Reaffirmed 2023

NATIONAL FOREWORD

This Indian Standard which is identical with ISO/IEC TS 20540 : 2018 ‘Information technology - Security techniques - Testing cryptographic modules in their operational environment’ issued by International Organization for Standardization (ISO) and International Electro technical Commission (IEC) jointly was adopted by the Bureau of Indian Standards on recommendation of the Information Systems Security and Privacy Sectional Committee , and approval of the Electronics and Information Technology Division Council.

The text of ISO/IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.