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1. 发明授权

US06185308B2 Key recovery system 失效
标题翻译：钥匙恢复系统
公开(公告)号：US06185308B2
公开(公告)日：2001-02-06
申请号：US09048096
申请日：1998-03-26
申请人： Hiroyuki Ando , Ichir{overscore (o)}u M{overscore (o)}rita , Yasutsugu Kuroda , Naoya Torii , Masashi Yamazaki , Hiroshi Miyauchi , Kazue Sako , Seiichi Domyo , Hiroyoshi Tsuchiya , Seiko Kanno
发明人： Hiroyuki Ando , Ichir{overscore (o)}u M{overscore (o)}rita , Yasutsugu Kuroda , Naoya Torii , Masashi Yamazaki , Hiroshi Miyauchi , Kazue Sako , Seiichi Domyo , Hiroyoshi Tsuchiya , Seiko Kanno
IPC分类号： H04L900
CPC分类号： H04L9/3226 , H04L9/0897
摘要： A key recovery information distribution device is provided between a recoverer device and a key recovery device, recovers a data key for the recoverer device, and reduces the load of the recoverer device. Data is encrypted using the data key and stored with key recovery information. The recoverer device which decrypts the encrypted data distributes the key recovery information to key recovery devices through the key recovery information distribution device to recover key information. A recoverer is authenticated directly between the key recovery device and the recoverer device, and then the key information is transmitted to the recoverer device, and the recoverer device recovers the data key.
摘要翻译：在恢复装置和密钥恢复装置之间提供密钥恢复信息分配装置，恢复用于恢复装置的数据密钥，并减少重新装置装置的负载。使用数据密钥对数据进行加密，并与密钥恢复信息一起存储。解密加密数据的恢复装置通过密钥恢复信息分配装置将密钥恢复信息分配给密钥恢复装置，以恢复密钥信息。恢复器在密钥恢复装置和恢复装置之间直接认证，然后将密钥信息发送给恢复装置，恢复装置恢复数据密钥。

2. 发明授权

US06266421B1 Key recovery system and key recovery method 失效
标题翻译：密钥恢复系统和密钥恢复方法
公开(公告)号：US06266421B1
公开(公告)日：2001-07-24
申请号：US09111281
申请日：1998-07-07
申请人： Seiichi Domyo , Hiroyoshi Tsuchiya , Seiko Kanno , Hiroyuki Ando , Ichirou Morita , Yasutsugu Kuroda , Naoya Torii , Hiroshi Miyauchi , Kazue Sako , Masashi Yamazaki
发明人： Seiichi Domyo , Hiroyoshi Tsuchiya , Seiko Kanno , Hiroyuki Ando , Ichirou Morita , Yasutsugu Kuroda , Naoya Torii , Hiroshi Miyauchi , Kazue Sako , Masashi Yamazaki
IPC分类号： H04L900
CPC分类号： H04L9/0894
摘要： The present invention has an object to overcome problems of a key recovery system using a conventional KRF system and to achieve efficient operation of the overall key recovery system. A key recovery system of the present invention includes check units 12a, 12b for checking whether a user has a recovery authorization for a common key KS, on the basis of a recovery condition RC specified by a recovery condition index RCI which is added to an encrypted message (encrypted message obtained by encrypting the common key KS with a public key KRCpub) supplied from a terminal (10a to 10d) of the user concerned, and a key recovery control unit 14 which is provided separately from the check units 12a, 12b and decrypts the encrypted message with a private key KRCpri paired with the public key KRCpub to recover the common key. The check unit 12a, 12b supplies the common key KS recovered in the key recovery control unit 14 to the user concerned only when the user has the recovery authorization.
摘要翻译：本发明的目的是克服使用常规KRF系统的密钥恢复系统的问题并实现整体密钥恢复系统的有效操作。本发明的密钥恢复系统包括基于由恢复条件索引RCI指定的恢复条件RC来检查用户是否具有用于公共密钥KS的恢复授权的检查单元12a，12b，其被添加到加密的从相关用户的终端（10a〜10d）提供的消息（通过用公钥KRCpub加密公共密钥KS而获得的加密消息）以及与检查单元12a，12b分开设置的密钥恢复控制单元14以及使用与公钥KRCpub配对的私钥KRCpri解密加密消息，以恢复公用密钥。检查单元12a，12b仅在用户具有恢复授权时将恢复在密钥恢复控制单元14中的公用密钥KS提供给用户。

3. 发明授权

US06272225B1 Key recovery condition encryption and decryption apparatuses 失效
标题翻译：密钥恢复条件加解密装置
公开(公告)号：US06272225B1
公开(公告)日：2001-08-07
申请号：US09110392
申请日：1998-07-07
申请人： Hiroshi Miyauchi , Kazue Sako , Masashi Yamazaki , Seiichi Domyo , Hiroyoshi Tsuchiya , Seiko Kanno , Ichirou Morita , Naoya Torii , Hiroyuki Ando , Yasutsugu Kuroda
发明人： Hiroshi Miyauchi , Kazue Sako , Masashi Yamazaki , Seiichi Domyo , Hiroyoshi Tsuchiya , Seiko Kanno , Ichirou Morita , Naoya Torii , Hiroyuki Ando , Yasutsugu Kuroda
IPC分类号： H04L932
CPC分类号： H04L9/0643 , H04L9/0894
摘要： A key recovery condition encryption apparatus includes a hashing unit, a first concatenating unit, and a condition information encryption unit. The hashing unit calculates a hash value on the basis of a hash function using a key recovery information text serving as information necessary for performing key recovery. The first concatenating unit concatenates the hash value from the hashing unit to the key recovery condition. The condition information encryption unit encrypts a concatenating result from the first concatenating unit by using a first encryption key. Also is disclosed a key recovery condition decryption apparatus for decrypting the encrypted data from the above encryption apparatus.
摘要翻译：密钥恢复条件加密装置包括散列单元，第一连接单元和条件信息加密单元。哈希单元使用密钥恢复信息文本作为散列函数来计算散列值，作为执行密钥恢复所必需的信息。第一级联单元将散列单元的哈希值连接到密钥恢复条件。条件信息加密单元通过使用第一加密密钥来加密来自第一连接单元的连接结果。还公开了一种用于从上述加密装置解密加密数据的密钥恢复条件解密装置。

4. 发明授权

US06505213B1 File management apparatus and method 失效
标题翻译：文件管理装置和方法
公开(公告)号：US06505213B1
公开(公告)日：2003-01-07
申请号：US09411647
申请日：1999-10-04
申请人： Jun Kamada , Etsuo Ono , Yasutsugu Kuroda
发明人： Jun Kamada , Etsuo Ono , Yasutsugu Kuroda
IPC分类号： G06F1730
CPC分类号： G06F3/061 , G06F3/0643 , G06F3/0676 , G06F12/08 , G11B27/002 , G11B27/105 , G11B27/329 , Y10S707/99953
摘要： An information storage device in which a plurality of storage media having different accessibility is provided with a unit for controlling the retrieval of a portable storage medium which can be retrieved from an information storage device by selecting, at a request to retrieve the portable storage medium, the storage medium either as storing the body of a file and the data for use in accessing the file or as storing only the body of the file. The information storage device stores in and moves to a storage medium at an appropriate level the data for use in accessing a file depending on the situation.
摘要翻译：一种信息存储装置，其中具有不同可访问性的多个存储介质设置有用于控制可从信息存储装置检索的便携式存储介质的检索单元，所述单元可以在检索便携式存储介质的请求时，存储介质作为存储文件的主体和用于访问文件的数据或仅存储文件的主体。信息存储装置根据情况在合适的水平存储和移动到用于访问文件的数据的存储介质中。

5. 发明申请

US20080271154A1 Apparatus, method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions 审中-公开
标题翻译：具有用于管理具有改变防止/检测功能的文件的记录程序的装置，方法和计算机可读存储介质
公开(公告)号：US20080271154A1
公开(公告)日：2008-10-30
申请号：US12153013
申请日：2008-05-12
申请人： Jun Kamada , Yasutsugu Kuroda , Etsuo Ono
发明人： Jun Kamada , Yasutsugu Kuroda , Etsuo Ono
IPC分类号： G06F12/14
CPC分类号： G06F21/64
摘要： By storing an authenticator created from a data file in a secure area usually unaccessible, the alteration of the data file can be detected. Furthermore, by designating the data file as a main-file and creating authenticators from various kinds of sub-files related to the main-file, the size of the secure area where the authenticators are stored, can be reduced.
摘要翻译：通过将从数据文件创建的认证器存储在通常不可访问的安全区域中，可以检测数据文件的改变。此外，通过将数据文件指定为主文件并且从与主文件相关的各种子文件创建认证者，可以减少存储认证者的安全区域的大小。

6. 发明授权

US06470448B1 Apparatus and method for proving transaction between users in network environment 失效
标题翻译：网络环境中用户交易验证的装置和方法
公开(公告)号：US06470448B1
公开(公告)日：2002-10-22
申请号：US08831328
申请日：1997-03-31
申请人： Yasutsugu Kuroda , Masahiro Komura , Satoru Torii , Shoko Iwase , Etsuo Ono
发明人： Yasutsugu Kuroda , Masahiro Komura , Satoru Torii , Shoko Iwase , Etsuo Ono
IPC分类号： H04L900
CPC分类号： G06Q20/389 , G06Q20/401 , H04L9/321 , H04L9/3247
摘要： The digital signatures of users A and B are created for a transaction document which states the contents of a transaction between the users A and B, and they are sent to a transaction proof device of a notary public being a third party, together with the transaction document. Thus, the users A and B and the notary public share information, and the notary public can objectively prove the transactional contents, etc.
摘要翻译：用户A和B的数字签名是为交易文件创建的，该交易文件说明用户A和B之间的交易内容，并将它们与交易一起发送给作为第三方的公证人的交易证明设备文件。因此，用户A和B以及公证人公开信息和公证人可以客观地证明交易内容等。

7. 发明授权

US06922775B2 User support system for cryptographic communication in network systems 失效
标题翻译：网络系统密码通信用户支持系统
公开(公告)号：US06922775B2
公开(公告)日：2005-07-26
申请号：US10032492
申请日：2002-01-02
申请人： Hiroaki Kikuchi , Yasutsugu Kuroda , Hideyuki Aikawa
发明人： Hiroaki Kikuchi , Yasutsugu Kuroda , Hideyuki Aikawa
IPC分类号： H04L9/08 , H04L9/12
CPC分类号： H04L9/0894
摘要： A user support system for cryptographic communication includes a key storage for storing keys used for deciphering, a deciphering part for deciphering an enciphered communication text into a deciphered communication text using a key, and a controller for starting the deciphering part only when an input communication text is the enciphered communication text and for supplying the key that is necessary for the deciphering in the deciphering part by retrieving the key from the key storage.
摘要翻译：用于密码通信的用户支持系统包括用于存储用于解密的密钥的密钥存储器，用于使用密钥将加密的通信文本解密为解密的通信文本的解密部分，以及仅当输入的通信文本是加密的通信文本，并且通过从密钥存储器检索密钥来提供解密部分中解密所必需的密钥。

8. 发明授权

US06915434B1 Electronic data storage apparatus with key management function and electronic data storage method 失效
标题翻译：具有密钥管理功能的电子数据存储装置和电子数据存储方法
公开(公告)号：US06915434B1
公开(公告)日：2005-07-05
申请号：US09327477
申请日：1999-06-08
申请人： Yasutsugu Kuroda , Jun Kamada , Shoko Iwase , Bintatsu Noda , Etsuo Ono
发明人： Yasutsugu Kuroda , Jun Kamada , Shoko Iwase , Bintatsu Noda , Etsuo Ono
IPC分类号： G06F12/14 , G06F21/24 , G09C1/00 , H04L9/08 , H04L9/32 , G06F11/30
CPC分类号： H04L9/0833 , H04L9/0841 , H04L2209/60
摘要： A storage apparatus includes a key management unit for managing an individual key unique to the apparatus and a common key shared with other storage apparatuses, and an encryption unit for performing an encrypting process or verifying data for performing the encrypting process on electronic data stored in the apparatus to which the unit belongs using the individual key, and performing the encrypting process or verifying the data on the electronic data transmitted to or received from another apparatus using the common key. Thus, the apparatus communicates data using an applicable common key in a local environment and a global environment, appropriately manages a key in each environment, and guarantees the security of the electronic data.
摘要翻译：存储装置包括用于管理该设备唯一的专用密钥的密钥管理单元和与其他存储装置共用的公用密钥，以及加密单元，用于对存储在该存储装置中的电子数据执行加密处理或验证数据进行加密处理使用专用密钥对该单元所属的设备进行加密处理，或使用该公共密钥对从其他设备发送或接收的电子数据的数据进行验证。因此，该装置使用本地环境和全球环境中的适用公共密钥传送数据，适当地管理每个环境中的密钥，并保证电子数据的安全性。

9. 发明授权

US5642420A Cryptoinformation repeater, subscriber terminal connected thereto, and cryptocommunication method 失效
标题翻译：加密信息中继器，与其连接的用户终端，以及密码通信方法
公开(公告)号：US5642420A
公开(公告)日：1997-06-24
申请号：US358721
申请日：1994-12-19
申请人： Yasutsugu Kuroda , Hiroaki Kikuchi
发明人： Yasutsugu Kuroda , Hiroaki Kikuchi
IPC分类号： G09C1/00 , G06F12/14 , G06F21/24 , H04L9/00 , H04L9/08 , H04L9/10 , H04L9/32 , H04L29/06
CPC分类号： H04L63/0442 , H04L29/06 , H04L63/0464 , H04L63/06 , H04L63/0807 , H04L9/083 , H04L63/126
摘要： A cryptographic information repeater installed in a system for transmitting information among a plurality of subscribers interconnected by a communication line. The repeater acts as a managing center for managing cryptokeys. Therefore, confidentiality can be effectively preserved because a common secret key is not shared by all the subscribers. When some subscriber withdraws or a new user enters, it is only necessary to update the database concentrated in the cryptographic information repeater. Therefore, if the number of subscribers increases, it will not be cumbersome to manage the data.
摘要翻译：一种安装在用于通过通信线路互连的多个用户之间传送信息的系统中的密码信息中继器。中继器作为管理密钥的管理中心。因此，可以有效地保留机密性，因为所有用户不共享公共秘密密钥。当一些用户退出或新用户进入时，只需要更新集中在密码信息中继器中的数据库。因此，如果用户数量增加，则管理数据并不麻烦。

10. 发明授权

US06421779B1 Electronic data storage apparatus, system and method 失效
标题翻译：电子数据存储装置，系统及方法
公开(公告)号：US06421779B1
公开(公告)日：2002-07-16
申请号：US09123559
申请日：1998-07-29
申请人： Yasutsugu Kuroda , Jun Kamada , Etsuo Ono
发明人： Yasutsugu Kuroda , Jun Kamada , Etsuo Ono
IPC分类号： H04L900
CPC分类号： H04L9/3263 , H04L9/3273 , H04L2209/56 , H04L2209/60
摘要： An electronic data storage apparatus includes a data storage unit for storing electronic data; an authentication information generation unit for generating authentication information used in detecting an amendment made to the stored electronic data; and an authentication information data output unit for outputting the electronic data after adding to the electronic data the authentication information generated for the electronic data. When an authorization unit authorizes the electronic data storage apparatus after it is determined that the specification of the electronic data satisfies a predetermined condition, or when mutual authentication is performed between electronic data storage apparatuses, the electronic data storage apparatus stores the data. Thus, the electronic data can be protected from being illegally amended or deleted, and can be safely stored in a format in which sufficient legal evidence can be maintained on the electronic data.
摘要翻译：电子数据存储装置包括用于存储电子数据的数据存储单元; 认证信息生成单元，用于生成用于检测对所存储的电子数据的修改的认证信息; 以及认证信息数据输出单元，用于在向电子数据添加了为电子数据生成的认证信息之后输出电子数据。在确定电子数据的规格满足预定条件之后或在电子数据存储装置之间进行相互认证时，授权单元授权电子数据存储装置，电子数据存储装置存储数据。因此，可以保护电子数据不被非法修改或删除，并且可以以能够对电子数据保持足够的法律证据的格式来安全地存储电子数据。

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