Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: The hashes - your still at it

14 May 2009   #1
Termana

Windows 7 Ultimate x86 7600 RTM
 
 
The hashes - your still at it

Come on people, this is nonsense now. If you continue to believe that two different files are able to have the same hashes, you have to be kidding yourself. Yes, when things are hashed, there is a tiny chance that 2 can be the same. However, there isn't just 1 hash we are talking about here, its 2 hashes. Thats like a 1 in a billion chance that 2 pieces of data could have the same 2 hashes. And then also factor in that its not very likely that the changes made to the builds would make just that right combination to get the 2 hashes the same. The hashes are not built on to the builds, the hash checking programs load the file thats being checked into memory and then run a mathematically irreversible algorithm (due to truncation) on it and come out with the hash - you can't "tamper" with this. If you can't wrap your head around this simple thing you are just as smart as the people who believe you can compress gigabytes of data in to mere megabytes. Sorry to burst your bubble.


My System SpecsSystem Spec
.

14 May 2009   #2
RST101

Windows 7 Ultimate x64.
 
 

Totally agree with you on this one Termana. It would also take a very very very long time to achieve.

Some might come on to argue the difference with us but there you go.
My System SpecsSystem Spec
14 May 2009   #3
Dwarf

Windows 8.1 Pro RTM x64
 
 

An illustration showing how file size and content affects hash values. Also illustrates the other file hashes available with Hash Tab v2.3.0

Basic Test file.
Name:  Capture.PNG
Views: 8
Size:  12.1 KB
Name:  Capture1.PNG
Views: 14
Size:  44.8 KB Name:  Capture1a.PNG
Views: 11
Size:  44.8 KB
Test file with fox and dog transposed.
Name:  Capture2.PNG
Views: 7
Size:  18.1 KB
Name:  Capture3.PNG
Views: 7
Size:  44.5 KB Name:  Capture3a.PNG
Views: 8
Size:  44.7 KB
Test file copied 4 times.
Name:  Capture4.PNG
Views: 9
Size:  20.4 KB
Name:  Capture5.PNG
Views: 7
Size:  55.3 KB Name:  Capture5a.PNG
Views: 10
Size:  55.5 KB


My System SpecsSystem Spec
.


Reply

 The hashes - your still at it




Thread Tools





Similar help and support threads
Thread Forum
Hashes, how to use them.
Hello friends. ...could someone help me for the below : Often when we download a large file, drivers or an .iso etc they give the Hashes MD5:, SHA-1 for to check the integrity of the file after (if I understood it well) My problem is that I cannot find them and I don't know where to look for...
General Discussion
Checking hashes or md5's of installed OS
How would one check the integrity of a downloaded OS if the original .iso is gone. Must have deleted the original .iso after a good DVD was burned. OS is now installed and I would like to verify that the original download is correct and complete. I know how to check the hashes or md5's but am...
General Discussion
How To? Help - check the hashes are correct on the iso
during the night i downloaded the x64 version of 7264 from Rs links,how do i check the hashes are correct on the iso file? plus what are the correct numbers? i understand this has been answered elsewhere but if its asked in its own thread then it will be easier for other people to find the...
General Discussion
Windows 7 RC hashes
Hello , Can anyone post legit windows 7 RC hashes ?? one more thing, how to check the hashes of the .iso which I want to download? Sorry for asking such Newbie question :(
General Discussion
Windows 7 RC - 7100 Hashes
X86 (32 bit) CRC32: E8A1C394 MD5: 8867C13330F56A93944BCD46DCD73590 SHA-1: 7D1F486CA569EFFFFB719CFB48355BB7BF499712 x64 (64 bit) CRC32: 58FB2BE0 MD5: 98341AF35655137966E382C4FEAA282D SHA-1: FC867FE1AB2E0A9796F9E4D155B44EA6998F4874
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 17:15.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App