BS ISO/IEC 9797-1:2011+A1:2023 - Page 2

Information technology. Security techniques. Message Authentication Codes (MACs). Mechanisms using a block cipher | Status: Current

1 Scope This part of ISO/IEC 9797 specifies six MAC algorithms that use a secret key and an n-bit block cipher to calculate an m-bit MAC. This part of ISO/IEC 9797 can be applied to the security services of any security architecture, process, or application. Key management mechanisms are outside the scope of this part of ISO/IEC 9797. This part of ISO/IEC 9797 specifies object identifiers that can be used to identify each mechanism in accordance with ISO/IEC 8825‑1. Numerical examples and a security analysis of each of the six specified algorithms are provided, and the relationship of this part of ISO/IEC 9797 to previous standards is explained.