Invention Grant
US07716487B2 License-based cryptographic technique, particularly suited for use in a digital rights management system, for controlling access and use of bore resistant software objects in a client computer
有权
基于许可证的密码技术，特别适用于数字版权管理系统，用于控制客户端计算机中的耐撬软件对象的访问和使用
- Patent Title: License-based cryptographic technique, particularly suited for use in a digital rights management system, for controlling access and use of bore resistant software objects in a client computer
- Patent Title (中): 基于许可证的密码技术，特别适用于数字版权管理系统，用于控制客户端计算机中的耐撬软件对象的访问和使用
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Application No.: US10938472Application Date: 2004-09-10
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Publication No.: US07716487B2Publication Date: 2010-05-11
- Inventor: Ramarathnam Venkatesan , Yacov Yacobi
- Applicant: Ramarathnam Venkatesan , Yacov Yacobi
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Lee & Hayes, PLLC
- Main IPC: H04L9/32
- IPC: H04L9/32
Abstract:
A technique for imparting substantial break-once-run-everywhere (BORE) resistance to passive and active software objects, and for controlling access and use of resulting protected objects by a client computer (400). Specifically, a relatively large number, n, of identical watermarks (1720) are embedded throughout a software object (1700), through use of n different secret watermark keys to form a protected object, with each key defining a pointer to a location in the protected object at which a corresponding watermark appears.
Public/Granted literature
Information query
