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barcode [2007-06-08 08:44] – external edit 127.0.0.1 | barcode [2007-06-18 13:59] (current) – nik | ||
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==== [BARCODES] ==== | ==== [BARCODES] ==== | ||
- | First of all, let me stress the importance of cracking in | + | First of all, let me stress the importance of cracking in |
our everyday life. Cracking it's not just about software, it's | our everyday life. Cracking it's not just about software, it's | ||
about information, | about information, | ||
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- | + | You must learn to discerne cracking possibilities all around | |
- | You must learn to discerne cracking possibilities all around | + | |
yourself, and believe me, the development of this ghastly society | yourself, and believe me, the development of this ghastly society | ||
brings every day new codes, protections and concealing | brings every day new codes, protections and concealing | ||
mechanismes. | mechanismes. | ||
- | + | All around us grows a world of codes and secret and not so | |
- | + | ||
- | All around us grows a world of codes and secret and not so | + | |
secret patterns. Codes that are at times so familiar and common | secret patterns. Codes that are at times so familiar and common | ||
that we do not even notice them any more... and yet they are | that we do not even notice them any more... and yet they are | ||
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possibilities. | possibilities. | ||
- | + | Let's take as an striking example BARCODES... those little | |
- | + | ||
- | Let's take as an striking example BARCODES... those little | + | |
lines that you see on any book you buy, on any bottle you get, | lines that you see on any book you buy, on any bottle you get, | ||
on any item around you... do you know how they work? If you do | on any item around you... do you know how they work? If you do | ||
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[BARCODE HISTORY] | [BARCODE HISTORY] | ||
- | + | Let's begin with a little history. Universal Product Code | |
- | + | ||
- | Let's begin with a little history. Universal Product Code | + | |
(UPC) was adopted for commercial use by the grocery industry in | (UPC) was adopted for commercial use by the grocery industry in | ||
the USA. Among the advantages were a rapid, accurate and reliable | the USA. Among the advantages were a rapid, accurate and reliable | ||
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- | + | The manufacturer' | |
- | The manufacturer' | + | |
identifies products. These numbers are managed by the Uniform | identifies products. These numbers are managed by the Uniform | ||
Code Council in Dayton, Ohio for the States and Canada and by the | Code Council in Dayton, Ohio for the States and Canada and by the | ||
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- | + | BARCODES are the only thing an automated casher needs to see | |
- | BARCODES are the only thing an automated casher needs to see | + | |
on a product to calculate its price and automatically catalogate | on a product to calculate its price and automatically catalogate | ||
the sold merchandise... imagine (just imagine it :=) coz it would | the sold merchandise... imagine (just imagine it :=) coz it would | ||
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- | + | The new label would mean for the casher something like | |
- | The new label would mean for the casher something like | + | |
"cheap wine from Bordeaux, France, cost so and so, everything | "cheap wine from Bordeaux, France, cost so and so, everything | ||
it's OK, do not worry" | it's OK, do not worry" | ||
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Each barcode label has 13 values, from #0 to #12 (that' | Each barcode label has 13 values, from #0 to #12 (that' | ||
code, the UPC american one has only 12, from #0 to #11). | code, the UPC american one has only 12, from #0 to #11). | ||
+ | |||
#0 and #1 indicate the origin of the product. | #0 and #1 indicate the origin of the product. | ||
#2 to #11 give the article code | #2 to #11 give the article code | ||
#12 (the last and 13th one) is a checksum value, that | #12 (the last and 13th one) is a checksum value, that | ||
| | ||
+ | |||
How is it calculated? #12 is calculated in 4 steps | How is it calculated? #12 is calculated in 4 steps | ||
+ | |||
VALUE A: You sum odd position numbers (# | VALUE A: You sum odd position numbers (# | ||
VALUE B: You sum even position numbers and multiply by 3 | VALUE B: You sum even position numbers and multiply by 3 | ||
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- | Now watch some labels yourself... see the difference between the | + | Now watch some labels yourself... see the difference between the |
numbers left and the numbers right? The first " | numbers left and the numbers right? The first " | ||
barcode is coded using sets A and B, the second " | barcode is coded using sets A and B, the second " | ||
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- | Write a small program to print whichever codebar you fancy | + | Write a small program to print whichever codebar you fancy |
(or whichever your mall uses) in whichever size on whichever sort | (or whichever your mall uses) in whichever size on whichever sort | ||
of label you (or better your targets) fancy... it's quickly done | of label you (or better your targets) fancy... it's quickly done | ||
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- | A small word of caution... crack only ONE item at time and | + | A small word of caution... crack only ONE item at time and |
try it out first with the SAME label for the same product... i.e. | try it out first with the SAME label for the same product... i.e. | ||
the correct code for that item, but on your own label. If it goes | the correct code for that item, but on your own label. If it goes | ||
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- | CRACKING POWER! It's true for barcodes, for Telecom bills, | + | CRACKING POWER! It's true for barcodes, for Telecom bills, |
for Compuserve accounts, for Amexco cards, for banking cheques | for Compuserve accounts, for Amexco cards, for banking cheques | ||
(do you know what MICR is? Magnetic Ink Character Recognition... | (do you know what MICR is? Magnetic Ink Character Recognition... | ||
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- | Begin with barcodes: it's easy, nice and pretty useful! Live | + | Begin with barcodes: it's easy, nice and pretty useful! Live |
in opulence, with the dignity and affluence that should always | in opulence, with the dignity and affluence that should always | ||
distinguish real crackers. Besides... you should see the | distinguish real crackers. Besides... you should see the | ||
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- | The (c) Instant access routines are a commercial protection | + | The (c) Instant access routines are a commercial protection |
scheme used to " | scheme used to " | ||
- | have been encrypted on CD- | + | have been encrypted on CD-ROMs which are distributed (mostly) through reviews. |
- | ROMs which are distributed (mostly) through reviews. | + | |
- | This is an ideal cracking target: it's commercial software, | + | This is an ideal cracking target: it's commercial software, |
complete, uncrippled and of (relatively) prominent quality, that | complete, uncrippled and of (relatively) prominent quality, that | ||
you can get in tons for the price of a coke. Obviously this kind | you can get in tons for the price of a coke. Obviously this kind | ||
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- | This cracking is intended as an " | + | This cracking is intended as an " |
" | " | ||
relatively deep " | relatively deep " | ||
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- | You 'll obtain the missing lessons IF AND ONLY IF you mail | + | You 'll obtain the missing lessons IF AND ONLY IF you mail |
me back (via anon.penet.fi) with some tricks of the trade I may | me back (via anon.penet.fi) with some tricks of the trade I may | ||
not know that YOU discovered. Mostly I'll actually know them | not know that YOU discovered. Mostly I'll actually know them | ||
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+ORC <a href=" | +ORC <a href=" | ||
+ |