4 # Perform primitive binning into 16-bit bins (take 16bits of randomness
5 # at a time) and see if the distribution is flat. The output should be
6 # checked by eye - are all the numbers roughly the same?
8 # Redirect the output from this to a file - and go to the movies while
9 # it runs. This program is a CPU Hog!
14 for ($i = 0; $i < (1024*64); $i++) {
15 open(BIN, "/dev/urandom") || die "Cannot open /dev/urandom - $!\n";
16 $len = sysread(BIN, $a, 512);
19 for ($j = 0; $j < $len; $j += 2) {
20 $k = unpack("S", substr($a, $j, 2));
26 for ($i = 0; $i < 1024*64; $i++) {
27 printf("%.2X ", $bin[$i]);