1. A method, comprising: recording a first gesture-based signature written on a touchscreen by a user, including coordinates associated with movement captured by the touchscreen; storing the recorded first gesture-based signature and a first duration of recording for the first gesture-based signature into a first storage location of a computing device; comparing the first gesture-based signature and the first duration with a second gesture-based signature and a second duration of recording for the second gesture-based signature already stored in a second storage location of the computing device; and verifying the first gesture-based signature as authentic if the first gesture-based signature and the first duration are substantially similar to the second gesture-based signature and the second duration respectively; and responsive to verifying that the first gesture-based signature is authentic, automatically substituting the verified first gesture-based signature for a stored correct text-based password that is then input into a password field, the stored correct text-based password stored in a storage of the computing device.