Date : 12-07-24
[Seminar]CryptDB: Protecting Confidentiality with Encrypted Query Processing
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BK21 소프트웨어사업단 세미나 안내입니다.

관심있으신 교수님들과 대학원생들의 많은 참여부탁드립니다.

Title: CryptDB: Protecting Confidentiality with Encrypted Query Processing

Speaker: Nickolai Zeldovich (MIT)

Date: July 25th, (Wed) 10:30am~12:00pm

Location: 우정관 (Woojung Building), 202 lecture room, Korea University


Online applications are vulnerable to theft of sensitive information because adversaries can exploit software bugs to gain access to private data, and because curious or malicious administrators may capture and leak data. CryptDB is a system that provides practical confidentiality in the face of these attacks for applications backed by SQL databases. CryptDB's approach is to execute SQL queries over encrypted data. It can do so practically with two techniques: using a collection of efficient SQL-aware encryption schemes, some of which are new, and onions of encryptions which allow dynamic adjustment of encryption schemes. CryptDB also chains encryption keys to user passwords, so that a data item can be decrypted only by using the password of one of the users with access to that data. An analysis of a trace of 126 million SQL queries from a production MySQL server shows that CryptDB can support operations over encrypted data for 99.5% of the 128,840 columns seen in the trace. Our evaluation shows that CryptDB has low overhead, reducing throughput by 26% for queries from the standard SQL benchmark TPC-C compared to unmodified MySQL.


Nickolai Zeldovich is an Associate Professor at MIT's department of Electrical Engineering and Computer Science, and a member of the Computer Science and Artificial Intelligence Laboratory. His research interests are in building practical secure systems, from operating systems and hardware to programming languages and security analysis tools. He received his PhD from Stanford University in 2008, where he developed HiStar, an operating system designed to minimize the amount of trusted code by controlling information flow. In 2005, he co-founded MokaFive, a company focused on improving desktop management and mobility using x86 virtualization. Prof. Zeldovich received a Sloan fellowship in 2010, and an NSF CAREER award in 2011.