Multi-factor biometric authenticating device and method
AssigneeEntrust Technologies Limited
InventorsCarlisle Adams, Michael J. Wiener
Life of this patent
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Abstract
A multi-factor biometric authenticating device and method generates error correction based partial encryption key seed data based on a plurality of sample biometric inputs, such as raw biometric data The error correction based partial encryption key seed data serves as a partial seed for generating a secret encryption key for encrypting user data. The first partial seed is combined with a second partial encryption seed to generate the secret encryption key. The device stores the error correction based partial encryption key seed data and does not store the secret encryption key.
Claims19
A two factor biometric authenticating device comprising:
- means for generating error correction based partial encryption key seed data based on a plurality of sampled biometric inputs wherein the error correction based partial encryption key seed data serves as a first partial seed for generating a secret encryption key for encrypting unique user data, when combined with a second partial encryption key seed that is based on later received biometric input data, and
- means for storing internal to the biometric authenticating device the error correction based partial encryption key seed data to facilitate authentication of a user based on later received biometric input data.
A method for providing two factor biometric authentication comprising:
- generating error correction based partial encryption key seed data based on a plurality of sampled biometric inputs wherein the error correction based partial encryption key seed data serves as a first partial seed for generating a secret encryption key for uniquely encrypting user data, when combined with a second partial encryption key seed that is based on later received biometric input data, and
- storing internal to a biometric authentication device the error correction based partial encryption key seed data to facilitate authentication of a user based on later received biometric input data.
A two factor biometric authenticating device comprising:
- means for generating error correction based partial encryption key seed data based on first codeword data derived at least in part from variability data obtained from among a plurality of sampled biometric inputs, wherein the error correction based partial encryption key seed data serves as a first partial seed for generating a secret encryption key for encrypting unique user data, when combined with a second partial encryption key seed that is based on later received biometric input data, and
- means for storing internal to the biometric authenticating device the error correction based partial encryption key seed data to facilitate authentication of a user based on later received biometric input data;
- and
- means, operatively coupled to the means for storing, for generating a secret encryption key based on the error correction based partial encryption key seed data and at least one of the sampled biometric inputs.
Dependencies are inferred from the claim text.