公开(公告)号：US20080219435A1

公开(公告)日：2008-09-11

申请号：US12073715

申请日：2008-03-07

申请人： Tetsuhiro Kodama ,  Jun Yajima ,  Arata Noguchi ,  Ken Sakuma

发明人： Tetsuhiro Kodama ,  Jun Yajima ,  Arata Noguchi ,  Ken Sakuma

IPC分类号： H04L9/28

CPC分类号： H04L9/0643 ,  H04L9/3242 ,  H04L2209/20 ,  H04L2209/60

摘要： An information transmitting apparatus encrypts and transmits transmit data that includes contents for which transmission instruction has been received, an authentication code, and padding. The information transmitting apparatus includes a padding calculating unit that calculates a size of the padding based on an encrypting algorithm, a size of the authentication code and a size of the contents; a transmit-data size calculating unit that calculates a size of the transmit data from the size of the padding, the size of the authentication code, and the size of the contents; a generating unit that generates, using the size of the transmit data, a header that indicates a type of the transmit data and the size of the transmit data; an encrypting unit that encrypts the transmit data; and a transmitting unit that transmits the header and the encrypted transmit data.

摘要翻译： 信息发送装置加密并发送包括已经接收到发送指令的内容的发送数据，认证码和填充。 信息发送装置包括填补计算单元，其基于加密算法计算填充大小，认证码的大小和内容的大小; 发送数据大小计算单元，从填充的大小，认证码的大小和内容的大小来计算发送数据的大小; 生成单元，其使用所述发送数据的大小生成指示所述发送数据的类型和所述发送数据的大小的报头; 加密单元，用于加密发送数据; 以及发送单元，其发送报头和加密的发送数据。

公开(公告)号：US08571206B2

公开(公告)日：2013-10-29

申请号：US12073715

申请日：2008-03-07

申请人： Tetsuhiro Kodama ,  Jun Yajima ,  Arata Noguchi ,  Ken Sakuma

发明人： Tetsuhiro Kodama ,  Jun Yajima ,  Arata Noguchi ,  Ken Sakuma

IPC分类号： H04L29/06

CPC分类号： H04L9/0643 ,  H04L9/3242 ,  H04L2209/20 ,  H04L2209/60

摘要： An information transmitting apparatus encrypts and transmits transmit data that includes contents for which transmission instruction has been received, an authentication code, and padding. The information transmitting apparatus includes a padding calculating unit that calculates a size of the padding based on an encrypting algorithm, a size of the authentication code and a size of the contents; a transmit-data size calculating unit that calculates a size of the transmit data from the size of the padding, the size of the authentication code, and the size of the contents; a generating unit that generates, using the size of the transmit data, a header that indicates a type of the transmit data and the size of the transmit data; an encrypting unit that encrypts the transmit data; and a transmitting unit that transmits the header and the encrypted transmit data.

摘要翻译： 信息发送装置加密并发送包括已经接收到发送指令的内容的发送数据，认证码和填充。 信息发送装置包括填补计算单元，其基于加密算法计算填充大小，认证码的大小和内容的大小; 发送数据大小计算单元，从填充的大小，认证码的大小和内容的大小来计算发送数据的大小; 生成单元，其使用所述发送数据的大小生成指示所述发送数据的类型和所述发送数据的大小的报头; 加密单元，用于加密发送数据; 以及发送单元，其发送报头和加密的发送数据。

公开(公告)号：US06956951B2

公开(公告)日：2005-10-18

申请号：US09811551

申请日：2001-03-20

申请人： Takeshi Shimoyama ,  Koichi Ito ,  Masahiko Takenaka ,  Naoya Torii ,  Jun Yajima ,  Hitoshi Yanami ,  Kazuhiro Yokoyama

发明人： Takeshi Shimoyama ,  Koichi Ito ,  Masahiko Takenaka ,  Naoya Torii ,  Jun Yajima ,  Hitoshi Yanami ,  Kazuhiro Yokoyama

IPC分类号： H04L9/06 ,  H04L9/00

CPC分类号： H04L9/0625 ,  H04L2209/12

摘要： Intermediate data ai, bi, ci, and di are prepared by an intermediate data preparing equipment 4 from a cryptographic key through a nonlinear type function operation and the like, an extended key preparing equipment 5 selects a [Xr], b [Yr], c [Zr], and d [Wr] corresponding to the number of stages r from the intermediate data, and rearranges the data as well as conducts that of bit operation to prepare extended keys, whereby an extended key preparing apparatus by which an extended key required in the case where common key cryptosystem is applied can be safely prepared at a high speed, a process for preparing such an extended key, and a recording medium used therefor are provided.

摘要翻译： 中间数据准备设备（中间数据准备设备）通过中间数据准备设备来制备中间数据，中间数据和/ 通过非线性类型函数操作等从加密密钥4输出的数据，扩展密钥准备设备5选择[X，R]，b [Y] Z＆lt; r＆gt;]和对应于来自中间数据的级数r的d [W SUB]，并且重新排列数据，并且进行位操作以进行准备 扩展密钥，从而可以高速安全地准备应用公共密钥密码系统所需的扩展密钥的扩展密钥准备装置，用于制备这样的扩展密钥的处理及其使用的记录介质 。