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MOSIP-Biometric-Data-Specifications.md

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Multi modal biometrics (Fingerprint, Iris, Face...) will be a key component in MOSIP to identify and provide a unique identity to an Individual. The page details out the specifications for Biometrics data during data acquisition and verification.

  • MOSIP will use CBEFF ISO 19795 - 1 format to store and transfer biometrics data

  • MOSIP will use XML data format of CBEFF to store the biometrics data

  • MOSIP will use OASIS patron format ISO/IEC JTC 1 SC 37 – biometrics , Patron identified – 257, patron format identifier 11 (Please refer to the link for details)

  • MOSIP will use OASIS Binary Data Block Format Identifiers for Format Type ISO/IEC JTC 1 SC 37-biometrics, Patron identified -257 , BDB patron format identifier such as 7-finger image, 8-face image and 9-iris image (Please refer to the link for details)

  • All the biometrics data captured for an Individual is stored in a single XML file

  • The biometrics data itself inside the CBEFF file will be in the respective ISO format encoded as base64 binary

  • MOSIP has an util to create, update, search and validate cbeff xml data. Please refer the link for details

CBEFF XML

Please refer to the link for the XML schema of CBEFF XML format. Below is a sample of CBEFF XML for all fingers, iris and face.

<?xml version="1.0" encoding="UTF-8"?>
<BIR xmlns="http://standards.iso.org/iso-iec/19785/-3/ed-2/">
   <BIRInfo>
      <Integrity>false</Integrity>
   </BIRInfo>
   <!-- right index finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.209Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Right IndexFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- right middle finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Right MiddleFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- right ring finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Right RingFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- right little finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Right LittleFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- left index finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Left IndexFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- left middle finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Left MiddleFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- left ring finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Left RingFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- left little finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Left LittleFinger</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- right thumb finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Right Thumb</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- left thumb finger -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Finger</Type>
         <Subtype>Left Thumb</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- face -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Face</Type>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- right iris -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Iris</Type>
         <Subtype>Right</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
   <!-- left iris -->
   <BIR>
      <Version>
         <Major>1</Major>
         <Minor>1</Minor>
      </Version>
      <CBEFFVersion>
         <Major>1</Major>
         <Minor>1</Minor>
      </CBEFFVersion>
      <BIRInfo>
         <Integrity>false</Integrity>
      </BIRInfo>
      <BDBInfo>
         <Format>
            <Organization>Mosip</Organization>
            <Type>257</Type>
         </Format>
         <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
         <Type>Iris</Type>
         <Subtype>Left</Subtype>
         <Level>Raw</Level>
         <Purpose>Enroll</Purpose>
         <Quality>
            <Algorithm>
               <Organization>HMAC</Organization>
               <Type>SHA-256</Type>
            </Algorithm>
            <Score>100</Score>
         </Quality>
      </BDBInfo>
      <BDB>RklSAD...</BDB>
   </BIR>
</BIR>

Data standards for Registration

Finger Print

Finger Print Image Record (FIR)

  • Image specification - ISO/IEC 19794 - 4
  • File format - ???
  • Number of Fingers - maximum 10; minimum - 1
  • Format - JPEG2000 (lossless)
  • Quality - NIST Fingerprint Quality (NFIQ) value of 1, 2 and 3 is acceptable
  • Transmission format - JPEG2000
  • Storage - JPEG2000 or PNG

Finger Print Minutiae Record (FMR)

Only FIR is captured during registration

IRIS

MOSIP will use Iris images only for registration

IRIS Image Record (IIR)

  • Image specification - ISO/IEC 19794 - 6
  • File format - ???
  • Number of eyes - 2
  • Format - JPEG2000 (lossless)
  • Transmission format - JPEG2000
  • Storage - JPEG2000 or PNG

Face

MOSIP will use face image for registration

Face Image Data (FID)

  • Image specification - ISO/IEC 19794 - 5
  • Image details - Full frontal image, +/- 5 degrees rotation, 24 bit RGB, white background, 35 mm width, 45 mm height
  • Format - JPEG2000 or PNG (lossless)
  • Transmission format - JPEG2000
  • Storage - JPEG2000 or PNG

Data standards for Authentication

Finger Print

Only minutiae based authentication is available in version 1

Finger Print Minutiae Record (FMR)

  • Minutiae specification - ISO/IEC 19794 - 2
  • Record format - ???
  • Number of fingers - 1 or 2
  • Quality - NIST Fingerprint Quality (NFIQ) value of 1, 2 and 3 is acceptable
  • Transmission format - minutiae
  • Storage - minutiae

IRIS

MOSIP will use Iris images only authentication

IRIS Image Record (IIR)

  • Image specification - ISO/IEC 19794 - 6
  • Record format - ???
  • Number of eyes - 1 or 2
  • Transmission format - JPEG2000 (lossless)
  • Storage - JPEG2000 or PNG

Face

Face authentication will come in a future release of MOSIP