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1. 发明专利

JP2011119853A Communication equipment and communication method 有权
标题翻译：通信设备和通信方法
公开(公告)号：JP2011119853A
公开(公告)日：2011-06-16
申请号：JP2009273581
申请日：2009-12-01
申请人： Fujitsu Ltd , 富士通株式会社
发明人： NEKOTO KATSUHIKO , KAMEDA AKIHIRO , FUKUDA ISAMU , MOROHASHI ATSUSHI , INOUE TOSHIFUMI , HOSHINO KIYOHISA , FUKUDA NOBUYUKI , FUKUDA KENJI , YASUNO KAZUHIRO
IPC分类号： H04L12/713 , H04L12/70
CPC分类号： H04L45/28 , H04L45/22
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of packet loss in a network containing redundant communication equipment. SOLUTION: If a switching request message is received which requests that communication destination should be changed from first communication equipment to second communication equipment considered as an alternative of the first communication equipment, a changing means for communication changes the communication destination from the first communication equipment to the second communication equipment. A reception means receives reception history showing packets received by the first communication equipment. A retransmission control means determines packets which the first communication equipment does not receive as an object of retransmission, based on a result of comparison between the reception history and transmission history showing packets transmitted to the first communication equipment. A transmission means transmits packets determined as the object of retransmission to the second communication equipment. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了防止在包含冗余通信设备的网络中发生分组丢失。解决方案：如果接收到请求将通信目的地从第一通信设备改变为被认为是第一通信设备的替代的第二通信设备的切换请求消息，则通信改变装置从第一通信设备改变通信目的地通信设备到第二个通信设备。接收装置接收显示由第一通信设备接收的分组的接收历史。基于接收历史和发送到第一通信设备的分组的发送历史的比较结果，重发控制装置确定第一通信设备不作为重传对象的分组。发送装置将确定为重传对象的分组发送到第二通信设备。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2014183562A Encryption communication device, encryption communication method, and encryption communication program 有权
标题翻译：加密通信设备，加密通信方法和加密通信程序
公开(公告)号：JP2014183562A
公开(公告)日：2014-09-29
申请号：JP2013058782
申请日：2013-03-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： FUKUDA ISAMU , SAKABE TETSUTA , KOBAYASHI TOSHIHIRO , FUKUDA NOBUYUKI , YASUNO KAZUHIRO
IPC分类号： H04L9/08 , H04L9/36
CPC分类号： H04L9/0869 , H04L9/0891 , H04L63/0428 , H04L63/061
摘要： PROBLEM TO BE SOLVED: To achieve encryption communication in which the security of data in a packet transmitted in a communication system is secured, and traffic in the communication system is reduced.SOLUTION: An encryption communication device includes: a pattern generating unit that determines whether or not to generate a security association (SA) including a data part where data patterns of data in a processing object packet and data in a sample packet agree as matching data; a key information exchange unit that, if the pattern generating unit determined to generate the SA, transmits a key information exchange packet including the matching data and key data to an opposite device, receives a key information exchange packet including the SA identifier of the SA from the opposite device, and establishes the SA with the opposite device; and a key information unit for storing the matching data, key data, and SA identifier of the SA established by the key information exchange unit.
摘要翻译：要解决的问题：实现其中在通信系统中发送的分组中的数据的安全性得到确保并减少通信系统中的业务的加密通信。解决方案：加密通信设备包括：模式生成单元，确定是否或者不生成包括数据部分的安全关联（SA），其中处理对象分组中的数据的数据模式和样本分组中的数据一致作为匹配数据; 密钥信息交换单元，如果确定生成SA的模式生成单元将包含匹配数据和密钥数据的密钥信息交换包发送到对方装置，则从包含SA的SA标识符的密钥信息交换包接收相反的设备，并建立SA与相反的设备; 以及密钥信息单元，用于存储由密钥信息交换单元建立的SA的匹配数据，密钥数据和SA标识。

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