Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
網路安全 @ INFOR
Search
tewei
October 21, 2014
Technology
0
88
網路安全 @ INFOR
tewei
October 21, 2014
Tweet
Share
More Decks by tewei
See All by tewei
Alcoholism Treatment: A Translational Perspective
tewei
0
190
AI in Medicine @ APMSS 2019
tewei
1
430
Do No Harm Book Report
tewei
0
68
古騰堡革命
tewei
0
110
個人申請
tewei
0
140
Entresoft Program 2015-16
tewei
0
150
Intro to CS Course Outline
tewei
0
64
Deep and Reinforced Learning
tewei
1
120
網站程式設計[1] @ INFOR
tewei
0
120
Other Decks in Technology
See All in Technology
AIエージェントを5分で一気におさらい!AIエージェント「構築」元年に備えよう
yakumo
1
150
迷わない!AI×MCP連携のリファレンスアーキテクチャ完全ガイド
cdataj
0
500
First-Principles-of-Scrum
hiranabe
4
2k
2025-12-27 Claude CodeでPRレビュー対応を効率化する@機械学習社会実装勉強会第54回
nakamasato
4
1.4k
スクラムを一度諦めたチームにアジャイルコーチが入ってどう変化したか / A Team's Second Try at Scrum with an Agile Coach
kaonavi
0
230
さくらのクラウドでのシークレット管理を考える/tamachi.sre#2
fujiwara3
1
140
2026/01/16_実体験から学ぶ 2025年の失敗と対策_Progate Bar
teba_eleven
1
140
業務の煩悩を祓うAI活用術108選 / AI 108 Usages
smartbank
9
22k
Models vs Bounded Contexts for Domain Modularizati...
ewolff
0
180
Cloud WAN MCP Serverから考える新しいネットワーク運用 / 20251228 Masaki Okuda
shift_evolve
PRO
0
150
「違う現場で格闘する二人」——社内コミュニティがつないだトヨタ流アジャイルの実践とその先
shinichitakeuchi
0
350
技術選定、下から見るか?横から見るか?
masakiokuda
0
190
Featured
See All Featured
The innovator’s Mindset - Leading Through an Era of Exponential Change - McGill University 2025
jdejongh
PRO
1
78
Hiding What from Whom? A Critical Review of the History of Programming languages for Music
tomoyanonymous
1
360
Tips & Tricks on How to Get Your First Job In Tech
honzajavorek
0
410
A better future with KSS
kneath
240
18k
Music & Morning Musume
bryan
46
7k
Fashionably flexible responsive web design (full day workshop)
malarkey
408
66k
Discover your Explorer Soul
emna__ayadi
2
1k
HU Berlin: Industrial-Strength Natural Language Processing with spaCy and Prodigy
inesmontani
PRO
0
130
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
508
140k
Dominate Local Search Results - an insider guide to GBP, reviews, and Local SEO
greggifford
PRO
0
34
Everyday Curiosity
cassininazir
0
120
Leading Effective Engineering Teams in the AI Era
addyosmani
9
1.5k
Transcript
網路安全 Alexander Shieh @ INFOR 2014/9/11
今天會講到什麼 • 重新認識網⾴頁、網路 • Cookie, Session, CookieSession • 代碼注⼊入Injection:跨站指令XSS、SQL Injection
• 阻斷服務DDoS • VPN & Proxy • 密碼學Cryptography:DH、RSA、ECC、數位簽章
放輕鬆今天不會有很多實作 抱持著愉悅的⼼心情就好
什麼是網⾴頁 • HTTP Request • Cache • TCP/IP • 下載IG圖⽚片
• 下載FB影⽚片 • Facebook帳號保安
TCP/IP
TCP/IP • Application (HTTP/SSL/FTP…) • Transport(TCP) • Network(IP) • Physical(PPP)
TCP/IP • Application (HTTP/SSL/FTP…) • Transport(TCP) • Network(IP) • Physical(PPP)
TCP/IP • Application (HTTP/SSL/FTP…) • Transport(TCP) • Network(IP) • Physical(PPP)
我現在不想講這個
• Developer Tools • Resources • Frames>Images
• chrome://cache/ • find mp4
! SQL Injection • 隨便打個’或是’ or ‘1’ = ‘1 •
如果加⼀一些其他的東⻄西怎辦www • 不要去打夢駝林會被ban ip
XSS • 撈cookie=>XSRF • ⾃自⼰己盜⾃自⼰己的帳
如何在網路上匿名 Stay Anonymous Image: http://manurevah.com/blah/en/blog/ISP-vs-VPN-vs-Tor CC-BY-NC-SA
原本上網的⽅方式
• 架在網際網路上的私⼈人網路 • 因為Tunnel所以可以換IP(Encrypted, Encapsulation) • IPSec, SSL VPN •
Open VPN VPN
• Image: https://www.torproject.org/about/overview
• Image: https://www.torproject.org/about/overview
• Image: https://www.torproject.org/about/overview Random Circuit Every 10 min
• Image: https://www.torproject.org/about/overview Random Circuit Every 10 min
• Image: https://www.torproject.org/about/overview Random Circuit Every 10 min
Cryptography • Image: http://www.di.ens.fr/~pnguyen/
囧rz
囧rz • Cryptographic Hash Algorithm
囧rz • Cryptographic Hash Algorithm • 對稱式加密演算法
囧rz • Cryptographic Hash Algorithm • 對稱式加密演算法 • AES/DES
囧rz • Cryptographic Hash Algorithm • 對稱式加密演算法 • AES/DES •
⾮非對稱式加密
囧rz • Cryptographic Hash Algorithm • 對稱式加密演算法 • AES/DES •
⾮非對稱式加密 • Diffie-Hellman Key Exchange
囧rz • Cryptographic Hash Algorithm • 對稱式加密演算法 • AES/DES •
⾮非對稱式加密 • Diffie-Hellman Key Exchange • RSA Public Key Cryptosystem
囧rz • Cryptographic Hash Algorithm • 對稱式加密演算法 • AES/DES •
⾮非對稱式加密 • Diffie-Hellman Key Exchange • RSA Public Key Cryptosystem • Elliptic Curve Cryptography
⽣生活中的例⼦子 • TLS/SSL=>HTTPS • ⾃自然⼈人憑證 • http://smartfacts.cr.yp.to/ smartfacts-20130916.pdf • Bitcoin
• http://hitcon.org/2014/ downloads/E1_06_Chris %20Lin%20-%20Bitcoin %20Security.pdf
監聽封包 • 因為 802.11有監聽模式,但在監聽模式不能傳送也不能攔 截,只要未加密過的連線都有可能看到明⽂文 • 主要的兩個技術: • http://en.wikipedia.org/wiki/Promiscuous_mode •
http://en.wikipedia.org/wiki/Monitor_mode
Wireshark
Capture Options