| 摘要 |
A method and apparatus for generating a cryptographic key using biometric data is provided. A fingerprint is received, and features are extracted from the fingerprint. These features may include one or more of the following: A message is created based on the features of the fingerprint. For one embodiment, the message is a template including the features. For another embodiment, the message is a subset of features not included in a template. For another embodiment, the message is ghost points not corresponding to the features in the template. A message digest function is applied to the message to create a cryptographic key. Another embodiment of the present invention uses features of the fingerprint image to generate a digital certificate. The public key used for the digital certificate is based on a fingerprint image. In one embodiment, the digital certificate contains a template including the fingerprint image or the features extracted from the fingerprint image. Verification of this template provides additional security to the validity of the digital certificate.
|
