Patent attributes
A method of registering a person as an authorized user of a portable device includes acquiring biometric data or a combination of pieces of biometric data of a person, encrypting the acquired biometric data or the combination of pieces of biometric data, generating a code from the encrypted biometric data or the combination of pieces of biometric data, inserting the code in an extension field of a public key certificate stored in the portable device, generating a private key and a public key that corresponds to the private key, based on the public key certificate, wherein the private key contains the code, and transmitting the public key to a remote entity, thereby enabling the remote entity to register the person as an authorized user of the portable device. The extension field of the public key certificate further contains a code associated with identification information of the person.
