From 32af2c9dc2d88df12b02409a023d647ee1de4c8a Mon Sep 17 00:00:00 2001
From: dhruv <856960+dhruv@users.noreply.github.com>
Date: Fri, 7 Oct 2022 11:59:24 -0700
Subject: Add BIP324

---
 bip-0324/run_test_vectors.py | 53 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 bip-0324/run_test_vectors.py

(limited to 'bip-0324/run_test_vectors.py')

diff --git a/bip-0324/run_test_vectors.py b/bip-0324/run_test_vectors.py
new file mode 100644
index 0000000..ada7371
--- /dev/null
+++ b/bip-0324/run_test_vectors.py
@@ -0,0 +1,53 @@
+import csv
+import os
+import sys
+
+import reference
+
+with open(os.path.join(sys.path[0], 'packet_encoding_test_vectors.csv'), newline='') as csvfile:
+    reader = csv.reader(csvfile)
+    reader.__next__()
+    for row in reader:
+        in_idx, in_priv_ours, in_ellswift_ours, in_ellswift_theirs, in_initiating, in_content, in_multiply, in_aad, in_ignore, mid_x_ours, mid_x_shared, mid_shared_secret, mid_initiator_l, mid_initiator_p, mid_responder_l, mid_responder_p, mid_send_garbage_terminator, mid_recv_garbage_terminator, mid_session_id, out_ciphertext, out_ciphertext_endswith = row
+
+        assert mid_x_ours == (int.from_bytes(bytes.fromhex(in_priv_ours), 'big') * reference.SECP256K1_G).x.to_bytes().hex()
+        assert mid_x_shared == reference.ellswift_ecdh_xonly(bytes.fromhex(in_ellswift_theirs), bytes.fromhex(in_priv_ours)).hex()
+        assert mid_shared_secret == reference.v2_ecdh(bytes.fromhex(in_priv_ours), bytes.fromhex(in_ellswift_theirs), bytes.fromhex(in_ellswift_ours), int(in_initiating)).hex()
+
+        peer = reference.initialize_v2_transport(bytes.fromhex(mid_shared_secret), int(in_initiating))
+        assert mid_initiator_l == peer['initiator_L'].hex()
+        assert mid_initiator_p == peer['initiator_P'].hex()
+        assert mid_responder_l == peer['responder_L'].hex()
+        assert mid_responder_p == peer['responder_P'].hex()
+        assert mid_send_garbage_terminator == peer['send_garbage_terminator'].hex()
+        assert mid_recv_garbage_terminator == peer['recv_garbage_terminator'].hex()
+        assert mid_session_id == peer['session_id'].hex()
+        for _ in range(int(in_idx)):
+            reference.v2_enc_packet(peer, b"")
+        ciphertext = reference.v2_enc_packet(peer, bytes.fromhex(in_content) * int(in_multiply), bytes.fromhex(in_aad), int(in_ignore))
+        if len(out_ciphertext):
+            assert out_ciphertext == ciphertext.hex()
+        if len(out_ciphertext_endswith):
+            assert ciphertext.hex().endswith(out_ciphertext_endswith)
+
+with open(os.path.join(sys.path[0], 'xswiftec_test_vectors.csv'), newline='') as csvfile:
+    reader = csv.reader(csvfile)
+    reader.__next__()
+    for row in reader:
+        u = reference.FE.from_bytes(bytes.fromhex(row[0]))
+        x = reference.FE.from_bytes(bytes.fromhex(row[1]))
+        for case in range(8):
+            ret = reference.xswiftec_inv(x, u, case)
+            if ret is None:
+                assert row[2 + case] == ""
+            else:
+                assert row[2 + case] == ret.to_bytes().hex()
+                assert reference.xswiftec(u, ret) == x
+
+with open(os.path.join(sys.path[0], 'xelligatorswift_test_vectors.csv'), newline='') as csvfile:
+    reader = csv.reader(csvfile)
+    reader.__next__()
+    for row in reader:
+        ellswift = bytes.fromhex(row[0])
+        x = bytes.fromhex(row[1])
+        assert reference.ellswift_ecdh_xonly(ellswift, (1).to_bytes(32, 'big')) == x
-- 
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