CrontoSign utilizes a unique visual challenge contained in a graphical cryptogram consisting of a matrix of colored dots displayed on the customer’s PC screen. The customer uses the camera in his mobile phone or a dedicated hardware device to capture this cryptogram by photographing the screen, instantly decoding, decrypting and displaying transaction details for user verification. If the image is untampered with, the customer is then presented with critical transaction information, like payment details, decoded securely from the visual cryptogram image.
Main features