TechnologyThe BestieIntermediate
Cryptography in Modern Trading, a free technology course on Tomo

Cryptography in Modern Trading

Like Duolingo, but for Cryptography in Modern Trading. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

21 levels across 3 sections, about 42 minutes end to end, roughly 8 days at five minutes a day. It moves through Securing the Execution, Privacy and Strategy Protection, and Market Integrity and Future Threats. It assumes you already know the basics.

21 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Cipher the Cat, the guide who teaches the Cryptography in Modern Trading course
Cryptography in Modern Trading
with Cipher the Cat
21
Levels
3
Sections
5
Min/day
What you'll learn

Key ideas in Cryptography in Modern Trading

  • EdDSA speed in high-frequency trading
  • Deterministic signatures and idempotency
  • EdDSA deterministic nonces
  • Standard ECDSA random nonces
  • ECDSA legacy support
  • Consistent signatures and idempotency
  • Choosing between ECDSA and EdDSA
  • Deterministic signatures for auditing
  • Batch verification allows checking multiple signatures at once faster than one-by-one
  • A nonce is a counter that ensures each transaction from an account is unique
  • Choosing between ECDSA and EdDSA based on the specific needs of a trading environment
  • Ed25519 is specifically designed to support efficient mathematical batching
  • Reusing a nonce with a higher gas price allows you to 'cancel' or 'speed up' a trade
  • The efficiency gains of batch verification in high-throughput transaction processing
  • The value of deterministic signatures for auditing and debugging trading systems
  • BIP44 defines a standard path structure for multi-account wallets
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Cryptography in Modern Trading the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Choosing Your Signing Strategy

Why are deterministic signatures so helpful when you are auditing a trading system's logs?

Get it right to open this lesson and 20 more in the app.

Course map

Where Cryptography in Modern Trading takes you

Move beyond basic wallets to understand how advanced cryptographic primitives secure high-frequency trades, protect institutional privacy, and prevent market manipulation.

  1. 1

    Securing the Execution

    • Advanced Signing and Verification
    • Institutional Custody and Threshold Schemes
  2. 2

    Privacy and Strategy Protection

    • Zero-Knowledge Proofs for Trade Privacy
    • Commitment Schemes and Fair Auctions
    • Dark Pools and Confidential Computing
  3. 3

    Market Integrity and Future Threats

    • Preventing Manipulation with VDFs
    • Post-Quantum Readiness in Finance

3 sections · 7 units · 21 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
The Bestie

Cryptography in Modern Trading is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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Start Cryptography in Modern Trading today.

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