A secure keyless entry system integrates into an existing motorized garage door opening system to replace the one button transmitters typically placed in a vehicle. The one button transmitters are replaced with remote modules having alpha numeric key pads. The remote modules accept a string of input and compare the last four to eight entries to a previously set designated PIN. In order to obfuscate the designated PIN from on lookers, a user of the system may first enter a random string of decoy characters before finally entering the designated PIN. The disclosed system may also be used to replace the metal keys typically used to secure entry doors to a dwelling.