公开(公告)号：US20110314541A1

公开(公告)日：2011-12-22

申请号：US13003833

申请日：2009-06-22

申请人： Peter Svensson ,  Mikael Lostedt

发明人： Peter Svensson ,  Mikael Lostedt

IPC分类号： G06F21/00

CPC分类号： G01R31/31719

摘要： An integrated circuit having a first security operation state arranged for utility operation, and a second security operation state arranged for test operation is disclosed. In the second security operation state, a first set and a second set of objects are available, while a third set of objects are unavailable. In the first security operation state, the third set of objects is available with authorization by a security mechanism of the first security operation state. The third set of objects is made unavailable by logic circuitry of the integrated circuit, when operating in the second security operation state, by the logic circuitry being arranged to control limited operation of parts of the integrated circuit comprising the third set of objects when operating in the second security operation state such that bypassing of the security mechanism of the first security operation state is disabled. An electronic apparatus utilising such an integrated circuit, and a method are also disclosed.

摘要翻译： 公开了一种具有用于公用事业操作的第一安全操作状态的集成电路和用于测试操作的第二安全操作状态。 在第二安全操作状态下，可以使用第一组和第二组对象，而第三组对象不可用。 在第一安全操作状态下，通过第一安全操作状态的安全机制的授权可以获得第三组对象。 当在第二安全操作状态下工作时，第三组对象使得集成电路的逻辑电路不可用，逻辑电路被布置成在包括第三组对象的集成电路的部件的操作时控制有限的操作 所述第二安全操作状态使得所述第一安全操作状态的所述安全机制的旁路被禁用。 还公开了一种利用这种集成电路的电子设备，以及一种方法。