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In an age Where electronic transactions are prevalent, safe-guarding data has become an important issue, thus giving rise to a myriad of security systems. TWo of the common security systems used are passWord and personal identi? cation (PIN) systems. PassWord systems require a user to provide the authentication system With a username and a passWord (both of Which are unique to the user.) PIN systems on the other hand usually require a user to provide a code, usually referred to as the PIN code, for authentica tion purposes. Both the passWord and the PIN system can prove to be a nuisance to users in the event they forget their passWord or PIN code. Moreover, a user A can easily impersonate another user B if user A happens to get a hold of the passWord or PIN code (given either voluntarily or cracked through other means) of user B. One Way to avoid such breaches of security is to implement a user …