Elementary Track 06
✍️
"Proving I Sent This"
How can you make a "signature" that's mathematically impossible to forge — without a bank?
Digital signatures are blockchain's core mechanism for proving identity.
What you'll learn
- → How ECDSA elliptic curve cryptography generates private/public key pairs
- → The sign-with-private-key, verify-with-public-key process — hands-on
- → How Ethereum addresses are derived from public keys, and the role of seed phrases
🔑
Private Key
Keep secret. Used to generate signatures. Never share.
🌐
Public Key
Share with anyone. Used to verify signatures.
✅
Signature
Created with your private key. Anyone can verify with your public key.
💡 Lose your signing key and you permanently lose access to your assets. The 12–24 word seed phrase is the master key that regenerates your private key.