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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal align=center style='text-align:center;line-height:15.0pt'><span style='font-size:14.0pt;font-family:黑体'>中国计算机学会</span><span lang=EN-US style='font-size:14.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;line-height:15.0pt'><span lang=EN-US style='font-size:14.0pt'>China Computer Federation<o:p></o:p></span></p><p align=center style='text-align:center'><b><span lang=EN-US style='font-size:26.0pt'>CCF</span></b><b><span style='font-size:26.0pt;font-family:黑体'>上海会员活动中心</span></b><span lang=EN-US style='font-size:26.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;line-height:110%'><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>将于</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'>2019</span><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>年</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'>5</span><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>月</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'>24</span><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>日（星期五）</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'>14:00-16:30<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;line-height:110%'><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>在华东理工大学（徐汇区梅陇路</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'>130</span><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>号，实验十五楼</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'>207</span><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>）举行</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;line-height:110%'><span style='font-size:12.0pt;line-height:110%;font-family:黑体'>研讨会，敬请光临</span><span lang=EN-US style='font-size:12.0pt;line-height:110%'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:15.0pt'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:24.0pt'>“</span><span style='font-size:24.0pt;font-family:黑体'>区块链数据库与区块链安全</span><span lang=EN-US style='font-size:24.0pt'>”</span><span style='font-size:24.0pt;font-family:黑体'>研讨会</span><span lang=EN-US style='font-size:24.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:15.0pt'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span style='font-size:15.0pt;font-family:黑体'>主办单位</span><span lang=EN-US style='font-size:15.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'>CCF</span><span style='font-size:12.0pt;font-family:黑体'>上海会员活动中心</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span style='font-size:15.0pt;font-family:黑体'>会议联合承办</span><span lang=EN-US style='font-size:15.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span style='font-size:12.0pt;font-family:黑体'>华东理工大学</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span style='font-size:12.0pt;font-family:黑体'>华理</span><span lang=EN-US style='font-size:12.0pt'>-</span><span lang=EN-US> </span><span lang=EN-US style='font-size:12.0pt'>DAEX</span><span style='font-size:12.0pt;font-family:黑体'>区块链实验室</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:15.0pt'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:15.0pt;font-family:黑体'>会议组织</span><span lang=EN-US style='font-size:15.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span style='font-size:12.0pt;font-family:黑体'>执行主席：李建华，华东理工大学，副教授</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:21.0pt;text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'> </span><span style='font-size:12.0pt;font-family:黑体'>黄建华，华东理工大学，副教授</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:21.0pt;text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span style='font-size:12.0pt;font-family:黑体'>联系人：</span><span lang=EN-US style='font-size:12.0pt'> </span><span style='font-size:12.0pt;font-family:黑体'>李静，华东理工大学，</span><span class=MsoHyperlink><span lang=EN-US>ljing@ecust.edu.cn</span></span><span lang=EN-US>, </span><span lang=EN-US style='font-size:12.0pt'>021-64253682<o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:15.0pt'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:15.0pt;font-family:黑体'>会议日程</span><span lang=EN-US style='font-size:15.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'>14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>00-14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>05 </span><span style='font-size:12.0pt;font-family:黑体'>报到</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'>14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>05-14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>10 <o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:25.0pt;mso-line-height-rule:exactly'><span style='font-size:12.0pt;font-family:黑体'>承办单位致欢迎词</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'>14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>10-14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>40</span><span style='font-size:12.0pt;font-family:黑体'>：<b>报告</b></span><b><span lang=EN-US style='font-size:12.0pt'>1</span></b><b><span style='font-size:12.0pt;font-family:黑体'>、区块链数据库系统——区块链与数据库的共融</span></b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:25.0pt;mso-line-height-rule:exactly'><span style='font-size:12.0pt;font-family:黑体'>金澈清，华东师范大学教授，数据科学与工程学院副院长</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'>14</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>45-15</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>15</span><span style='font-size:12.0pt;font-family:黑体'>：<b>报告</b></span><b><span lang=EN-US style='font-size:12.0pt'>2</span></b><b><span style='font-size:12.0pt;font-family:黑体'>、区块链共识机制中的性能和安全问题及解决方案</span></b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:25.0pt;mso-line-height-rule:exactly'><b><span style='font-size:12.0pt;font-family:黑体'>黄建华</span></b><span style='font-size:12.0pt;font-family:黑体'>，华东理工大学副教授，华理</span><span lang=EN-US style='font-size:12.0pt'>- DAEX</span><span style='font-size:12.0pt;font-family:黑体'>区块链实验室主任</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'>15</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>15-16</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>00 </span><b><span style='font-size:12.0pt;font-family:黑体'>讨论会</span></b><b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></b></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:25.0pt;mso-line-height-rule:exactly'><span lang=EN-US style='font-size:12.0pt'>16</span><span style='font-size:12.0pt;font-family:黑体'>：</span><span lang=EN-US style='font-size:12.0pt'>30 </span><b><span style='font-size:12.0pt;font-family:黑体'>结束</span></b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>如参会，请在<span lang=EN-US>5</span>月<span lang=EN-US>22</span>日前回复下附回执至李静老师（<span lang=EN-US>ljing@ecust.edu.cn</span>），以便提供会务。<span lang=EN-US><o:p></o:p></span></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><b><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>参会回执<span lang=EN-US><o:p></o:p></span></span></b></p><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width=612 style='width:459.0pt;border:solid windowtext 1.0pt'><tr style='height:30.0pt'><td width=91 style='width:68.1pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:30.0pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>姓名</span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=147 style='width:110.4pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:30.0pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:宋体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> </span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=85 style='width:63.7pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:30.0pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>单位</span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=289 style='width:216.8pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:30.0pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:宋体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> </span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td></tr><tr style='height:26.25pt'><td style='border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>电话</span><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> <span lang=EN-US><o:p></o:p></span></span></p></td><td width=147 style='width:110.4pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:宋体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> </span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=85 style='width:63.7pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>Email</span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=289 style='width:216.8pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:宋体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> </span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td></tr><tr style='height:26.25pt'><td style='border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>是否<span lang=EN-US>CCF</span>会员</span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=147 style='width:110.4pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:宋体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> </span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=85 style='width:63.7pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'>会员号</span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td><td width=289 style='width:216.8pt;border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm;height:26.25pt'><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><span lang=EN-US style='font-size:12.0pt;font-family:宋体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'> </span><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p></o:p></span></p></td></tr></table><p class=MsoNormal style='text-indent:0cm;line-height:12.0pt;layout-grid-mode:char'><b><span lang=EN-US style='font-size:12.0pt;font-family:黑体;position:relative;top:-11.0pt;mso-text-raise:11.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:15.0pt;font-family:黑体'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:15.0pt;font-family:黑体'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><b><span style='font-size:12.0pt;font-family:黑体'>会议地点</span></b><b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span style='font-size:12.0pt;font-family:黑体'>华东理工大学</span><span style='font-size:12.0pt;font-family:黑体'>，</span><span style='font-size:12.0pt;font-family:黑体'>徐汇区梅陇路</span><span lang=EN-US style='font-size:12.0pt'>130</span><span style='font-size:12.0pt;font-family:黑体'>号，实验十五楼</span><span lang=EN-US style='font-size:12.0pt'>207<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><img width=552 height=355 id="Picture_x0020_2" src="cid:image001.png@01D50F4B.8E13E510" alt="Description: Description: C:\Users\ecust\AppData\Local\Temp\1539308175(1).png"></span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><img width=553 height=266 id="Picture_x0020_1" src="cid:image002.jpg@01D50F4B.8E13E510"></span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center;text-indent:0cm'><span style='font-size:12.0pt;font-family:黑体'>校区三维地图，实验十五楼为图上红色标记位置。</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:ZH-CN'><br clear=all style='page-break-before:always'></span><p class=MsoNormal align=left style='text-align:left;text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:14.0pt;font-family:黑体'>演讲摘要</span><span lang=EN-US style='font-size:14.0pt'><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=2 align=center style='margin:0cm;margin-bottom:.0001pt;text-align:center;line-height:12.0pt;mso-line-height-rule:exactly'><b><span style='font-size:12.0pt'>区块链数据库系统</span></b><b><span lang=EN-US style='font-size:12.0pt;font-family:仿宋_GB2312'>——</span></b><b><span style='font-size:12.0pt'>区块链与数据库的共融</span></b><b><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center;line-height:24.0pt;mso-line-height-rule:exactly;layout-grid-mode:char'><b><span style='font-size:12.0pt;font-family:宋体'>摘</span></b><b><span style='font-size:12.0pt;font-family:宋体'>要</span></b><b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></b></p><p class=2 align=center style='margin:0cm;margin-bottom:.0001pt;text-align:center;line-height:12.0pt;mso-line-height-rule:exactly'><b><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:125%;layout-grid-mode:char'><span style='line-height:125%;font-family:宋体'>区块链技术可以在不可信多方之间构建信任关系，便于数据分享、流通、交易与保护。与广泛应用的关系数据库系统（</span><span lang=EN-US style='line-height:125%;font-family:仿宋_GB2312'>DBMS</span><span style='line-height:125%;font-family:宋体'>）相比，现有的区块链系统还存在一些局限性：数据语义仍然不够丰富、查询优化工作较为薄弱、缺乏面向轻客户端的可验证查询、缺乏统一的数据访问接口。针对上述四点局限性，华东师范大学区块链团队自主研发的区块链数据库（师大链）在保持区块链系统去中心化、防篡改、可追溯的基础上还具有高效的数据管理能力，具备如下特性：为区块数据添加语义、为查询优化构建基础设施、支持来自请客户端的可验证查询、提供</span><span lang=EN-US style='line-height:125%;font-family:仿宋_GB2312'>SQL-like</span><span style='line-height:125%;font-family:宋体'>查询语言。本报告将介绍区块链数据库的发展历程以及师大链的技术架构</span><span style='line-height:125%;font-family:宋体'>。</span><span lang=EN-US style='line-height:125%;font-family:仿宋_GB2312'><o:p></o:p></span></p><p class=2 align=center style='margin:0cm;margin-bottom:.0001pt;text-align:center;line-height:12.0pt;mso-line-height-rule:exactly'><b><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></b></p><p class=2 align=center style='margin:0cm;margin-bottom:.0001pt;text-align:center;line-height:12.0pt;mso-line-height-rule:exactly'><b><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></b></p><p class=2 align=center style='margin:0cm;margin-bottom:.0001pt;text-align:center;line-height:12.0pt;mso-line-height-rule:exactly'><b><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></b></p><p class=2 align=center style='margin:0cm;margin-bottom:.0001pt;text-align:center;line-height:12.0pt;mso-line-height-rule:exactly'><b><span style='font-size:12.0pt'>区块链共识机制中的性能和安全问题及解决方案</span></b><b><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center;line-height:24.0pt;mso-line-height-rule:exactly;layout-grid-mode:char'><b><span style='font-size:12.0pt;font-family:宋体'>摘</span></b><b><span style='font-size:12.0pt;font-family:宋体'>要</span></b><b><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></b></p><p class=MsoNormal style='text-indent:21.0pt;line-height:125%;layout-grid-mode:char'><span lang=EN-US style='line-height:125%;font-family:仿宋_GB2312'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:21.0pt;line-height:125%;layout-grid-mode:char'><span style='line-height:125%;font-family:宋体'>自提出</span><span lang=EN-US style='line-height:125%;font-family:仿宋_GB2312'>PoW</span><span style='line-height:125%;font-family:宋体'>共识算法以来，针对区块链的共识算法接连不断被提出，但这些算法都无法在吞吐量、可扩展性、资源消耗和安全性上同时达到较好的效果。报告对区块链共识机制存在的性能和安全问题进行分析，并探讨物联网区块链应用中面临的技术挑战，对解决区块链应用挑战给出建议和方案</span><span style='line-height:125%;font-family:宋体'>。</span><span lang=EN-US style='line-height:125%;font-family:仿宋_GB2312'><o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div></body></html>