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1 21 Fault-Toleranted Authentication Data Distribution Protocol for Autonomous Distributed Networks

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3 Abstract Fault-Toleranted Authentication Data Distribution Protocol for Autonomous Distributed Networks Nogura, Hirokazu In recent years, distributed autonomous networks which have no server and autonomously work attract attention. Distributed autonomous networks achieve many services at low cost. However, distributed autonomous networks need to search nodes which have authentication data to authenticate nodes. Nishida et al proposed a method to search nodes in distributed autonomous networks. The existed method which doesn t use broadcast is able to search nodes without burdening network load. However, the existed method is unable to authenticate a number of nodes when a part of nodes are unable to use. In this paper, the proposed method extends the existed method and configures circuit nodes. In this paper, the proposed method extends the existed method and configures circuit nodes. The proposed method is able to authenticate nodes when a part of nodes are unable to use. key words distributed autonomous networks,low cost,configure circuit nodes ii

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5 23 iv

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8 1 [1] VPN 1

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11 LAN WEP(Wired Equivalent Privacy)[2] 4

12 WPA(Wi-Fi Protected Access)[3] IEEE802.1X[4] RA- DIUS(RemoteAuthentication Dial In User Service)[5] 2.3 RADIUS RADIUS 5

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14 IP N 1 N 2 7

15 N 1 0 n N 1 1 n 0 : 1 0 : 2 0 : n 0 : 1 0 : 1 : 1 0 : 1 : 2 0 : 1 : : 0 : 0 N 3 A 0 : 1 N

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17 : 1 : 3 : 2 : 5 : 3 0 : 1 : 3 : 1 : 2 : : 1 : 3 0 : 1 : 3 : 2 : 5 : 3 0 : 1 : 3 : 2 : 5 0 : 1 : 3 : 2 0 : 1 : : 1 : 3 : 1 : 2 : 2 0 : 1 : 3 : 1 : 2 0 : 1 : 3 : 1 0 : 1 : E max E x 0 ID ES ES A ES B ES C ES ID ES IP 4 ES A ES B ES C ES ID ID ES IP IP N ID N IP IP CA A 10

18 4.2 CA ID 11

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20 ES ID ID 2. ES IP IP 3. ES A ID 4. ES B 2 ID 5. ES C ES A 6. ES C ES ES ES ES 1. ES 2. E max E x E max >E x E max =E x 3. ES B ID 4. E x 1 5. ES ES ID N ID 6. ES ES IP N IP 7. ES ES ID ID 8. ES ES IP IP 13

21 ES C 14

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23 N ID 2. N A 3. ES ID CA A CA ID CA A ID 1. CA A ID 2. CA ID 3. CA ID 4. CA ID 1. CA A ID 2. CA ID 3. CA A 4. 16

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25 E max

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30 [1] pp [2] J. R. Walker, Unsafe at any key size; An analysis of the WEP encapsulation, IEEE Technical Report, IEEE /362, [3] W. A. Arbaugh, N. Shankar, Y.C.J Wan, Your Wireless Network has No Clothes, Department of Computer Science, University of Maryland, [4] A. Bernard, D. Simon, IEEE security and 802.1X, IEEE /034r1, [5] C. Rigney, A. C. Rubens, W. A. Simpson, S. Willens, Remote Authentication Dial In User Service (RADIUS), Request for Comments 2865, [6] ( ) - VPN. Available at: Acessed December 18, [7] T.Tsuji T Nakahara A.Shimizu A One-Time Password Authentication Method IEICE Technical Report Vol.105 No.529 pp [8] LAN Vol.107 No.230 OIS pp

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