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    • 3. 发明申请
    • ENCRYPTION DEVICE
    • 加密设备
    • US20120069998A1
    • 2012-03-22
    • US13192122
    • 2011-07-27
    • Tsukasa ENDOHideo ShimizuYuichi KomanoHanae IkedaAtsushi Shimbo
    • Tsukasa ENDOHideo ShimizuYuichi KomanoHanae IkedaAtsushi Shimbo
    • H04L9/00
    • H04L9/003H04L9/0631H04L2209/046H04L2209/24
    • According to one embodiment, in an encryption device, a segmentation unit segments masked plain data into pieces of first segmented data. A first processing unit generates pieces of second segmented data from the pieces of first segmented data. A nonlinear transform unit generates pieces of third segmented data transformed from the pieces of second segmented data. A data integration unit integrates fourth segmented data to generate masked encrypted data. An unmask processing unit generates encrypted data from the masked encrypted data. The exclusive OR of the pieces of second segmented data matches the exclusive OR of input data, subjected to nonlinear transform processing and calculated from the plain data, and the first mask. The exclusive OR of the pieces of third segmented data matches the exclusive OR of transform data, obtained when the nonlinear transform processing is performed on the input data, and the second mask.
    • 根据一个实施例,在加密设备中,分割单元将屏蔽的普通数据分割成多个第一分段数据。 第一处理单元从第一分段数据生成第二分段数据。 非线性变换单元生成从第二分割数据变换的第三分段数据。 数据集成单元集成第四分段数据以生成被掩蔽的加密数据。 解密处理单元从掩蔽的加密数据生成加密数据。 第二分段数据的异或与进行非线性变换处理并从普通数据计算的输入数据的异或与第一掩码相匹配。 第三分段数据的异或与对输入数据执行非线性变换处理时获得的变换数据的异或与第二掩码相匹配。
    • 4. 发明授权
    • Encryption device
    • 加密设备
    • US08538017B2
    • 2013-09-17
    • US13192122
    • 2011-07-27
    • Tsukasa EndoHideo ShimizuYuichi KomanoHanae IkedaAtsushi Shimbo
    • Tsukasa EndoHideo ShimizuYuichi KomanoHanae IkedaAtsushi Shimbo
    • H04L9/00
    • H04L9/003H04L9/0631H04L2209/046H04L2209/24
    • According to one embodiment, in an encryption device, a segmentation unit segments masked plain data into pieces of first segmented data. A first processing unit generates pieces of second segmented data from the pieces of first segmented data. A nonlinear transform unit generates pieces of third segmented data transformed from the pieces of second segmented data. A data integration unit integrates fourth segmented data to generate masked encrypted data. An unmask processing unit generates encrypted data from the masked encrypted data. The exclusive OR of the pieces of second segmented data matches the exclusive OR of input data, subjected to nonlinear transform processing and calculated from the plain data, and the first mask. The exclusive OR of the pieces of third segmented data matches the exclusive OR of transform data, obtained when the nonlinear transform processing is performed on the input data, and the second mask.
    • 根据一个实施例,在加密设备中,分割单元将屏蔽的普通数据分割成多个第一分段数据。 第一处理单元从第一分段数据生成第二分段数据。 非线性变换单元生成从第二分割数据变换的第三分段数据。 数据集成单元集成第四分段数据以生成被掩蔽的加密数据。 解密处理单元从掩蔽的加密数据生成加密数据。 第二分段数据的异或与进行非线性变换处理并从普通数据计算的输入数据的异或与第一掩码相匹配。 第三分段数据的异或与对输入数据执行非线性变换处理时获得的变换数据的异或与第二掩码相匹配。
    • 5. 发明申请
    • ENCRYPTION DEVICE
    • 加密设备
    • US20120307997A1
    • 2012-12-06
    • US13585391
    • 2012-08-14
    • Tsukasa EndoYuichi KomanoKoichi FujisakiHideo ShimizuHanae IkedaAtsushi Shimbo
    • Tsukasa EndoYuichi KomanoKoichi FujisakiHideo ShimizuHanae IkedaAtsushi Shimbo
    • H04L9/28
    • H04L9/0631H04L9/003
    • According to an embodiment, an encryption device performs encryption processing using an encryption key and calculates encrypted data from plain data. The encryption device includes: a register; an input unit configured to receive plain data; a first partial encryption unit configured to calculate first intermediate data from the plain data; a second partial encryption unit configured to calculate (i+1)-th intermediate data based on i-th intermediate data and the encryption key; a first transform unit configured to: transform j-th intermediate data into j-th transformed data; and store the j-th transformed data in the register; and a second transform unit configured to transform the j-th transformed data into the j-th intermediate data; a third partial encryption unit configured to calculate encrypted data from the N-th intermediate data. The second partial encryption unit is configured to repeat processing to calculate (j+1)-th intermediate data while j is equal to from 1 to N−1.
    • 根据实施例,加密装置使用加密密钥进行加密处理,并从普通数据计算加密数据。 加密装置包括:寄存器; 输入单元,被配置为接收普通数据; 第一部分加密单元,被配置为从所述普通数据计算第一中间数据; 第二部分加密单元,被配置为基于第i个中间数据和加密密钥计算第(i + 1)个中间数据; 第一变换单元,被配置为:将第j个中间数据变换为第j变换数据; 并将第j个变换数据存储在寄存器中; 以及第二变换单元,被配置为将第j个变换后的数据变换为第j个中间数据; 第三部分加密单元,被配置为从第N个中间数据计算加密数据。 第二部分加密单元被配置为重复处理以计算(j + 1)中间数据,而j等于从1到N-1。
    • 6. 发明授权
    • Encryption/decryption apparatus
    • 加密/解密装置
    • US08023643B2
    • 2011-09-20
    • US11511401
    • 2006-08-29
    • Koichi FujisakiHideo ShimizuAtsushi Shimbo
    • Koichi FujisakiHideo ShimizuAtsushi Shimbo
    • H04L9/22
    • H04L9/003H04L2209/046H04L2209/08H04L2209/12
    • A first Exclusive OR circuit operates an Exclusive OR between input data and a predetermined random number. An operation circuit performs one operation of encryption and decryption of output data from the first Exclusive OR circuit. A data register circuit, which has a plurality of data hold units, holds data from the operation circuit in one data hold unit of the plurality of data hold units in response to a selection signal, and supplies the data from the one data hold unit to the operation circuit. A second Exclusive OR circuit performs an Exclusive OR between output data from the data register circuit and the random number. The operation circuit recursively performs the one operation of the data from the data register circuit and outputs next data to the data register circuit.
    • 第一异或电路在输入数据和预定的随机数之间操作异或。 操作电路对来自第一异或电路的输出数据进行加密和解密的一个操作。 具有多个数据保持单元的数据寄存器电路响应于选择信号在多个数据保持单元的一个数据保持单元中保存来自运算电路的数据,并将来自一个数据保持单元的数据提供给 操作电路。 第二个异或电路在数据寄存器电路的输出数据和随机数之间执行异或运算。 运算电路从数据寄存器电路递归地执行数据的一次操作,并将下一个数据输出到数据寄存器电路。
    • 8. 发明申请
    • Encryption/decryption appararus
    • 加密/解密appararus
    • US20070071235A1
    • 2007-03-29
    • US11511401
    • 2006-08-29
    • Koichi FujisakiHideo ShimizuAtsushi Shimbo
    • Koichi FujisakiHideo ShimizuAtsushi Shimbo
    • H04L9/28
    • H04L9/003H04L2209/046H04L2209/08H04L2209/12
    • A first Exclusive OR circuit operates an Exclusive OR between input data and a predetermined random number. An operation circuit performs one operation of encryption and decryption of output data from the first Exclusive OR circuit. A data register circuit, which has a plurality of data hold units, holds data from the operation circuit in one data hold unit of the plurality of data hold units in response to a selection signal, and supplies the data from the one data hold unit to the operation circuit. A second Exclusive OR circuit performs an Exclusive OR between output data from the data register circuit and the random number. The operation circuit recursively performs the one operation of the data from the data register circuit and outputs next data to the data register circuit.
    • 第一异或电路在输入数据和预定的随机数之间操作异或。 操作电路对来自第一异或电路的输出数据进行加密和解密的一个操作。 具有多个数据保持单元的数据寄存器电路响应于选择信号在多个数据保持单元的一个数据保持单元中保存来自运算电路的数据,并将来自一个数据保持单元的数据提供给 操作电路。 第二个异或电路在数据寄存器电路的输出数据和随机数之间执行异或运算。 运算电路从数据寄存器电路递归地执行数据的一次操作,并将下一个数据输出到数据寄存器电路。
    • 9. 发明授权
    • Encryption device
    • 加密设备
    • US09288040B2
    • 2016-03-15
    • US13585391
    • 2012-08-14
    • Tsukasa EndoYuichi KomanoKoichi FujisakiHideo ShimizuHanae IkedaAtsushi Shimbo
    • Tsukasa EndoYuichi KomanoKoichi FujisakiHideo ShimizuHanae IkedaAtsushi Shimbo
    • H04L9/06H04L9/00
    • H04L9/0631H04L9/003
    • According to an embodiment, an encryption device performs encryption processing using an encryption key and calculates encrypted data from plain data. The encryption device includes: a register; an input unit configured to receive plain data; a first partial encryption unit configured to calculate first intermediate data from the plain data; a second partial encryption unit configured to calculate (i+1)-th intermediate data based on i-th intermediate data and the encryption key; a first transform unit configured to: transform j-th intermediate data into j-th transformed data; and store the j-th transformed data in the register; and a second transform unit configured to transform the j-th transformed data into the j-th intermediate data; a third partial encryption unit configured to calculate encrypted data from the N-th intermediate data. The second partial encryption unit is configured to repeat processing to calculate (j+1)-th intermediate data while j is equal to from 1 to N−1.
    • 根据实施例,加密装置使用加密密钥进行加密处理,并从普通数据计算加密数据。 加密装置包括:寄存器; 输入单元,被配置为接收普通数据; 第一部分加密单元,被配置为从所述普通数据计算第一中间数据; 第二部分加密单元,被配置为基于第i个中间数据和加密密钥计算第(i + 1)个中间数据; 第一变换单元,被配置为:将第j个中间数据变换为第j变换数据; 并将第j个变换数据存储在寄存器中; 以及第二变换单元,被配置为将第j个变换后的数据变换为第j个中间数据; 第三部分加密单元,被配置为从第N个中间数据计算加密数据。 第二部分加密单元被配置为重复处理以计算(j + 1)中间数据,而j等于从1到N-1。