Presentation given at the KDE Seminar (University of Tsukuba) about CryptDB*. This presentation is based on the uploader's understanding of the paper and may contain inaccurate interpretations. A summary of the paper is available at: https://mshcruz.wordpress.com/2016/06/24/summary-cryptdb/ The official website for CryptDB is: http://css.csail.mit.edu/cryptdb/ *Popa et al.: "CryptDB: Protecting Confidentiality with Encrypted Query Processing". SOSP 2011.