A weakness of unforgeability is found in Ma and Chen scheme, and the root cause is the susceptive linear design in the scheme. In order to avoid the weakness and susceptive linear design, an improvement by means of tw...A weakness of unforgeability is found in Ma and Chen scheme, and the root cause is the susceptive linear design in the scheme. In order to avoid the weakness and susceptive linear design, an improvement by means of two mechanisms including quadratic residue and composite discrete logarithm is proposed, which can defeat the forgery attacks in Ma and Chen scheme. The new scheme remains good confidentiality, public verifiability and efficiency.展开更多
This paper presents the argument that the security of strategic industries is more important than financial security and lies at the heart of economic security. It further identifies the following industries as strate...This paper presents the argument that the security of strategic industries is more important than financial security and lies at the heart of economic security. It further identifies the following industries as strategic industries： sustenance industry, infrastructure industry, equipment industry, environmental industry and information industry. For the health and security of the national economy, this paper proposes that a priority must be placed on researching the security of strategic industries.展开更多
In view of the hidden perils concerning building safety in the design, material selection, and construction during current building fitment, the authors have analyzed the influence of main-body safety, fitment compone...In view of the hidden perils concerning building safety in the design, material selection, and construction during current building fitment, the authors have analyzed the influence of main-body safety, fitment components safety, the connection between fitment component and main body, and structural safety upon building safety during building fitment. Environmental safety relating to fitment construction, and choice and use of fitment materials should be taken into consideration during building fitment. The authors have proposed a series of measures to solve the impact of building fitment upon building safety.展开更多
基金Sponsored by the National Natural Science Foundation of China(Grant No.60273049 and 90104005).
文摘A weakness of unforgeability is found in Ma and Chen scheme, and the root cause is the susceptive linear design in the scheme. In order to avoid the weakness and susceptive linear design, an improvement by means of two mechanisms including quadratic residue and composite discrete logarithm is proposed, which can defeat the forgery attacks in Ma and Chen scheme. The new scheme remains good confidentiality, public verifiability and efficiency.
文摘This paper presents the argument that the security of strategic industries is more important than financial security and lies at the heart of economic security. It further identifies the following industries as strategic industries： sustenance industry, infrastructure industry, equipment industry, environmental industry and information industry. For the health and security of the national economy, this paper proposes that a priority must be placed on researching the security of strategic industries.
文摘In view of the hidden perils concerning building safety in the design, material selection, and construction during current building fitment, the authors have analyzed the influence of main-body safety, fitment components safety, the connection between fitment component and main body, and structural safety upon building safety during building fitment. Environmental safety relating to fitment construction, and choice and use of fitment materials should be taken into consideration during building fitment. The authors have proposed a series of measures to solve the impact of building fitment upon building safety.
