diff --git a/QuantumNexusProtocol/src/cryptography/post_quantum_crypto.py b/QuantumNexusProtocol/src/cryptography/post_quantum_crypto.py
new file mode 100644
index 000000000..ffeb027b4
--- /dev/null
+++ b/QuantumNexusProtocol/src/cryptography/post_quantum_crypto.py
@@ -0,0 +1,22 @@
+from pqcrypto.kem import saber
+
+class PostQuantumCrypto:
+    def __init__(self):
+        self.public_key, self.private_key = saber.generate_keypair()
+
+    def encrypt(self, message):
+        ciphertext, shared_secret = saber.encrypt(self.public_key, message)
+        return ciphertext, shared_secret
+
+    def decrypt(self, ciphertext):
+        message, shared_secret = saber.decrypt(ciphertext, self.private_key)
+        return message
+
+# Example usage
+if __name__ == "__main__":
+    pq_crypto = PostQuantumCrypto()
+    message = b"Hello, Quantum World!"
+    ciphertext, shared_secret = pq_crypto.encrypt(message)
+    print(f"Ciphertext: {ciphertext}")
+    decrypted_message = pq_crypto.decrypt(ciphertext)
+        print(f"Decrypted Message: {decrypted_message}")