Magnetic stripe card spoofer

Step 4 Create .wav file of stripe data

Finally, you need a a signal to send to the electromagnet. Edit the data array in the attached C++ program (written by geohot) to contain the data from the magnetic stripe that you want to emulate, and compile/run the program. It will output a file called text.wav that is your data file. Upload the file to your favorite music player (make sure it stays in .wav format), and you're in business!

There are two versions of the program in the zip that I've attached - one is for powerPC mac, and the other for PC/x86 mac.

If you are in need of some data to encode, see my other instructable.

Remember, don't be naughty. I'm not responsible for anything stupid/illegal you try do with this device.

Comments

[asconine]

There is an app for the iPhone called square and when you sign up for it they send you a card reader that plugs into your headphone jack ( see squareup.com). The way this app works is by converting the info on the mag-stripe into audio. So could you use an audio file recorded off of the Square card reader rather then using this C++ app to create one?

[Grazfather]

Yup, totally.

[Pooloop]

You could make a video tutorial explaining how to create the .Wav file

[Pooloop]

where a put the card code in the c++ code?

[tiroshboaz]

well, like seth3d I have compiled it in g++ and got the a.out file, but i can't find how to play the file, what am i doing wrong?

[bugmenot]

a.out is the binary executable file. Once you get the a.out file, run it like you would run an exe file one Windows. It will then produce a "test.wav" file. This wav file is the sound file with the magstripe data.

[zaneyhaney54]

if I compile the program in g++ on my linux machine should it still work the same?

[perlpower]

G++ as you call it refers to the gcc compiler which can compile C/C++ code, so it should work the same as long as the code does not use Microsoft code.

[seth3d]

This doesn't appear to work in Linux, perhaps I am doing something wrong? '$ gcc msencode.cpp /tmp/cccKjoeO.o:(.eh_frame+0x11): undefined reference to `__gxx_personality_v0' collect2: ld returned 1 exit status'

[seth3d]

Oh snap, g++ works dandy though! Thank you! I can't wait to reduce the 12 security cards I have to carry around for work!

~/magstripe$ g++ msencode.cpp
~/magstripe$ ls
MAGstripe.zip MACOSX/ a.out* msencode.cpp msencodemac.cpp wave.h

[nistco92]

Would it be possible to reverse the wiring on the amplifier and pass the card over the electromagnet, putting the headphone plug into a mic jack on a computer and recording with Audacity (or similar)?

[alwinovich]

that would be
1very unpractical
2would damage the card
and you don't really need the amp

solution:read this