Secure Hidden Text Barcode Tutorial
This in-development tutorial outlines how to create secure barcodes that include
hidden text so that the hidden characters are
not available in the scanned output, but can be interpreted by the intended
application or IDAutomation's
Barcode Scanner
ASCII String Decoder.
Barcodes with hidden data
can be created using the
IDAutomation Barcode
Label Software Pro. Specifically, the formula of
"ID "& L# & Base2(L#,28) was used to encode
hidden ASCII text in a barcode. When scanned, an
application that can tell ASCII 28 and 29 apart can decode the ID to verify
a correct barcode. The encoded data in Label 5 would be
ID5<29><28><29> which is easily encoded
in the Code 128 or Data Matrix barcode symbology. When this barcode
is scanned with a barcode
scanner, the data read in a word processor or text editor would
be only ID5.
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