This is a small and simple and fast generator of all possible CPF numbers. It is written in just 50 lines of C code, and the compiled binary has about 9KB of size.
It takes less than a minute to generate all possible CPF numbers.
$ time ./cpf-generator > /dev/null
real 0m36.693s
user 0m35.932s
sys 0m0.704s
That means 1 giga-numbers (1000000000 or 10^9), for a total of 12GB (each number has 11 digits, plus the newline).
$ ./cpf-generator | wc
1000000000 1000000000 12000000000
The CPF numbers are printed without any special formatting.
$ ./cpf-generator | head -n 3
00000000000
00000000191
00000000272
Alternatively, you can easily change the code to print formatted numbers.
$ ./cpf-generator | head -n 3
000.000.000-00
000.000.001-91
000.000.002-72
Sure, I could have added a command-line argument to toggle the behavior… But so far I didn't (for simplicity and for laziness).
- C compiler. Tested with
gcc. Should work with any C compiler. If you use another compiler, please tweak theMakefile.
Just run make. Edit the Makefile if you want to tweak the compiler parameters.
If you are on Windows, you'll want to add the .exe extension to the compiled binary.
I wanted one, I tried searching online, but couldn't find anything. Then I decided to write my own. That's also an opportunity to write some C code.
The output of this tool can be used as a wordlist input for any brute-force password cracking tool. This, then, can be used to benchmark if your encryption or if your passwords are strong enough.