For field use
Visual Guide · Digital

Cryptanalysis

The enemy protects information; you break the protection into intelligence.

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Why it matters
The enemy protects information you need
Break protection to expose the message
Patience, pattern and precision win
Turn ciphertext into actionable intelligence

Acquire

  • Intercept or recover ciphertext
  • Collect related artifacts and context
  • Capture protocol and traffic metadata

Understand

  • Identify the cipher and protocol
  • Map the operational context
  • Find the weakest link to attack

Model

  • Build a statistical model of the system
  • Map relationships in the data
  • Predict where structure leaks

Cipher Classes

  • Separate substitution from transposition
  • Distinguish symmetric from asymmetric keys
  • Tell block ciphers from stream ciphers

Integrity Types

  • Recognize hashes and MACs for integrity
  • Identify signatures for authenticity
  • Note modes like CTR and GCM

Attack Toolkit

  • Exploit frequency and statistical bias
  • Leverage known or chosen plaintext
  • Exhaust small keyspaces by brute force

Side Channels

  • Extract leaks from timing and power
  • Exploit cache and EM emissions
  • Attack flawed handshakes and key exchange

Decrypt & Exploit

  • Recover key material with confidence
  • Reconstruct plaintext reliably
  • Translate plaintext into intelligence
01

Acquire

Intercept ciphertext and artifacts

02

Model

Build a statistical system model

03

Attack

Strike the weakest link

04

Exploit

Turn plaintext into intelligence

Every cipher leaks; patience and pattern find the seam.

Digital