Presentation slides, demos and useful resources from my various public speaking engagements on blockchain.

Blockchain Development Workshop | Wallets, Tokens & Privacy (zk-SNARKS)

Hands-on workshop with a focus on programming blockchain using solidity. Topics working with multi-signature wallets, writing secure contracts using 3rd party libraries OpenZeppelin, Tokens (fungible and non-fungible), writing contract following EIP20 token standard and sharing tokens to EOA and contracts. Privacy and role of zero-knowledge proofs to not reveal the sensitive data to the verifier. Creating a proof (you are over-age-of-21) using ZoKrates and deploy the verification of age as a contract on Ethereum blockchain. Verifier will not know your date of birth, but still able to verify that you are over the 21 years old.

Code | Slides (PDF) | SlideShare

Labs include:

1. Working with Multi Signature Wallet
2. Working with EIP20 Tokens
3. zk-SNARKs in Ethereum

Blockchain Development 101

Hands-on workshop covers:

• Cryptography 101 (Hashing,Signing, Encryption, PKI etc.)
• Ethereum Externally Owned Accounts (Private/Public Keys, Account Address)
• Understanding Ethereum Transactions
• Writing Smart Contracts in Solidity

Code | Slides (PDF) | SlideShare