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    • 8. 发明授权
    • Controlling access to electronic documents
    • 控制电子文件的访问
    • US07840802B1
    • 2010-11-23
    • US12027981
    • 2008-02-07
    • William M. ShapiroJames Donahue
    • William M. ShapiroJames Donahue
    • H04L29/06
    • G06F21/6218H04L9/321H04L9/3247H04L63/0428H04L63/0807H04L63/102H04L2209/60
    • Methods and apparatus, including computer program products, for controlling access to an electronic document. A document management system receives a request from a first user at a first user location for an electronic document. The first user is authenticated using a set of access policies for the electronic document, to verify that the first user is authorized to obtain the electronic document. If so, an encrypted rendition is passed to the first user. A request for access to the encrypted rendition from a second user is then received. The second user is authenticated, using the set of access policies, to establish which operations the second user may perform on the encrypted rendition. A voucher including an electronic key for decrypting the encrypted rendition and the set of access policies is created at the document management system. The voucher is passed to the second user location.
    • 用于控制电子文档访问的方法和装置,包括计算机程序产品。 文档管理系统在用于电子文档的第一用户位置处接收来自第一用户的请求。 第一用户使用一组电子文档的访问策略进行身份验证,以验证第一用户是否被授权获取电子文档。 如果是这样,加密的再现被传递给第一个用户。 然后接收从第二用户访问加密再现的请求。 使用一组访问策略对第二用户进行身份验证,以确定第二用户可以对加密的再现执行哪些操作。 在文件管理系统中创建包括用于解密加密的再现的电子密钥和一组访问策略的凭证。 凭证被传递到第二个用户位置。
    • 9. 发明授权
    • Controlling access to electronic documents
    • 控制电子文件的访问
    • US07434048B1
    • 2008-10-07
    • US10659874
    • 2003-09-09
    • Bill ShapiroJames Donahue
    • Bill ShapiroJames Donahue
    • H04L9/00
    • G06F21/6218H04L9/321H04L9/3247H04L63/0428H04L63/0807H04L63/102H04L2209/60
    • Methods and apparatus, including computer program products, for controlling access to an electronic document. A document management system receives a request from a first user at a first user location for an electronic document. The first user is authenticated using a set of access policies for the electronic document, to verify that the first user is authorized to obtain the electronic document. If so, an encrypted rendition is passed to the first user. A request for access to the encrypted rendition from a second user is then received. The second user is authenticated, using the set of access policies, to establish which operations the second user may perform on the encrypted rendition. A voucher including an electronic key for decrypting the encrypted rendition and the set of access policies is created at the document management system. The voucher is passed to the second user location.
    • 用于控制电子文档访问的方法和装置,包括计算机程序产品。 文档管理系统在用于电子文档的第一用户位置处接收来自第一用户的请求。 第一用户使用一组电子文档的访问策略进行身份验证,以验证第一用户是否被授权获取电子文档。 如果是这样,加密的再现被传递给第一个用户。 然后接收从第二用户访问加密再现的请求。 使用一组访问策略对第二用户进行身份验证,以确定第二用户可以对加密的再现执行哪些操作。 在文件管理系统中创建包括用于解密加密再现的电子密钥和一组访问策略的凭证。 凭证被传递到第二个用户位置。