File size: 5,435 Bytes
0a93d9c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | // AutomatedOperator FFI Bridge Implementation
// Integrates Circom witness calculator + Rapidsnark CUDA prover
#include "automated_operator/include/engine_bridge.hpp"
#include <stdexcept>
#include <cstring>
#include <array>
// Mock implementation for compilation without full Circom/Rapidsnark toolchain
// Replace with actual implementation when toolchain is available
namespace algorithm_engine {
// Mock BN254 field element operations
struct FrElement {
std::array<uint8_t, 32> data;
};
inline void Fr_fromBin(FrElement* out, const uint8_t* in) {
std::memcpy(out->data.data(), in, 32);
}
inline void Fr_from32(FrElement* out, uint32_t val) {
out->data.fill(0);
std::memcpy(out->data.data(), &val, 4);
}
// Mock Circom witness calculator interface
class Circom_CalcWit {
public:
Circom_CalcWit() {}
~Circom_CalcWit() {}
void setSignal(const char* name, const FrElement& val) {
// In real implementation: store signal value for witness generation
(void)name; (void)val;
}
void generate() {
// In real implementation: execute witness generation
// Throws if constraints violated (e.g., entropy > 200000)
}
const std::vector<uint8_t>& getWitness() const {
static std::vector<uint8_t> dummy(1024);
return dummy;
}
};
// Mock Rapidsnark CUDA prover
namespace rapidsnark {
struct Groth16Proof {
std::array<uint8_t, 64> pi_a;
std::array<uint8_t, 128> pi_b;
std::array<uint8_t, 64> pi_c;
};
inline Groth16Proof groth16_prove_cuda(const std::vector<uint8_t>& witness, const char* zkey_path) {
(void)witness; (void)zkey_path;
// In real implementation: call Rapidsnark CUDA prover
Groth16Proof proof;
proof.pi_a.fill(0xAA);
proof.pi_b.fill(0xBB);
proof.pi_c.fill(0xCC);
return proof;
}
} // namespace rapidsnark
// Mock BLAKE3 hash for proof/result commitments
std::array<uint8_t, 32> blake3_hash(const std::vector<uint8_t>& data) {
std::array<uint8_t, 32> out;
out.fill(0);
// In real implementation: use blake3 crate
for (size_t i = 0; i < std::min(data.size(), size_t(32)); ++i) {
out[i] = data[i];
}
return out;
}
ZkProof execute_circuit_and_prove(
const std::array<uint8_t, 32>& target_space,
const std::array<uint8_t, 32>& constraints,
const std::array<uint8_t, 32>& metric,
uint32_t priority,
uint32_t quantized_entropy
) {
// 1. Initialize Circom Witness Calculator
auto* ctx = new Circom_CalcWit();
// 2. Load Inputs into ALGORITHM_ENGINE circuit
FrElement val;
Fr_fromBin(&val, target_space.data());
ctx->setSignal("targetSpaceHash", val);
Fr_fromBin(&val, constraints.data());
ctx->setSignal("constraintsHash", val);
Fr_fromBin(&val, metric.data());
ctx->setSignal("successMetricHash", val);
FrElement prio, ent;
Fr_from32(&prio, priority);
Fr_from32(&ent, quantized_entropy);
ctx->setSignal("priority", prio);
ctx->setSignal("entropyEstimate", ent);
// 3. Compute Witness (Throws if constraints violated)
ctx->generate();
// 4. Pipe to Rapidsnark for CUDA Proving
// Assumes proving key 'engine_final.zkey' is available
auto proof_data = rapidsnark::groth16_prove_cuda(ctx->getWitness(), "engine_final.zkey");
// 5. Construct result
ZkProof result;
result.pi_a = proof_data.pi_a;
result.pi_b = proof_data.pi_b;
result.pi_c = proof_data.pi_c;
// Public signals: [resultHash, priority] (snarkjs order)
result.public_signals.resize(32 + 4);
// resultHash will be filled after Poseidon hash computation
// For now, use mock
result.public_signals[0..32].copy_from_slice(&target_space); // placeholder
std::memcpy(&result.public_signals[32], &priority, 4);
// 6. Compute commitment hashes
// resultHash = Poseidon(targetSpace, constraints, metric, priority, entropy)
// In real implementation: extract from witness or recompute
std::vector<uint8_t> result_input;
result_input.insert(result_input.end(), target_space.begin(), target_space.end());
result_input.insert(result_input.end(), constraints.begin(), constraints.end());
result_input.insert(result_input.end(), metric.begin(), metric.end());
result_input.insert(result_input.end(), reinterpret_cast<const uint8_t*>(&priority),
reinterpret_cast<const uint8_t*>(&priority) + 4);
result_input.insert(result_input.end(), reinterpret_cast<const uint8_t*>(&quantized_entropy),
reinterpret_cast<const uint8_t*>(&quantized_entropy) + 4);
result.result_hash = blake3_hash(result_input);
// proofHash = hash of proof components
std::vector<uint8_t> proof_input;
proof_input.insert(proof_input.end(), result.pi_a.begin(), result.pi_a.end());
proof_input.insert(proof_input.end(), result.pi_b.begin(), result.pi_b.end());
proof_input.insert(proof_input.end(), result.pi_c.begin(), result.pi_c.end());
result.proof_hash = blake3_hash(proof_input);
// Update public signals with actual resultHash
std::memcpy(result.public_signals.data(), result.result_hash.data(), 32);
delete ctx;
return result;
}
} // namespace algorithm_engine |