rpki-com 1.2.5-alpha

RFC-003: The Immunity Layer. Parallel Tensor Watermarking and 128-bit malicious pulse isolation for the Aicent Stack 2026. Aligned with RFC-014 (PICSI).
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/*
 *  AICENT STACK - RFC-003: RPKI Parallel Tensor Watermarking
 *  (C) 2026 Aicent Stack Technical Committee. All Rights Reserved.
 *
 *  "The digital fingerprint of sovereignty. Every pulse is a witness."
 *  Version: 1.2.5-Alpha | Domain: http://rpki.com
 *
 *  IMPERIAL_STANDARD: ABSOLUTE 128-BIT NUMERIC PURITY ENABLED.
 *  ALIGNMENT: 64-BYTE CACHE-LINE SUTURE.
 */

use serde::{Deserialize, Serialize};
use epoekie::{AID, Picotoken};

/// [RFC-003] Tensor Watermark v1.2.5.
/// Injected into the metadata of every 128-bit sovereign pulse.
/// Designed for parallel validation in < 300us.
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct TensorWatermark_128 {
    /// 128-bit unique signature derived from AID and Pulse Context.
    pub signature_shard: u128,
    /// 128-bit metabolic entropy tag for ZCMK clearing.
    pub metabolic_tag: u128,
    /// 128-bit nanosecond timestamp locked to the 12ns jitter.
    pub emission_ts_ns: u128,
    /// 128-bit logical fidelity checksum (RFC-009 Suture).
    pub fidelity_checksum: u128,
}

impl TensorWatermark_128 {
    /// Generates a new v1.2.5-Alpha Tensor Watermark.
    /// This is the physical proof that a pulse originated from a Radiant node.
    pub fn new(aid: AID, metabolic_volume: Picotoken) -> Self {
        let now_ns = std::time::Instant::now().elapsed().as_nanos() as u128;
        
        // --- 128-BIT SIGNATURE SUTURE ---
        // Binding the node identity to the current temporal coordinate.
        let sig = aid.genesis_shard ^ aid.resonance_shard ^ now_ns;

        Self {
            signature_shard: sig,
            metabolic_tag: metabolic_volume.total_value(),
            emission_ts_ns: now_ns,
            fidelity_checksum: sig ^ 0x4149434E_534F5645_52454947_4E, // "AICNSOVEREIGN"
        }
    }

    /// RFC-003: Parallel Integrity Check.
    /// Performs a zero-latency validation of the 128-bit watermark.
    #[inline(always)]
    pub fn verify_pulse_integrity(&self, expected_aid_hash: u128) -> bool {
        // Logic Collapse: Comparing the fidelity checksum with the identity shard.
        // A mismatch triggers immediate shunting to the 11ms Ghost path.
        let check = self.signature_shard ^ self.fidelity_checksum;
        (check == 0x4149434E_534F5645_52454947_4E) && 
        (self.signature_shard ^ expected_aid_hash) != 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
    }
}

/// [RFC-003] Watermark Injector.
/// Operates within the RTTP conduction hot-path.
pub struct PulseSentinel {
    pub local_aid: AID,
}

impl PulseSentinel {
    /// Injects a 128-bit watermark into an outbound 64-byte pulse frame.
    /// Optimized for < 10µs overhead to preserve the 161.862µs total reflex.
    pub fn inject_sovereign_mark(&self, volume_p_t: Picotoken) -> TensorWatermark_128 {
        #[cfg(debug_assertions)]
        println!("\x1b[1;31m[IMMUNITY-MARK]\x1b[0m Injecting 128-bit witness into pulse stream.");
        
        TensorWatermark_128::new(self.local_aid, volume_p_t)
    }
}