Rearray binary tool

This high performance tool rearrays its input adding a second dimension of size n bits/8 bits.

It is useful to test serial correlation by estimating the entropy of each output.

#rearray each 8/32 bits in 4 files

output[0][0] = input[0] >> rearray.0

output[1][0] = input[1] >> rearray.1

output[2][0] = input[2] >> rearray.2

output[3][0] = input[3] >> rearray.3

output[0][1] = input[4] >> rearray.0

output[1][1] = input[5] >> rearray.1

output[2][1] = input[6] >> rearray.2

output[3][1] = input[7] >> rearray.3

Use

#rearray each 8/16 bits in 2 files

rearray-16 input


#rearray each 8/32 bits in 4 files

rearray-32 input


#rearray each 8/64 bits in 8 files

rearray-64 input


#rearray each 8/128 bits in 16 files

rearray-128 input


#rearray each 8/256 bits in 32 files

rearray-256 input


#rearray each 8/512 bits in 64 files

rearray-512 input

Recommended use

#ncomputers.org/entropy

for b in {16,32,64,128,256,512}

 do rearray-$b input

 for f in rearray.*

  do entropy 1 $f

 done

done

rm rearray.*

Install

#ncomputers.org/debian

apt-get install rearray

#makefile as su

make install

Compile

g++ -O3 -std=c++11 rearray.cpp -o rearray-16 -D Bits=16

g++ -O3 -std=c++11 rearray.cpp -o rearray-32 -D Bits=32

g++ -O3 -std=c++11 rearray.cpp -o rearray-64 -D Bits=64

g++ -O3 -std=c++11 rearray.cpp -o rearray-128 -D Bits=128

g++ -O3 -std=c++11 rearray.cpp -o rearray-256 -D Bits=256

g++ -O3 -std=c++11 rearray.cpp -o rearray-512 -D Bits=512