What is the name of the international standard that establishes a baseline level of confidence in the security functionality of IT products by providing a set of requirements for evaluation?

The 'Blue Book' refers to the older U.S. DoD Trusted Computer System Evaluation Criteria (TCSEC), which was a U.S.-only standard superseded by Common Criteria.

ISO 26029 does not correspond to an IT security product evaluation standard; it is not a recognized identifier in this domain.

Common Criteria (formally ISO/IEC 15408) is the international standard that defines a framework of security requirements known as Protection Profiles and Security Targets. It provides assurance levels (EAL1-EAL7) that establish increasing degrees of confidence in a product's security functionality. Evaluation against Common Criteria is recognized by governments and organizations worldwide through the Common Criteria Recognition Arrangement (CCRA).

The Wassenaar Arrangement is a multilateral export control regime governing dual-use goods and technologies, not a security evaluation framework for IT products.