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    <title>topic Re: SSLPeerUnverifiedException with Android SDk in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7448#M330</link>
    <description>&lt;P&gt;I'm having the same problem, on a Samsung tablet running Lollipop. On the same device, the DropBox app itself works fine.&lt;BR /&gt;
Is there a clear work-around?&lt;/P&gt;</description>
    <pubDate>Mon, 01 Jun 2015 22:37:53 GMT</pubDate>
    <dc:creator>William M.46</dc:creator>
    <dc:date>2015-06-01T22:37:53Z</dc:date>
    <item>
      <title>SSLPeerUnverifiedException with Android SDk</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7444#M326</link>
      <description>&lt;P&gt;My app uses the Dropbox Android Core SDK.  One user has sent in some log data showing that our app is unable to connect to Dropbox.&lt;/P&gt;

&lt;P&gt;(Apologies for the slightly Proguard-obfuscated stacktrace):&lt;/P&gt;

&lt;P&gt;E/YNAB    (31699): com.dropbox.client2.a.g: javax.net.ssl.SSLPeerUnverifiedException: No peer certificate&lt;BR /&gt;
E/YNAB    (31699):  at com.dropbox.client2.m.a(RESTUtility.java:420)&lt;BR /&gt;
E/YNAB    (31699):  at com.dropbox.client2.m.a(RESTUtility.java:339)&lt;BR /&gt;
E/YNAB    (31699):  at com.dropbox.client2.a.a(DropboxAPI.java:1388)&lt;BR /&gt;
E/YNAB    (31699):  at com.dropbox.client2.a.a(DropboxAPI.java:1336)&lt;/P&gt;

&lt;P&gt;This user's phone is apparently a Blackphone, which apparently uses a hardened Android OS; see &lt;A href="https://blackphone.ch/" rel="nofollow noreferrer" target="_blank"&gt;https://blackphone.ch/&lt;/A&gt;&lt;BR /&gt;
This particular stacktrace comes from an older version of our app which also uses a slightly older version of the Dropbox SDK, but the user reports the same failure with the latest version of our app using v1.6.2 of the Dropbox SDK.&lt;/P&gt;

&lt;P&gt;Is there anything I can do as an app developer to mitigate this particular error, or is there anything I can suggest to this user as a workaround?&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:46:33 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7444#M326</guid>
      <dc:creator>Graham B.</dc:creator>
      <dc:date>2019-05-29T09:46:33Z</dc:date>
    </item>
    <item>
      <title>Re: SSLPeerUnverifiedException with Android SDk</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7445#M327</link>
      <description>&lt;P&gt;Thanks for the report! Do you know if this works on other phones running this operating system, or does this happen for all such phones with this OS?  I suspect it is due to the certificates  (or lack thereof) installed on this particular OS. &lt;/P&gt;</description>
      <pubDate>Sat, 03 Jan 2015 05:52:33 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7445#M327</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2015-01-03T05:52:33Z</dc:date>
    </item>
    <item>
      <title>Re: SSLPeerUnverifiedException with Android SDk</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7446#M328</link>
      <description>&lt;P&gt;It's the only report we've had, probably from the only one of our users who happens to have this particular kind of phone.&lt;/P&gt;

&lt;P&gt;Does Dropbox require some unusual certificates to be installed?&lt;/P&gt;</description>
      <pubDate>Sat, 03 Jan 2015 23:29:43 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7446#M328</guid>
      <dc:creator>Graham B.</dc:creator>
      <dc:date>2015-01-03T23:29:43Z</dc:date>
    </item>
    <item>
      <title>Re: SSLPeerUnverifiedException with Android SDk</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7447#M329</link>
      <description>&lt;P&gt;Thanks! I imagine you haven't been able to reproduce this then?&lt;/P&gt;

&lt;P&gt;Anyway, I don't believe there's anything unusual about about our certificate chain. I've taken a screenshot here:&lt;/P&gt;

&lt;P&gt;&lt;A href="https://www.dropbox.com/s/r2u82pm61kakjr0/Screenshot%202015-01-05%2010.47.35.png?dl=0" rel="nofollow noreferrer"&gt;https://www.dropbox.com/s/r2u82pm61kakjr0/Screenshot%202015-01-05%2010.47.35.png?dl=0&lt;/A&gt;&lt;/P&gt;

&lt;P&gt;Maybe this device doesn't have the necessary Go Daddy certificates? Can you ask the user to check/install them if so?&lt;/P&gt;</description>
      <pubDate>Tue, 06 Jan 2015 02:52:27 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7447#M329</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2015-01-06T02:52:27Z</dc:date>
    </item>
    <item>
      <title>Re: SSLPeerUnverifiedException with Android SDk</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7448#M330</link>
      <description>&lt;P&gt;I'm having the same problem, on a Samsung tablet running Lollipop. On the same device, the DropBox app itself works fine.&lt;BR /&gt;
Is there a clear work-around?&lt;/P&gt;</description>
      <pubDate>Mon, 01 Jun 2015 22:37:53 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7448#M330</guid>
      <dc:creator>William M.46</dc:creator>
      <dc:date>2015-06-01T22:37:53Z</dc:date>
    </item>
    <item>
      <title>Re: SSLPeerUnverifiedException with Android SDk</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7449#M331</link>
      <description>&lt;P&gt;[For anyone following along, William posted about this issue with more details in a new thread so we'll follow up there: &lt;A href="https://www.dropboxforum.com/hc/communities/public/questions/203848175-SSLPeerUnverifiedException-from-DropboxAPI-in-Android" rel="nofollow noreferrer"&gt;https://www.dropboxforum.com/hc/communities/public/questions/203848175-SSLPeerUnverifiedException-from-DropboxAPI-in-Android&lt;/A&gt; ]&lt;/P&gt;</description>
      <pubDate>Tue, 02 Jun 2015 03:18:08 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/SSLPeerUnverifiedException-with-Android-SDk/m-p/7449#M331</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2015-06-02T03:18:08Z</dc:date>
    </item>
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