diff --git a/QuantumNexusProtocol/src/quantum/quantum_key_distribution.py b/QuantumNexusProtocol/src/quantum/quantum_key_distribution.py
new file mode 100644
index 000000000..c94da97cd
--- /dev/null
+++ b/QuantumNexusProtocol/src/quantum/quantum_key_distribution.py
@@ -0,0 +1,44 @@
+import numpy as np
+import random
+
+class QuantumKeyDistribution:
+    def __init__(self):
+        self.basis_choices = ['Z', 'X']
+        self.key = []
+        self.basis = []
+        self.eavesdropping_detected = False
+
+    def generate_key(self, length):
+        """Generate a random quantum key with basis choices."""
+        for _ in range(length):
+            bit = random.randint(0, 1)
+            basis = random.choice(self.basis_choices)
+            self.key.append((bit, basis))
+            self.basis.append(basis)
+        return self.key
+
+    def measure(self, basis_choice):
+        """Simulate measurement of the quantum key."""
+        measured_key = []
+        for (bit, basis) in self.key:
+            if basis == basis_choice:
+                measured_key.append(bit)
+            else:
+                measured_key.append(random.randint(0, 1))  # Random outcome
+        return measured_key
+
+    def reconcile_keys(self, measured_key, basis_choice):
+        """Reconcile keys and check for eavesdropping."""
+        if self.basis != basis_choice:
+            self.eavesdropping_detected = True
+        return [bit for bit, b in zip(measured_key, basis_choice) if b in self.basis]
+
+# Example usage
+if __name__ == '__main__':
+    qkd = QuantumKeyDistribution()
+    key = qkd.generate_key(10)
+    print("Generated Quantum Key:", key)
+    measured_key = qkd.measure(['Z', 'X'] * 5)
+    reconciled_key = qkd.reconcile_keys(measured_key, ['Z', 'Z', 'X', 'X', 'Z', 'X', 'Z', 'X', 'Z', 'X'])
+    print("Reconciled Key:", reconciled_key)
+    print("Eavesdropping Detected:", qkd.eavesdropping_detected)