Unlocking electronic devices with touchscreen input gestures

An electronic device comprising:

• a touchscreen;
• and
• one or more processor circuits, configured to:
• display, on the touchscreen of the electronic device in a locked state, at least one line dividing the touchscreen into a plurality of input regions;
• receive, on the touchscreen of the electronic device, a plurality of input gestures, each input gesture being a representation of a corresponding value;
• identify, for each input gesture and from the plurality of input regions, a corresponding initial input region containing a starting point of that input gesture received on the touchscreen;
• generate a sequence of calculated password digits by calculating for each input gesture, a corresponding password digit based on a calculated result of a mathematical operation that utilizes as operands both a corresponding base number of the corresponding initial input region of that input gesture and the value corresponding to that input gesture, wherein the calculated result for at least one of the input gestures is a negative number and the corresponding password digit for that input gesture is an absolute value of that calculated result;
• compare the sequence of calculated password digits to a password stored in the electronic device;
• and
• unlock, in response to the comparing and based on a match between the sequence of calculated password digits and the password stored in the electronic device, the electronic device.

A computer program product comprising:

• at least one computer readable storage medium having program instructions embodied therewith, wherein the at least one non-transitory computer readable storage medium, the program instructions executable by at least one computer processor circuit to cause the at least one computer processor circuit to perform a method comprising:
• displaying, on a touchscreen of an electronic device in a locked state, at least one line dividing the touchscreen into a plurality of input regions;
• receiving, on the touchscreen of the electronic device, a plurality of input gestures, each input gesture being a representation of a corresponding value;
• identifying, for each input gesture and from the plurality of input regions, a corresponding initial input region containing a starting point of that input gesture received on the touchscreen;
• generating a sequence of calculated password digits by calculating for each input gesture, a corresponding password digit based on a calculated result of a mathematical operation that utilizes as operands both a corresponding base number of the corresponding initial input region of that input gesture and the value corresponding to that input gesture, wherein the calculated result for at least one of the input gestures is a negative number and the corresponding password digit for that input gesture is an absolute value of that calculated result;
• comparing the sequence of calculated password digits to a password stored in the electronic device;
• and
• unlocking, in response to the comparing and based on a match between the sequence of calculated password digits and the password stored in the electronic device, the electronic device.