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Date: Tue, 1 Apr 2008 11:48:25 +0200
From: "Ronald Brakeboer" <mac_che@...mail.com>
To: <john-users@...ts.openwall.com>
Subject: RE: passwords with fixed position characters and numbers

Thanx Solar!

And thanks for the explanation of me-sort-of-trying-to-write-a-valid-code. 
I knew it wasn't ok, but after all, I learned al lot of it because of your
explanations.
Here are some results after messing with some options in John and Sippcrack
together.
(Let's say historical puposes) 

$Benchmarks:
Because I have a 1.8Ghz Dualcore AMD with 3 gig of memory (work is fun
sometimes)
and Solar tried it on a P3 1 gig...and generated +-1.000.000 passwords, that
was the number to achieve at the least minimum. 
External ouput on screen....I knew that would be slow....           3.000
/s     //or so..gave up immediately :-) 
External ouput (--stdout) on Guest Virtual Machine (Backtrack2): +-30.000...
/s     //hmm...we're getting somewhere
External Output (--stdout) on Win Vista (Hate it)
+-30.000.... /s    // hm...something is not right
External output on Livecd Backtrack2...
+-30.000...../s    // Gotta read all the options again...  
With option --stdout=8 > filename
+-3.235.000...../s    ///Yeay!!! Really gotta donate this guy something


About the script and to see I can follow what it does:
To get an output of 0000aaaa (reversed output) I have to reverse a part of
code into: 
.............

/* This defines the character sets for different character positions for
reversed output of original script */
	pos = 0;
	while (pos < 4) { 
		ofs = pos++ << 8;

		i = 0;
	      c = '0';					   
		while (c <= '9')
			charset[ofs + i++] = c++;	
		charset[ofs + i] = 0;
	}
	
	while (pos < length) {
		ofs = pos++ << 8;
		i = 0;
		c = 'a';

		while (c <= 'z')
			charset[ofs + i++] = c++;

		c = 'A';

		while (c <= 'Z')
			charset[ofs + i++] = c++;
		charset[ofs + i] = 0;
}
~....................................~

I will try, I gotta have some sleep now, a miracle (a baby) is coming in
within a few weeks..or days..who knows...




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