Abstract: A computer implemented method for use of encrypted identity on a QR code encoded onto a permanent medium. The system includes mechanism to generate the encrypted identity into a QR code. Also, at patient authentication, the encrypted identity in QR code is read through a custom application. The custom application decrypts the double encrypted global ID using the application encryption key. The server decrypts the application decrypted ID using the server key and date of the encryption. The decrypted global ID is then used to match with the patient information.