This file is indexed.

/usr/share/chipcard/apps/ddv.xml is in libchipcard-data 5.0.3beta-4ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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<!-- 
  This file only contains a short description which applies to all DDV type
  cards. It is only used while determining the correct DDV card version
 -->
 
<apps>
  <app name="ddv">
    <files>
      <ef name="EF_ID" sid="0x0003"
          type="record" mode="linear" 
          minnum="1" maxnum="1">
        <record>
          <ELEM name="branchKey" type="byte" bcd="1"  />
          <ELEM name="shortBankCode" type="bcd" size="3">
            <DESCR>
              First byte (BCD) shows the group:
                21: oeffentlich-rechtliche und private banken
                22: Privat- und Geschaeftsbanken
                25: Sparkassen
                26, 29: Genossenschaftsbanken
            </DESCR>
          </ELEM>
          <ELEM name="cardNumber" type="bcd" size="5" />
          <ELEM name="checksum" type="byte" bcd="1" />
          <ELEM name="validUntil" type="bytes" size="2">
            <DESCR> YYMM (BCD)</DESCR>
          </ELEM>
          <ELEM name="validSince" type="bytes" size="3" >
            <DESCR> YYMMDD (BCD)</DESCR>
          </ELEM>
          <ELEM name="country" type="word" bcd="1" />
          <ELEM name="currency" type="ascii" 
                size="3" filler="32" condense="1"  />
          <ELEM name="factor" type="byte" >
            <DESCR>
              Binary coded:
                01: 10^-2
                02: 10^-1
                04: 10^0
                08: 10^1
                10: 10^2
                20: 10^3
            </DESCR>
          </ELEM>
          <ELEM name="chipversion" type="byte" />
          <ELEM name="filler" type="byte" minnum="0" >
            <DESCR>This value MUST be 0, otherwise this is bad data</DESCR>
          </ELEM>
          <ELEM name="OSVersion" type="byte" minnum="0" >
            <DESCR>This value MUST be !=0, otherwise this is bad data</DESCR>
          </ELEM>
        </record>
      </ef>

      <ef name="EF_LOG" sid="0x0004"
          type="record" mode="cyclic" 
          size="10" minnum="1" maxnum="3">
        <record>
          <ELEM name="CLA" type="byte" />
          <ELEM name="INS" type="byte" />
          <ELEM name="SW1" type="byte" />
          <ELEM name="SW2" type="byte" />
          <ELEM name="path" type="bytes" size="6">
            <DESCR> Left-filled with F </DESCR>
          </ELEM>
        </record>
      </ef>
      
    </files>
  </app>
</apps>