Comments on: Single File http://www.exactfile.com Making sure that what you hash is what you get. Sat, 10 Dec 2011 22:28:47 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Ramon Zarat http://www.exactfile.com/using-exactfile/single-file-checksums/comment-page-1/#comment-647 Ramon Zarat Mon, 28 Jun 2010 18:13:10 +0000 http://www.exactfile.com/?page_id=110#comment-647 Hi. I need to create dummy files with specific CRC32 to use in MAME (http://mamedev.org/). From there, I wonder if it would be possible to "reverse-engineer" a file uniquely from its CRC32 and known size... More specifically, I would like to create a file 16KB (16 384 bytes) long that would have c25be3c3 for CRC32. I imagine that there is a finite number of characters combination within a 16KB file that can specifically generate c25be3c3 for its CRC32, I just don't know how many. I'm not even sure if what I'm asking is mathematically possible! LOL Thanks for the great software! Hi.

I need to create dummy files with specific CRC32 to use in MAME (http://mamedev.org/). From there, I wonder if it would be possible to “reverse-engineer” a file uniquely from its CRC32 and known size…

More specifically, I would like to create a file 16KB (16 384 bytes) long that would have c25be3c3 for CRC32. I imagine that there is a finite number of characters combination within a 16KB file that can specifically generate c25be3c3 for its CRC32, I just don’t know how many. I’m not even sure if what I’m asking is mathematically possible! LOL

Thanks for the great software!

]]> By: ayeayre http://www.exactfile.com/using-exactfile/single-file-checksums/comment-page-1/#comment-616 ayeayre Fri, 21 May 2010 13:08:25 +0000 http://www.exactfile.com/?page_id=110#comment-616 second that, portable copy (no install) second that, portable copy (no install)

]]> By: hol4ko http://www.exactfile.com/using-exactfile/single-file-checksums/comment-page-1/#comment-514 hol4ko Sat, 20 Feb 2010 23:57:44 +0000 http://www.exactfile.com/?page_id=110#comment-514 It would be nice if you create a Portable Copy of this Great Software ! It would be nice if you create a Portable Copy of this Great Software !

]]> By: Mike http://www.exactfile.com/using-exactfile/single-file-checksums/comment-page-1/#comment-168 Mike Sat, 25 Apr 2009 04:53:42 +0000 http://www.exactfile.com/?page_id=110#comment-168 This report is very useful, in fact its 'too useful'. Suggestion: You should be able to save these reports as a separate checksum file (Such as an MD5 with the meta data commented out). Preferably, you should be able to saved them as the same file name with a different extension, in the same directory. Also, the option/ability to not use full path output (like that in 'Create Digest') would be excellent. My apologies if this is the wrong place to make this suggestion. This report is very useful, in fact its ‘too useful’.

Suggestion: You should be able to save these reports as a separate checksum file (Such as an MD5 with the meta data commented out). Preferably, you should be able to saved them as the same file name with a different extension, in the same directory. Also, the option/ability to not use full path output (like that in ‘Create Digest’) would be excellent.

My apologies if this is the wrong place to make this suggestion.

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