File size: 3,897 Bytes
6e9bd63 | 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 | #!/usr/bin/env python3
"""
P3Q Quantum Simulator Backend
Classical simulation of OpenQASM circuits for P4 interlock testing.
NOT a quantum computer - pure classical simulation for verification.
"""
import numpy as np
from typing import Dict, List, Tuple, Optional
from dataclasses import dataclass
from enum import IntEnum
class QSimCommandType(IntEnum):
KEYGEN_256 = 0x01
NONCE_128 = 0x02
GROVER_AES4 = 0x03
AMP_EST_LEAKAGE = 0x04
class QSimStatus(IntEnum):
SUCCESS = 0x00
TIMEOUT = 0x01
ERROR = 0x02
UNSUPPORTED = 0xFF
@dataclass
class QSimCommand:
cmd_type: QSimCommandType
qubits: int
shots: int
params: bytes
event_id: int
@dataclass
class QSimResponse:
event_id: int
status: QSimStatus
data: bytes
shots_completed: int
class P3QSimulator:
"""Classical simulator for P3Q quantum circuits."""
def __init__(self, seed: Optional[int] = None):
self.rng = np.random.default_rng(seed)
self.max_qubits = 32
def execute(self, cmd: QSimCommand) -> QSimResponse:
if cmd.qubits > self.max_qubits:
return QSimResponse(cmd.event_id, QSimStatus.ERROR, b'', 0)
if cmd.cmd_type == QSimCommandType.KEYGEN_256:
return self._sim_keygen(cmd)
elif cmd.cmd_type == QSimCommandType.NONCE_128:
return self._sim_nonce(cmd)
elif cmd.cmd_type == QSimCommandType.GROVER_AES4:
return self._sim_grover_aes4(cmd)
elif cmd.cmd_type == QSimCommandType.AMP_EST_LEAKAGE:
return self._sim_amp_est(cmd)
else:
return QSimResponse(cmd.event_id, QSimStatus.UNSUPPORTED, b'', 0)
def _sim_keygen(self, cmd: QSimCommand) -> QSimResponse:
key_bytes = self.rng.bytes(32)
return QSimResponse(cmd.event_id, QSimStatus.SUCCESS, key_bytes, 1)
def _sim_nonce(self, cmd: QSimCommand) -> QSimResponse:
nonce_bytes = self.rng.bytes(16)
return QSimResponse(cmd.event_id, QSimStatus.SUCCESS, nonce_bytes, 1)
def _sim_grover_aes4(self, cmd: QSimCommand) -> QSimResponse:
if len(cmd.params) < 32:
return QSimResponse(cmd.event_id, QSimStatus.ERROR, b'', 0)
results = bytearray()
for _ in range(min(cmd.shots, 100)):
key = self.rng.bytes(16)
results.extend(key)
return QSimResponse(cmd.event_id, QSimStatus.SUCCESS, bytes(results), len(results)//16)
def _sim_amp_est(self, cmd: QSimCommand) -> QSimResponse:
m = min(cmd.qubits - 256, 10)
phase = self.rng.integers(0, 2**m)
phase_bytes = phase.to_bytes(4, 'big')
return QSimResponse(cmd.event_id, QSimStatus.SUCCESS, phase_bytes, cmd.shots)
def test_p4_interlock():
"""Test classical-quantum handshake with simulated P4 events."""
sim = P3QSimulator(seed=42)
cmd = QSimCommand(
cmd_type=QSimCommandType.KEYGEN_256,
qubits=256, shots=1, params=b'', event_id=0x00000001
)
rsp = sim.execute(cmd)
assert rsp.status == QSimStatus.SUCCESS
assert len(rsp.data) == 32
print(f"KeyGen: {rsp.data.hex()}")
cmd = QSimCommand(
cmd_type=QSimCommandType.NONCE_128,
qubits=128, shots=1, params=b'', event_id=0x00000002
)
rsp = sim.execute(cmd)
assert rsp.status == QSimStatus.SUCCESS
assert len(rsp.data) == 16
print(f"Nonce: {rsp.data.hex()}")
pt = bytes.fromhex("00112233445566778899aabbccddeeff")
ct = bytes.fromhex("69c4e0d86a7b0430d8cdb78070b4c55a")
cmd = QSimCommand(
cmd_type=QSimCommandType.GROVER_AES4,
qubits=512, shots=10, params=pt + ct, event_id=0x00000003
)
rsp = sim.execute(cmd)
assert rsp.status == QSimStatus.SUCCESS
print(f"Grover shots: {rsp.shots_completed}")
print("All P4 interlock tests passed.")
if __name__ == "__main__":
test_p4_interlock()
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