US Patent 11496586 User and client device registration with server

Disclosed are systems and methods for registering a user and/or a client device with a server computer. In one embodiment, a registration method does not use any stored passwords or tokens. In certain embodiments, a method can include (a) generating a plurality of mathematical formulas, at least some of the plurality of mathematical formulas comprising variables; (b) generating a user ID file name comprising a decryption key, the decryption key associated with the plurality of mathematical formulas; (c) generating a plurality of icons; (d) assigning uniquely each mathematical formula from the plurality of mathematical formulas to each of the icons of the plurality of icons; and (e) receiving an ordered selection of icons, the ordered selection of icons selected by the user from said plurality of icons.