公开(公告)号：US08654972B2

公开(公告)日：2014-02-18

申请号：US13068253

申请日：2011-05-06

申请人： Shinsaku Kiyomoto ,  Toshiaki Tanaka

发明人： Shinsaku Kiyomoto ,  Toshiaki Tanaka

IPC分类号： H04L9/26 ,  H04L9/34

CPC分类号： H04L9/0668

摘要： A stream encryption device generates a first pseudo random number sequence from key information, generates a second pseudo random number sequence according to clock control performed according to the first pseudo random number sequence, and subjects it to a nonlinear function calculation, thereby generating a key stream. The stream encryption device performs XOR operation with a plain text so as to create an encrypted text.

摘要翻译： 流加密装置从密钥信息生成第一伪随机数序列，根据第一伪随机数序列进行时钟控制，生成第二伪随机数序列，并进行非线性函数计算，生成密钥流 。 流加密设备使用纯文本执行XOR操作，以创建加密文本。

公开(公告)号：US20090316893A1

公开(公告)日：2009-12-24

申请号：US12300996

申请日：2007-05-15

申请人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata

发明人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata

IPC分类号： H04N7/167 ,  H04L9/08

CPC分类号： H04N7/17309 ,  H04N7/1675 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4622 ,  H04N21/4623 ,  H04N21/4782 ,  H04N2007/1739

摘要： A broadcast receiving apparatus comprises a broadcast receiving unit (1, 4˜13) for receiving a digital broadcast; a communication unit (1˜3) for performing two-way communication through a network; an operation unit 15 for performing an acquisition operation of a key for decrypting an encrypted broadcast program received by the broadcast receiving unit; and an address generating unit 16 for generating an address of an acquisition location of the key which is accessible with the communication unit, by using program arrangement information corresponding to the broadcast program based on the acquisition operation of a key by the operation unit.

摘要翻译： 广播接收装置包括用于接收数字广播的广播接收单元（1,4〜13）; 用于通过网络进行双向通信的通信单元（1〜3）; 操作单元15，用于执行用于解密由广播接收单元接收的加密广播节目的密钥的获取操作; 以及地址生成单元16，用于基于操作单元的键的获取操作，通过使用与广播节目对应的节目排列信息来生成可由通信单元访问的密钥的获取位置的地址。

公开(公告)号：US08532292B2

公开(公告)日：2013-09-10

申请号：US12300999

申请日：2007-05-15

申请人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata ,  Keigo Majima ,  Takeshi Kimura ,  Hideki Kokubun ,  Go Ohtake

发明人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata ,  Keigo Majima ,  Takeshi Kimura ,  Hideki Kokubun ,  Go Ohtake

IPC分类号： H04N7/167 ,  G06F21/00

CPC分类号： H04L9/065 ,  H04L2209/56 ,  H04L2209/601 ,  H04L2209/80 ,  H04N7/1675 ,  H04N21/41407 ,  H04N21/4405 ,  H04N21/63345

摘要： Provided is a system far receiving a initialization packet containing an initial vector for initializing stream encryption algorithm and an identifier of a key for decrypting an encrypted stream, initializing a decryption module, and decrypting the encrypted stream, wherein the system stores an identifier of a key which is needed to decrypt a next program in a initialization packet of a current program and informs a user of whether a desired key has been acquired or not at timing close to start time of the next program.

摘要翻译： 提供了一种远程接收包含用于初始化流加密算法的初始向量和用于解密加密流的密钥的标识符，初始化解密模块和解密加密流的初始化包的系统，其中系统存储密钥的标识符 需要解密当前节目的初始化包中的下一节目，并且在接下来节目的开始时刻的定时通知用户是否已经获取了所需的密钥。

公开(公告)号：US20110216901A1

公开(公告)日：2011-09-08

申请号：US13068253

申请日：2011-05-06

申请人： Shinsaku Kiyomoto ,  Toshiaki Tanaka

发明人： Shinsaku Kiyomoto ,  Toshiaki Tanaka

IPC分类号： H04L9/24

CPC分类号： H04L9/0668

摘要： A stream encryption device generates a first pseudo random number sequence from key information, generates a second pseudo random number sequence according to clock control performed according to the first pseudo random number sequence, and subjects it to a nonlinear function calculation, thereby generating a key stream. The stream encryption device performs XOR operation with a plain text so as to create an encrypted text.

摘要翻译： 流加密装置从密钥信息生成第一伪随机数序列，根据第一伪随机数序列进行时钟控制，生成第二伪随机数序列，并进行非线性函数计算，生成密钥流 。 流加密设备使用纯文本执行XOR操作，以创建加密文本。

公开(公告)号：US07978851B2

公开(公告)日：2011-07-12

申请号：US11880260

申请日：2007-07-20

申请人： Shinsaku Kiyomoto ,  Toshiaki Tanaka

发明人： Shinsaku Kiyomoto ,  Toshiaki Tanaka

IPC分类号： H04L9/26

CPC分类号： H04L9/0668

摘要： A stream encryption device generates a first pseudo random number sequence from key information, generates a second pseudo random number sequence according to clock control performed according to the first pseudo random number sequence, and subjects it to a nonlinear function calculation, thereby generating a key stream. The stream encryption device performs XOR operation with a plain text so as to create an encrypted text. The stream encryption device performs an encryption process in units of words by using a clock controller. It includes: a first pseudo random number generation means to generate a first pseudo random number sequence from key information; a second pseudo random number generation means to generate a second pseudo random number sequence based on clock control performed according to the first pseudo random number sequence; and, a keystream generation means to generate a keystream by applying a nonlinear function calculation to the second pseudo random number sequence.

摘要翻译： 流加密装置从密钥信息生成第一伪随机数序列，根据第一伪随机数序列进行时钟控制，生成第二伪随机数序列，并进行非线性函数计算，生成密钥流 。 流加密设备使用纯文本执行XOR操作，以创建加密文本。 流加密装置通过使用时钟控制器以字为单位执行加密处理。 它包括：第一伪随机数生成装置，用于从密钥信息生成第一伪随机数序列; 第二伪随机数生成装置，用于基于根据第一伪随机数序列执行的时钟控制产生第二伪随机数序列; 以及密钥流生成装置，用于通过对第二伪随机数序列应用非线性函数计算来生成密钥流。

公开(公告)号：US08578155B2

公开(公告)日：2013-11-05

申请号：US12300996

申请日：2007-05-15

申请人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata

发明人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata

IPC分类号： H04L29/06 ,  H04L9/32 ,  H04L9/00 ,  H04N7/167 ,  H04N7/16 ,  G06F17/30

CPC分类号： H04N7/17309 ,  H04N7/1675 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4622 ,  H04N21/4623 ,  H04N21/4782 ,  H04N2007/1739

摘要： A broadcast receiving apparatus comprises a broadcast receiving unit (1, 4˜13) for receiving a digital broadcast; a communication unit (1˜3) for performing two-way communication through a network; an operation unit 15 for performing an acquisition operation of a key for decrypting an encrypted broadcast program received by the broadcast receiving unit; and an address generating unit 16 for generating an address of an acquisition location of the key which is accessible with the communication unit, by using program arrangement information corresponding to the broadcast program based on the acquisition operation of a key by the operation unit.

摘要翻译： 广播接收装置包括用于接收数字广播的广播接收单元（1,4〜13）; 用于通过网络进行双向通信的通信单元（1〜3）; 操作单元15，用于执行用于解密由广播接收单元接收的加密广播节目的密钥的获取操作; 以及地址生成单元16，用于基于操作单元的键的获取操作，通过使用与广播节目对应的节目排列信息来生成可由通信单元访问的密钥的获取位置的地址。

公开(公告)号：US20100002876A1

公开(公告)日：2010-01-07

申请号：US12301022

申请日：2007-05-16

申请人： Shuuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata ,  Keigo Majima ,  Takeshi Kimura ,  Shunji Sunasaki ,  Kiyohiko Ishikawa ,  Hideki Kokubun ,  Koichi Ishikawa ,  Masaru Fukushima ,  Takeshi Yamane ,  Ryo Goto

发明人： Shuuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata ,  Keigo Majima ,  Takeshi Kimura ,  Shunji Sunasaki ,  Kiyohiko Ishikawa ,  Hideki Kokubun ,  Koichi Ishikawa ,  Masaru Fukushima ,  Takeshi Yamane ,  Ryo Goto

IPC分类号： H04L9/18 ,  H04L9/08

CPC分类号： H04L9/065 ,  H04L2209/12 ,  H04L2209/601 ,  H04N7/1675 ,  H04N21/4341 ,  H04N21/43853

摘要： In order to provide various service types to the users in a case of supplying the contents constituted from multiple resources via broadcast, the following apparatuses are provided. An encryption apparatus (100) encrypts the resources-to-be-encrypted of the contents, stores the encrypted resources in the packets and transmits the packets via broadcast. An encryption portion which encrypts each of contents constituted from multiple resources by applying a corresponding encryption key and generates and transmits packets that store encrypted data or non-encrypted data of the resources. A licensing apparatus (2) providing a license via communication network while the license includes both a license identifier which indicates a broadcast range in which the license is effective and the decryption key provided in correspondence with each of resources-to-be-encrypted. A decryption apparatus (300), by using the corresponding decryption key included in the license received via communications lines, decrypts the encrypted data of the packets received via broadcast.

摘要翻译： 为了在通过广播提供由多个资源构成的内容的情况下向用户提供各种服务类型，提供以下装置。 加密装置（100）对要加密的内容的资源进行加密，将加密的资源存储在分组中，并通过广播发送分组。 一种加密部分，其通过应用相应的加密密钥对由多个资源构成的每个内容进行加密，并生成并发送存储该资源的加密数据或非加密数据的分组。 许可装置（2）通过通信网络提供许可证，同时许可证包括指示许可证有效的广播范围的许可证标识符和与要被加密的资源中的每一个相对应地提供的解密密钥。 解密装置（300）通过使用通过通信线路接收到的许可证中包含的对应的解密密钥来解密通过广播接收到的分组的加密数据。

公开(公告)号：US08275124B2

公开(公告)日：2012-09-25

申请号：US12014471

申请日：2008-01-15

申请人： Jun Kurihara ,  Shinsaku Kiyomoto ,  Toshiaki Tanaka

发明人： Jun Kurihara ,  Shinsaku Kiyomoto ,  Toshiaki Tanaka

IPC分类号： H04L29/06

CPC分类号： H04L9/085

摘要： A threshold secret sharing apparatus, a threshold secret sharing scheme, a secret information recovery apparatus a secret information recovery method, and a program thereof are provided using XOR computation, thereby offering a general (k,n) threshold secret sharing scheme with high computation speed. Secret information K is divided into (np−1) divided pieces of secret information Kq (np is a prime number which is equal to or greater than a secret distribution number n). Furthermore, dummy secret information K0 is generated. Moreover, random numbers R, which are mutually independent are generated. Then, pieces of shares are created using exclusive-OR (XOR) operations based upon the dummy secret information K0, the divided piece of secret information Kq, and the random numbers R. The pieces of shares thus generated are concatenated so as to generate n shares Si, thereby providing a (k,n) threshold secret sharing scheme.

摘要翻译： 使用XOR计算提供阈值秘密共享装置，阈值秘密共享方案，秘密信息恢复装置，秘密信息恢复方法及其程序，从而提供具有高计算速度的通用（k，n）阈值秘密共享方案 。 秘密信息K被分成（np-1）个分割的秘密信息Kq（np是等于或大于秘密分配数n的质数）。 此外，生成伪秘密信息K0。 此外，生成相互独立的随机数R。 然后，使用基于伪秘密信息K0，分割的秘密信息Kq和随机数R的异或（XOR）操作创建股份。这样产生的股份被级联以产生n 共享Si，从而提供（k，n）阈值秘密共享方案。

公开(公告)号：US20090323948A1

公开(公告)日：2009-12-31

申请号：US12300999

申请日：2007-05-15

申请人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata ,  Keigo Majima ,  Takeshi Kimura ,  Hideki Kokubun ,  Go Ohtake

发明人： Masaru Fukushima ,  Shuichi Sugie ,  Shinsaku Kiyomoto ,  Tatsuo Shibata ,  Keigo Majima ,  Takeshi Kimura ,  Hideki Kokubun ,  Go Ohtake

IPC分类号： H04N7/167 ,  H04L9/00 ,  H04L9/08

CPC分类号： H04L9/065 ,  H04L2209/56 ,  H04L2209/601 ,  H04L2209/80 ,  H04N7/1675 ,  H04N21/41407 ,  H04N21/4405 ,  H04N21/63345

摘要： Provided is a system far receiving a initialization packet containing an initial vector for initializing stream encryption algorithm and an identifier of a key for decrypting an encrypted stream, initializing a decryption modules and decrypting the encrypted stream, wherein the system stores an identifier of a key which is needed to decrypt a next program in a initialization packet of a current program and informs a user of whether a desired key has been acquired or not at timing close to start time of the next program.

摘要翻译： 提供了一种远程接收包含用于初始化流加密算法的初始向量和用于解密加密流的密钥的标识符的初始化分组的系统，初始化解密模块和解密加密流，其中系统存储密钥的标识符， 需要解密当前程序的初始化包中的下一个程序，并且在接下来的程序的开始时刻的定时通知用户是否已经获取了所需的密钥。

公开(公告)号：US20080205637A1

公开(公告)日：2008-08-28

申请号：US12014471

申请日：2008-01-15

申请人： Jun KURIHARA ,  Shinsaku KIYOMOTO ,  Toshiaki TANAKA

发明人： Jun KURIHARA ,  Shinsaku KIYOMOTO ,  Toshiaki TANAKA

IPC分类号： H04L9/28

CPC分类号： H04L9/085

摘要： A threshold secret sharing apparatus, a threshold secret sharing scheme, a secret information recovery apparatus a secret information recovery method, and a program thereof are provided using XOR computation, thereby offering a general (k,n) threshold secret sharing scheme with high computation speed. Secret information K is divided into (np−1) divided pieces of secret information Kq (np is a prime number which is equal to or greater than a secret distribution number n). Furthermore, dummy secret information K0 is generated. Moreover, random numbers R, which are pairwise independent are generated. Then, pieces of shares are created using exclusive-OR (XOR) operations based upon the dummy secret information K0, the divided piece of secret information Kq, and the random numbers R. The pieces of shares thus generated are concatenated so as to generate n shares Si, thereby providing a (k,n) threshold secret sharing scheme.

摘要翻译： 使用XOR计算提供阈值秘密共享装置，阈值秘密共享方案，秘密信息恢复装置，秘密信息恢复方法及其程序，从而提供具有高计算速度的通用（k，n）阈值秘密共享方案 。 秘密信息K被划分为（n _{p-1）个分割的秘密信息K（q），其中n是相等的素数 大于秘密分配数n）。 此外，生成伪秘密信息K <0> 0 。 此外，生成成对独立的随机数R。 然后，使用基于伪秘密信息K <0>，所分割的秘密信息K 的异或（XOR）操作和随机的 数字R.这样生成的股份被级联以产生n股S i N i，从而提供（k，n）阈值秘密共享方案。}