First question is on what platform, Intel or other + are you asking about processing via PHP or just in general?

The premiere tool is BinDiff (http://www.sabre-security.com/products/ screens_bindiff.html) ...

A nice toolset (can probably be patched for PHP use):
http://radare.nopcode.org/wiki/index.php?n=Utils.Bindiff

- Jon

On Jun 23, 2007, at 9:03 AM, Aniesh joseph wrote:

Hi,

I have two binary file name bunary1 & binary2. I need to compare these two files and find following

changed byte +  location +old value +new value

The files are opened in read binary mod and returns each byte. Can someone suggest any method to compare bytes?

Thanks.

Regards
Aniesh
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