ANSI/NIST-ITL 2-2008 NIST Special Publication 500-275 XML Version of ANSI/NIST-ITL 1-2007 Information Technology: American National Standard for Information Systems— Data Format for the Interchange of Fingerprint Facial, & Other Biometric Information – Part 2: XML Version ANSI/NIST-ITL 2-2008 XML Version of NIST Special Publication 500-275 ANSI/NIST-ITL 1-2007 Information Technology: American National Standard for Information Systems— Data Format for the Interchange of Fingerprint, Facial, & Other Biometric Information – Part 2: XML Version Elaine Newton, Gerry Coleman, and Patrice Yuh, Editors Sponsored by Information Access Division Information Technology Laboratory National Institute of Standards and Technology Gaithersburg, MD 20899-8940 August 2008 Approved August 12, 2008 American National Standards Institute, Inc. U.S. Department of Commerce Carlos M. Gutierrez, Secretary National Institute of Standards and Technology James M. Turner, Deputy Director Reports on Information Technology The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) stimulates U.S. economic growth and industrial competitiveness through technical leadership and collaborative research in critical infrastructure technology, including tests, test methods, reference data, and forward-looking standards, to advance the development and productive use of information technology. To overcome barriers to usability, scalability, interoperability, and security in information systems and networks, ITL programs focus on a broad range of networking, security, and advanced information technologies, as well as the mathematical, statistical, and computational sciences. This Special Publication 500-series reports on ITL’s research in tests and test methods for information technology, and its collaborative activities with industry, government, and academic organizations. This document is a contribution of the National Institute of Standards and Technology and is not subject to copyright. Any organization interested in reproducing ANSI/NIST-ITL 2-2008 Data Format for the Interchange of Fingerprint, Facial, & Other Biometric Information – Part 2: XML Version is free to do so. However there shall be no alteration to any of the material contained in the document. NIST retains the sole right to submit this standard to any other forum for any purpose. Certain commercial entities, equipment, or materials may be identified in this document to assign field numbers to registered vendors or to describe a procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. National Institute of Standards and Technology Special Publication 500-275 Natl. Inst. Stand. Technol. Spec. Publ. 500-275 408 pages (August 2008) CODEN: NSPUE2 Part 2 ANSI/NIST-ITL 2-2008 Contents Acknowledgements ……………………………………………………………………………………... vii Foreword…………………………………………………………………………………………………..viii 201 Introduction............................................................................................................................... 1 202 Scope, purpose, and conformance .......................................................................................... 1 202.1 Scope ............................................................................................................................. 1 202.2 Purpose .......................................................................................................................... 2 202.3 Conformance.................................................................................................................. 2 203 Normative References.............................................................................................................. 3 204 Definitions................................................................................................................................. 4 205 Transmitted data conventions .................................................................................................. 6 205.1 Fingerprint Ridge Representation .................................................................................. 6 205.2 Byte and bit ordering ...................................................................................................... 6 205.3 Grayscale data ............................................................................................................... 7 205.4 Binary data .....................................................................................................................7 205.5 Color data....................................................................................................................... 7 205.6 Compression algorithms ................................................................................................ 8 205.7 Color spaces ................................................................................................................ 10 205.8 Scan sequence............................................................................................................. 11 205.9 Guidance on Missing Data for Mandatory Elements.................................................... 12 206 Image resolution requirements............................................................................................... 13 206.1 Scanner resolution requirement................................................................................... 13 206.2 Transmitting resolution requirement............................................................................. 13 207 Information exchange package description............................................................................ 14 207.1 Information exchange package format......................................................................... 15 207.2 Information exchange package contents ..................................................................... 16 i Part 2 ANSI/NIST-ITL 2-2008 207.3 Implementation domains .............................................................................................. 16 207.4 Image reference identification...................................................................................... 17 208 Record description ................................................................................................................. 18 208.1 Logical record types ..................................................................................................... 18 208.2 Record format............................................................................................................... 24 209 Type-1 transaction information record ................................................................................... 25 209.1 XML elements for the Type-1 transaction information record...................................... 25 209.2 End of transaction information record Type-1.............................................................. 33 210 Type-2 user-defined descriptive text record........................................................................... 33 210.1 XML elements for Type-2 logical records .................................................................... 33 210.2 End of Type-2 user-defined descriptive text record ..................................................... 36 210.3 Additional user-defined descriptive text records .......................................................... 36 211 Type-3 through Type-6 fingerprint image records.................................................................. 36 211.1 General.........................................................................................................................36 211.2 Types 3-6 logical record XML elements....................................................................... 37 211.3 End of fixed-resolution fingerprint image record .......................................................... 42 211.4 Additional fixed-resolution image records .................................................................... 42 212 Type-7 user-defined image record ......................................................................................... 43 212.1 XML elements for Type-7 logical records .................................................................... 43 212.2 End of Type-7 user-defined image record ................................................................... 45 212.3 Additional user-defined descriptive text records .......................................................... 45 213 Type-8 signature image record .............................................................................................. 45 213.1 XML elements for the Type-8 logical record ................................................................ 45 213.2 End of Type-8 signature image record......................................................................... 49 213.3 Additional variable-resolution latent image records ..................................................... 50 214 Type-9 minutiae data record .................................................................................................. 50 214.1 Minutiae and other information descriptors (Standard Format) ................................... 50 ii Part 2 ANSI/NIST-ITL 2-2008 214.2 XML elements for Type-9 logical record 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