![]() ![]() MD5 is broken and doesn't even provide that any more. This is a way for you to verify that you have the exact same file as OP, and nobody has modified it in any way.Ī (good) hashing algorithm doesn't guarantee anything, it just gives you a high probability that you have the same file. MD5 is a fast hashing algorithm so it is more vulnerable to certain types of attack than a slow one, but you can't take a hash and algorithmically determine what input produced it.īUT an MD5 hash of a file is just a unique signature for that file. MD5 is not a secure hashing algorithm and is easily reversed.Ī hash cannot be reversed. Increase the folder size to say 6TB and 15,000,000 files/folders, you'll definitely see the differences. So 6 minutes quicker with EMCopy, with the same attributes being copied, same number of threads, and permissions. Security Descriptor Setting(s) done: : 63477Īmount of copied byte(s) : 30 GB (32 730 088 649 Byte(s)) Log file : /log:t:\emcopy_test_same_thread.log Total Copied Skipped Mismatch FAILED Extras Let me state that should not be a bench mark, many factors can change the outcome of these tests, but I ran the tests on the same system, and with the same processes running both times. Here is a test I did, just for this post, EMCopy vs.
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