揭開區塊鏈的神秘面紗并實現原子跨鏈交易



活動地點:校本部東區計算機大樓1001室

活動時間:2019-08-10 09:30:08

報 告 人:Amr El Abbadi,Department of Computer Science, University of California, Santa Barbara

報告時間:08月10日(周六)9:30~10:30

報告地點:校本部東區計算機大樓1001室

邀 請 人:李衛民 副教授


報告摘要: Bitcoin is a successful and interesting example of a global scale peer-to-peer cryptocurrency that integrates many techniques and protocols from cryptography, distributed systems, and databases. The main underlying data structure is blockchain, a scalable fully replicated structure that is shared among all participants and guarantees a consistent view of all user transactions by all participants in the cryptocurrency system. The novel aspect of Blockchain is that historical data about currency transactions is maintained in the absence of any central authority. This property of Blockchain has given rise to the possibility that future applications will transition from centralized databases to a fully decentralized storage based on blockchains. In this talk, the first tutorial style half will develop an understanding of the basic protocols used in blockchain, and elaborate on its main advantages and limitations. The second half is motivated by the proliferation of different crypto currencies where users need to atomically exchange assets among them without depending on centralized intermediaries such as exchanges.  We therefore present the first decentralized all-or-nothing atomic cross-chain commitment protocol.  This protocol guarantees that either all currency exchanges in an atomic cross-chain transaction are redeemed or all of them are refunded.. 


報告人簡介:

 Amr El Abbadi is a Professor of Computer Science at the University of California, Santa Barbara. He received his B. Eng. from Alexandria University, Egypt, and his Ph.D. from Cornell University. Prof. El Abbadi is an ACM Fellow, AAAS Fellow, and IEEE Fellow.  He was Chair of the Computer Science Department at UCSB from 2007 to 2011.  He has served as a journal editor for several database journals, including, The VLDB Journal, IEEE Transactions on Computers and The Computer Journal. He has been Program Chair for multiple database and distributed systems conferences. He currently serves on the executive committee of the IEEE Technical Committee on Data Engineering (TCDE) and was a board member of the VLDB Endowment from 2002 to 2008. In 2007, Prof. El Abbadi received the UCSB Senate Outstanding Mentorship Award for his excellence in mentoring graduate students. In 2013, his student, Sudipto Das received the SIGMOD Jim Gray Doctoral Dissertation Award. Prof. El Abbadi is also a co-recipient of the Test of Time Award at EDBT/ICDT 2015. He has published over 300 articles in databases and distributed systems and has supervised over 35 PhD students.


万人红黑大战 进贤县 | 栾城县 | 青阳县 | 永登县 | 重庆市 | 常山县 | 鲁山县 | 永城市 | 武义县 | 武城县 | 芦溪县 | 西青区 | 中宁县 | 阿勒泰市 | 徐汇区 | 丰宁 | 久治县 | 确山县 | 武宣县 | 陆良县 | 山阴县 | 喜德县 | 张掖市 | 呈贡县 | 丘北县 | 错那县 | 谢通门县 | 泽州县 | 康平县 | 淮北市 | 临泽县 | 江阴市 | 越西县 | 辽阳市 | 英吉沙县 | 哈尔滨市 | 淮滨县 | 巍山 | 宁陕县 | 大埔区 | 金山区 | 扎兰屯市 | 四子王旗 | 天等县 | 应城市 | 洮南市 | 玉环县 | 尼玛县 | 岐山县 | 南安市 | 荔浦县 | 盐山县 | 郓城县 | 疏勒县 | 昌吉市 | 米泉市 | 彭水 | 抚松县 | 海门市 | 资讯 | 双流县 | 德安县 | 锡林郭勒盟 | 安图县 | 介休市 | 新疆 | 阳城县 | 新干县 | 仁寿县 | 湘潭市 | 托克逊县 | 延边 | 新野县 | 汝阳县 | 永嘉县 | 顺昌县 | 唐河县 | 喀喇沁旗 | 旬邑县 | 应城市 | 满洲里市 | 沁阳市 | 泽库县 | 运城市 | 安丘市 | 阿克苏市 | 格尔木市 | 陆良县 | 阜平县 | 宿州市 | 浦城县 | 松原市 | 历史 | 祁门县 | 丹阳市 | 湾仔区 | 荆门市 | 维西 | 吕梁市 | 宁夏 | 饶平县 | 东丽区 | 抚州市 | 阿坝县 | 巴林左旗 | 新绛县 | 舟山市 | 理塘县 | 万州区 | 建水县 | 江达县 | 常德市 | 进贤县 | 深水埗区 | 桐柏县 | 科技 | 嘉义县 | 海阳市 | 弥勒县 | 泾阳县 | 永泰县 | 师宗县 | 宜兰县 | 江达县 | 毕节市 | 祁连县 | 江川县 | 民县 | 余庆县 | 普定县 | 淅川县 | 清河县 | 龙山县 | 台州市 | 板桥市 | 青阳县 | 柳州市 | 环江 | 华池县 | 赤城县 | 沂源县 | 原阳县 | 铜鼓县 | 新建县 | 吉林市 | 河源市 | 英德市 | 阿拉善右旗 | 宁城县 | 尼木县 | 南岸区 | 海淀区 | 松滋市 | 崇文区 | 洞口县 | 昭平县 | 潮州市 | 苍梧县 | 雅江县 | 南丹县 | 公安县 | 深州市 | 沁阳市 | 绥芬河市 | 江城 | 宁德市 | 泰顺县 | 潞西市 | 林甸县 | 大名县 | 桑日县 | 深州市 | 中山市 | 吴旗县 | 镇康县 | 微博 | 枣强县 | 金坛市 | 庐江县 | 泰宁县 | 博客 | 广州市 | 南雄市 | 辽中县 | 布拖县 | 齐河县 | 卢龙县 | 龙岩市 | 涟源市 | 台湾省 | 池州市 | 长垣县 | 建瓯市 | 孙吴县 | 夏邑县 | 永丰县 | 东港市 | 香港 | 永寿县 | 德钦县 | 荣昌县 | 肇庆市 | 龙南县 | 荃湾区 | 东至县 | 色达县 | 大城县 | 垦利县 | 濮阳市 | 从化市 | 清镇市 | 阳朔县 | 竹溪县 | 潼南县 | 宜章县 | 光泽县 | 台南市 | 镇康县 | 泰来县 | 中宁县 | 漠河县 | 固镇县 | 新津县 | 买车 | 临城县 | 沂南县 | 西乡县 | 吴旗县 | 酒泉市 | 特克斯县 | 琼结县 | 浙江省 | 同心县 | 五华县 | 双江 | 彰武县 | 峡江县 | 崇仁县 | 清原 | 湘潭市 | 阜平县 | 师宗县 | 长春市 | 武宣县 | 临潭县 | 孙吴县 | 太和县 | 武胜县 | 东乡县 | 马尔康县 | 迁西县 |