A method of improving the security of QR code
Ping Jiang · Information technology newsletter · 2012
The QR code has many advantages.With the widely application of the QR code,the decoding tools were developed rapidly.The security has been concerned.In this paper,a method that the sensitive information of QR code is encrypted with SHA-1 is put forward.Then,the sensitive information is replaced with its message digest.The new QR code is consisted of the message digest of the sensitive information and the remained non-sensitive message in the original QR code.The attackers can hardly get the sensitive information through the decoding tools.Even if the encrypted information of the sensitive information is intercepted,decoding it is infeasible in the calculation for the good nature of one-way of SHA-1.