Method and system for depositing private key used in RSA cryptosystem
    3.
    发明授权
    Method and system for depositing private key used in RSA cryptosystem 失效
    在RSA密码系统中使用的存放私钥的方法和系统

    公开(公告)号:US6072876A

    公开(公告)日:2000-06-06

    申请号:US900978

    申请日:1997-07-25

    IPC分类号: H04L9/30

    摘要: A scheme for depositing a private key used in the RSA cryptosystem which is capable of maintaining the private key more safely, without requiring a user to always carry around a storage medium. In this scheme, a private key of a user is divided into a first partial private key and a second partial private key at a user's entity, where the first partial private key is set to be maintained at the user's entity, while the second partial private key is deposited from the user's entity to the other entity. Then, the second partial private key is delivered from the other entity to the user's entity in response to a request from the user's entity, and the first partial private key maintained at the user's entity and the second partial private key delivered from the other entity are composed so as to obtain the private key to be used in a processing according to the RSA cryptosystem at the user's entity. This scheme can be generalized to a case of dividing the private key into a plurality of partial private keys.

    摘要翻译: 用于存储在RSA密码系统中使用的私钥的方案,其能够更安全地维护私钥,而不需要用户始终携带存储介质。 在该方案中,用户的私钥在用户的实体被划分为第一部分专用密钥和第二部分专用密钥,其中第一部分专用密钥设置为维持在用户的实体,而第二部分专用密钥 密钥从用户实体存储到另一实体。 然后,响应于来自用户实体的请求,第二部分私钥从另一个实体传送到用户的实体,并且保持在用户实体的第一部分私钥和从另一个实体传送的第二部分私钥是 组合以获得在用户实体的根据RSA密码系统的处理中使用的私钥。 该方案可以推广到将私钥划分成多个部分私钥的情况。

    Automatic thin-film measuring apparatus
    4.
    发明授权
    Automatic thin-film measuring apparatus 失效
    自动薄膜测量仪

    公开(公告)号:US5321634A

    公开(公告)日:1994-06-14

    申请号:US850026

    申请日:1992-03-12

    CPC分类号: G01G9/00 Y10S414/135

    摘要: In an automatic thin-film measuring apparatus, the zero point of a precision balance is corrected according to directions from a data processing unit before and after the weight of a semiconductor substrate is measured, the surface temperature of the semiconductor substrate laid on a pan of the precision balance is measured, and the weight of the semiconductor substrate is measured when the surface temperature reaches a predetermined value. Furthermore, the cycle of variations in the zero point is found when the zero point is corrected, and the weight measurement of the semiconductor substrate is conducted during an integer multiple of the change cycle. Therefore, it is possible to enhance the precision of the weight measurement and its reproducibility and to shorten the measurement time without being influenced by low-frequency vibrations.

    摘要翻译: 在自动薄膜测量装置中,根据来自数据处理单元的方向,在测量半导体衬底的重量之前和之后校正精度平衡的零点,将半导体衬底的表面温度放置在盘 测量精度平衡,并且当表面温度达到预定值时测量半导体衬底的重量。 此外,当零点被校正时,发现零点变化的周期,并且半导体衬底的重量测量在变化周期的整数倍期间进行。 因此,可以提高重量测量的精度及其重现性,并且缩短测量时间而不受低频振动的影响。