ISO 20038:2026

Banking and related financial services — Key wrap using advanced encryption standard (AES) ISO 20038:2026

Publication date:   Aug 7, 2026

Scope

This document defines a method for packaging cryptographic keys for transport. This method can also be used for the storage of keys under an advanced encryption standard (AES) key. The method uses the block cipher AES as the wrapping cipher algorithm.
Other methods for wrapping keys are outside the scope of this document but can use the authenticated encryption algorithms specified in ISO/IEC 19772.