+#. type: Content of: <refentry><refsect1><title>
+#: apt-key.8.xml
+msgid "Supported keyring files"
+msgstr ""
+
+#. type: Content of: <refentry><refsect1><para>
+#: apt-key.8.xml
+msgid ""
+"apt-key supports only the binary OpenPGP format (also known as \"GPG key "
+"public ring\") in files with the \"<literal>gpg</literal>\" extension, not "
+"the keybox database format introduced in newer &gpg; versions as default for "
+"keyring files. Binary keyring files intended to be used with any apt version "
+"should therefore always be created with <command>gpg --export</command>."
+msgstr ""
+
+#. type: Content of: <refentry><refsect1><para>
+#: apt-key.8.xml
+msgid ""
+"Alternatively, if all systems which should be using the created keyring have "
+"at least apt version >= 1.4 installed, you can use the ASCII armored format "
+"with the \"<literal>asc</literal>\" extension instead which can be created "
+"with <command>gpg --armor --export</command>."
+msgstr ""
+