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Windows 7: Checksum problem Windows 7

20 Feb 2010   #11
pulpfiction

Windows 7 Ultimate
 
 

My only concern is: If the promotional and the retail versions are the exactly same, why is there a difference in the checksums.


My System SpecsSystem Spec
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20 Feb 2010   #12
dmex

 

Quote   Quote: Originally Posted by pulpfiction View Post
Quote   Quote: Originally Posted by dmex View Post
Quote   Quote: Originally Posted by pulpfiction View Post
My SHA1 for the ISO I made from the DVD
If you made the ISO yourself then it wont match
Why would that be if both were made under Windows and both in the ISO format?
When you downloaded a file, your not creating it but merely copying it so the hash will match.

The ISO you created from the DVD is not the original file so it doesn't match the original hash, you created that file so it creates a new hash.

If anyone could create a file and have it match another file's signature that was created somewhere else then it defeats the point of hashing altogether.
My System SpecsSystem Spec
20 Feb 2010   #13
pulpfiction

Windows 7 Ultimate
 
 

Quote   Quote: Originally Posted by dmex View Post
Quote   Quote: Originally Posted by pulpfiction View Post
Quote   Quote: Originally Posted by dmex View Post

If you made the ISO yourself then it wont match
Why would that be if both were made under Windows and both in the ISO format?
When you downloaded a file, your not creating it but merely copying it so the hash will match.

The ISO you created from the DVD is not the original file so it doesn't match the original hash, you created that file so it creates a new hash.

If anyone could create a file and have it match another file's signature that was created somewhere else then it defeats the point of hashing altogether.
Oh. I never knew about this, I thought that considering the format was the same in both the cases (ISO), the SHA1 would match. Thanks.
My System SpecsSystem Spec
.

20 Feb 2010   #14
gregrocker

 

They sent you the Ultimate Signature edition, without the signature.

It may be their standard promo copy.
My System SpecsSystem Spec
Reply

 Checksum problem Windows 7




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