Method and central processing unit for processing encrypted software
    1.
    发明专利
    Method and central processing unit for processing encrypted software 审中-公开
    用于处理加密软件的方法和中央处理单元

    公开(公告)号:JP2008033457A

    公开(公告)日:2008-02-14

    申请号:JP2006203989

    申请日:2006-07-26

    Abstract: PROBLEM TO BE SOLVED: To provide a central processing unit (CPU) for processing an encrypted software. SOLUTION: An encrypted software section is encrypted with a management key MK, and the MK being encrypted with a device key DK as an encrypted MK. The CPU comprises processing and cache unit, and cryptographic unit. The cryptographic unit comprises device key storage unit for storing the DK, a plurality of management key storage units for storing MKs, wherein each management key storage unit corresponding to a management key index MKI, and a decryption unit. The decryption unit decrypts an encrypted MK with the DK to obtain a MK, stores the MK to a management key storage unit, and output a MKI corresponding to the management key storage unit, thus the MKI is used to correspond to the encrypted software section. Wherein, the decryption unit invokes corresponding MK according to the MKI and decrypts the encrypted software section, and directly transfers the decrypted software code and/or data to the processing and cache unit. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于处理加密软件的中央处理单元(CPU)。 解决方案:使用管理密钥MK对加密的软件部分进行加密,并且使用设备密钥DK将MK加密为加密的MK。 CPU包括处理和缓存单元以及加密单元。 密码单元包括用于存储DK的设备密钥存储单元,用于存储MK的多个管理密钥存储单元,其中与管理密钥索引MKI对应的每个管理密钥存储单元和解密单元。 解密单元用DK解密加密的MK以获得MK,将MK存储到管理密钥存储单元,并且输出与管理密钥存储单元相对应的MKI,因此MKI被用于对应于加密的软件部分。 其中,解密单元根据MKI调用相应的MK,解密加密的软件部分,并将解密的软件代码和/或数据直接传送到处理和高速缓存单元。 版权所有(C)2008,JPO&INPIT

    Enhancing the display output of portable devices

    公开(公告)号:GB2420477A

    公开(公告)日:2006-05-24

    申请号:GB0522809

    申请日:2005-11-09

    Applicant: IBM

    Abstract: An intelligent surrogate apparatus for enhancing the display output and interaction capability of a portable device comprises a communication interface for connecting the portable device and an display controller. The apparatus comprises a connection manager for establishing connection and managing data flows; a graphics data receiver for receiving structured graphics data output from an application running on the portable device via the communication interface and converting them to a corresponding graphic function invocation; and a windows manager which may invoke a graphic function library to organize application windows according to the graphic function invocation. The apparatus can organize windows on the external display and/or interact with the application program in response to an external keyboard/mouse event so that the portable device is endued with additional capabilities of interactive operations.

    Apparatus and method for enhancing the capability of the display output of portable devices

    公开(公告)号:GB2420477B

    公开(公告)日:2009-01-07

    申请号:GB0522809

    申请日:2005-11-09

    Applicant: IBM

    Abstract: An intelligent surrogate apparatus and method for enhancing the display output and interaction capability of a portable device. The apparatus comprises a communication interface for connecting the portable device and an display controller. In addition, the apparatus comprises a connection manager for establishing connection and managing data flows; a graphics data receiver for receiving structured graphics data output from an application running on the portable device via the communication interface and converting them to a corresponding graphic function invocation; and a windows manager which may invoke a graphic function library to organize application windows according to the graphic function invocation. The apparatus may comprise fully functional computer keyboard input and mouse input capability. It can organize windows on the external display and/or interact with the application program in response to an external keyboard/mouse event so that the portable device is endued with additional capabilities of interactive operations.

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