“The addition of iris and face specifications . . . adds an alternative modality for biometric authentication and extends coverage to persons for whom fingerprinting is problematic,” the draft says. FIPS 201 allows the use of iris recognition although it is not required, and technical specification had not before been developed. “The recommendation to agencies to install and operate iris equipment in its PIV issuance processes allows agencies to additionally populate PIV cards with iris as an alternative authentication factor."
The National Institute of Standards and Technology proposes options for using iris recognition as alternative to fingerprints for federal Personal Identity Verification. -- Government Computer News
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