/challenges-projects/design-challenges/enchanted-objects/b/blog/posts/about-securityBasic Security Principles From the comments to my first post I&#39;ve learned that there are different perception of security. Therefore I decided to explain when I call a system to be secure. In general security tries to reach following goals:&amp;nbsp...en-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/enchanted-objects/b/blog/posts/about-securityMon, 23 Mar 2015 21:36:15 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ec86e8b7-274b-4a2d-a724-0117c74fa468Workshopshed1<p>I remember when I was a kid there was a cereal company who had a club for which you needed to send away to get membership. There were coded messages on the back of the packets. At the age of 8 I did a frequency count and confirmed it was probably a simple substitution cipher. 3 packets later and I had all but 2 letters decoded.</p><p>I also had a situation at work where I knew that an XOR algorithm was being used to obscure some code. I used a Word macro and some plain text dictated over the phone to decrypt the source code.</p><img src="https://community.element14.com/aggbug?PostID=20254&AppID=117&AppType=Weblog&ContentType=0" width="1" height="1">