報(bào)告題目:Extended Proxy-Assisted Approach: Achieving Revocable Fine-Grained Encryption of Cloud Data
主講嘉賓:廖啟瑞博士 Dr. Joseph Liu 澳大利亞Monash University
時(shí)間：2015年 1月5 日（周二）上午10:00 -- 11:00
地點(diǎn)：科技樓1504
報(bào)告摘要:
Abstract: Attribute-based encryption has the potential to be deployed in a cloud computing environment to provide scalable and fine-grained data sharing. However, user revocation within ABE deployment remains a challenging issue to overcome, particularly when there is a large number of users. In this work, we introduce an extended proxy-assisted approach, which weakens the trust required of the cloud server. Based on an all-or-nothing principle, our approach is designed to discourage a cloud server from colluding with a third party to hinder the user revocation functionality. We demonstrate the utility of our approach by presenting a construction of the proposed approach, designed to provide efficient cloud data sharing and user revocation. A prototype was then implemented to demonstrate the practicality of our proposed construction.
嘉賓簡介：
Dr. Joseph Liu (廖啟瑞博士) 在 2004 年取得香港中文大學(xué)信息工程系的博士學(xué)位。他的主要研究范疇包括: 網(wǎng)絡(luò)安全、個(gè)人隱私、身份核實(shí)、公鑰密碼、云安全、智能城市安全等。他現(xiàn)在在澳大利亞蒙納士大學(xué) (Monash University) 信息技術(shù)學(xué)院 (Faculty of Information Technology) 擔(dān)任高級講師。之前，他在新加坡信息通訊研究院 (Institute for Infocomm Research, I2R) 擔(dān)任研究員達(dá) 7 年之久。他一共發(fā)表超過 100 篇論文，當(dāng)中包括多份 IEEE 期刊 (例如 IEEE TIFS, IEEE Trans. on Computers, IEEE TKDE, IEEE Trans. on Vehicular Technology,IEEE Network 等), 其中兩篇論文更獲 ESORICS 2014 及 ESORICS 2015 頒發(fā)最佳論文獎(jiǎng). 論文被引用超過3000次. H指數(shù)高達(dá)24。他的一項(xiàng)有關(guān)輕量密碼學(xué)的研究，在2013年被ISO采納成國際標(biāo)準(zhǔn)，供業(yè)內(nèi)同行使用。他同時(shí)也擔(dān)任一些學(xué)術(shù)會(huì)議的主席，包括ProvSec 2007, 2014以及ACISP 2016等。
Dr. Joseph Liu received the Ph.D. degree in information engineering from the Chinese University of Hong Kong in July 2004, specializing in cyber security, protocols for securing wireless networks, privacy, authentication, and provablesecurity. He is now a senior lecturer at Faculty of Information Technology, Monash University, Australia. Prior to that, he has been a research scientist at Institute for Infocomm Research (I2R), Singapore for more than 7 years.
His current technical focus is particularly cyber security in the cloud computing paradigm, smart city, lightweight security, and privacy enhanced technology. He has published more than 90 referred journal and conference papers including several papers in IEEE TIFS, IEEE Trans. on Computers, IEEE TKDE, IEEE Trans. on Vehicular Technology, IEEE Network etc. and received the Best Paper Award from ESORICS 2014 and ESORICS 2015. He has served as the program chair of ProvSec 2007, 2014, ACISP 2016 and as the program committee of more than 35 international conferences. One of his proposed schemes has been included in ISO standard in the area of lightweight cryptography.
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