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ISO/IEC NP 26735 Application profile of ISO/IEC 39794-4 for finger image data in machine-readable travel documents

Source:
ISO/IEC
Committee:
IST/44 - Biometrics
Categories:
Information management | Standardization. General rules
Comment period start date:
Comment period end date:

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Scope

The eighth edition of ICAO Doc 9303 progresses from using the first edition of the ISO/IEC 19794 series for encoding biometric reference data in electronic machine-readable travel documents to using the ISO/IEC 39794 series for this purpose. This document specifies how to use ISO/IEC 39794-4 for fingerprint image data stored in electronic machine-readable travel documents.

Purpose

To meet future needs for additional data elements, ISO/IEC JTC 1/SC 37 developed the ISO/IEC 39794 series of standards defining extensible biometric data interchange formats. The binary formats in the ISO/IEC 39794 series are based on specifications in ASN.1 (Abstract Syntax Notation One) and on the Distinguished Encoding Rules of ASN.1, yielding tag-length-value encodings. The eighth edition of ICAO Doc 9303 “Machine readable travel documents” (MRTDs) moves from using the first edition of the ISO/IEC 19794 series for encoding biometric reference data to using the ISO/IEC 39794 series for this purpose. To support the transition, CEN/TC 224 developed the Technical Specification CEN/TS 18214:2025 “ISO/IEC 39794-4 application profile for finger image data in machine-readable travel documents” specifying how to use ISO/IEC 39794-4 for fingerprint image data stored by several countries in the MRTDs they issue. ISO/IEC JTC 1/SC 37 is considering adopting CEN/TS 18214 as is at international level as it would help reduce variability in the fingerprint data stored in MRTDs across countries.

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