Title:
移動体ノードの高速かつ安全な接続性
Document Type and Number:
Japanese Patent JP2007533278
Kind Code:
A
Abstract:
A method of establishing a secure communication channel between two nodes in a wireless communications network using a private public key system is disclosed. Each node has a unique certificate used to certificate communications from that node, and the certificates are stored on a trusted third party (TTP) device. The initiating node (A) sends a request for communication with a receiving node (B) to the TTP. The TTP responds with a message for A to forward to B. The message includes the certificate of A encrypted such that only B can decrypt the part of the message containing the certificate of A and preferably also includes the certificate of B encrypted such that only A can decrypt the message containing the certificate of B after B has decrypted the certificate of A. As there is no need for the receiving node (B) to communicate directly with the TTP, the number of messages required in order to establish secure communication is reduced. Preferably the method is used to establish a symmetric session key, KAB.
Inventors:
Seyed Tabatabaiane
Application Number:
JP2007508957A
Publication Date:
November 15, 2007
Filing Date:
April 12, 2005
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04L9/08; H04L9/32; H04L29/06
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Kawabata Junichi
Mitsuo Tanaka
Kawabata Junichi