From what we've seen the PRIVATE KEY is to be kept at the original computer and
 never sent to any-one else.

One way to hide the key is to put it in a picture.

Take the picture below:

Looks Normal  ...  nothing special

But look on the bottom corner...... 

Now lets blow that up and take a close look

The colour codes RGB ( #657244 ) could be the hidden keys



Now do the test.

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