<p>In a data encryption method, a request to access data is received from a requestor. A determination is made as to whether the requestor is authorized to access the data. In response to determining that the requestor is authorized to access the data, a determination is made as to whether the data is encrypted. An encryption key is requested from the requestor, in response to determining that the data is not encrypted.</p>
申请公布号
WO2007118777(A1)
申请公布日期
2007.10.25
申请号
WO2007EP52981
申请日期
2007.03.28
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION;IBM UNITED KINGDOM LIMITED;HARTUNG, MICHAEL, HOWARD;HSU, YU-CHENG;KERN, ROBERT, FREDERIC