Cryptography
23 practice items · needed by 5 roles
Easy 11Medium 5Hard 7
Practice questions
- Comparing secrets with ===hard
- Comparing secret tokens safelyhard
- Keys and addresseseasy
- What links one block to the nexteasy
- Sharing a seed phraseeasy
- Properties of keccak256easy
- EIP-712 domain separatormedium
- Approving with a signaturemedium
- Unchecked ecrecovermedium
- Chain ID in transactionsmedium
- Using a signature as a noncehard
- Domain separator after a chain splithard
- Commit-reveal that can be copiedhard
- Why ZK rollups still post datahard
- Comparing a message authentication codehard
- What does SHA-256 do?easy
- Symmetric or asymmetric?easy
- Which key encrypts a secret message?easy
- How a digital signature is createdeasy
- Why passwords are saltedeasy
- What HTTPS protectseasy
- A hash that no longer matcheseasy
- Why does a browser trust a certificate?medium