公开(公告)号：US20140143885A1

公开(公告)日：2014-05-22

申请号：US13681861

申请日：2012-11-20

Applicant: ATI TECHNOLOGIES ULC

Inventor： Sergey BLOTSKY ,  Kathirkamanathan Nadarajah ,  Jianfei Ye ,  Xing Yue Zhang

IPC: G06F21/12

CPC classification number: G06F21/121 ,  G06F21/572 ,  G06F2221/2141 ,  G06F2221/2149 ,  H04L63/10

Abstract: A device receives a request to use a software program, determines a comparison indicator based on receiving the request, and determines whether a license for the software program is valid based on a license validity indicator, stored in a secure environment, and the comparison indicator. The device permits execution of secure code stored in the secure environment when the license is determined to be valid, and prevents execution of the secure code stored in the secure environment when the license is determined to be invalid.

Abstract translation: 设备接收使用软件程序的请求，基于接收到请求确定比较指示符，并且基于存储在安全环境中的许可证有效性指示符和比较指示器来确定软件程序的许可证是否有效。 当许可证被确定为有效时，该设备允许执行存储在安全环境中的安全代码，并且当许可证被确定为无效时，防止执行存储在安全环境中的安全代码。