发明名称 |
METHOD AND APPARATUS FOR PROVIDING SECURE LINKING TO A USER IDENTITY IN A DIGITAL RIGHTS MANAGEMENT SYSTEM |
摘要 |
Disclosed is a DRM device and method for providing secure linking to a user identity. A first request is sent to a subscriber identity module. A message is received from the subscriber identity module via a secure authenticated channel. The message comprises at least a a master key identifier, a random number, and a derived key. In response to the message, a second request is sent to a DRM server. The second request comprises at least a master key identifier, the device identifier, and a random number. Also disclosed is a DRM server and method for providing secure linking to a user identity. A first request is received from a DRM device. The first request comprises at least master key identifier, a device identifier, and a random number. The DRM device is authenticated. A second request for an application specific key is sent to a trusted key management server. The second request comprises at least a master key identifier. At least a key is received from the trusted key management server. A derived key is determined from the key received from the trusted key management server based at least on the device identifier and the random number. A challenge/response scheme is used to determine whether the derived key of the DRM server matches a derived key of the DRM device. |
申请公布号 |
WO2009053818(A3) |
申请公布日期 |
2009.07.09 |
申请号 |
WO2008IB02822 |
申请日期 |
2008.10.22 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);CHENG, YI;HARTUNG, FRANK;MITRA, NILO;MAS IVARS, IGNACIO |
发明人 |
CHENG, YI;HARTUNG, FRANK;MITRA, NILO;MAS IVARS, IGNACIO |
分类号 |
H04L29/06 |
主分类号 |
H04L29/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|