Key Management Strategies

Option 1: Password-Derived Keys

• User provides password

• Key derived using PBKDF2

• Salt stored with encrypted file

• User must remember password

Option 2: Wallet-Based Keys

• Key derived from Solana wallet signature

• Deterministic: same wallet = same key

• No password to remember

• Requires wallet connection

Option 3: Hybrid Approach

• Master key encrypted with password

• Master key also encrypted with wallet signature

• User can access with either method

• Best of both worlds

2. Zero-Knowledge Proof System

Proof Types

Schema Validation Proof

• Proves data conforms to a specific schema

• Without revealing the actual data

• Use case: Prove KYC compliance without exposing documents

Size Range Proof

• Proves file size is within specified bounds

• Without revealing exact size

• Use case: Prove dataset is "large enough" for ML training

Timestamp Proof

• Proves data existed before a certain date

• Without revealing creation date

• Use case: Prove prior art for patents

Custom Proofs

• Extensible framework for domain-specific proofs

• Developers can create custom circuits

• Use case: Industry-specific compliance