yannick gingras ygingraseclipsysqcca begin pgp signed message hash sha1 hi wondering techniques make cdkey like unbreakable either giving cancelation date periodic renewal server using self md5 signature resulting executable know must easy whole software piracy problem would resolved must way make really hard break anyone hints issue thanks yannick gingras network programer escwq begin pgp signature version gnupg v106 gnulinux comment info see httpwwwgnupgorg id8dbqe9bpyzuv7g0dnfoqraqbhakchtekxwd8zdmwfokakjxnnpknwacgtxz7 v3bbabue0vxuy86fhn9ifs uwqj end pgp signature thu 29 aug 2002 174627 0400 secure sofware key