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I'm sure you've seen the 2D barcodes popping up.
Create your own free 2d barcode : M0b1le.net
I had a thought. Enter your message, let it generate the barcode and then send that to someone. To a casual observer it is unreadable. However with a barcode scanner on your cell phone you can easily discover the text. So, make it a coded message, then send the coded message through the barcode utility thus making it a fairly secure way to communicate.
If you can produce these locally, i.e. print them from your computer without accessing the web, then you could make a message which could be taken elsewhere and the recipient would use their cell phone to view it... however they wouldn't actually need the internet or cellular network to do it as they would just be running an app on their phone.
Yes, we're assuming that at least some form of power is still working to keep the devices functioning.
Create your own free 2d barcode : M0b1le.net
I had a thought. Enter your message, let it generate the barcode and then send that to someone. To a casual observer it is unreadable. However with a barcode scanner on your cell phone you can easily discover the text. So, make it a coded message, then send the coded message through the barcode utility thus making it a fairly secure way to communicate.
If you can produce these locally, i.e. print them from your computer without accessing the web, then you could make a message which could be taken elsewhere and the recipient would use their cell phone to view it... however they wouldn't actually need the internet or cellular network to do it as they would just be running an app on their phone.
Yes, we're assuming that at least some form of power is still working to keep the devices functioning.