关键词: 可信计算环境, 信任链, 可信度量根

Abstract: Trusted computing environment provides a new arena to address the challenges in computer security by combining software and hardware to meet the definition of trusted computing. The authenticity, confidentiality, controllability and other properties that it provides can make up the deficiencies of traditional security methods. This paper describes the hardware basis of trusted computing, summarizes the recent trusted computing environment which is based on the DRTM（Dynamic Root of Trust for Measurement） and SRTM（Static Root of Trust for Measurement）, analyzes the advantages and disadvantages?of existed trusted computing environment, and indicates the direction of future research by analyzing the trust chain.

Key words: trusted computing environment, chain of trust, root of trust measurement