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Cloud computing as an emerging technology trend is expected to reshape the advances in information technology. In this paper, we address two fundamental issues in a cloud environment: privacy and efficiency. We first review a private keyword-based file retrieval scheme proposed by Ostrovsky et. al. Then, based on an
The insufficiency of consumer's trust is one of bottlenecks to China online shopping, and now most Web sites resort to the renowned third party or trust displaying mechanism to promoting consumer's trust. However, whether the two kinds of trust promotion strategies above have the same effect? And whether their own attributes and assurance contents have the significant influence on consumer's trust?...
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