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    • 13. 发明授权
    • Method and apparatus for verifying integrity of redacted documents
    • 验证编码文件完整性的方法和装置
    • US08245038B2
    • 2012-08-14
    • US12055870
    • 2008-03-26
    • Philippe Jean-Paul GolleJessica N. StaddonRichard Chow
    • Philippe Jean-Paul GolleJessica N. StaddonRichard Chow
    • H04L29/06
    • G06F21/64
    • One embodiment of the present invention provides a system which allows a document owner to redact content from a document and allows a recipient of the redacted document to challenge the appropriateness of the redaction. During operation, the system allows the document owner to redact a string Mi from location i in the document. In doing so, the system produces a commitment Ci=C(Mi, Ri) based on string Mi and a string Ri used as randomness and communicates Ci to the recipient. When the recipient challenges the redaction, the system receives a topic string T from the recipient, and produces a string RT. The system then communicates RT to the recipient, thereby allowing the recipient to produce a commitment CT=C(T, RT) based on strings T and RT, and compare CT with Ci. Comparing commitment CT with Ci allows the recipient to test redactions for string equality.
    • 本发明的一个实施例提供了一种允许文档所有者从文档中修改内容并允许编辑文档的接收者挑战编辑的适当性的系统。 在操作期间,系统允许文档所有者从文档中的位置i修改字符串Mi。 在这样做时,系统基于字符串Mi产生承诺Ci = C(Mi,Ri)和用作随机性的字符串Ri,并将Ci传送给接收者。 当接收方挑战编辑时,系统从收件人接收主题字符串T,并产生字符串RT。 系统然后将RT传送给接收者,从而允许接收者基于字符串T和RT产生承诺CT = C(T,RT),并将CT与Ci进行比较。 将承诺CT与Ci进行比较,允许收件人对字符串相等性进行测试。
    • 15. 发明授权
    • Inbound content filtering via automated inference detection
    • 通过自动推断检测进入内容过滤
    • US07860885B2
    • 2010-12-28
    • US11951198
    • 2007-12-05
    • Richard ChowPhilippe J. P. GolleJessica N. Staddon
    • Richard ChowPhilippe J. P. GolleJessica N. Staddon
    • G06F17/30
    • G06F17/30867G06Q10/107Y10S707/99931Y10S707/99933Y10S707/99934
    • A system is provided to detect email spam. During operation, the system receives an email, extracts a set of keywords from the email body, and constructs a first search query based a keyword extracted from the email body. The system further constructs a second search query based on the keyword in the first query and one additional word which pertains to a known spam word or to the subject of the email. Next, the system receives a first number of hits and a second number of hits in response to the first and second search queries, respectively. The system then determines whether the email is spam based on the first number and the second number. The system can also perform Website filtering using inference detection which is based on search results received in response to search queries formulated with keywords extracted from Websites.
    • 提供了一个系统来检测电子邮件垃圾邮件。 在操作期间,系统接收电子邮件,从电子邮件正文中提取一组关键字,并根据从电子邮件正文中提取的关键字构建第一个搜索查询。 该系统还基于第一查询中的关键字和与已知垃圾邮件词或者电子邮件主题相关的一个附加词来构建第二搜索查询。 接下来,系统分别响应于第一和第二搜索查询接收第一数量的命中和第二数量的命中。 系统然后基于第一个数字和第二个数字确定该电子邮件是否为垃圾邮件。 该系统还可以使用推理检测来执行网站过滤,这是基于根据从网站提取的关键词制定的搜索查询而收到的搜索结果。
    • 16. 发明授权
    • Augmenting privacy policies with inference detection
    • 通过推理检测来增强隐私策略
    • US08458179B2
    • 2013-06-04
    • US11947292
    • 2007-11-29
    • Richard ChowPhillippe J. P. GolleJessica N. Staddon
    • Richard ChowPhillippe J. P. GolleJessica N. Staddon
    • G06F7/00G06F17/30G06F12/00
    • G06F21/6218
    • A system is provided for augmenting a privacy policy. During operation, the system obtains a set of training documents and at least one seed keyword associated with the privacy policy. The system extracts a number of candidate keywords from the training documents and formulates at least one query based on the candidate keywords. The system then issues the query to a corpus. In response to the query, the system receives a set of result documents. The system further determines whether a respective keyword extracted from the result documents matches at least one seed keyword. The system then augments the privacy policy by associating the candidate keyword corresponding to the respective keyword with the privacy policy based on the determination. In addition, the system applies the augmented privacy policy to a subject document and produces a result to indicate whether the subject document is in violation of the privacy policy.
    • 提供了一个用于增强隐私策略的系统。 在操作期间,系统获得一组训练文档和与隐私策略相关联的至少一个种子关键字。 该系统从培训文档中提取出一些候选关键字,并根据候选关键字制定至少一个查询。 然后,系统将查询发送到语料库。 响应查询,系统接收一组结果文档。 系统还确定从结果文档中提取的相应关键字是否匹配至少一个种子关键字。 然后,该系统通过基于该确定将与各个关键字对应的候选关键字与隐私策略相关联来增强隐私策略。 此外,系统将增强的隐私策略应用于主题文档,并产生结果以指示主题文档是否违反隐私策略。
    • 19. 发明申请
    • METHOD AND APPARATUS FOR VERIFYING INTEGRITY OF REDACTED DOCUMENTS
    • 用于验证删除文件完整性的方法和装置
    • US20090249220A1
    • 2009-10-01
    • US12055870
    • 2008-03-26
    • Philippe Jean-Paul GolleJessica N. StaddonRichard Chow
    • Philippe Jean-Paul GolleJessica N. StaddonRichard Chow
    • G06F3/00
    • G06F21/64
    • One embodiment of the present invention provides a system which allows a document owner to redact content from a document and allows a recipient of the redacted document to challenge the appropriateness of the redaction. During operation, the system allows the document owner to redact a string Mi from location i in the document. In doing so, the system produces a commitment Ci=C(Mi, Ri) based on string Mi and a string Ri used as randomness and communicates Ci to the recipient. When the recipient challenges the redaction, the system receives a topic string T from the recipient, and produces a string RT. The system then communicates RT to the recipient, thereby allowing the recipient to produce a commitment CT=C(T, RT) based on strings T and RT, and compare CT with Ci. Comparing commitment CT with Ci allows the recipient to test redactions for string equality.
    • 本发明的一个实施例提供了一种允许文档所有者从文档中修改内容并允许编辑文档的接收者挑战编辑的适当性的系统。 在操作期间,系统允许文档所有者从文档中的位置i修改字符串Mi。 在这样做时,系统基于字符串Mi产生承诺Ci = C(Mi,Ri)和用作随机性的字符串Ri,并将Ci传送给接收者。 当接收方挑战编辑时,系统从收件人接收主题字符串T,并产生字符串RT。 系统然后将RT传送给接收者,从而允许接收者基于字符串T和RT产生承诺CT = C(T,RT),并将CT与Ci进行比较。 将承诺CT与Ci进行比较,允许收件人对字符串相等性进行测试。