MICROPROCESSOR PROTECTED AGAINST MEMORY DUMP
    1.
    发明申请
    MICROPROCESSOR PROTECTED AGAINST MEMORY DUMP 审中-公开
    微处理器防止内存丢失

    公开(公告)号:US20130055025A1

    公开(公告)日:2013-02-28

    申请号:US13591656

    申请日:2012-08-22

    IPC分类号: G06F11/28

    CPC分类号: G06F21/554 G06F21/78

    摘要: A microprocessor including a memory and a central processing unit configured to sign a binary word written in the memory, and during the reading of a binary word in the memory, verify the signature of the binary word and, if the signature is invalid, launching a protective action of the memory. According to the invention, the central processing unit is configured to execute a write instruction of a binary word accompanied by an invalid signature in a memory zone, so that a later read of the memory zone by the central processing unit launches the protective action.

    摘要翻译: 一种包括存储器和中央处理单元的微处理器,被配置为对存储器中写入的二进制字进行签名,并且在读取存储器中的二进制字时,验证二进制字的签名,并且如果签名无效,则启动一个 记忆的保护动作。 根据本发明,中央处理单元被配置为在存储器区域中执行伴有无效签名的二进制字的写入指令,使得由中央处理单元稍后读取存储器区域启动保护动作。

    COUNTERMEASURE METHOD AND DEVICES FOR ASYMMETRIC ENCRYPTION
    3.
    发明申请
    COUNTERMEASURE METHOD AND DEVICES FOR ASYMMETRIC ENCRYPTION 审中-公开
    非对称加密的相对测量方法和设备

    公开(公告)号:US20110274271A1

    公开(公告)日:2011-11-10

    申请号:US12840347

    申请日:2010-07-21

    IPC分类号: H04L9/30

    摘要: A countermeasure method in an electronic component implementing an asymmetric private key encryption algorithm includes generating a protection parameter, calculating, using a primitive, an intermediate data from the protection parameter, dividing the binary representation of the private key into several binary blocks, transforming each binary block using the protection parameter and, for each transformed binary block, performing an intermediate calculation using the primitive, and calculating an output data by combining the intermediate data with the intermediate calculations.

    摘要翻译: 实现非对称私钥加密算法的电子部件中的对策方法包括生成保护参数,使用原语从保护参数计算中间数据,将私钥的二进制表示分为几个二进制块,将每个二进制 使用保护参数的块,并且对于每个变换的二进制块,使用该原语执行中间计算,并且通过将中间数据与中间计算组合来计算输出数据。

    SECURE INTEGRATED CIRCUIT COMPRISING MEANS FOR DISCLOSING COUNTERPART MASK VALUES
    4.
    发明申请
    SECURE INTEGRATED CIRCUIT COMPRISING MEANS FOR DISCLOSING COUNTERPART MASK VALUES 审中-公开
    安全集成电路包含用于公布计数器面板值的方法

    公开(公告)号:US20100287386A1

    公开(公告)日:2010-11-11

    申请号:US12775678

    申请日:2010-05-07

    IPC分类号: G06F12/14

    摘要: An integrated circuit includes a communication interface circuit, a cryptographic algorithm, a countermeasure configured to protect the cryptographic algorithm against side-channel attacks, and a mask generator configured to provide the countermeasure with mask values. The integrated circuit is configured to execute a specific command requiring the disclosure of mask values used by the countermeasures to protect the cryptographic algorithm during a cryptographic session, and, in response to such a command, to send the mask values through the communication interface circuit.

    摘要翻译: 集成电路包括通信接口电路,密码算法,配置为保护加密算法免受侧信道攻击的对策以及被配置为向对方提供掩码值的掩码发生器。 集成电路被配置为执行特定命令,要求公开由对策使用的掩码值,以在密码会话期间保护密码算法,并且响应于这样的命令,通过通信接口电路发送掩码值。