Masterclass Overview

The Seed Phrase Entropy & Mnemonic Recovery Workshop is a practical 3-hour educational laboratory where attendees explore how cryptographic pseudo-randomness translates into human-readable 12- and 24-word recovery phrases.

Participants learn the mathematical underpinnings of BIP-39 wordlists, checksum validation algorithms, physical backup resistance (fire, flood, corrosion), and how BIP-39 passphrases (the “13th or 25th word”) create distinct cryptographic accounts without revealing the primary master key.

Core Topics Covered

  1. True vs Pseudo-Random Number Generation: Understanding dice rolls, hardware TRNGs, and OS-level /dev/urandom entropy collection.
  2. Checksum Calculation Mechanics: How SHA-256 hash prefixes determine the final word index of a seed phrase.
  3. Passphrase Extension (BIP-39 Salts): The cryptographic role of HMAC-SHA512 iterations and creating plausible deniability vaults.
  4. Physical Metal Backup Standards: Evaluating 304/316 stainless steel vs titanium punch cards against extreme heat and acidic environments.
  5. Air-Gapped Seed Verification: Practicing seed restoration drills in completely isolated operating systems without live network connectivity.

Workshop Specifications

  • Format: Interactive laboratory combining whiteboard cryptographic theory with hands-on offline exercises.
  • Duration: 3 hours.
  • Fee Structure: $450 per individual participant or $1,100 for an engineering team cohort (up to 5 engineers).
  • Delivery: On-site in Bangkok or via private interactive video stream.
  • To Register: Visit our Contact Page to request upcoming workshop dates.