Web Security (Capture the Flag) - University of California ...

Web Security (Capture the Flag)

Discussion 2/3/21 Slides from CSE127, sp20

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Logistics:

PA4 Login credentials are on Gradescope Early Turn-in is on Tuesday 2/9 Final Deadline is on Friday 2/12

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Topics Explored

? Web Security

HTTP/HTTPS

? GET, POST, etc.

JavaScript injection

? Base64 encoding ? SQL injection

Communicating on the World Wide Web

Language of choice: HTTP/HTTPS

Hypertext Transfer Protocol (OSI Application Layer)

HTTPS = HTTP + TLS/SSL (encryption)

Common HTTP Methods

? GET

used to request a resource (should not alter state of server)

? POST used to send data to the server.

? PUT

request data be placed under specified URI

? DELETE delete resource at URI



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