Chapter 4 of 10 · Cryptography 40%

🔍 Malware hides its C2 domain behind a one-byte XOR. 256 guesses and it spills. Can you read what the author swore nobody could?

The one-time pad is unbreakable, until the key repeats. Then 256 guesses or xortool peel it open. Learn single-byte brute force, key-length by Hamming distance, and crib dragging, the exact moves of malware triage. 🧩

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Cryptography

🔍 Malware hides its C2 domain behind a one-byte XOR. 256 guesses and it spills. Can you read what the author swore nobody could?

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Course Chapters

Encoding and encryption

Substitution ciphers

The Vigenere cipher

XOR cryptanalysis

Hash functions and collisions

Block cipher modes

RSA fundamentals

RSA attacks

Key exchange and randomness

Cryptography in the wild