What are Secure Quick Response codes?
Q: What are Secure Quick Response codes?
A: Secure Quick Response codes (SQR codes) are secure two dimensional barcodes with high data density, based on QR codes. They are a secure method for encrypting data into a barcode.
Q: How does SQR code encryption work?
A: SQR code encryption makes it extremely difficult to decode the original plain text in the absence of the encryption cipher or key. A typical implementation is to create a one-time use SQR code on a mobile phone's screen to effectively create a highly secure one-time pad type of encryption.
Q: What type of token is typically used in an SQR code implementation?
A: A typical implementation uses a precursor physical machine readable token such as the card identity number (CID) written in read-only memory (ROM) of a Secure Digital microSD card contained in a mobile telephone. The international mobile identity number may be used where no microSD card is present, for example, on an Apple iPhone.
Q: How can SQR codes be securely read?
A: SQR codes can be securely read in retail environments at the point of sale using 2D barcode scanners or even low cost web cameras.
Q: Who developed Secure Quick Response Codes?
A: Secure Quick Response Codes were first developed by Yodo, a company operating in Japan and they are patent pending.
Q: Are there any other applications for SQR Codes?
A: Yes, there are many potential applications for SQR Codes including authentication and authorization processes, digital signatures, document tracking and more.
