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1. 发明专利

JP5080908B2 Confidential information processing equipment, confidential information processing device, and confidential information processing method 有权
公开(公告)号：JP5080908B2
公开(公告)日：2012-11-21
申请号：JP2007224262
申请日：2007-08-30
申请人：パナソニック株式会社
发明人：祐輔根本 , 唯之鳥崎 , 睦藤原 , 悟栗木 , 正宏佐野
IPC分类号： H04L9/14 , H04N7/167 , H04N21/2389 , H04N21/438
摘要： PROBLEM TO BE SOLVED: To provide a confidential information processing device which can perform multiple cryptographic computation for one stream using non-unique computation methods and can facilitate control by software. SOLUTION: The confidential information processing device 200 according to the present invention includes: stream analysis units 230-233 each of which determines the target data by analyzing the stream; computation units 250-252 each of which performs the cryptographic computation on the target data using contexts 260-262 that are held; a context storage unit 211 which stores a plurality of the contexts and a correspondence table 212 which indicates the number of cryptographic computations; a context control unit 210 which saves and restores the context between the computation units 250-252 and the context storage unit 211; and stream control units 220 and 221 each of which outputs the stream on which the cryptographic computation is performed to external devices 201 and 202 or to the stream analysis units 230-233 on the basis of the number of cryptographic computations indicated in the correspondence table 212. COPYRIGHT: (C)2008,JPO&INPIT

2. 发明专利

JP4676547B2 Semiconductor device and the boot method 有权
公开(公告)号：JP4676547B2
公开(公告)日：2011-04-27
申请号：JP2009191595
申请日：2009-08-21
申请人：パナソニック株式会社
发明人：信治井上 , 孝幸伊藤 , 卓治前田 , 純一安井 , 泰司山田 , 祐輔根本 , 睦藤原
IPC分类号： G06F21/22 , G06F21/24

3. 发明专利

JP4372061B2 Security information implementation system and lsi 有权
公开(公告)号：JP4372061B2
公开(公告)日：2009-11-25
申请号：JP2005193948
申请日：2005-07-01
申请人：パナソニック株式会社
发明人：祐輔根本 , 睦藤原
IPC分类号： G09C1/00 , G06F21/60 , G06F21/62 , H04L9/10
CPC分类号： H04L9/0637 , H04L9/0869 , H04L9/0894 , H04L2209/12
摘要： A security information implementation system includes a storage section 120a for storing first encrypted security information EDK (MK) provided by encrypting final security information DK according to internal security information MK and second encrypted security information EMK (CK) provided by encrypting the internal security information MK according to conversion security information CK and an LSI 120b including a seed generation section 131 for storing a first constant value containing address information on which a conversion seed is generated based and a second constant value and a third constant value on which a test conversion seed is generated based and outputting the first constant value and the second constant value or the third constant value as the conversion seed or the test conversion seed in response to a test signal and a mode setup value; a one-way function circuit 32 for converting the conversion seed or the test conversion seed output from the seed generation section 131 according to the first encrypted security information EDK (MK) input from the storage section 120a to generate the conversion security information CK or test conversion security information; a decryption circuit 33 for decrypting the second encrypted security information EMK (CK) input from the storage section 120a using the output of the one-way function circuit 32 as a key; and a decryption circuit 34 for decrypting the first encrypted security information EDK (MK) input from the storage section 120a using the output of the decryption circuit 33 as a key.

4. 发明专利

JP4864456B2 Tampering detection data generating method 有权
公开(公告)号：JP4864456B2
公开(公告)日：2012-02-01
申请号：JP2005379651
申请日：2005-12-28
申请人：パナソニック株式会社
发明人：信治井上 , 友哉佐藤 , 謙太郎塩見 , 祐輔根本 , 和也清水 , 睦藤原 , 一哉藤村 , 誠越智 , 唯之鳥崎
IPC分类号： H04L9/32 , H04L9/08

5. 发明专利

JP4668645B2 Dma controller and data transfer control method 有权
公开(公告)号：JP4668645B2
公开(公告)日：2011-04-13
申请号：JP2005049398
申请日：2005-02-24
申请人：パナソニック株式会社
发明人：祐輔根本 , 睦藤原 , 唯之鳥崎
IPC分类号： G06F21/24 , G06F12/14 , G06F13/28 , G06F21/02
CPC分类号： G06F13/28

6. 发明专利

JPWO2010116618A1 鍵実装システム有权
公开(公告)号：JPWO2010116618A1
公开(公告)日：2012-10-18
申请号：JP2011508205
申请日：2010-03-15
申请人：パナソニック株式会社
发明人：横田　薫 , 薫横田 , 昭仁桂 , 昭仁桂 , 根本　祐輔 , 祐輔根本 , 唯之鳥崎 , 唯之鳥崎 , 藤原　睦 , 睦藤原
IPC分类号： H04L9/08 , G06F21/10 , G06F21/55 , G06F21/72 , H04L9/10 , H04L9/14
CPC分类号： H04L9/0866 , G06F21/10 , G06F21/556 , G06F21/72 , G06F2221/0797 , H04L9/0822 , H04L9/0897 , H04L9/321 , H04L63/0428 , H04L63/06 , H04L63/10 , H04L2209/605 , H04L2463/101
摘要：各種の情報漏えいや不正行為を防止し、かつ、拡張性と低コスト性を実現する鍵実装システムを提供する。LSI(10)は、第1の暗号化鍵データを受け、第1の暗号鍵を用いて第1の暗号化鍵データを復号化して第1の復号化鍵データを生成する第1復号化部(101)と、第2のIDに基づいて第2の暗号鍵を生成する第2暗号鍵生成部(105)と、第2の暗号鍵を用いて第1の復号化鍵データを暗号化して第2の暗号化鍵データを生成する第2暗号化部(103)と、第2の暗号化鍵を用いて第2の暗号化鍵データを復号化して第2の復号化鍵データを生成する第2復号化部(104)とを有する。鍵実装時には第2暗号化部(103)が第2の暗号化鍵データを記憶部(11)に格納する。鍵使用時には第2復号化部(104)が記憶部(11)から第2の暗号化鍵データを読み出す。

8. 发明专利

JP4580024B2 Content playback method 有权
公开(公告)号：JP4580024B2
公开(公告)日：2010-11-10
申请号：JP2009112470
申请日：2009-05-07
申请人：パナソニック株式会社
发明人：信治井上 , 孝幸伊藤 , 卓治前田 , 純一安井 , 泰司山田 , 祐輔根本 , 睦藤原
IPC分类号： G06F21/22 , G06F21/24

9. 发明专利

JP4336690B2 A semiconductor device having external interface 有权
公开(公告)号：JP4336690B2
公开(公告)日：2009-09-30
申请号：JP2006070436
申请日：2006-03-15
申请人：パナソニック株式会社
发明人：信治井上 , 孝幸伊藤 , 卓治前田 , 純一安井 , 泰司山田 , 祐輔根本 , 睦藤原
IPC分类号： H04L9/10 , G06F21/24

10. 发明专利

JP5335072B2 Key implementation system 有权
公开(公告)号：JP5335072B2
公开(公告)日：2013-11-06
申请号：JP2011508205
申请日：2010-03-15
申请人：パナソニック株式会社
发明人：薫横田 , 昭仁桂 , 祐輔根本 , 唯之鳥崎 , 睦藤原
IPC分类号： H04L9/08 , G06F21/10 , G06F21/55 , G06F21/62 , G06F21/72 , H04L9/14
CPC分类号： H04L9/0866 , G06F21/10 , G06F21/556 , G06F21/72 , G06F2221/0797 , H04L9/0822 , H04L9/0897 , H04L9/321 , H04L63/0428 , H04L63/06 , H04L63/10 , H04L2209/605 , H04L2463/101
摘要： An LSI includes a first decryptor which receives first encrypted key data, and decrypts the first encrypted key data using a first cryptographic key, thereby generating first decrypted key data, a second cryptographic key generator which generates a second cryptographic key based on a second ID, a second encryptor which encrypts the first decrypted key data using the second cryptographic key, thereby generating second encrypted key data, and a second decryptor which decrypts the second encrypted key data using the second cryptographic key, thereby generating second decrypted key data. At a time of key setting, the second encryptor stores the second encrypted key data in a storage unit. At a time of key usage, the second decryptor reads the second encrypted key data from the storage unit.

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