Over a million developers have joined DZone.

WCF with 256 bit SSL

DZone's Guide to

WCF with 256 bit SSL

· Java Zone
Free Resource

Are you joining the containers revolution? Start leveraging container management using Platform9's ultimate guide to Kubernetes deployment.

Recently I had to call a Java web service from Wcf. The service was secured with a 256-bit ssl certificate. Every request I made was rejected with a 401 Unauthorized response.

I then used this site to check what encryption strength my machine supports:

It seemed my pc is configured to only allow 128 bit connection.

Luckily I have found this link which explains how to configure windows to use 256-bit Ssl (Vista only). It seems the problem is in the windows defaults and not in Wcf. This changed the result in IE:

and also the Wcf client worked. The strange is that the setting that needs to be changed should only affect the order of the supported algorithms. So if the server requires a 256-bit OR a 128-bit key, the default setting would suggest 128 first. But if the server only allows 256-bit I would expect this to work since this is a supported configuration, just not the first in order. Either way the fix made it work.

Using Containers? Read our Kubernetes Comparison eBook to learn the positives and negatives of Kubernetes, Mesos, Docker Swarm and EC2 Container Services.


Published at DZone with permission of Yaron Naveh, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.


Dev Resources & Solutions Straight to Your Inbox

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.


{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}