ISO/IEC 24727

{{Use British (Oxford) English|date=January 2012}}

{{One source|date=January 2025}}

ISO/IEC 24727{{cite web |title=Use of ISO/IEC 24727 |url=https://www.govinfo.gov/content/pkg/GOVPUB-C13-49e69b6f05439de024809af55395c3d7/pdf/GOVPUB-C13-49e69b6f05439de024809af55395c3d7.pdf |website=govinfo.gov |publisher=National Institute of Standards and Technology |access-date=15 January 2025}} (Identification cards – Integrated circuit card programming interfaces) is the first international standard to address the need for creation of a layered framework to support interoperability of smart cards providing identification, authentication, and (digital) signature services.

The standard is split into six parts:

• ISO/IEC 24727-1:2014 Part 1: Architecture
• ISO/IEC 24727-2:2008 Part 2: Generic card interface
• ISO/IEC 24727-3:2008 Part 3: Application interface
• ISO/IEC 24727-4:2008 Part 4: Application programming interface (API) administration
• ISO/IEC 24727-5:2011 Part 5: Testing procedures
• ISO/IEC 24727-6:2010 Part 6: Registration authority procedures for the authentication protocols for interoperability