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1 HTML5 Web 1,a) 1,b) , HTML5 JavaScript Web Web Web Web Web Web Web Web HTML5 JavaScript Proposal and Evaluation of Virtual Web Browser by Using HTML5 Tomokazu Hayakawa 1,a) Teruo Hikita 1,b) Received: May 29, 2015, Accepted: September 2, 2015 Abstract: This paper proposes a method of a virtual Web browser that uses HTML5 and JavaScript-related technologies only, which aims to provide users a way of safer Web-browsing environment that enables users to browse malicious Web pages without any harm. The virtual Web browser makes malicious Web pages harmless by transparently transforming Web pages requested by users into equivalent images. We evaluated bandwidths and response times of the virtual Web browser, and results show that the virtual Web browser realizes a safer Web-browing environment without sacrificing user experience. We conclude that the virtual Web browser is a great help to protect users from malicious Web pages. Keywords: Web browser, HTML5, JavaScript, security, proxy WWW World Wide Web *1 Web Web Web [1] [2] 1 School of Science and Technology, Meiji University, Kawasaki, Kanagawa , Japan a) t haya@cs.meiji.ac.jp b) hikita@cs.meiji.ac.jp Web (1) Web (2) Java Applet Flash PDF (3) (4) OS Operating System [3], [4] *1 c 2016 Information Processing Society of Japan 573

2 (1) *2 (2) *3 Web Web HTML5 [8] Web [9], [10] 2 (1) HTTP (2) Web (3) HTTP Web 3 HTML5 HTML5 HTML5 JavaScript 4 Web Web *2 *3 OS Windows XP Internet Explorer 6 [5], [6], [7] 2. Web 2.1 Web Web (1) (2) (3) (1) Web (2) Web Web (3) Web Web Web Web 2.2 Web (1) Web (2) (3) (1) (2) (3) (4) (5) Cookie Local Storage Web c 2016 Information Processing Society of Japan 574

3 2.3 (1) HTTP (2) HTTP HTTP (3) HTTP Web Web Web (1) Web (2) JavaScript <canvas> <video> Web Web PC Web 1 Web Web Fig. 1 Screenshot of virtual web browser that shows IPSJ (Information Processing Society of Japan) web page. 2.5 Web 1 Web Firefox[11] Web 1 URL URL 3. Web 3.1 HTTP HTTP HTTP Web HTML5 Web HTML5 OS 2 (1) 2 DMZ DeMilitarized Zone 1 (2) DMZ (3) PC Web DMZ c 2016 Information Processing Society of Japan 575

4 2 Web Fig. 2 Network structure of virtual web browser. DMZ DMZ PAC Proxy Auto Configuration [12] PAC (1) URL (2) URL Web (3) URL Web *4 Web 3.2 Web (1) HTTP URL (2) HTTP [13] *4 PAC 3 Web Fig. 3 Behavioral overview of virtual web browser. 4 Web Web Fig. 4 Sequence diagram of virtual web browser (when browsing web pages). (3) HTTP (4) (5) HTML5 (6) WebSocket HTTP (7) HTTP (8) HTTP (9) HTTP HTTP (10) HTTP c 2016 Information Processing Society of Japan 576

5 5 Web Fig. 5 Sequence diagram of virtual web browser (when events fired). (11) (12) Base64 [14] (13) Base64 <canvas> HTTP WebSocket WebSocket HTTP Web URL URL URL WebSocket HTTP *5 JavaScript onresize onscroll onmouseup onmousedown onmousemove onclick ondblclick onkeyup onkeydown onkeypress WebSocket *5 Ajax COMET WebSocket Linux API Application Programming Interface setuid(2) setgid(2) chroot(2) API Unix OS Unix OS PAC 3.1 Web HTTPS HTTPS HTTP over SSL/TLS MITM Man-In-The-Middle * JavaScript 4. Web JavaScript JavaScript Web jquery [15] JavaScript PhantomJS [16] JavaScript WebKit [17] Headless *7 *6 *7 GUI GUI c 2016 Information Processing Society of Japan 577

6 1 Web Table 1 Software for virtual web browser implementation. jquery PhantomJS 2.0 Node.js Apache HTTP Server CentOS 7.1 OS 2 Web HTTP 1.1 Table 2 HTTP 1.1 compression formats supported by modern web browsers. Web 1 gzip compress deflate Internet Explorer 11.0 Firefox 38.0 Chrome 43.0 Opera Safari JVN Japan Vulnerability Notes Windows [21] HTTP 1.1 [19] deflate gzip deflate deflate HTTP 1.1 WebSocket [20] 6 Web HTML5 Fig. 6 Skeleton of virtual web browser (HTML5). Node.js [18] JavaScript Apache HTTP Server HTTP/WebSocket 4.2 Web 6 HTML <canvas> Web <script> WebSocket WebSocket 4.4 PhantomJS PhantomJS Qt [22] Qt WebKit PNG JPG PNG JPG PNG>JPG JPG Java Applet PDF Flash Web 5. 2 Web [23] Web Web c 2016 Information Processing Society of Japan 578

7 CSS JavaScript Web Web 3 Table 3 Web 10 Top 10 web sites ordered by traffic volume. Web URL 1 Google.com 2 Facebook.com 3 Youtube.com 4 Yahoo.com 5 Baidu.com 6 Amazon.com 7 Wikipedia.org 8 Taobao.com 9 Qq.com 10 Twitter.com c Alexa Internet, Inc. 4 deflate Base64 CPU Web Web * 1 3 Table 4 Image sizes (bytes) of top pages shown in Table 3. JPEG JPEG Base64 JPEG Base64 Deflate PNG PNG Base64 PNG Base64 Deflate Google.com 282,949 22,910 30,548 17,986 36,669 48,892 35,156 Facebook.com 1,841,983 86, ,728 68, , , ,507 Youtube.com 2,574, , , ,638 1,384,083 1,845,446 1,372,784 Yahoo.com 1,571, , , ,917 1,132,177 1,504,048 1,113,362 Baidu.com 422,609 23,152 30,872 14,281 27,435 36,580 23,946 Amazon.com 5,582, , , ,707 2,265,560 3,020,748 2,253,555 Wikipedia.org 122, , , , , , ,862 Taobao.com 2,427, , , , ,262 1,220, ,249 Qq.com 3,620, ,987 1,218, ,511 3,235,599 4,314,134 3,215,905 Twitter.com 1,448, , ,119 86, , , ,572 1 Web 5 3 Table 5 Response times (msec) for browsing top pages shown in Table 3. Web * 1 *2 a *3 b *4 b a JPEG PNG Google.com Facebook.com ,376 1, Youtube.com ,257 1, Yahoo.com ,819 1, Baidu.com Amazon.com ,087 2, Wikipedia.org Taobao.com ,546 2, Qq.com ,222 3, Twitter.com Web CSS JavaScript 2 Web 3 Web 4 Web c 2016 Information Processing Society of Japan 579

8 5 (1) 600 (2) 3 (3) 3 Web 5.3 Web 6.2 PC [24] 1 2 Docker [25] Web 1 OS OS HTML5 Web 6.2 [26] PC Web *8 6.3 Palanques [27] Secure Cloud Browser Web PC Web JRE Java Runtime Environment HTML5 Grier [28] OP web browser Web JRE HTML5 Wang [29] SafeFox 7. Web Web PC Web 1 1 Web <canvas> 2 Web Workers [30] *8 Web c 2016 Information Processing Society of Japan 580

9 3 Web JSPS [1] [ ] [2] alert 01.html [3] [ ] [4] ipa.go.jp/security/virus/zda.html [5] Symantec Corp.: Windows7 Internet Explorer6 Symantec Corp virtualized internet explorer6 for windows [6] Windows XP data migration/ [7] Windows XP security.sojitz-sys.com/virtualization/news/pdf/ pdf [8] W3C: HTML5, W3C (online), available from (accessed ). [9] Hayakawa, T. and Hikita, T.: Proposal for Virtual Web Browser by Using HTML5, Proc. 5th FTRA International Conference on Computer Science and its Applications (CSA-13 ), Danang, pp (2013). [10] HTML5 Web pp (2013). [11] Mozilla Foundation: Mozilla Firefox, Mozilla Foundation (online), available from (accessed ). [12] Microsoft: Chapter 26 Using Automatic Configuration, Automatic Proxy, and Automatic Detection, Microsoft (online), available from library/dd (accessed ). [13] Franks, J., Hallam-Baker, P., Hostetler, J., Lawrence, S., Leach, P., Luotonen, A. and Stewart, L.: HTTP Authentication: Basic and Digest Access Authentication, The Internet Society (online), available from tools.ietf.org/html/rfc2617 (accessed ). [14] Josefsson, S.: The Base16, Base32, and Base64 Data Encodings, The Internet Society (online), available from (accessed ). [15] jquery Foundation: jquery: The Write Less, Do More, JavaScript Library, jquery Foundation (online), available from (accessed ). [16] Hidayat, A.: PhantomJS: Headless WebKit with JavaScript API, PhantomJS.org (online), available from (accessed ). [17] WebKit Team: The WebKit Open Source Project, WebKit Team (online), available from org/ (accessed ). [18] Joyent, Inc.: node.js, Joyent, Inc. (online), available from (accessed ). [19] Fielding, R., Gettys, J., Mogul, J., Frystyk, H., Masinter, L., Leach, P. and Berners-Lee, T.: Hypertext Transfer Protocol HTTP/1.1, The Internet Engineering Task Force (IETF) (online), available from org/rfc/rfc2616.txt (accessed ). [20] Yoshino, T. and Google, Inc.: Compression Extensions for WebSocket draft-ietf-hybi-permessage-compression- 21, The Internet Engineering Task Force (IETF) (online), available from (accessed ). [21] JPCERT/CC and IPA JVN# Safari JPCERT/CC and IPA jvn.jp/jp/jvn /index.html [22] Digia Plc: Qt Project, Digia Plc (online), available from (accessed ). [23] Alexa, Inc.: Alexa Top 500 Global Sites, Alexa, Inc. (online), available from (accessed ). [24] Microsoft Microsoft Security Bulletin MS JPEG (GDI+) (833987) Microsoft bulletin/ms [25] Docker, Inc.: Docker Build, Ship, and Run Any App, Anywhere, Docker, Inc. (online), available from (accessed ). [26] [27] Palanques, M., Dipietro, R., del Ojo, C., Malet, M., Marino, M. and Felguera, T.: Secure Cloud Browser: Model and Architecture to Support Secure WEB Navigation, Proc. 31st IEEE Symposium on Reliable Distributed Systems (SRDS), Irvine, pp (2012). [28] Grier, C., Tang, S. and King, S.: Secure Web Browsing with the OP Web Browser, Proc. IEEE Symposium on Security and Privacy, Oakland, pp (2008). [29] Wang, J., Huang, Y. and Ghosh, A.: SafeFox: A Safe Lightweight Virtual Browsing Environment, Proc. 43rd Hawaii International Conference on System Sciences (HICSS), Honolulu, pp.1 10 (2010). [30] W3C: Web Workers, W3C (online), available from (accessed ). c 2016 Information Processing Society of Japan 581

10 c 2016 Information Processing Society of Japan 582

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