Archive for biometrics

Smartcard Acrynoms

LSB: Least significant bit
MSB: Most significant bit
PCD: Proximity Coupling Devices
PICC: Proximity IC Card

MRTD: Machine Readable Travel Documents

Terminology:

  • MRTD General term for all Machine Readable Travel Documents
  • eMRTD General term for electronically enabled MRTDs
  • MRP Machine Readable Passport using only OCR
  • eMRP Electronically enabled MRP
  • MRV Machine Readable Visa
  • MRVA Size A MRV
  • MRVB Size B MRV
  • MRtd Machine Readable Official Travel Document using only OCR
  • eMRtd Electronically enabled MRtd
  • td1 Small size Official Travel Document using only OCR
  • etd1 Electronically enabled td1
  • td2 Large size Official Travel Document using only OCR
  • etd2 Electronically enabled td2

References
MRZ

EFTS

Overview

  • EFTS stands for Electronic fingerprint transmission specification
  • Defines how fingerprint and demographic data are transmitted within the context of ANSI standard

Structure

  • Type 1 record
    • Exactly one type 1 record
    • Contains header info: date, version, transaction id, etc.
  • Type 2 recrod
    • Exactly one type 2 record
    • Contains demographic information: name, address, ssn, rap sheet, etc.
  • Type 4 record
    • High resolution greyscale fingerprint images (WSQ compressed)
    • Fourteen type 4 records:
      One for each finger, one for each thumb, one for each palm print
  • Type 13 record
    • Latent fingerprint images (uncompressed)
  • Type 14
    • Low resolution fingper print images (maybe WSQ compressed)

PC/SC

PC/SC Overview

  • stands for Personal Computer/Smart Card
  • Is a standard framework for smart card access on Windows Platforms

PC/SC Architecture

  • Smart card service provider (optional)
  • Smart card resource manager
  • Smart card reader driver