Comment 6 for bug 1397652

The man page is a bit confusing as said previously. Even though the configuration section speaks about setting permissions to 644, the following can be found from the description section:

       Writing to /dev/random or /dev/urandom will update the entropy pool
       with the data written, but this will not result in a higher entropy
       count. This means that it will impact the contents read from both
       files, but it will not make reads from /dev/random faster.