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1. 发明授权

US07673155B2 Microprocessor with improved task management and table management mechanism 失效
标题翻译：微处理器具有改进的任务管理和表管理机制
公开(公告)号：US07673155B2
公开(公告)日：2010-03-02
申请号：US12118291
申请日：2008-05-09
申请人： Mikio Hashimoto , Kensaku Fujimoto , Kenji Shirakawa
发明人： Mikio Hashimoto , Kensaku Fujimoto , Kenji Shirakawa
IPC分类号： H04L9/32
CPC分类号： G06F21/72 , G06F21/123 , G06F21/126 , G06F2221/2107
摘要： A tamper resistant microprocessor has a task state table for assigning a task identifier to a task that can take a plurality of states, and storing a state of the task in correspondence to the task identifier; a task register for storing the task identifier of a currently executed task; an interface for reading a program stored in a form encrypted by using a program key at an external memory, in units of cache lines, when a request for the task is made; an encryption processing unit for generating decryption keys that are different for different cache lines, according to the program key, and decrypt a content read by the interface; a cache memory formed by a plurality of cache lines each having a tag, for storing the task identifier corresponding to a decryption key used in decrypting each cache line in the tag of each cache line; and an access check unit for comparing the task identifier stored in the tag of each cache line with a value of the task register, and discarding a content of each cache line when the task identifier in the tag and the value of the task register do not coincide.
摘要翻译：防篡改微处理器具有任务状态表，用于将任务标识符分配给可以采取多种状态的任务，并且存储对应于任务标识符的任务状态; 用于存储当前执行的任务的任务标识符的任务寄存器; 当进行任务请求时，以高速缓存线为单位读取以外部存储器上的程序密钥加密的形式存储的程序的接口; 加密处理单元，用于根据程序密钥生成不同的高速缓存行不同的解密密钥，并解密由界面读取的内容; 由多个高速缓存行形成的高速缓冲存储器，每个高速缓存行均具有标签，用于存储对应于在每个高速缓存行的标签中对每个高速缓存行进行解密中使用的解密密钥相对应的任务标识符; 以及访问检查单元，用于将存储在每个高速缓存行的标签中的任务标识符与任务寄存器的值进行比较，并且当标签中的任务标识符和任务寄存器的值不为止时，丢弃每个高速缓存行的内容重合。

2. 发明授权

US07424622B2 Microprocessor with improved task management and table management mechanism 失效
标题翻译：微处理器具有改进的任务管理和表管理机制
公开(公告)号：US07424622B2
公开(公告)日：2008-09-09
申请号：US10259379
申请日：2002-09-30
申请人： Mikio Hashimoto , Kensaku Fujimoto , Kenji Shirakawa
发明人： Mikio Hashimoto , Kensaku Fujimoto , Kenji Shirakawa
IPC分类号： H04L9/32
CPC分类号： G06F21/72 , G06F21/123 , G06F21/126 , G06F2221/2107
摘要： A tamper resistant microprocessor has a task state table for assigning a task identifier to a task that can take a plurality of states, and storing a state of the task in correspondence to the task identifier; a task register for storing the task identifier of a currently executed task; an interface for reading a program stored in a form encrypted by using a program key at an external memory, in units of cache lines, when a request for the task is made; an encryption processing unit for generating decryption keys that are different for different cache lines, according to the program key, and decrypt a content read by the interface; a cache memory formed by a plurality of cache lines each having a tag, for storing the task identifier corresponding to a decryption key used in decrypting each cache line in the tag of each cache line; and an access check unit for comparing the task identifier stored in the tag of each cache line with a value of the task register, and discarding a content of each cache line when the task identifier in the tag and the value of the task register do not coincide.
摘要翻译：防篡改微处理器具有任务状态表，用于将任务标识符分配给可以采取多种状态的任务，并且存储对应于任务标识符的任务状态; 用于存储当前执行的任务的任务标识符的任务寄存器; 当进行任务请求时，以高速缓存线为单位读取以外部存储器上的程序密钥加密的形式存储的程序的接口; 加密处理单元，用于根据程序密钥生成不同的高速缓存行不同的解密密钥，并解密由界面读取的内容; 由多个高速缓存行形成的高速缓冲存储器，每个高速缓存行均具有标签，用于存储对应于在每个高速缓存行的标签中对每个高速缓存行进行解密中使用的解密密钥相对应的任务标识符; 以及访问检查单元，用于将存储在每个高速缓存行的标签中的任务标识符与任务寄存器的值进行比较，并且当标签中的任务标识符和任务寄存器的值不为止时，丢弃每个高速缓存行的内容重合。

3. 发明授权

US07353404B2 Tamper resistant microprocessor 失效
标题翻译：防篡改微处理器
公开(公告)号：US07353404B2
公开(公告)日：2008-04-01
申请号：US11071327
申请日：2005-03-04
申请人： Mikio Hashimoto , Keiichi Teramoto , Takeshi Saito , Kenji Shirakawa , Kensaku Fujimoto
发明人： Mikio Hashimoto , Keiichi Teramoto , Takeshi Saito , Kenji Shirakawa , Kensaku Fujimoto
IPC分类号： G06F21/00
CPC分类号： G06F21/10 , G06F21/123 , G06F21/72 , G06F2221/0797
摘要： Under a multi-task environment, a tamper resistant microprocessor saves a context information for one program whose execution is to be interrupted, where the context information contains information indicating an execution state of that one program and the execution code encryption key of that one program. An execution of that one program can be restarted by recovering the execution state of that one program from the saved context information. The context information can be encrypted by using the public key of the microprocessor, and then decrypted by using the secret key of the microprocessor.
摘要翻译：在多任务环境中，防篡改微处理器为执行中断的一个程序保存上下文信息，其中上下文信息包含指示该一个程序的执行状态的信息和该一个程序的执行代码加密密钥。可以通过从保存的上下文信息中恢复该一个程序的执行状态来重新启动该一个程序的执行。可以通过使用微处理器的公钥来加密上下文信息，然后使用微处理器的密钥进行解密。

4. 发明授权

US07065215B2 Microprocessor with program and data protection function under multi-task environment 失效
公开(公告)号：US07065215B2
公开(公告)日：2006-06-20
申请号：US09984407
申请日：2001-10-30
申请人： Kenji Shirakawa , Mikio Hashimoto , Keiichi Teramoto , Satoshi Ozaki , Kensaku Fujimoto
发明人： Kenji Shirakawa , Mikio Hashimoto , Keiichi Teramoto , Satoshi Ozaki , Kensaku Fujimoto
IPC分类号： G06F17/00
CPC分类号： G06F21/71 , G06F2221/2105
摘要： In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system.

5. 发明授权

US07219369B2 Internal memory type tamper resistant microprocessor with secret protection function 有权
标题翻译：内部存储型防篡改微处理器具有秘密保护功能
公开(公告)号：US07219369B2
公开(公告)日：2007-05-15
申请号：US10391618
申请日：2003-03-20
申请人： Mikio Hashimoto , Kensaku Yamaguchi , Kenji Shirakawa , Kensaku Fujimoto
发明人： Mikio Hashimoto , Kensaku Yamaguchi , Kenji Shirakawa , Kensaku Fujimoto
IPC分类号： G06F21/22 , G06F12/14
CPC分类号： G06F12/1466 , G06F12/1475
摘要： In an inner memory type tamper resistant microprocessor, a requested secret protection attribute requested for each access target memory page by a task is set and stored exclusively from other tasks, at a time of reading a program into memory pages and executing the program as the task, and a memory secret protection attribute is set and stored for each access target memory page by the task, at a time of executing the task. Then, an access to each access target memory page is refused when the requested secret protection attribute for each access target memory page and the memory secret protection attribute for each access target memory page do not coincide.
摘要翻译：在内部存储器型防篡改微处理器中，在将程序读入存储器页面并执行程序作为任务时，由任务专门为每个访问目标存储器页面请求的请求秘密保护属性被设置和独占地从其他任务中存储并且在执行任务时由任务设置并存储每个访问目标存储器页面的存储器秘密保护属性。然后，当针对每个访问目标存储器页面的请求的秘密保护属性和每个访问目标存储器页面的存储器秘密保护属性不一致时，对每个访问目标存储器页面的访问被拒绝。

6. 发明申请

US20060126849A1 Microprocessor with program and data protection function under multi-task environment 失效
公开(公告)号：US20060126849A1
公开(公告)日：2006-06-15
申请号：US11335601
申请日：2006-01-20
申请人： Kenji Shirakawa , Mikio Hashimoto , Keiichi Teramoto , Satoshi Ozaki , Kensaku Fujimoto
发明人： Kenji Shirakawa , Mikio Hashimoto , Keiichi Teramoto , Satoshi Ozaki , Kensaku Fujimoto
IPC分类号： H04L9/00
CPC分类号： G06F21/71 , G06F2221/2105
摘要： In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system.

7. 发明申请

US20050166069A1 Tamper resistant microprocessor 失效
标题翻译：防篡改微处理器
公开(公告)号：US20050166069A1
公开(公告)日：2005-07-28
申请号：US11071327
申请日：2005-03-04
申请人： Mikio Hashimoto , Keiichi Teramoto , Takeshi Saito , Kenji Shirakawa , Kensaku Fujimoto
发明人： Mikio Hashimoto , Keiichi Teramoto , Takeshi Saito , Kenji Shirakawa , Kensaku Fujimoto
IPC分类号： G06F15/00 , G06F1/00 , G06F15/16 , G06F21/10 , G06F21/12 , G06F21/72 , H04L9/32
CPC分类号： G06F21/10 , G06F21/123 , G06F21/72 , G06F2221/0797
摘要： Under a multi-task environment, a tamper resistant microprocessor saves a context information for one program whose execution is to be interrupted, where the context information contains information indicating an execution state of that one program and the execution code encryption key of that one program. An execution of that one program can be restarted by recovering the execution state of that one program from the saved context information. The context information can be encrypted by using the public key of the microprocessor, and then decrypted by using the secret key of the microprocessor.
摘要翻译：在多任务环境中，防篡改微处理器为执行中断的一个程序保存上下文信息，其中上下文信息包含指示该一个程序的执行状态的信息和该一个程序的执行代码加密密钥。可以通过从保存的上下文信息中恢复该一个程序的执行状态来重新启动该一个程序的执行。可以通过使用微处理器的公钥来加密上下文信息，然后使用微处理器的密钥进行解密。

8. 发明授权

US07673152B2 Microprocessor with program and data protection function under multi-task environment 失效
标题翻译：具有多任务环境下的程序和数据保护功能的微处理器
公开(公告)号：US07673152B2
公开(公告)日：2010-03-02
申请号：US11335601
申请日：2006-01-20
申请人： Kenji Shirakawa , Mikio Hashimoto , Keiichi Teramoto , Satoshi Ozaki , Kensaku Fujimoto
发明人： Kenji Shirakawa , Mikio Hashimoto , Keiichi Teramoto , Satoshi Ozaki , Kensaku Fujimoto
IPC分类号： G06F17/30
CPC分类号： G06F21/71 , G06F2221/2105
摘要： In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system.
摘要翻译：在微处理器中，用于解密程序的程序密钥和用于加密/解密由程序处理的数据的数据密钥被处理为在微处理器内的密码不可分的对，使得微处理器可以保护实际执行程序的进程，而不需要操作系统的干预，并且可以不仅从其他用户程序而且从操作系统隐藏程序的秘密信息。

9. 发明授权

US07657760B2 Method for sharing encrypted data region among processes in tamper resistant processor 失效
标题翻译：在防篡改处理器的进程之间共享加密数据区域的方法
公开(公告)号：US07657760B2
公开(公告)日：2010-02-02
申请号：US11538225
申请日：2006-10-03
申请人： Keiichi Teramoto , Mikio Hashimoto , Kenji Shirakawa , Satoshi Ozaki , Kensaku Fujimoto
发明人： Keiichi Teramoto , Mikio Hashimoto , Kenji Shirakawa , Satoshi Ozaki , Kensaku Fujimoto
IPC分类号： G06F12/14 , H04L9/08
CPC分类号： G06F12/1466 , G06F12/1408 , G06F21/75 , G06F2221/2115
摘要： In the method for sharing encrypted data region among two or more processes on a tamper resistant processor, one process creates the encrypted data region to be shared according to the common key generated as a result of the safe key exchange, and the other process maps that region to its own address space or process space. The address information of the shared encrypted data region and the common key of each process are set in relation in the encrypted attribute register inside the tamper resistant processor, so that it is possible to share the encrypted data region safely.
摘要翻译：在用于在防篡改处理器上的两个或多个进程之间共享加密数据区域的方法中，一个进程根据作为安全密钥交换的结果产生的公共密钥创建要共享的加密数据区域，而另一个进程将区域到其自己的地址空间或进程空间。共享加密数据区域的地址信息和每个进程的公共密钥在防篡改处理器内的加密属性寄存器中被设置，使得可以安全地共享加密的数据区域。

10. 发明申请

US20090006864A1 MICROPROCESSOR WITH IMPROVED TASK MANAGEMENT AND TABLE MANAGEMENT MECHANISM 失效
标题翻译：具有改进的任务管理和表管理机制的微处理器
公开(公告)号：US20090006864A1
公开(公告)日：2009-01-01
申请号：US12118291
申请日：2008-05-09
申请人： Mikio Hashimoto , Kensaku Fujimoto , Kenji Shirakawa
发明人： Mikio Hashimoto , Kensaku Fujimoto , Kenji Shirakawa
IPC分类号： H04L9/32
CPC分类号： G06F21/72 , G06F21/123 , G06F21/126 , G06F2221/2107
摘要： A tamper resistant microprocessor has a task state table for assigning a task identifier to a task that can take a plurality of states, and storing a state of the task in correspondence to the task identifier; a task register for storing the task identifier of a currently executed task; an interface for reading a program stored in a form encrypted by using a program key at an external memory, in units of cache lines, when a request for the task is made; an encryption processing unit for generating decryption keys that are different for different cache lines, according to the program key, and decrypt a content read by the interface; a cache memory formed by a plurality of cache lines each having a tag, for storing the task identifier corresponding to a decryption key used in decrypting each cache line in the tag of each cache line; and an access check unit for comparing the task identifier stored in the tag of each cache line with a value of the task register, and discarding a content of each cache line when the task identifier in the tag and the value of the task register do not coincide.
摘要翻译：防篡改微处理器具有任务状态表，用于将任务标识符分配给可以采取多种状态的任务，并且存储对应于任务标识符的任务状态; 用于存储当前执行的任务的任务标识符的任务寄存器; 当进行任务请求时，以高速缓存线为单位读取以外部存储器上的程序密钥加密的形式存储的程序的接口; 加密处理单元，用于根据程序密钥生成不同的高速缓存行不同的解密密钥，并解密由界面读取的内容; 由多个高速缓存行形成的高速缓冲存储器，每个高速缓存行均具有标签，用于存储对应于在每个高速缓存行的标签中对每个高速缓存行进行解密中使用的解密密钥相对应的任务标识符; 以及访问检查单元，用于将存储在每个高速缓存行的标签中的任务标识符与任务寄存器的值进行比较，并且当标签中的任务标识符和任务寄存器的值不为止时，丢弃每个高速缓存行的内容重合。

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