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Implement quantum-enhanced encryption method in QuantumEnhancedLWE class
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dxns-hub committed Nov 28, 2024
1 parent 643dfcb commit 88c2f17
Showing 1 changed file with 39 additions and 1 deletion.
40 changes: 39 additions & 1 deletion src/quantum_enhanced_lwe/core/quantum_enhanced_lwe.py
Original file line number Diff line number Diff line change
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from quantum_resonance_circuit import QuantumCircuit
from .quantum_resonance_circuit import QuantumResonanceCircuit
import numpy as np

class QuantumEnhancedLWE:
Expand All @@ -12,6 +12,44 @@ def __init__(self, n=256, q=4093, sigma=1.0):
self.n = n
self.q = q
self.sigma = sigma
self.quantum_circuit = QuantumResonanceCircuit() # Initialize quantum circuit

def quantum_enhanced_encrypt(self, pk, m):
"""
Encrypt a message using quantum-enhanced techniques.
:param pk: Public key
:param m: Message to encrypt (0 or 1)
:return: Ciphertext as a tuple of (a, c)
"""
# Initialize quantum circuit state
q_state = self.quantum_circuit.initialize_state()

# Evolve quantum state
evolved_state = self.quantum_circuit.evolve_state(q_state, 1e-9)

# Calculate quantum noise from evolved state
quantum_noise = np.abs(evolved_state[0])

# Create entangled circuit for additional randomness
entangled_circuit = self.quantum_circuit.create_entangled_circuit()

# Standard LWE encryption with quantum enhancement
a = self.sample_uniform(self.n)
e = self.sample_error(1)[0]

# Add quantum noise to error term
e = (e + int(quantum_noise * self.q)) % self.q

# Calculate total quantum possibilities
quantum_factor = self.quantum_circuit.get_total_possibilities()

# Apply quantum factor to error term
e = (e + int(quantum_factor)) % self.q

b = (np.dot(a, pk[0]) + e) % self.q
c = (b + m * (self.q // 4)) % self.q

return a, c

def gen_keypair(self):
"""
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