From 5aca862e93246548c9e9406e84164391860479cd Mon Sep 17 00:00:00 2001
From: KOSASIH <kosasihg88@gmail.com>
Date: Wed, 7 Aug 2024 18:32:36 +0700
Subject: [PATCH] Create node.py

---
 .../decentralized_architecture/node.py        | 91 +++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 projects/piguardian/decentralized_architecture/node.py

diff --git a/projects/piguardian/decentralized_architecture/node.py b/projects/piguardian/decentralized_architecture/node.py
new file mode 100644
index 000000000..68b458dcf
--- /dev/null
+++ b/projects/piguardian/decentralized_architecture/node.py
@@ -0,0 +1,91 @@
+# node.py
+
+import hashlib
+import os
+import time
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric import rsa
+from cryptography.hazmat.backends import default_backend
+
+class SuperNode:
+    def __init__(self, node_id, private_key):
+        self.node_id = node_id
+        self.private_key = private_key
+        self.public_key = private_key.public_key()
+        self.zk_reputation = 0
+        self.reputation_confirmations = []
+        self.secure_enclave = SecureEnclave()
+        self.hardware_security_module = HardwareSecurityModule()
+        self.multi_party_computation = MultiPartyComputation()
+
+    def generate_transaction(self, sender, recipient, amount):
+        transaction = {
+            'sender': sender,
+            'recipient': recipient,
+            'amount': amount,
+            'timestamp': int(time.time()),
+            'node_id': self.node_id
+        }
+        transaction_hash = hashlib.sha256(str(transaction).encode()).hexdigest()
+        signature = self.sign_transaction(transaction_hash)
+        return transaction, signature
+
+    def sign_transaction(self, transaction_hash):
+        signer = self.private_key.signer(padding.PSS(mgf=padding.MGF1(hashes.SHA256()), salt_length=padding.PSS.MAX_LENGTH), hashes.SHA256())
+        signature = signer.finalize()
+        return signature
+
+    def verify_transaction(self, transaction, signature):
+        verifier = self.public_key.verifier(signature, padding.PSS(mgf=padding.MGF1(hashes.SHA256()), salt_length=padding.PSS.MAX_LENGTH), hashes.SHA256())
+        verifier.verify()
+        return True
+
+    def zk_reputational_affirmation(self, transaction):
+        # ZK reputational affirmation logic
+        pass
+
+    def reputational_confirmation(self, transaction):
+        # Reputational confirmation logic
+        pass
+
+    def zk_reputational_rollup(self, transactions):
+        # ZK reputational rollup logic
+        pass
+
+    def secure_settlement(self, transaction):
+        # Secure settlement logic
+        pass
+
+    def confidential_computation(self, transaction):
+        # Confidential computation logic
+        pass
+
+    def defence_in_depth_security(self, transaction):
+        # Defence-in-depth security logic
+        pass
+
+class SecureEnclave:
+    def __init__(self):
+        # Initialize secure enclave
+        pass
+
+class HardwareSecurityModule:
+    def __init__(self):
+        # Initialize hardware security module
+        pass
+
+class MultiPartyComputation:
+    def __init__(self):
+        # Initialize multi-party computation module
+        pass
+
+if __name__ == '__main__':
+    node_id = 'node1'
+    private_key = rsa.generate_private_key(public_exponent=65537, key_size=2048, backend=default_backend())
+    node = SuperNode(node_id, private_key)
+
+    # Example usage
+    transaction, signature = node.generate_transaction('Alice', 'Bob', 10)
+    print('Transaction:', transaction)
+    print('Signature:', signature.hex())
+    print('Verification result:', node.verify_transaction(transaction, signature))