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6 条记录 (耗时 0.042 秒)

    Encrypting system of data
    1.
    发明授权
    Encrypting system of data 失效
    加密数据系统

    公开(公告)号：US4969190A

    公开(公告)日：1990-11-06

    申请号：US336796

    申请日：1989-04-12

    申请人： Kazuo Takaragi ,  Fusao Nakagawa ,  Yasuhiko Nagai ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Fusao Nakagawa ,  Yasuhiko Nagai ,  Ryoichi Sasaki

    IPC分类号： G09C1/00 ,  H04L9/06 ,  H04L9/26 ,  H04L9/28 ,  H04L9/30

    CPC分类号： H04L9/0637

    摘要： A data encrypting system according to the CBC system involves a limitation in a range of a numerical value which expresses data (smaller than a predetermined integer N). The encrypting system has an encrypting apparatus including a block encrypting section for receiving data, which is expressed by an integer value X smaller than a predetermined integer value N, for executing a data conversionC=enc (X)where 0.ltoreq.C.ltoreq.N-1 using an RSA algorithm, and for outputting C; and an arithmetic operating section connected to receive data, as one input, which is expressed by an integer value M smaller than the integer value N, and the output C of the block encrypting section as the other input, for performing an arithmetic operation for both of the inputs so that a resultant arithmetic value is smaller than the integer value N, and for outputting the arithmetic value as an input of the block encrypting section. Further, a decoding apparatus has a block decoding section for receiving data which is expressed by an integer value C smaller than the integer value N, for executing an inverse conversionY=dec (C)of the encrypting for the input signal by using the RSA algorithm; and a modulo subtracting section for subtracing the input data C from the output Y of the block decoding section and for outputting a remainder M'M'=Y-C (mod N)which is derived by dividing a resultant subtracted value by the integer value N.

    摘要翻译： 根据CBC系统的数据加密系统涉及在表示数据（小于预定整数N）的数值范围内的限制。 加密系统具有加密装置，包括用于接收数据的块加密部分，该数据加密部分由小于预定整数值N的整数值X表示，用于执行数据转换C = enc（X），其中0 < / = N-1使用RSA算法，并输出C; 以及算术运算部，连接成作为一个输入，以小于整数值N的整数值M表示的数据和作为另一输入的块加密部的输出C，以进行两者的算术运算 的输入，使得所得到的算术值小于整数值N，并且用于输出算术值作为块加密部分的输入。 此外，解码装置具有块解码部分，用于接收由小于整数值N的整数值C表示的数据，用于通过使用RSA执行用于输入信号的加密的逆变换Y = dec（C） 算法; 以及用于从块解码部分的输出Y对输入数据C进行子跟踪的模减减部分，并且用于输出通过将合成的减法值除以整数值N而导出的余数M'M'= Y-C（mod N）。

    Encipher method and decipher method
    2.
    发明授权
    Encipher method and decipher method 失效
    ENCIPHER方法和DECIPHER方法

    公开(公告)号：US5103479A

    公开(公告)日：1992-04-07

    申请号：US618892

    申请日：1990-11-27

    申请人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    IPC分类号： G09C1/00 ,  H04L9/06

    CPC分类号： H04L9/0625

    摘要： There are provided an encipher method of enciphering message data made by a microcomputer or the like at a high speed by using encipher keys which have previously been stored in a smart card or the like and a decipher method of deciphering the ciphertext made by the encipher method at a high speed by using the encipher keys. The encipher method and the decipher method are suitable for, particularly, a 32-bit microcomputer and include a process expressed by the function Rot.sub.2 i(x) (i=2, 3, 4) in each process. Rot.sub.2 i(x) is the process to circular shift a data train x of 32 bits to the left or right by 2.sup.i bits (i=2, 3, 4).

    Encipher method and decipher method
    3.
    发明授权
    Encipher method and decipher method 失效
    加密方法和解密方法

    公开(公告)号：US4982429A

    公开(公告)日：1991-01-01

    申请号：US343808

    申请日：1989-04-27

    申请人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    IPC分类号： G09C1/00 ,  H04L9/06

    CPC分类号： H04L9/0625

    摘要： There are provided an encipher method of enciphering message data made by a microcomputer or the like at a high speed by using encipher keys which have previously been stored in a smart card or the like and a decipher method of deciphering the ciphertext made by the encipher method at a high speed by using the encipher keys. The encipher method and the decipher method are suitable for, particularly, a 32-bit microcomputer and include a process expressed by the function Rot.sub.2 i(x) (i=2, 3, 4) in each process. Rot.sub.2 i(x) is the process to circular shift a data train x of 32 bits to the left or right by 2.sup.i bits (i=2, 3, 4).

    摘要翻译： 提供了一种通过使用先前已经存储在智能卡等中的加密密钥来高速地加密由微计算机等进行的消息数据的加密方法以及解密由加密方法制成的密文的解密方法 通过使用加密密钥高速。 加密方法和解密方法特别适用于32位微计算机，并且包括在每个处理中由函数Rot2i（x）（i = 2,3,4）表示的处理。 Rot2i（x）是将32位的数据序列x向左或向右循环移位2i位（i = 2,3,4）的过程。

    Fuel cell system, method of stopping operation of the fuel cell system, and method of starting operation of the fuel cell system
    5.
    发明授权
    Fuel cell system, method of stopping operation of the fuel cell system, and method of starting operation of the fuel cell system 有权
    燃料电池系统，燃料电池系统的停止运转方法以及燃料电池系统的起动运转方法

    公开(公告)号：US08557459B2

    公开(公告)日：2013-10-15

    申请号：US12343078

    申请日：2008-12-23

    申请人： Takeshi Matsubara ,  Takao Fukumizu ,  Masahiro Mohri ,  Ryugo Suzuki ,  Hiromichi Yoshida ,  Fusao Nakagawa

    发明人： Takeshi Matsubara ,  Takao Fukumizu ,  Masahiro Mohri ,  Ryugo Suzuki ,  Hiromichi Yoshida ,  Fusao Nakagawa

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04238 ,  H01M8/04231 ,  H01M2008/1095

    摘要： A fuel cell system includes a fuel cell stack, an oxygen-containing gas supply apparatus, a fuel gas supply apparatus, a pressure reduction apparatus, and a dilution apparatus. The oxygen-containing gas supply apparatus supplies an oxygen-containing gas to the fuel cell stack. The oxygen-containing gas supply apparatus is capable of supplying the air to the fuel gas flow field at the time of stopping operation of the fuel cell system. The fuel gas supply apparatus supplies a fuel gas to the fuel cell stack. The pressure reduction apparatus suctions gases in the oxygen-containing gas flow field and the fuel gas flow field. The dilution apparatus dilutes the fuel gas suctioned by the pressure reduction apparatus using the air.

    摘要翻译： 燃料电池系统包括燃料电池堆，含氧气体供应装置，燃料气体供应装置，减压装置和稀释装置。 含氧气体供给装置向燃料电池堆供给含氧气体。 含氧气体供给装置能够在燃料电池系统的停止运转时向燃料气体流场供给空气。 燃料气体供给装置向燃料电池堆供给燃料气体。 减压装置吸入含氧气体流场和燃料气体流场中的气体。 稀释装置利用空气稀释由减压装置抽吸的燃料气体。