公开(公告)号：US07706532B2

公开(公告)日：2010-04-27

申请号：US10564465

申请日：2004-07-06

申请人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

发明人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

IPC分类号： H04N7/167

CPC分类号： H04L9/0637 ,  H04L9/12 ,  H04L2209/125 ,  H04N21/2347 ,  H04N21/4307 ,  H04N21/4405

摘要： An encryption apparatus for encrypting input picture data with high secrecy and restoration against an error of encrypted data. An EXOR circuit calculates input picture data and a pseudo random sequence and obtains encrypted data. The obtained encrypted data are held in a first FF circuit. The first FF circuit is reset for each line. Counters count for each line or each frame and are reset for each frame or at the beginning of a program. An encryption device encrypts outputs of a second FF circuit that holds a fixed value, the counters and the first FF circuit with a key and generates a pseudo random sequence. A shift register divides the bit sequence. The EXOR circuit calculates the output of the shift register and the input picture data and obtains encrypted data. Since the encrypted output is fed back, data cannot be stolen using a successive input of the same data. In addition, since an encrypted output that is fed back is reset for each line, the encrypted output can be recovered from an error.

摘要翻译： 一种加密装置，用于针对加密数据的错误高密度地加密输入图像数据并进行恢复。 EXOR电路计算输入图像数据和伪随机序列，并获得加密数据。 获得的加密数据保存在第一FF电路中。 第一个FF电路为每一行复位。 计数器计数每行或每一帧，并为每个帧或程序开始时重置。 加密装置用密钥加密保持固定值的第二FF电路的输出，计数器和第一FF电路，并产生伪随机序列。 移位寄存器分配位序列。 EXOR电路计算移位寄存器和输入图像数据的输出，并获得加密数据。 由于加密输出被反馈，所以不能使用相同数据的连续输入来窃取数据。 此外，由于反馈的加密输出针对每行复位，所以加密的输出可以从错误中恢复。

公开(公告)号：US20070177718A1

公开(公告)日：2007-08-02

申请号：US10572162

申请日：2004-09-16

申请人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

发明人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

IPC分类号： H04L9/28

CPC分类号： H04N21/4405 ,  H04L9/0662 ,  H04L9/14 ,  H04L9/3263 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/835

摘要： Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid video data encrypted by an encryptor 112. An output of the inserter 114 is supplied to an extractor 144 through a transmission path 120. The encrypted valid video data and arithmetic operation resultant data of the arithmetic operation unit 113 are extracted. An arithmetic operation unit 143 executes the same arithmetic operation as that of the arithmetic operation unit 113 to data corresponding to the data used in the arithmetic operation unit 113 from the valid video data decrypted by a decryptor 141 and extracted by an extractor 144. A comparator 145 compares an output of the arithmetic operation unit 143 with an arithmetic operation result extracted from data 140. When both of them do not coincide, it is determined that there is a possibility that the transmission data has been altered. An output of an another-output generator 146 is outputted as output data 148.

摘要翻译： 通过改变数据来防止视频数据的利用。 提取器111提取数据110中的有效视频数据和数据中的预定数据。 插入器114将由算术运算单元113将预定数据的算术运算结果插入由加密器112加密的有效视频数据。 插入器114的输出通过传输路径120提供给提取器144。 提取算术运算部113的加密的有效视频数据和算术运算结果数据。 算术运算单元143对与算术运算单元113中使用的数据相对应的数据，与由解密器141解密并由提取器144提取的有效视频数据执行与算术运算单元113相同的算术运算。 比较器145将算术运算单元143的输出与从数据140提取的算术运算结果进行比较。 当它们都不一致时，确定存在发送数据已被改变的可能性。 输出另一输出发生器146的输出作为输出数据148。

公开(公告)号：US20060210065A1

公开(公告)日：2006-09-21

申请号：US10564465

申请日：2004-07-06

申请人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

发明人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

IPC分类号： H04L9/28

CPC分类号： H04L9/0637 ,  H04L9/12 ,  H04L2209/125 ,  H04N21/2347 ,  H04N21/4307 ,  H04N21/4405

摘要： Input picture data are encrypted with high secrecy and restoration against an error of encrypted data. An EXOR circuit 100 calculates input picture data and a pseudo random sequence and obtains encrypted data. The obtained encrypted data are held in an FF circuit 101. The FF circuit 101 is reset for each line. Counters 102 and 103 count for each line or each frame and are reset for each frame or at the beginning of a program. An encryption device 105 encrypts outputs of an FF circuit 104 that holds a fixed value, the counters 103 and 102, and the FF circuit 101 with a key (K) and generates a pseudo random sequence. A shift register 106 divides the bit sequence. The EXOR 100 calculates the output of the shift register 106 and the input picture data and obtains encrypted data. Since the encrypted output is fed back, data cannot be stolen using a successive input of the same data. In addition, since an encrypted output that is fed back is reset for each line, the encrypted output can be completely recovered from an error.

摘要翻译： 输入图像数据以加密数据的错误的高度保密和恢复加密。 EXOR电路100计算输入图像数据和伪随机序列，并获得加密数据。 获得的加密数据保存在FF电路101中。 对于每一行，FF电路101被复位。 计数器102和103对于每一行或每个帧进行计数，并且对于每个帧或在程序的开始被重置。 加密装置105利用密钥（K）加密保持固定值的FF电路104的输出，计数器103和102以及FF电路101，并产生伪随机序列。 移位寄存器106分割位序列。 EXOR 100计算移位寄存器106的输出和输入图像数据，并获得加密的数据。 由于加密输出被反馈，所以不能使用相同数据的连续输入来窃取数据。 另外，由于反馈的加密输出针对每行复位，所以加密的输出可以从错误中完全恢复。

公开(公告)号：US07756270B2

公开(公告)日：2010-07-13

申请号：US10483136

申请日：2003-05-07

申请人： Tsutomu Shimosato ,  Yujiro Ito

发明人： Tsutomu Shimosato ,  Yujiro Ito

IPC分类号： H04L9/00

CPC分类号： H04N21/2347 ,  H04L9/0656 ,  H04L9/12 ,  H04L2209/12 ,  H04N7/1675 ,  H04N21/4405

摘要： An apparatus for enciphering data by which enciphered digital information data with improved cipher strength are obtained by subjecting digital information data to enciphered process responding to random number data or pseudo-random number data produced in accordance with key data, and which comprises an enciphering portion for subjecting an HD signal to enciphering process to produce an enciphered HD signal, a cipher producing portion for producing, in response to key data, a cipher data from which random number data or pseudo-random number data are obtained to be supplied to the enciphering portion, a register for supplying the cipher producing portion with input data, and a line number data extracting portion for extracting line number data from the HD signal to be supplied to the register as initial data.

摘要翻译： 一种用于对数据进行加密的装置，通过使数字信息数据对根据密钥数据产生的随机数字数据或伪随机数字数据进行加密处理来获得具有改进的密码强度的加密数字信息数据，该装置包括：加密部分， 对HD信号进行加密处理以产生加密HD信号;密码产生部分，用于响应于密钥数据产生一个密码数据，从该数据获得随机数数据或伪随机数数据，以提供给加密部分 ，用于向密码产生部分提供输入数据的寄存器，以及用于从作为初始数据提供给该寄存器的HD信号中提取行号数据的行号数据提取部分。

公开(公告)号：US20090245509A1

公开(公告)日：2009-10-01

申请号：US12481658

申请日：2009-06-10

申请人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

发明人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

IPC分类号： H04L9/28 ,  H04L9/20

CPC分类号： H04N21/4405 ,  H04L9/0662 ,  H04L9/14 ,  H04L9/3263 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/835

摘要： Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid video data encrypted by an encryptor 112. An output of the inserter 114 is supplied to an extractor 144 through a transmission path 120. The encrypted valid video data and arithmetic operation resultant data of the arithmetic operation unit 113 are extracted. An arithmetic operation unit 143 executes the same arithmetic operation as that of the arithmetic operation unit 113 to data corresponding to the data used in the arithmetic operation unit 113 from the valid video data decrypted by a decryptor 141 and extracted by an extractor 144. A comparator 145 compares an output of the arithmetic operation unit 143 with an arithmetic operation result extracted from data 140. When both of them do not coincide, it is determined that there is a possibility that the transmission data has been altered. An output of an another-output generator 146 is outputted as output data 148.

摘要翻译： 通过改变数据来防止视频数据的利用。 提取器111提取数据110中的有效视频数据和数据中的预定数据。 插入器114将由算术运算单元113将预定数据的算术运算结果插入由加密器112加密的有效视频数据。插入器114的输出通过传输路径120提供给提取器144。 提取算术运算部113的视频数据和算术运算结果数据。 算术运算单元143对与算术运算单元113中使用的数据相对应的数据，由解密器141解密的有效视频数据执行与算术运算单元113相同的算术运算，并由提取器144抽出。比较器 145将算术运算单元143的输出与从数据140提取的算术运算结果进行比较。当它们都不一致时，确定存在发送数据已被改变的可能性。 输出另一输出发生器146的输出作为输出数据148。

公开(公告)号：US08165295B2

公开(公告)日：2012-04-24

申请号：US10552185

申请日：2004-04-06

申请人： Yujiro Ito ,  Tsutomu Shimosato

发明人： Yujiro Ito ,  Tsutomu Shimosato

IPC分类号： H04L9/00

CPC分类号： H04L63/0428 ,  H04N5/913 ,  H04N7/1675 ,  H04N9/8205 ,  H04N21/235 ,  H04N21/2351 ,  H04N21/23895 ,  H04N21/435 ,  H04N2005/91364

摘要： Encrypted auxiliary information data DYAE/DCAE including no inhibited codes is generated based on auxiliary information data DYA/DCA including no inhibited codes, in an auxiliary data packet having an auxiliary data flag ADF formed of a first combination of a plurality of inhibited codes, the auxiliary data flag ADF is replaced with an auxiliary data flag EADF formed of a second combination of the inhibited codes, the second combination being different from the first combination, to form an encrypted auxiliary data packet having the auxiliary data flag EADF and including the encrypted auxiliary information data DYAE/DCAE, and the encrypted auxiliary data packet is transmitted.

摘要翻译： 在具有由多个禁止代码的第一组合形成的辅助数据标志ADF的辅助数据分组中，基于不包括禁止代码的辅助信息数据DYA / DCA生成包括不禁止代码的加密辅助信息数据DYAE / DCAE， 辅助数据标志ADF被替换为由禁止代码的第二组合形成的辅助数据标志EADF，第二组合与第一组合不同，以形成具有辅助数据标志EADF的加密辅助数据分组，并且包括加密辅助 信息数据DYAE / DCAE和加密的辅助数据包被发送。

公开(公告)号：US08024580B2

公开(公告)日：2011-09-20

申请号：US12481658

申请日：2009-06-10

申请人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

发明人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

IPC分类号： H04N7/167

CPC分类号： H04N21/4405 ,  H04L9/0662 ,  H04L9/14 ,  H04L9/3263 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/835

摘要： Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid video data encrypted by an encryptor 112. An output of the inserter 114 is supplied to an extractor 144 through a transmission path 120. The encrypted valid video data and arithmetic operation resultant data of the arithmetic operation unit 113 are extracted. An arithmetic operation unit 143 executes the same arithmetic operation as that of the arithmetic operation unit 113 to data corresponding to the data used in the arithmetic operation unit 113 from the valid video data decrypted by a decryptor 141 and extracted by an extractor 144. A comparator 145 compares an output of the arithmetic operation unit 143 with an arithmetic operation result extracted from data 140. When both of them do not coincide, it is determined that there is a possibility that the transmission data has been altered. An output of an another-output generator 146 is outputted as output data 148.

摘要翻译： 通过改变数据来防止视频数据的利用。 提取器111提取数据110中的有效视频数据和数据中的预定数据。 插入器114将由算术运算单元113将预定数据的算术运算结果插入由加密器112加密的有效视频数据。插入器114的输出通过传输路径120提供给提取器144。 提取算术运算部113的视频数据和算术运算结果数据。 算术运算单元143对与算术运算单元113中使用的数据相对应的数据，由解密器141解密的有效视频数据执行与算术运算单元113相同的算术运算，并由提取器144抽出。比较器 145将算术运算单元143的输出与从数据140提取的算术运算结果进行比较。当它们都不一致时，确定存在发送数据已被改变的可能性。 输出另一输出发生器146的输出作为输出数据148。

公开(公告)号：US08000476B2

公开(公告)日：2011-08-16

申请号：US10483361

申请日：2003-05-07

申请人： Tsutomu Shimosato ,  Yujiro Ito

发明人： Tsutomu Shimosato ,  Yujiro Ito

IPC分类号： H04M3/16 ,  H04L9/08

CPC分类号： H04N7/1675 ,  H04L9/0891 ,  H04L2209/34 ,  H04N21/2347 ,  H04N21/23602 ,  H04N21/4405

摘要： A method of enciphering data which is applicable to cipher-transmission of digital information data, in which the HD-SDI signal DHS is subjected to enciphering process using common key data DEY which is common to encipherment and decipherment to produce enciphered HD-SDI signal DHSE, the common key data DEY are subjected to enciphering process using open key data DOY to produce enciphered common key data DXY, and the enciphered HD-SDI signal DHSE accompanied with the enciphered common key data DXY are send to be transmitted, so that such a fear that the common key data DEY are eavesdropped on the transmission thereof can be effectively reduced.

摘要翻译： 一种可应用于数字信息数据的密码传输的数据的方法，其中HD-SDI信号DHS使用与加密和解密相同的公共密钥数据DEY进行加密处理，以产生加密的HD-SDI信号DHSE 通过使用开放密钥数据DOY对公用密钥数据DEY进行加密处理，生成加密的公共密钥数据DXY，发送加密的加密的公共密钥数据DXY的加密的HD-SDI信号DHSE进行发送， 可以有效地减少对其通信密钥数据DEY被窃听的担心。

公开(公告)号：US07885407B2

公开(公告)日：2011-02-08

申请号：US10572162

申请日：2004-09-16

申请人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

发明人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

IPC分类号： H04N7/167

CPC分类号： H04N21/4405 ,  H04L9/0662 ,  H04L9/14 ,  H04L9/3263 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/835

摘要： Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid video data encrypted by an encryptor 112. An output of the inserter 114 is supplied to an extractor 144 through a transmission path 120. The encrypted valid video data and arithmetic operation resultant data of the arithmetic operation unit 113 are extracted. An arithmetic operation unit 143 executes the same arithmetic operation as that of the arithmetic operation unit 113 to data corresponding to the data used in the arithmetic operation unit 113 from the valid video data decrypted by a decryptor 141 and extracted by an extractor 144. A comparator 145 compares an output of the arithmetic operation unit 143 with an arithmetic operation result extracted from data 140. When both of them do not coincide, it is determined that there is a possibility that the transmission data has been altered. An output of an another-output generator 146 is outputted as output data 148.

摘要翻译： 通过改变数据来防止视频数据的利用。 提取器111提取数据110中的有效视频数据和数据中的预定数据。 插入器114将由算术运算单元113将预定数据的算术运算结果插入由加密器112加密的有效视频数据中。插入器114的输出通过传输路径120提供给提取器144。 提取算术运算部113的视频数据和算术运算结果数据。 算术运算单元143对与算术运算单元113中使用的数据相对应的数据，由解密器141解密的有效视频数据执行与算术运算单元113相同的算术运算，并由提取器144提取。比较器 145将算术运算单元143的输出与从数据140提取的算术运算结果进行比较。当它们都不一致时，确定存在发送数据已被改变的可能性。 输出另一输出发生器146的输出作为输出数据148。

公开(公告)号：US07519182B2

公开(公告)日：2009-04-14

申请号：US10482972

申请日：2003-05-07

申请人： Tsutomu Shimosato ,  Yujiro Ito

发明人： Tsutomu Shimosato ,  Yujiro Ito

IPC分类号： H04L9/00

CPC分类号： H04L9/0656 ,  H04L2209/12 ,  H04L2209/34 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/26613 ,  H04N21/4405

摘要： An apparatus for enciphering digital information data with improved cipher strength by subjecting digital information data to enciphered process responding to random number data or pseudo-random number data produced in accordance with key data. The apparatus comprises an enciphering portion for producing the enciphered digital information data, a cipher producing portion for producing, in response to the key data, a cipher data from which random number data or pseudo-random number data are obtained to be supplied to the enciphering portion, a register for supplying the cipher producing portion with input data, and an initial value data generator for supplying the register with enciphered initial value data.

摘要翻译： 一种用于通过对数字信息数据进行加密处理来响应根据密钥数据产生的随机数字数据或伪随机数字数据来加密数字信息数据的装置。 该装置包括用于产生加密的数字信息数据的加密部分，用于响应于密钥数据产生密码数据的密码产生部分，从该数据获得随机数数据或伪随机数数据以提供给加密数据 部分，用于向密码产生部分提供输入数据的寄存器，以及用于向寄存器提供加密初始值数据的初始值数据生成器。