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Cryptography Basics
- Cryptography is the study of secret messages, encoding, and decoding.
- It involves using functions to transform input data into a different output.
One-Way Functions and Hashing
- One-way functions are easy to compute in one direction but hard to reverse.
- Hashing functions are an example, turning input into a fixed-size number.
Hashing for Passwords
- Matt Levine explains how hashing is used for password security.
- Hashing passwords protects them even if a password list is stolen.