Title:
暗号化パケット転送方法、中継装置、そのプログラムおよび通信システム
Document Type and Number:
Japanese Patent JP4892404
Kind Code:
B2
Abstract:
To check the contents of an encrypted packet by a repeater in end-to-end encrypted communication.
An SIP server 3 instructs a repeater 4 for repeating a packet between an originating side terminal 1A and a terminating side terminal 1B to establish a security pass between the originating side terminal 1A and the incoming side terminal 1B. Then the security pass is established between the originating side terminal 1A and the terminating side terminal 1B. Since the repeater 4 can decrypt an encrypted packet once by using information concerned with SA which is exchanged between the repeater 4 and the originating side terminal 1A, the security of the packet can be checked.
COPYRIGHT: (C)2009,JPO&INPIT
More Like This:
Inventors:
Tamura Fujitsuhiko
Yasuyuki Ichikawa
Juichi Bessho
Yasushi Takagi
Yasuyuki Ichikawa
Juichi Bessho
Yasushi Takagi
Application Number:
JP2007130238A
Publication Date:
March 07, 2012
Filing Date:
May 16, 2007
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L9/08; G09C1/00; H04L12/46; H04L12/66; H04L12/70
Domestic Patent References:
| JP2005346556A | ||||
| JP200743598A | ||||
| JP63104540A |
Other References:
D. McGrew, E. Systems,“Datagram Transport Layer Security (DTLS) Extension to Establish Keys for Secure Real-time Transport Protocol (SRTP)”,Network Working Group Internet-Draft,[online],2007年 3月10日,draft-ietf-avt-dtls-srtp-00.txt,[retrieved on 2011-12-01]. Retrieved from the Internet,URL,
JOACHIM ORRBLAD,“Alternatives to MIKEY/SRTP to secure VoIP”,KTH Microelectronics and Information Technology, Master of Science Thesis,[online],2005年 3月,p.20-27,[retrieved on 2011-12-01]. Retrieved from the Internet,URL,
加藤淳也,水野伸太郎,川島正久,“SIPを用いた移動対応VPN通信方式”,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2007年 9月13日,Vol.107,No.222,p.13-18
JOACHIM ORRBLAD,“Alternatives to MIKEY/SRTP to secure VoIP”,KTH Microelectronics and Information Technology, Master of Science Thesis,[online],2005年 3月,p.20-27,[retrieved on 2011-12-01]. Retrieved from the Internet,URL,
加藤淳也,水野伸太郎,川島正久,“SIPを用いた移動対応VPN通信方式”,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2007年 9月13日,Vol.107,No.222,p.13-18
Attorney, Agent or Firm:
Isono Dozo
Megumi Oishi
Shinji Nakamura
Megumi Oishi
Shinji Nakamura