md5 file

[vinciovincio]

Hi ,
I ned to decrypt the file in attachment. Is the run comand of a lab machine. I ned edit the istruction of this file to use this machine!!
Please help me is very important!
Tank you in advance

[kovik]

No idea what you are saying. If this file is encrypted with MD5, as far as I know, it's irreversible.

[electronik]

There are rainbow tables but I guess that the original string is too long for that...

[vinciovincio]

And so there are not possibility??Pl ease I can pay for the work!!!its very important!

[Dormilich]

if it really is MD5, there is no chance to convert that (except you have time and a very good computer)

looking at the text content, it doesn’t seem to be hashed … would have been only ASCII chars. so you should try to find out, what kind of code this actually is.

[Atli]

It's kind of odd, though. Something like 85% of that file is null characters.
Would be an odd encryption and even stranger compression.

[RedSon]

Wait, MD5 is a hash algorithm not an encryption algorithm. That means that it is irreversible. When you take some data and apply an MD5 hash to it, you cannot derive the original data from the hashed data at all. This is by definition of a hash.

Even if you had a super-computer and the best rainbow table and could find a corresponding MD5 hash, the clear-text value of the hash that you find may be different than what the text is originally.

Think of a hash as a "signature" , when you write a document on a paper at the end you sign it. Your signature tells whoever looks at the document after you that you have had this paper in your hands and inscribed your name on the bottom. It is not encryption.

I would expect an "encrypted" file to have various null values in it and for a large part of it to have null characters or other garbage in it. I would not expect a zip file to have the same. However, compressing an encrypted file with any sort of decent compression is virtually impossible because of the increased randomness of the file. Remember compression works by finding patterns and replacing those patterns with smaller tokens. One of the goals of encryption is to remove all statistically significant patterns to prevent attacks. So to compress a sufficiently encrypted file would result in almost the whole file *not* being compressed.

Either this OP doesn't know what they have in their hands or they have been misinformed by whomever gave them the file.

[kovik]

Right. Hashing means that it is possible for the same hash to be generated by multiple strings. Getting a string that matched the hash will not necessarily get you the right string. MD5 is 32 characters (I think), so the chances of you finding an entire file that match the MD5 is slim, and even slimmer to find the right file.

[RedSon]

Okay I examined the file, its not encrypted, nor does it even have an MD5 hash in it.

Your file starts off with ABIF which indicates its an ABIF file. The next two bytes comprise the version number of the ABIF file. In this files it is v1.1. The rest of the file describes the directory entry for the file and the data for whatever genetic analyzer you are working with.

All you need to do is change the file extension to .abif or .bif or whatever it is supposed to be.

Next time, you see the person who gave you this file, you can be sure to kick them in the shin for me.

http://www.appliedbiosystems.com/support/software_community/ABIF_File_Format.pdf

[vinciovincio]

Great Redson!!! Yo put me on the good direction!
Now I am trying a Perl extension: Bio-Trace-ABIF-1.02 to open it...
see you soon

[vinciovincio]

strange file pc to mac

Hi, I have this file (in attach). it is in pc format and I ned to translste it in mac. The normal conversion tool do not work on this file...I ned to red it in this software: http://www.appliedbiosystems.com/sup...7/installs.cfm
as a "run module"
tank you for any response!!!!
(Pleae it is very important!!)
Vincenzo

[RedSon]

What?

There is no such thing as translating a file from PC to Mac. Those aren't file formats, those are operating systems.

Here is some concise information from New Mexico Tech: http://infohost.nmt.edu/tcc/help/unix/file.html

[vinciovincio]

abif

and so..when I put this file in the mac pc with the program of the link...the file have the simbol of Pc printed on...and the program do not read this file. Any idea?
please!!!

[RedSon]

If the file is a properly formatted ABIF file then the program that reads ABIF files should have no problems.

I don't know what the "symbol of PC printed on it" means. If a file has some kind of icon that looks like a PC I wouldn't assume that, that file only works on a PC. If I made a file with an icon of a teddy bear, does that mean that it only works if I put it on my teddy bear?

[vinciovincio]

teddy bears

jajja
for example the file attached is for the mac software and infact it read normally the file....do yoiu note any difference?
tank you