raboof/pekko
1
0
Fork 0
Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 10

=doc explain hostname verification, recommend upgrading

Browse source
This commit is contained in:
Konrad Malawski 2015-12-21 13:39:15 +01:00
parent 8cf86e693c
commit d71c55174c
2 changed files with 18 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

15
akka-docs-dev/rst/scala/http/client-side/https-support.rst
View file

@ -44,18 +44,21 @@ to rely on the configured default client-side ``HttpsContext``.
If no custom ``HttpsContext`` is defined the default context uses Java's default TLS settings. Customizing the
``HttpsContext`` can make the Https client less secure. Understand what you are doing!
Hostname verification on Java 6
-------------------------------
Hostname verification
---------------------
Hostname verification proves that the Akka HTTP client is actually communicating with the server it intended to
communicate with. Without this check a man-in-the-middle attack is possible. In the attack scenario, an alternative
certificate would be presented which was issued for another host name. Checking the host name in the certificate
against the host name the connection was opened against is therefore vital.
The default ``HttpsContext`` enables hostname verification. Akka HTTP relies on a Java 7 feature to implement
the verification. To prevent an unintended security downgrade, accessing the default ``HttpsContext`` on Java 6
will fail with an exception. Specifying a custom ``HttpsContext`` or customizing the default one is also possible
on Java 6.
The default ``HttpsContext`` enables hostname verification. Akka HTTP relies on the `Typesafe SSL-Config`_ library
to implement this and security options for SSL/TLS. Hostname verification is provided by the JDK
and used by Akka HTTP since Java 7, and on Java 6 the verification is implemented by ssl-config manually.
.. note::
We highly recommend updating your Java runtime to the latest available release,
preferably JDK 8, as it includes this and many more security features related to TLS.
.. _Typesafe SSL-Config: https://github.com/typesafehub/ssl-config
.. _akka.http.scaladsl.Http: @github@/akka-http-core/src/main/scala/akka/http/scaladsl/Http.scala