From 8a023f3b25a3ae8b214291583eb6eabe53d73222 Mon Sep 17 00:00:00 2001
From: mjalalzai <33738574+MForensic@users.noreply.github.com>
Date: Mon, 28 Aug 2023 11:25:52 -0700
Subject: [PATCH] Aggregation cost

---
 scripts/authenticator_cost.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/scripts/authenticator_cost.py b/scripts/authenticator_cost.py
index 81edb2f..de475f2 100644
--- a/scripts/authenticator_cost.py
+++ b/scripts/authenticator_cost.py
@@ -18,3 +18,26 @@ def verify_signatures(committee_size, depth):
     end_time = time.time()
     elapsed_time = end_time - start_time
     return elapsed_time
+
+
+
+def aggregate_signatures(committee_size):
+    # Simulate aggregating 3 * committee_size signatures
+    start_time = time.time()
+
+    # ECDSA key generation
+    private_keys = [ecdsa.SigningKey.generate() for _ in range(3 * committee_size)]
+   # public_keys = [private_key.get_verifying_key() for private_key in private_keys]
+
+    # Simulate signature aggregation
+    shared_message = b"Shared message to be signed"
+    signatures = [private_key.sign(shared_message) for private_key in private_keys]
+    aggregated_signature = sum(signatures, ecdsa.util.numbertheory.ordercurve.order)
+
+    # Verify aggregated signature against the shared message
+    public_key = ecdsa.VerifyingKey.from_public_point(aggregated_signature, curve=ecdsa.SECP256k1)
+    assert public_key.verify(aggregated_signature, shared_message)
+
+    end_time = time.time()
+    elapsed_time = end_time - start_time
+    return elapsed_time