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Automated-Biometric-Identification-System-(ABIS)-Interface.md

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Providing unique identity for an individual is one of key features of MOSIP platform. To do this MOSIP will

  • Use multi modal biometric information of an individual
  • Leverage Automated Biometric Identification System (ABIS) to de-duplicate Individual's biometric data
  • Design for integrating with multiple ABIS providers to leverage expertise of different ABIS providers
  • Not use ABIS for authentication (deduplication only)

This document will provide the specification an ABIS provider must implement to meet MOSIP's requirements.

Overview

  • MOSIP will interact with ABIS only via message queues
  • JSON format will be used for all control messages like INSERT, IDENTIFY etc... to interact with ABIS
  • CBEFF XML format will be used to send biometrics data to ABIS (Please refer to MOSIP Biometric Data Specifications for cbeff data sample)
  • Inside the CBEFF XML individual biometrics data must be in respective ISO format

Biometric data sent to ABIS will follow the below standards.

  • CBEFF: ISO/IEC 19785-3 (Please refer to MOSIP Biometric Data Specifications for details)

  • Fingerprints

    • Finger Print Minutiae Record (FMR) - ISO/IEC 19794-2
    • Finger Print Image Record (FIR) - ISO/IEC 19794-4

  • IRIS

    • Iris Image Record (IIR) - ISO/IEC 19794-6

  • Face

    • Face Image Data (FID) - ISO/IEC 19794-5

ABIS should support the following types of biometric images

  • Unsegmented fingerprint images (4-4-2), or
  • Unsegmented fingerprint images (4-1-4-1), or
  • Unsegmented fingerprint images (2-2-2-2-2), or
  • Individual fingerprint images (segmented)
  • IRIS images (Left, and Right)
  • Face photograph

ABIS should support the following requests

Management Registration
Ping Insert
GetPendingRequests Identify
GetReferenceCounts Delete
Configure Ping

Key terminologies

ABIS

Automated Biometric Identification System whose primary responsibility is de-duplication of biometric data (finger print & Iris).

Candidate list

Each Identify request to ABIS can return zero or more records that match the provided biometric data. The returned records is referred to as the candidate list

Reference Database

The database maintained with the ABIS system which stores the biometrics data of an individual

Gallery

A subset of the population in the Reference Database used as a target to search for a specific entry. ABIS should have a provision to take an Identify or Verify request with a target gallery parameter

ID Repository

The database within MOSIP which contains the ID details (demographic & biometric) of an Individual. This database is not related to Reference Database.

TargetFPIR

FPIR is False Positive Identification Rate. This metric tells how many false positive identification an ABIS achieved. An ABIS should be able to send the FMR as defined below.

round (-10 * log10 (achieved targetFPIR))

The acceptable values are

Target FPIR score
1 in 1,000 30
1 in 10,000 40
1 in 100,000 50

API's to interact with an ABIS system

ABIS APIs details the API's that an ABIS system must support