4.2 Security Infrastructure
4.2.1 Blockchain-Based Security Architecture
Solana Blockchain Security Features
Proof of History (PoH) consensus mechanism
Cryptographic timestamp verification
Distributed validation networks
Immutable transaction records
Smart Contract Security
Formal verification protocols
Multi-signature transaction requirements
Automated vulnerability scanning
Continuous security auditing
4.2.2 Cryptographic Protection Layers
Encryption Frameworks
Data-at-Rest Encryption
AES-256 encryption standard
Quantum-resistant encryption protocols
Hardware security module integration
Data-in-Transit Protection
TLS 1.3 secure communication
End-to-end encrypted channels
Perfect forward secrecy mechanisms
Key Management System
Decentralized key generation
Multi-factor authentication
Hierarchical deterministic wallet structures
Secure key recovery mechanisms
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