公开(公告)号：EP3025266A4

公开(公告)日：2017-03-01

申请号：EP14829313

申请日：2014-07-15

申请人： INTEL CORP

发明人： ROZAS CARLOS V ,  ANATI ITTAI ,  GERZON GIDEON ,  GUERON SHAY ,  JOHNSON SIMON P ,  MCKEEN FRANCIS X ,  SAVAGAONKAR UDAY R ,  SCARLATA VINCENT R

IPC分类号： G06F21/00 ,  G06F9/06

CPC分类号： H04L9/3239 ,  G06F12/1441 ,  G06F21/71 ,  G06F2221/2111

摘要： Embodiments of an invention for measuring a secure enclave are disclosed. In one embodiment, a processor includes an instruction unit and an execution unit. The instruction unit is to receive a first, a second, and a third instruction. The execution unit is to execute the first, the second, and the third instruction. Execution of the first instruction includes initializing a measurement field in a control structure of a secure enclave with an initial value. Execution of the second instruction includes adding a region to the secure enclave. Execution of the third instruction includes measuring a subregion of the region.

摘要翻译： 公开了用于测量安全飞地的发明的实施例。 在一个实施例中，处理器包括指令单元和执行单元。 指令单元将接收第一，第二和第三指令。 执行单元执行第一条，第二条和第三条指令。 第一指令的执行包括用初始值初始化安全区域的控制结构中的测量字段。 第二条指令的执行包括向安全飞地增加一个区域。 第三条指令的执行包括测量该地区的一个子地区。

公开(公告)号：EP3014461A4

公开(公告)日：2017-03-01

申请号：EP14818405

申请日：2014-05-30

申请人： INTEL CORP

发明人： GERZON GIDEON ,  STARK JARED W ,  DISKIN GAL

IPC分类号： G06F21/52

CPC分类号： G06F21/52

公开(公告)号：EP2619705A4

公开(公告)日：2015-01-21

申请号：EP11827696

申请日：2011-09-24

申请人： INTEL CORP

发明人： GUERON SHAY ,  GERZON GIDEON ,  ANATI ITTAI ,  DOWECK JACOB ,  MAOR MOSHE

IPC分类号： G06F12/14 ,  G06F21/52 ,  G06F21/64

CPC分类号： G06F12/1408 ,  G06F21/52 ,  G06F21/64

摘要： A method and apparatus for protecting against hardware attacks on system memory is provided. A mode of operation for block ciphers enhances the standard XTS-AES mode of operation to perform memory encryption by extending a tweak to include a "time stamp" indicator. An incrementing mechanism using the "time stamp" indicator generates a tweak which separates different contexts over different times such that the effect of "Type 2 replay attacks" is mitigated.