暗号通信システム及び暗号通信装置

Title:

暗号通信システム及び暗号通信装置

Document Type and Number:

Japanese Patent JP5101124

Kind Code:

B2

Abstract:

To reinforce the security of communication data about multicast communication in a multiaccess network.

In this encryption communication system 1 for encrypting communication data between encryption communication devices during multicast distribution on a multiaccess network 2 in which a plurality of encryption communication devices 3 can simultaneously connect and communicate with each other, the encryption communication device has: a multicast key table 15 storing a multicast key; an encryption processing part 19 for encrypting communication data on the basis of the multicast key and transmitting the encrypted communication data to the opposite side encryption communication device when detecting the communication data to the opposite side encryption communication device; and a decryption processing part 20 for decrypting communication data on the basis of the multicast key when the opposite side encryption communication device detects the encrypted communication data.

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Inventors:

Tsutomu Konno
Kanji Tanabeya
Toshikazu Yasue

Application Number:

JP2007033787A

Publication Date:

December 19, 2012

Filing Date:

February 14, 2007

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