US 4,993,068 AGranted

Unforgeable personal identification system

AssigneeMotorola, Inc.

InventorsGerald V. Piosenka, Ronald V. Chandos

Life of this patent

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Abstract

An unforgeable personal identification system for identifying users at remote access control sites. The unforgeable personal identification system generates one-way encrypted versions of physically immutable identification credentials (facial photo, retinal scan, voice and finger prints). These credentials are stored on a portable memory device (credit card size). At a remote access control site, the user presents his portable memory device and the encrypted identification credentials are read. The user then submits physically to inputting of his physical identification characteristics to the remote access control site. Comparison is performed with the credentials obtained from the memory device and with the user's physical identity to determine whether to allow or deny access at the remote site.

Claims32

Dependent claims

An unforgeable personal identification system for identifying users at remote access control sites, said unforgeable personal identification system comprising:

means for generating encrypted physically immutable identification credentials of a user;
said means for generating including processor means for processing digital data;
text input means connected to said processor means, said text input means for transmitting text data including privilege information to said processor means in digital form;
means for encrypting said physically immutable identification credentials and said text data according to a predefined one-way encryption algorithm to produce encrypted identification credentials;
portable memory means for storing said encrypted identification credentials;
said remote access control site including:
means for reading said encrypted identification credentials from said portable memory means;
means for directly inputting physically immutable identification of said user;
means for comparing said input physically immutable identification of said user with said identification credentials read from said portable memory means, said means for comparing further operating to indicate a successful or an unsuccessful comparison of said directly input identification credentials of said user with said identification credentials of said user from said portable memory means and to allow an access by said user according to said privilege information, if said comparing is successful.

6 more elements

A method for unforgeable personal identification having an authorization site and at least one remote access control site for allowing or denying access of a user, said method for unforgeable personal identification comprising the steps of:

collecting physically immutable identification credentials from said user;
transmitting, by an input device, to a processor text data including privilege information in digital form;
encrypting said physically immutable identification credentials and said text data according to a predefined one-way encryption algorithm to produce encrypted identification credentials;
issuing a portable memory device including said encrypted identification credentials to said user;
said method for unforgeable personal identification further including at the remote access control site the steps of:
reading said encrypted identification credentials from said portable memory device of said user;
obtaining said physically immutable identification credentials directly from said user;
comparing said physically immutable identification credentials obtained from said portable memory device with said physically immutable identification credentials obtained directly from said user;
and
allowing an access according to said privilege information, if said comparing is successful.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/441,573Filed 27 Nov 1989
Granted: 12 Feb 1991
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G06F 21/32
User authentication: using biometric data, e.g. fingerprints, iris scans or voiceprints
G06F 21/34
User authentication: involving the use of external additional devices, e.g. dongles or smart cards
G06F 21/83
Protecting input, output or interconnection devices: input devices, e.g. keyboards, mice or controllers thereof
G06Q 20/341
Using cards, e.g. integrated circuit [IC] cards or magnetic cards: active cards, i.e. cards including their own processing means, e.g. including…