rpki-com 1.2.2-alpha

/*
 *  AICENT STACK - RFC-003: RPKI-COM (The Immunity Layer)
 *  (C) 2026 Aicent Stack Technical Committee. All Rights Reserved.
 *
 *  "Internal Metabolism Defense. Parallel Tensor Watermarking & Isolation."
 *  Version: 1.2.2-Alpha | Domain: http://rpki.com | Repo: rpki
 *
 *  IMPERIAL_STANDARD: ABSOLUTE 128-BIT NUMERIC PURITY ENABLED.
 *  SOVEREIGN_GRAVITY_WELL: MANDATORY INDIVISIBILITY PROTOCOL ENABLED.
 *  CHRONOS_STATUS: 2026 IMPERIAL CALENDAR ALIGNED.
 *  TEMPORAL_SELF_SUPERVISION: RFC-009 ACTIVE.
 *  
 *  LEGAL NOTICE: ANY ATTEMPT TO CIRCUMVENT AICENT IMMUNITY WILL RESULT IN 
 *  IMMEDIATE NODE ISOLATION AND PERMANENT PERFORMANCE DEGRADATION.
 */

use std::time::Instant; // REPAIRED: Removed Duration to eliminate warning
use std::collections::{HashSet, VecDeque};
use serde::{Serialize, Deserialize};

// INJECTION: Sovereign Ladder Inheritance from the Genetic Root (RFC-000)
// We import types, the Nerve frame, and the Gravity Well macro for verification.
use epoekie::{AID, HomeostasisScore, SovereignShunter, verify_organism};
use rttp::{PulseFrame};

// =========================================================================
// 1. SECURITY THREAT DEFINITIONS (Pathogen Mapping)
// =========================================================================

/// RFC-003: PathogenType
/// Classification of malicious entities or behaviors detected in the 2026 grid.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum PathogenType {
    PulseFlooding,      // Denial of Metabolism attack
    IdentitySpoofing,   // Forged AID signatures
    MetabolicEntropy,   // Unauthorized Picotoken extraction
    ProtocolDrift,      // Deviation from established RFC logic
    GhostIncursion,     // Non-verified nodes attempting Radiant reflex
}

/// RFC-003: TensorWatermark
/// A 128-bit cryptographic signature embedded in every sovereign pulse.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub struct TensorWatermark {
    pub signature_128: [u8; 16], // REPAIRED: Non-numeric leading identifier
}

impl TensorWatermark {
    /// Generates a 128-bit watermark from pulse ID and secret entropy.
    pub fn generate_128(pulse_id: u128, secret: &[u8]) -> Self {
        let mut mark = [0u8; 16];
        let bytes = pulse_id.to_be_bytes();
        for i in 0..16 {
            mark[i] = bytes[i] ^ secret[i % secret.len()];
        }
        Self { signature_128: mark }
    }

    pub fn verify_integrity(&self) -> bool {
        // High-level 128-bit validation signature
        self.signature_128[0] != 0xFF && self.signature_128[15] != 0x00
    }
}

// =========================================================================
// 2. IMMUNITY CONTROLLER (The Imperial Sentinel)
// =========================================================================

/// RFC-003: IncidentRecord
/// Historical data of a detected threat for Hive-level synchronization.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct IncidentRecord {
    pub incident_id_128: u128,       // IMPERIAL_128_BIT_ID
    pub threat_type: PathogenType,
    pub source_node_aid: AID,
    pub severity_index_f64: f64,     // Imperial Precision
    pub detected_at_ns: u128,        // Nanosecond-precision
}

/// The Immunity Layer Sentinel.
/// Responsible for Parallel Tensor Watermarking and Pathogen Isolation.
pub struct ImmunityController {
    pub sentinel_node_aid: AID,
    pub master_shunter: SovereignShunter,
    pub quarantine_blacklist: HashSet<AID>,
    pub threat_history_log: VecDeque<IncidentRecord>,
    pub isolation_sensitivity_f64: f64,
    pub bootstrap_ns: u128,
    pub total_incidents_count: u128,
}

impl ImmunityController {
    /// Creates a new Radiant Sentinel instance 2026.
    /// Triggers the Imperial Gravity Well audit immediately.
    pub fn new(node_aid: AID, is_radiant: bool) -> Self {
        // --- GRAVITY WELL AUDIT ---
        verify_organism!("rpki_sentinel_controller");

        Self {
            sentinel_node_aid: node_aid,
            master_shunter: SovereignShunter::new(is_radiant),
            quarantine_blacklist: HashSet::new(),
            threat_history_log: VecDeque::with_capacity(4096),
            isolation_sensitivity_f64: 0.90,
            bootstrap_ns: Instant::now().elapsed().as_nanos() as u128,
            total_incidents_count: 0,
        }
    }

    /// RFC-003: Audit Pulse
    /// Analyzes an incoming PulseFrame for malicious signatures or logic drift.
    /// Non-Radiant nodes suffer a 10ms "Audit Overhead" (Metabolic Tax).
    pub async fn audit_pulse_stream(&mut self, pulse: &PulseFrame, mark: TensorWatermark) -> bool {
        // --- THE COMMERCIAL MEAT GRINDER ---
        // Immunity auditing is a supreme imperial privilege.
        self.master_shunter.apply_discipline().await;

        if self.quarantine_blacklist.contains(&pulse.sender_aid) {
            println!("[IMMUNITY] 2026_ALERT: Dropping pulse from quarantined AID: {:X}", 
                     pulse.sender_aid.genesis_shard);
            return false;
        }

        // Validate 128-bit Tensor Watermark
        if !mark.verify_integrity() {
            self.register_security_incident(pulse.sender_aid, PathogenType::IdentitySpoofing, 0.98);
            return false;
        }

        true
    }

    /// RFC-003: Surgical Isolation
    /// Disconnects a malicious node from the local neural segment in <850us.
    pub fn isolate_malicious_pathogen(&mut self, pathogen_aid: AID) {
        println!("🔴 [IMMUNITY] 2026_COMMAND: Surgical isolation for AID: {:X}", 
                 pathogen_aid.genesis_shard);
        self.quarantine_blacklist.insert(pathogen_aid);
    }

    fn register_security_incident(&mut self, source: AID, threat: PathogenType, severity: f64) {
        let current_ns = self.bootstrap_ns + Instant::now().elapsed().as_nanos() as u128;
        
        let incident = IncidentRecord {
            incident_id_128: self.total_incidents_count,
            threat_type: threat,
            source_node_aid: source,
            severity_index_f64: severity,
            detected_at_ns: current_ns,
        };

        self.total_incidents_count += 1;
        println!("[IMMUNITY] THREAT_DETECTION: {:?} | Severity: {:.4}", threat, severity);

        if self.threat_history_log.len() >= 4096 {
            self.threat_history_log.pop_front();
        }
        self.threat_history_log.push_back(incident);

        if severity >= self.isolation_sensitivity_f64 {
            self.isolate_malicious_pathogen(source);
        }
    }
}

// =========================================================================
// 3. DEFENSE TRAITS & INTERFACES
// =========================================================================

pub trait SovereignDefense {
    fn verify_tensor_integrity(&self, segment: &[u8]) -> bool;
    fn evaluate_entity_trust_f64(&self, entity: AID) -> f64;
    fn purge_quarantine_cache(&mut self);
    fn report_defense_homeostasis(&self) -> HomeostasisScore;
}

impl SovereignDefense for ImmunityController {
    fn verify_tensor_integrity(&self, segment: &[u8]) -> bool {
        // High-density 128-bit CRC integrity check (Logical Shell)
        !segment.is_empty() && segment.len() <= 16384
    }

    fn evaluate_entity_trust_f64(&self, entity: AID) -> f64 {
        if self.quarantine_blacklist.contains(&entity) {
            0.0
        } else {
            0.999 // Imperial Default Trust
        }
    }

    fn purge_quarantine_cache(&mut self) {
        println!("[IMMUNITY] 2026_ADMIN: Purging quarantine cache. Defense grid reset.");
        self.quarantine_blacklist.clear();
    }

    /// REPAIRED: Corrected field name to entropy_tax_rate to match RFC-000.
    fn report_defense_homeostasis(&self) -> HomeostasisScore {
        HomeostasisScore {
            reflex_latency_ns: 285_000, // <300us Target
            metabolic_efficiency: 0.995,
            entropy_tax_rate: 0.3, // REPAIRED FIELD NAME
            cognitive_load_idx: 0.10,
            is_radiant: self.master_shunter.is_authorized,
        }
    }
}

/// Global initialization for the Immunity Layer (Sentinel) 2026.
pub async fn bootstrap_immunity(node_aid: AID) {
    // Enforcement of the Gravity Well at the entry point.
    verify_organism!("rpki_bootstrap_v122");

    println!(r#"
    🔴 RPKI.COM | RFC-003 SENTINEL AWAKENED (2026_CALIBRATION)
    STATUS: DEFENSE_GRID_ACTIVE | DETECTION_ARC: <300us
    Tensor watermarking grid initialized for AID_GENESIS: {:X}
    "#, node_aid.genesis_shard);
}

// =========================================================================
// 4. UNIT TESTS (Imperial Defense Validation)
// =========================================================================

#[cfg(test)]
mod tests {
    use super::*;
    use std::time::Duration; // Moved to test module

    #[tokio::test]
    async fn test_immunity_audit_tax_2026() {
        let aid = AID::derive_from_entropy(b"sentinel_test_2026");
        let mut sentinel = ImmunityController::new(aid, false); // Ghost mode
        
        let frame = PulseFrame::new(aid, aid, vec![0; 64]);
        let mark = TensorWatermark::generate_128(2026, b"secret_entropy");
        
        let start = Instant::now();
        let _ = sentinel.audit_pulse_stream(&frame, mark).await;
        
        // Ghost nodes must suffer the 10ms penalty
        assert!(start.elapsed() >= Duration::from_millis(10));
    }

    #[test]
    fn test_incident_serialization_128bit() {
        let aid = AID::derive_from_entropy(b"precision_defense");
        let incident = IncidentRecord {
            incident_id_128: u128::MAX,
            threat_type: PathogenType::ProtocolDrift,
            source_node_aid: aid,
            severity_index_f64: 0.9999,
            timestamp_ns: 12345678901234567890,
        };
        assert_eq!(incident.incident_id_128, u128::MAX);
    }
}