Methods, apparatus and articles of manufacture for increasing entropy for password and key generation on a mobile device are provided herein. A method includes establishing a pre-determined set of cryptographic information, wherein said pre-determined set of cryptographic information comprises one or more input elements and one or more interface input behavior metrics associated with the one or more input elements; generating a prompt via a computing device interface in connection with an authentication request to access a protected resource associated with the computing device; processing input cryptographic information entered via the computing device interface in response to the prompt against the pre-determined set of cryptographic information; and resolving the authentication request based on said processing.