PrivacyCore™
Architecture

# PrivacyCore™ — Intent Routing (Python SDK)
import hashlib, json, time
from dataclasses import dataclass, field
from typing import Optional, Dict, List

@dataclass
class IntentPayload:
    agent_id: str
    action: str
    resources: List[str] = field(default=factory(list))
    policy_tags: List[str] = field(default=factory(list))
    context_id: Optional[str] = None
    timestamp: float = field(default=time.time)
    nonce: str = field(default=lambda: os.urandom(16).hex())

class PrivacyCoreIntentRouter:
    def __init__(self, api_key: str, policy_engine: PolicyEngine):
        self.api_key = api_key
        self.policy_engine = policy_engine
        self.cache = IntentCache(ttl=300)  # 5-min cache

    def route(self, intent: IntentPayload) -> IntentResponse:
        # 1. Verify intent signature with ZK proof
        zk_proof = self._generate_zk_proof(intent)
        if not self._verify_zk_proof(zk_proof):
            raise IntentValidationError("ZK proof verification failed")

        # 2. Evaluate against policy engine
        policy_result = self.policy_engine.evaluate(intent)

        # 3. Create checkpoint before execution
        checkpoint = self._create_checkpoint(intent.context_id)

        # 4. Route to execution engine or reject
        if policy_result.allowed:
            execution_context = self._create_execution_context(intent, checkpoint)
            return IntentResponse(allowed=True, context=execution_context)
        else:
            self._emit_audit_event(intent, policy_result, "REJECTED")
            raise IntentRejectedError(policy_result.reason)

    def _create_checkpoint(self, context_id: str) -> Checkpoint:
        snapshot = self.state_manager.snapshot(context_id)
        return Checkpoint(
            id=hashlib.sha3_256(f"{context_id}:{time.time()}".encode()).hexdigest()[:16],
            context_id=context_id,
            state=snapshot,
            timestamp=time.time()
        )

// PrivacyCore™ — Intent Routing (TypeScript SDK)
import crypto from 'crypto';

interface IntentPayload {
  agentId: string;
  action: string;
  resources: string[];
  policyTags: string[];
  contextId?: string;
  timestamp: number;
  nonce: string;
}

class PrivacyCoreClient {
  private baseUrl: string;
  private apiKey: string;
  private cache = new Map<string, CachedResponse>();

  constructor(baseUrl: string, apiKey: string) {
    this.baseUrl = baseUrl;
    this.apiKey = apiKey;
  }

  async route(intent: IntentPayload): Promise<IntentResponse> {
    // 1. Sign intent with SHA3-256
    const signature = crypto.createHash('sha3-256')
      .update(JSON.stringify(intent) + this.apiKey)
      .digest('hex');

    // 2. POST to PrivacyCore™ Intent Router
    const response = await fetch(`${this.baseUrl}/api/v1/intents/route`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'X-PrivacyCore-Signature': signature,
        'Authorization': `Bearer ${this.apiKey}`,
      },
      body: JSON.stringify(intent),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new PrivacyCoreError(error.code, error.message);
    }

    // 3. Return execution context + checkpoint ID
    return response.json();
  }

  async getExecution(contextId: string): Promise<Execution> {
    const cacheKey = `exec:${contextId}`;
    if (this.cache.has(cacheKey)) {
      return this.cache.get(cacheKey)!;
    }
    const response = await fetch(
      `${this.baseUrl}/api/v1/executions/${contextId}`,
      { headers: { 'Authorization': `Bearer ${this.apiKey}` } }
    );
    return response.json();
  }
}