Patent US 8,069,256

Personal identity-identifiers such as social security numbers, finger prints, and biometric identifiers are fixed for life; once disclosed they cannot reliably be used to authenticate the identity of a person claiming to own the identity-identifier(s). This limitation is overcome by introduction of one or more identity-passwords that are related, attached, or commingled together through a preset “rule”. Authentication methodologies claimed by this invention use a three-way-cross-authentication among three entities; a person to be authenticated, an entity requesting the authentication, and a trustee that issues, keeps, and verifies identity-data. Such methodologies can trace back the entitlement of one or more identity-identifiers to its correct owner through a three-way-cross-match of its identity-passwords. Specific methods are described to authenticate one's social security number, credit card number, door pass, computer software licenses, and the like. Other methods are described that eliminates the need for business to ask for identity-identifiers.