Abstract: At present, the usability of privacy preserving computing technology is greatly enhanced, usage scenarios are gradually enriched, the degree of productization gradually matures, the number of products has exploded, and the types of products are becoming more abundant, and the privacy preserving computing industry is gradually taking shape. As an emerging technology, it is difficult for users to comprehensively determine the choice of privacy preserving computing products. Therefore, it is urgent to establish a unified privacy preserving computing product specification and product evaluation system. This article discusses the history of privacy preserving computing from cutting-edge technology to landing products, analyzes the current situation of privacy preserving computing products, and proposes a set of evaluation systems for privacy preserving computing products based on actual work, and looks forward to the future development.

Key words: privacy preserving computing, secure multi-party computation, federated learning, trusted execution environment