I have selected some random testing that I have used in this post.
First I generated 10 keys and created a file with all the keys, this file will be the input for the tests. This capture don't show all the file because this is very long.
The next test is I made a compress my file, and this is the result:
So, we don't have security keys, because the file is compressed 16%.
In conclusion we can say that my keys are not secure because only passed 1 test of 3.