23 Research of the authentication method on the two dimensional code 1145111 2012 2 13
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Abstract Research of the authentication method on the two dimensional code Karita Koichiro Recently, the two dimensional code is widly used for goods management, advertising media, traceability, etc. In two dimensional code use with a personal digital assistant, the user who uses forms about 70 percent of personal digital assistant users. In the electronic ticket service, the two dimensional code is distributed to the user instead of the ticket. The two dimensional code in an electronic ticket service may be sniffing. In order to prevent tapping, when introducing an authentication server, it induces cost to introduction and management of a server. In this paper, Wd proposes the system which does authentication between a user terminal and a two dimensional code, and the information addition system to the two dimensional code were proposed at the time of the user authentication in a two dimensional code. As evaluation, we did comparison verification of a proposal system and the existing system. In the verification result, the proposal system realized authentication at low cost from the existing system. The kind of two dimensional code which can be used for the existing service has been extended. key words The two dimensional code, Low cost, Information addition ii
1 1 2 2 2.1................ 2 2.2 QR.................................. 3 2.2.1 QR........................... 4 2.2.2............................. 4 2.2.3............................... 5 2.2.4............................. 7 3 8 3.1..................... 8 3.2........................... 8 4 10 4.1........................ 10 4.1.1................................ 10 4.1.2............................... 10 4.1.3.......................... 11 4.1.4.................... 11 4.2....................... 12 4.2.1............................. 12 4.2.2........................... 14 iii
5 15 5.1............................. 15 5.2........................... 16 5.2.1 SQRC................................. 16 5.2.2........................... 16 5.2.3...................... 17 5.2.4.................... 18 6 20 21 22 iv
2.1................... 3 2.2 QR................................... 4 2.3 QR.............................. 7 3.1....................... 9 4.1............................ 11 4.2........................ 12 4.3......................... 13 4.4................................. 13 5.1.............................. 15 5.2 QR..................... 17 5.3.......................... 18 5.4............................ 19 v
2.1............................ 3 2.2......................... 6 vi
1 POS(Point of Sale(s) ) QR 7 [1] QR Web Web QR QR QR QR Web QR QR 1
2 QR 2.1 [2] PC Web Web PC PC 2
2.2 QR 2.1 2.1 7089 4296 2953 1817 2.2 QR QR 2 [3] QR 2.1 QR 2.1 360 30 QR 1 2 2 2 QR 3
2.2 QR 2.2 QR 2.2.1 QR QR QR 1 40 1 21 21 1 4 QR 2.2 2.2.2 3 7 7 5 4
2.2 QR 5 3 3 1:1:3:1:1 3 1 4 1 6 6 5 5 3 3 1 2.2.3 7 5
2.2 QR 2.2 L M Q H 7 15 25 30 6 3 3 6 2 6 12 18 BCH 2 1 15 2 8 7 2 3 5 BCH 10 1 1 Reed-Solomon L M Q H 4 2.2 6
2.2 QR 2.3 QR 2.2.4 QR BCH Reed-Solomon 30 QR 7
3 [4] 3.1 Web PC ID ID 3.1 Web 3.2 8
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4.1 4.1.3 4.1 1. x 2. a x y 3. x f(x) 4. y f(x) 5. 4.1 4.1.4 4.2 1. y f(x) 2. y z 3. z f(z) 4. f(x) f(z) 11
4.2 5. z 4.2 4.2 4.2.1 4.5 1. 2 n n 4.4 2 1 4 2bit 2 2 4bit 16 12
4.2 2. 2 3. 4. 1 0 5. 6. 4.3 4.4 13
4.2 4.2.2 1. 2. 3. 1 0 4. 2 14
5 3 SQRC 5.1 3 5.1 5.1 15
5.2 5.2 SQRC 5.2.1 SQRC SQRC QR [5] QR QR SQRC 5.2.2 QR QR 1 40 21 21 16
5.2 QR 1 4bit 144 144 QR 1 bit QR 1 10 QR 100 QR bit 21 5bit 10bit 16bit bit 1bit 0.63bit 5.2 QR 5.2.3 SQRC 1 10 QR 17
5.2 256bit SQRC 5.3 5.3 SQRC QR 512bit SQRC 256bit QR 5.2.4 SQRC 5.4 1bit 0.63bit QR QR 18
5.2 QR QR 5.4 19
6 QR 20
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[1] NTT NTT No.43 QR http://www.nttdocomo.co.jp- /binary/pdf/info/news release/report/060331.pdf 2009/06/16. [2] http://www.fighters.co.jp/ticket/order/(2011/12/02) [3] JIS QR JIS 1999. [4] Japan Patent Kokai 2009-124311 2009. [5] SQRC 2 http://www.denso-wave.com/ja/adcd/product/qrcode/sqrc/ 2012/01/15 22