Redhat Linux 7.2/8 password encryption

i m currently developing a "Linux explorer" which allows one to access and edit Linux drives under windows OS. I want to enforce the same login / file access restrictions as when on an active linux system, atleast to the extent that only the authorized user can access and modify the files even under windows "linux explorer".
Can somebody tell me what sort of encryption is done under Linux systems (i suppose its crypt(3)-des variant-using salt) and can I implement the same algo under windows (using c++ in windows) to provide user authentication at this level.