Security & Privacy

GhostWire is built with security and privacy as core principles. This page details the security architecture, features, and best practices.

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Encryption

• End-to-End Encryption: All messages are encrypted using industry-standard cryptography (AES-256-GCM, X25519, HMAC-SHA256).
• Perfect Forward Secrecy: Ephemeral keys and session rotation.
• Hybrid Crypto: Support for post-quantum algorithms (planned).

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Key Management

• Ed25519/X25519: For identity and session keys.
• Ephemeral Identities: Temporary keys for privacy.
• Key Rotation: Automated and manual rotation supported.
• Secure Storage: Keys stored encrypted on disk or in secure enclaves.

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Trust & Defense Modules

• Sybil Defense: Prevents fake node attacks using reputation, proof-of-work, and social trust.
• Quotas: Rate limits to prevent spam and abuse.
• Blacklists: Block malicious nodes or addresses.
• Disaster Triggers: Emergency wipe, panic button, and rapid shutdown.
• Reputation: Nodes earn trust over time; bad actors are penalized.
• Federation: Multiple networks can interconnect with trust boundaries.
• Traffic Obfuscation: Cover traffic, timing randomization, and packet padding to resist surveillance.

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Threat Model

• Adversaries: Censors, eavesdroppers, Sybil attackers, spammers, malicious insiders.
• Goals: Confidentiality, integrity, availability, plausible deniability.
• Mitigations: Strong crypto, modular trust, rapid response to threats.

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Best Practices

• Always use the latest release.
• Rotate keys regularly.
• Enable all security modules.
• Report vulnerabilities via GitHub Security.