Posted by, XlogicX on August 29, 2008 at 7:41 pm
Assignment:
Step 1: Sign up for VIP cards (use fake info) in the following 4 stores:
Albertsons
Frys
Safeway
Bashas
Step 2: When you go to the store, try using a VIP card for the wrong store: Example: go to Frys and use your Safeway club card.
Step 3: Report to the forums. Please report the what store the vip card is supposed to be for, the first 6 digits of the barcode, what store you tried it on, and if it worked or not.
Step 4: Goto Step 2 Until research is done
Whoever submits their results on the forums will be listed below as members of this project. Please don’t make stuff up either, we want a working product…well I do atleast. Don’t worry about being secretive with this. I sometimes prefer going to normal checkout (not self-checkout). I just say “hey, I’m curious, but could you see if this VIP card works.” Or just tell them your doing a research project for school. Honestly, with most of them, you don’t even have to give them a story. But then again, those of you that have used the first generation VIP card know that. I will have a Open Office Calc file with the results in progress of the data collected below.
Continue reading “Phoenix 2600 VIP 2.0 Project” »
Posted by, XlogicX on August 29, 2008 at 7:29 pm
I have the original bitmap file and .doc file available. If you just want to print the barcode up, I recommend loading the .doc file, erasing the text if you want, and printing the barcode graphic.
Posted by, XlogicX on August 28, 2008 at 11:16 pm
There are a few ways to purchase a product with the price of another. Before I talk about that though, I’ll review the meaning of the bars and numbers on the bar code. After that, I’ll explain tricks like “inking” and the “sticker.”
Review: What bar-space combination will make a meaningful number? For UPC-A, there is about 23 different meaningful characters: 1 start guard, 1 center guard, 1 stop guard, 10 left hand data characters, and 10 right hand data characters. I specify right and left because the code is different on each side. Imagine the data characters as 7-bit binary words; where the 0 is a space, and a 1 is a line.
Notice that all left-hand characters start with a 0 and end with a 1. Also, the right hand side is just the compliment of the left-hand side; so if the bit were a 0 on the left for a certain character, it would be a 1 on the right for the same character. Another thing to notice is that there are two variable width spaces and lines per character, no more, no less.
Continue reading “BarCode Tricks” »
Posted by, XlogicX on July 1, 2005 at 8:27 pm
We met in the back of Borders this time (we were on the schedule!). LosT brought his soldering station and some embedded network components to solder together, so we had a little soldering workshop. People that didn’t know how to solder, and wanted to know, knew by the time they left. We did some general talking about embedded systems and talked about Make magazine a little. There was talk about defcon 13. We later went to Nicks, surprisingly enough, I think the group got bigger when we met there. While at Nicks, Nak busted out his ham gear and evil1 and Nak were talking to random people the could find through the waves. We had some talk about the stumble upon toolbar. Lots of creative discussion about barcodes (later in the night). After a while, Nak came back around and we had some pre-4th of July celebrations with a block of sodium. Maybe next time: Soap in a microwave }:>
Attendance count: About 15-20+
Posted by, XlogicX on December 3, 2004 at 5:31 pm
It seems the theme of this meeting was barcodes. I brought in about 30 “universal” VIP cards that have a VIP code for 3 different grocery stores, the other barcode is an “easter egg.” RAX brought his scanner and a laptop equip with some java software that can decode the 2d barcode on the back of a drivers ID, so we played with that. dec33var brought a few 1d barcode scanners with him. Zapperlink had some great info on Krypto. Also rhy0t brought some lock picks and a couple locks, we tried picking them for a while, she was the only one to get both locks, a few of us got the easier master(?)lock (I got it, yay me).
Attendance count: About 12-15
