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5 条记录 (耗时 0.018 秒)

    Cryptographic method and cryptographic device
    1.
    发明授权
    Cryptographic method and cryptographic device 有权
    加密方法和加密设备

    公开(公告)号：US07227947B2

    公开(公告)日：2007-06-05

    申请号：US10275947

    申请日：2001-05-15

    申请人： Martin Seysen

    发明人： Martin Seysen

    IPC分类号： H04L9/00

    CPC分类号： G06F7/723 ,  G06F2207/7271

    摘要： The invention relates to a cryptographic method with at least one computing step containing a modular exponentiation E according to E=xd(mod p·q), with a first prime factor p, a second prime factor q, an exponent d and a number x, whereby the modular exponentiation E is calculated according to the Chinese Remainder Theorem.

    摘要翻译： 本发明涉及一种具有至少一个计算步骤的加密方法，该计算步骤包含根据E = x D（mod pq）的模幂运算E，其中第一素因子p，第二素因子q， 指数d和数x，从而根据中国剩余定理计算模幂数E。

    Cryptographic equipment
    2.
    发明授权
    Cryptographic equipment 失效
    加密设备

    公开(公告)号：US5887064A

    公开(公告)日：1999-03-23

    申请号：US246133

    申请日：1988-09-08

    申请人： Martin Seysen

    发明人： Martin Seysen

    IPC分类号： G09C5/00 ,  H04L9/00 ,  G06K5/00 ,  H04K1/00

    CPC分类号： G09C1/10 ,  H04L9/0897 ,  H04L9/3234

    摘要： Cryptographic equipment is used with a number of user identification cards which are distributed to various authorized users, each user identification card being a non-volatile memory which can be overwritten in which a user-associated external crypto-ignition key is stored. Insertion of the user identification card in the cryptographic equipment releases the cryptovariable code by cooperation with an internal crypto-ignition key stored internal in a sub-memory of the cryptographic equipment for every authorized user. The cryptovariable required for setting and controlling the cryptosequence generator is stored in encoded form in another sub-memory of the variable memory, and is capable of being decoded with the cryptovariable code.

    摘要翻译： 加密设备与分配给各种授权用户的多个用户识别卡一起使用，每个用户识别卡是可被覆盖的非易失性存储器，其中存储用户相关的外部加密点火钥匙。 在密码设备中插入用户识别卡通过与每个授权用户在密码设备的子存储器内部存储的内部加密点火密钥协作释放密码变换码。 用于设置和控制加密序列生成器所需的加密变量以编码形式存储在可变存储器的另一子存储器中，并且能够用密码变换代码进行解码。

    Method for secure distribution of data
    5.
    发明授权
    Method for secure distribution of data 有权
    数据安全分发方法

    公开(公告)号：US06405923B1

    公开(公告)日：2002-06-18

    申请号：US09673657

    申请日：2001-02-26

    申请人： Martin Seysen

    发明人： Martin Seysen

    IPC分类号： G06K708

    CPC分类号： H04L9/3249 ,  H04L9/302 ,  H04L9/3234

    摘要： A method for secure distribution of data or programs, the transmitted data being provided with an electronic signature. The unit receiving the data or programs checks the electronic signature by executing a modular multiplication, thereby necessitating a multiplication and a division thereof. According to the invention, the unit receiving the data or program checks the signature by performing a modular multiplication according to the Montgomery method wherein an additional multiplication by a factor on the basis of base 2 and even exponents is performed.

    摘要翻译： 一种用于数据或程序的安全分发的方法，所发送的数据被提供有电子签名。 接收数据或程序的单元通过执行模乘来检查电子签名，从而需要乘法和除法。 根据本发明，接收数据或程序的单元通过根据蒙哥马利方法执行模乘法来检查签名，其中执行基于基数2和偶指数的因子的附加乘法。