《钟形罩》(The Bell Jar)是美国自白派女诗人西尔维亚.普拉斯(Sylvia Plath)唯一一部长篇小说,讲述了一个名为埃斯德.格林伍德的全优女生自杀未遂至逐渐康复的故事。本文通过经典叙事学、后经典叙事学及文本细读方法,分别从内容和形式...《钟形罩》(The Bell Jar)是美国自白派女诗人西尔维亚.普拉斯(Sylvia Plath)唯一一部长篇小说,讲述了一个名为埃斯德.格林伍德的全优女生自杀未遂至逐渐康复的故事。本文通过经典叙事学、后经典叙事学及文本细读方法,分别从内容和形式两方面审视文本所建立及推崇的意识形态权威,这种意识形态权威是通过女性叙述者的自我叙述建立起来,意在打破传统社会对女性的社会定位。但由于文本中所渗透的女性意识无法完全摆脱社会传统女性意识的阻碍,最终,女性权威依然不可避免地处于男性权威的统治之下。展开更多
这组文章包括康奈尔大学亚洲学系助理教授孙修暎英文著作Writing for Print:Publishing and the Making of Textual Authority in Late Imperial China(中文译名为《为刻而书:晚期中华帝国的出版与文本权威的制造》,哈佛大学出版社2018...这组文章包括康奈尔大学亚洲学系助理教授孙修暎英文著作Writing for Print:Publishing and the Making of Textual Authority in Late Imperial China(中文译名为《为刻而书:晚期中华帝国的出版与文本权威的制造》,哈佛大学出版社2018年版)的三篇中文书评及作者的回应。回应用英文撰写,现已翻译成中文。展开更多
In most existing CP-ABE schemes, there is only one authority in the system and all the public keys and private keys are issued by this authority, which incurs ciphertext size and computation costs in the encryption an...In most existing CP-ABE schemes, there is only one authority in the system and all the public keys and private keys are issued by this authority, which incurs ciphertext size and computation costs in the encryption and decryption operations that depend at least linearly on the number of attributes involved in the access policy. We propose an efficient multi-authority CP-ABE scheme in which the authorities need not interact to generate public information during the system initialization phase. Our scheme has constant ciphertext length and a constant number of pairing computations. Our scheme can be proven CPA-secure in random oracle model under the decision q-BDHE assumption. When user's attributes revocation occurs, the scheme transfers most re-encryption work to the cloud service provider, reducing the data owner's computational cost on the premise of security. Finally the analysis and simulation result show that the schemes proposed in this thesis ensure the privacy and secure access of sensitive data stored in the cloud server, and be able to cope with the dynamic changes of users' access privileges in large-scale systems. Besides, the multi-authority ABE eliminates the key escrow problem, achieves the length of ciphertext optimization and enhances the effi ciency of the encryption and decryption operations.展开更多
文摘《钟形罩》(The Bell Jar)是美国自白派女诗人西尔维亚.普拉斯(Sylvia Plath)唯一一部长篇小说,讲述了一个名为埃斯德.格林伍德的全优女生自杀未遂至逐渐康复的故事。本文通过经典叙事学、后经典叙事学及文本细读方法,分别从内容和形式两方面审视文本所建立及推崇的意识形态权威,这种意识形态权威是通过女性叙述者的自我叙述建立起来,意在打破传统社会对女性的社会定位。但由于文本中所渗透的女性意识无法完全摆脱社会传统女性意识的阻碍,最终,女性权威依然不可避免地处于男性权威的统治之下。
文摘这组文章包括康奈尔大学亚洲学系助理教授孙修暎英文著作Writing for Print:Publishing and the Making of Textual Authority in Late Imperial China(中文译名为《为刻而书:晚期中华帝国的出版与文本权威的制造》,哈佛大学出版社2018年版)的三篇中文书评及作者的回应。回应用英文撰写,现已翻译成中文。
基金supported by National Natural Science Foundation of China under Grant No.60873231Natural Science Foundation of Jiangsu Province under Grant No.BK2009426+1 种基金Major State Basic Research Development Program of China under Grant No.2011CB302903Key University Science Research Project of Jiangsu Province under Grant No.11KJA520002
文摘In most existing CP-ABE schemes, there is only one authority in the system and all the public keys and private keys are issued by this authority, which incurs ciphertext size and computation costs in the encryption and decryption operations that depend at least linearly on the number of attributes involved in the access policy. We propose an efficient multi-authority CP-ABE scheme in which the authorities need not interact to generate public information during the system initialization phase. Our scheme has constant ciphertext length and a constant number of pairing computations. Our scheme can be proven CPA-secure in random oracle model under the decision q-BDHE assumption. When user's attributes revocation occurs, the scheme transfers most re-encryption work to the cloud service provider, reducing the data owner's computational cost on the premise of security. Finally the analysis and simulation result show that the schemes proposed in this thesis ensure the privacy and secure access of sensitive data stored in the cloud server, and be able to cope with the dynamic changes of users' access privileges in large-scale systems. Besides, the multi-authority ABE eliminates the key escrow problem, achieves the length of ciphertext optimization and enhances the effi ciency of the encryption and decryption operations.
