[sword-devel] SSL mystery @ crosswire.org

Chris Umphress umphress at gmail.com
Thu Sep 17 10:23:40 EDT 2020

If you pull the SSL certificate for an IP address, the server typically
sends you the default, configured certificate.

I am curious about why Android 5 would request the certificate by IP
address only. Does it not support the Server Name Indication?:


Chris Umphress

On Thu, 17 Sep 2020 16:19:25 +0300
Tuomas Airaksinen <tuomas.airaksinen at gmail.com> wrote:

> When I type
> host crosswire.org it gives me ip
> When I fetch ssl cert for that ip (openssl s_client -connect
>, it gives cert with CN www.ancc-gan.de.
> This confuses And Bible on Android 5 (lollipop), as host name checking will
> fail to
>  javax.net.ssl.SSLPeerUnverifiedException: Certificate for <crosswire.org>
> doesn't match any of the subject alternative names: [www.ancc-gan.de]
> In more recent Android versions it works properly.
> Now for Android 5 I have made exception such that host name verification is
> bypassed, but that's not neat nor secure.
> -- 
> T: Tuomas

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