Problem
You want to set your own encryption key.
Solution
Use Crypt::setKey().
Crypt::setKey($key);
Discussion
This key will be used for subsequent Crypt::encrypt() and Crypt::decrypt() calls.
But only in the current request.
By default Laravel automatically uses Config::get('app.key') as the key for encryption. If you change the key, any subsequent calls to Crypt::decrypt() will only only work for values that have been encrypted with the same key.
