Security

Security Model

The Anticloud ecosystem is built on a foundation of cryptographic verification. Every operation — from browsing to storage to AI inference — is backed by tamper-evident proofs.

Cryptographic Verification Flow

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sequenceDiagram
    actor User
    participant App as Application (Kathon/Kamelot)
    participant Lib as Libern Crypto Library
    participant Ledger as .aioss Ledger

    User->>App: Perform action
    App->>Lib: Hash content (SHA3-256)
    Lib-->>App: content_hash
    App->>Lib: Sign hash (Ed25519)
    Lib-->>App: signature
    App->>Ledger: Append {content_hash, signature, timestamp}
    Ledger-->>App: ledger_entry_hash
    App->>Ledger: Verify chain integrity
    Ledger-->>App: proof (Merkle inclusion)
    App->>User: Confirmation + verification proof

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Threat Model

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flowchart TB
    subgraph Threats[Identified Threats]
        NET[Network Eavesdropping]
        SUP[Supply Chain Attack]
        SIDE[Side-Channel Leakage]
        DATA[Data Tampering]
        ID[Identity Spoofing]
        AI[AI Model Poisoning]
        BOOT[Boot Integrity]
        DOS[Denial of Service]
    end
    subgraph Mitigations[Security Mitigations]
        CRYPTO[End-to-end Crypto]
        VERIFY[Signature Verification]
        LEDGER[Tamper-evident Ledger]
        SANDBOX[WASM Sandbox]
        TPM[TPM Attestation]
        AUDIT[Continuous Audit]
    end
    NET --> CRYPTO
    SUP --> VERIFY
    DATA --> LEDGER
    AI --> SANDBOX
    BOOT --> TPM
    ID --> AUDIT
    SIDE --> CRYPTO
    DOS --> SANDBOX
    style Threats fill:#ff3b30,color:#fff
    style Mitigations fill:#34c759,color:#fff

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Threat Analysis

Threat	Likelihood	Impact	Mitigation	Status
Network eavesdropping	Medium	High	End-to-end encryption (Ed25519 + Noise protocol)	✅ Implemented
Supply chain attack	Low	Critical	Signed commits + .aioss audit trail + reproducible builds	✅ Implemented
Side-channel leakage	Medium	Medium	Constant-time crypto implementations + timing attack mitigations	✅ Implemented
Data tampering	Low	Critical	SHA3-256 hash chains + Ed25519 signatures on all state	✅ Implemented
Identity spoofing	Medium	High	MFSO multi-factor verification + Shamir secret sharing	✅ Implemented
AI model poisoning	Medium	High	Model signing + WASM sandbox + contradiction detection	✅ Implemented
Boot integrity	Medium	Critical	TPM 2.0 measured boot + .aioss boot attestation	✅ Implemented
Denial of service	High	Medium	WASM sandbox resource limits + rate limiting	⚠️ Partial

Cryptographic Primitives

Primitive	Standard	Usage	Projects
SHA3-256	FIPS 202 (Keccak)	Content hashing, hash chains	Libern, aioss-format, Kathon, Kazcade
Ed25519	RFC 8032	Digital signatures, identity	Libern, aioss-format, Kathon, MFSO
BLAKE3	Bao specification	Parallel content-addressed hashing	Kazcade
TPM 2.0	ISO/IEC 11889	Measured boot, key attestation	Sovereign-OS
Shamir Secret Sharing	Adi Shamir (1979)	Multi-factor key splitting	MFSO
ML-DSA	FIPS 204 (draft)	Post-quantum signatures (planned)	Libern (roadmap)

Security Architecture

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flowchart LR
    subgraph App[Application Layer]
        KATHON[Kathon]
        KAMELOT[Kamelot]
        ANTICODE[Anticode]
    end
    subgraph Auth[Authentication Layer]
        MFSO[MFSO Identity]
        SIG[Ed25519 Signatures]
    end
    subgraph Audit[Audit Layer]
        LEDGER[.aioss Chain]
        VERIFY[Verification API]
    end
    subgraph Hardware[Hardware Layer]
        TPM[TPM 2.0]
        SE[Secure Enclave]
    end
    App --> Auth
    Auth --> Audit
    Audit --> Hardware

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