1. A method for user authentication, comprising: displaying on a display at least one pallet illustrating associations between a series of unique non-descriptive graphical figures and corresponding unique text-based characters, wherein each text-based character corresponds to one of a plurality of keys comprising an input mechanism of the device and wherein each unique non-descriptive graphical figure is associated with a corresponding text-based character; receiving input of a text-based character corresponding to a unique non-descriptive graphical figure and displaying the non-descriptive graphical figure in a predetermined display location in accordance with a defined sequence scheme comprising rules for the order of entry of a sequence, and repeating receiving input of a text-based character corresponding to a next non-descriptive graphical figure and displaying the next non-descriptive graphical figure in a next predetermined display location in accordance with the defined sequence scheme until receipt of the sequence is complete; and processing the input text-based characters as a user password.