class="requality_text id_815d02b2-2d5e-4a9d-8632-386a8017515f">3</span></a><span class="requality_text id_815d02b2-2d5e-4a9d-8632-386a8017515f">] including compositions of regions.</span></font>
</font>
</font>
</font>
</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is not available in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>].</font>
</p>
<h1 class="class_24">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786181">5<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Specification of security header</a>
</font>
</h1>
<h2 class="class_25">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786182">5.1<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_securedmessage">SecuredMessage</a>
</a>
</font>
</h2>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />uint8<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />protocol_version;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />HeaderField<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />header_fields&lt;var&gt;;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Payload<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />payload_field;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />TrailerField<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />trailer_fields&lt;var&gt;;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} SecuredMessage;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines how to encode a generic secured message: </font>
</p>
<ul style="list-style-type: disc; margin: 0in 0in 0in 0.511806in; padding: 0pt; text-indent: -0.314583in; text-align: left;">
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">protocol_version<font style="font-family: Times New Roman;"> specifies the applied protocol version.<span class="requality_text id_58ea9176-dfab-4645-a9a2-855e9d5d57dc"><a class="requality_id" id="id_58ea9176-dfab-4645-a9a2-855e9d5d57dc" name="58ea9176-dfab-4645-a9a2-855e9d5d57dc"></a> For compliance with the present document, protocol version </span><font style="font-family: Courier New;"><span class="requality_text id_58ea9176-dfab-4645-a9a2-855e9d5d57dc">2</span><font style="font-family: Times New Roman;"><span class="requality_text id_58ea9176-dfab-4645-a9a2-855e9d5d57dc"> shall be used</span>. The <font style="font-family: Courier New;">protocol_version<font style="font-family: Times New Roman;"> shall be increased, if the standard is changed in an incompatible way, i.e. the syntax is incompatible such that older implementations cannot parse the format or the semantic has been changed significantly. </font>
</font>
</font>
</font>
</font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">header_fields<font style="font-family: Times New Roman;"> is a variable-length vector that contains multiple information fields of interest to the security layer. If not defined otherwise in a message profile, the sequence of header fields shall be encoded in ascending numerical order of their type value. </font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">payload_field <font style="font-family: Times New Roman;">contains the message's payload. Multiple payloads  in one message are not allowed.</font>
</font>
</li>
</p>
<p class="class_37 b1+">	<li class="class_36">
<font style="font-family: Courier New; font-size: 10pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">trailer_fields<font style="font-family: Times New Roman;"> is a variable-length vector containing information after the payload, for example, necessary to verify the message's authenticity and integrity. If not defined otherwise in a message profile, the sequence of trailer fields shall be encoded in ascending numerical order of the type value.</font>
</font>
</li>
</p>
</ul>
<p class="class_40">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Further information about how to fill these variable-length vectors is given via security profiles in clause 7.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is not available in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>].</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />An example for a reason to increase the <font style="font-family: Courier New;">protocol_version<font style="font-family: Times New Roman;"> is a change to the epoch in clause 4.2.15 and clause 4.2.16, which leads to incompatible messages. A counterexample would be an additional header field using the <font style="font-family: Courier New;">unknown<font style="font-family: Times New Roman;"> case in clause 5.4. This header field can be ignored by old implementations, if the syntax is kept identical and the versions are compatible. Hence, the <font style="font-family: Courier New;">protocol_version<font style="font-family: Times New Roman;"> should not be increased.</font>
</font>
</font>
</font>
</font>
</font>
</font>
</p>
<h2 class="class_25">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786183">5.2<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_payload">Payload</a>
</a>
</font>
</h2>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">struct {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />PayloadType type;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />select (type) {</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case signed_external:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case unsecured:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case signed:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case encrypted:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />case signed_and_encrypted:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />unknown:</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />opaque<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />data&lt;var&gt;;</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />}</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} Payload;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This structure defines how to encode payload. In case of externally signed payload, no payload data shall be given as all data is external. In this case, the external data shall be included when calculating the signature, at the position where a non-external payload would be. In all other cases, the data shall be given as a variable-length vector containing <font style="font-family: Courier New;">opaque<font style="font-family: Times New Roman;"> data.</font>
</font>
</font>
</p>
<p class="class_41">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 1:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is not available in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>].</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE 2:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />Payloads of type <font style="font-family: Courier New;">signed_external<font style="font-family: Times New Roman;"> are needed to add a signature in a non-intrusive way to an existing protocol stack, e.g. for extending an IPv6 stack.</font>
</font>
</font>
</p>
<h2 class="class_25">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<a id="_Toc421786184">5.3<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />
<a id="type_payloadtype">PayloadType</a>
</a>
</font>
</h2>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">enum  { </font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />unsecured(0),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />signed(1),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />encrypted(2),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />signed_external(3),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />signed_and_encrypted(4),</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">
<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />(2^8-1)</font>
</p>
<p class="class_31">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">} PayloadType;</font>
</p>
<p class="class_31"></p>
<p class="class_5">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">This enumeration lists the supported types of payloads.</font>
</p>
<p class="class_26">
<font style="font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">NOTE:<img height="1" border="0" width="18" src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D" />This definition is not available in IEEE 1609.2 Draft D12 [<a href="REF">i.2</a>].</font>
</p>
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