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US 8,297,510 B1Granted
Mathematical method of 2D barcode authentication and protection for embedded processing
OwnerVladimir Yakshtes, Anatoliy Shishkininventors
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Abstract
Mathematical method and algorithms for protecting 2D Barcode symbol from counterfeiting and encoded data from tampering with. The algorithms are based on Digital Signature concept, employ Reed-Solomon Error Correction mechanism built into the 2D Barcodes, and designed for embedded processing. The method is based on symmetrical encryption and makes use of the two independent key-exchange protocols. Encryption/decryption algorithms are built into the standard encoding/decoding schemes and result in almost no additional processing time.
Claims9
A method of authenticating and/or encrypting a 2D barcode comprising;
- providing a 2D barcode that is a representation of digits and characters, wherein the barcode includes redundancies;
- providing encoding and decoding software for encoding and decoding the 2D barcode, wherein the software includes error correction capability;
- constructing authentication tags from the redundancies in the barcode, wherein the tags are created using a randomization procedure;
- transforming the 2D barcode to include the authentication tags.
1 more element
Dependencies are inferred from the claim text.