security - cs50 cdn
TRANSCRIPT
Security
Privacy
• physicalsecurity• files• browserhistory• cookies,sessions
dell.com
apple.com
GET / HTTP/1.1Host: example.com
HTTP/1.1 200 OKSet-Cookie: session=29823bf3-075a-433a-8754-707d05c418ab
Authentication
• passwords• length,post-itnotes,easytoguess• hashedserver-sideornot• resetting(emailedinclear?)• usingonothersites• changevsnotchange
1. 1234562. 1234567893. qwerty4. 123456785. 1111116. 12345678907. 12345678. password9. 12312310. 987654321
keepersecurity.com
officedepot.com
• two-factorauthentication• keyfob,app,sms
• [emphasizetradeoffs]
rsa.com
google.com
apple.com
NetworkSecurity
• networksecurity• wifi WEP,WPA• xfinity injection• firewall• vpn
quora.com
Encryption
• encryption• symmetric:caesar [discusskeysize]• public-key:RSA
Phishing
Malware
• phishing• virus,worms,malware,botnets
Trust
Security