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Large Files
Hi Guys,
Great products btw! Just to let you know your SHA-1 on files larger than 2GB is way off, and I have tested this on three versions, 1.4, 1.6.0.4 and beta version 2.
Ver 1.4 always gives me a result of DA39A3EE5E6B4B0D3255BFEF95601890AFD80709 for files larger than 2gb
Ver 1.6.0.4 throws an exception for file larger than 2gb
Ver 2 has a correct CRC-32 and MD5 but SHA-1 is way off.
On smaller files, all works fine on all versions I tested.
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Are both the SHA-1 on the General and Hashes tab wrong or only the second one?
The General tab uses a implemention we created to calculate multiple hashes readitg the file only once, while the Hashes tab is based on an older codebase. I took a look at that and indeed found it to be using a routine limited to 2 GB.
Since you mentioned only the three on the General tab, I'm a bit confused since if at all I would have suspected the other ones to be broken ;)
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The SHA-1 values on both tabs are identical and incorrect...
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Which tool do you compare it against to be sure that it is incorrect?
As I said, both are separately written implementations. And I just compared to what HashTab outputs and if ours are broken, that one would be, too, because it has the same output on a 7 GB test file.
(btw, I remember that Shareaza has a different output for SHA1, but that was independent of size and since it was a single thing I compared against a few other tools back then, I assumed it was a Shareaza bug)
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I used an application called HashCalc, very basic but it confirmed the SHA-1 hash correctly with what was published on the MSDN site for the ISO I was downloading.
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http://img149.imageshack.us/img149/6...ealyzerbug.jpg
For some reason mine are different, I am on version 2.0.0.0, "File analysis tool 2.0.0.10".
I am running Vista Ultimate on a 32 bit Core 2 Duo if thats of any help.
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The internal build is 16, but I don't remember changes to SHA support since then. But I'm adding SHA-256 etc. support next. Hope to see something when I do that. I'll surely remember to test with files as large as possible ;)
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SHA-1 Hash is Incorrect
I have the same problem. I downloaded VMware. The Web page posts MD5 and SHA-1 hashes, and Microsoft's FCIV utility says they are correct. Filealyzer gets the MD5 correct but the SHA-1 wrong.
I have attached images of what I see. I am running Filealyzer 2.0.0.0 on Windows 7 RC build 7100.
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Image links