Prefer X25519 for legacy WSS full handshakes

Prioritize X25519 while retaining enabled curve fallbacks and log the negotiated ECDHE group. Extend ABI checks, crypto benchmarks and backend group probes, and document the updated APP package.
2026-09-16 15:32:22 +08:00
parent 3a0714c735
commit 551a7bb1e6
10 changed files with 189 additions and 26 deletions
@@ -0,0 +1,40 @@
+"""Probe TLS 1.2 full-handshake group negotiation with the firmware root CA."""
+import json
+from pathlib import Path
+import re
+import subprocess
+
+root = Path(__file__).resolve().parents[1]
+source = (root / 'ql-application/threadx/interface/custom_app/talkingq_root_ca.c').read_text()
+pem = ''.join(json.loads('"' + value + '"') for value in re.findall(r'"(.*?)"', source)
+              if 'CERTIFICATE' in value or value.endswith(r'\n'))
+output = root / 'artifacts/wss/full-handshake'
+output.mkdir(parents=True, exist_ok=True)
+ca = output / 'compiled-root.pem'
+ca.write_text(pem)
+openssl = Path('C:/Program Files/Git/usr/bin/openssl.exe')
+groups = {
+    'sdk_order': 'P-521:brainpoolP512r1:P-384:brainpoolP384r1:P-256:brainpoolP256r1:P-224:secp224k1:P-192:secp192k1:X25519:X448',
+    'x25519_first': 'X25519:P-256:P-384:P-521',
+    'p256_first': 'P-256:X25519:P-384:P-521',
+}
+firmware = (root / 'ql-application/threadx/interface/custom_app/lib/librws/src/rws_socketpriv.c').read_bytes().decode('latin1')
+array = re.search(r'rws_tls_preferred_curves\[\]\s*=\s*\{(.*?)\}', firmware, re.S).group(1)
+names = {'CURVE25519': 'X25519', 'CURVE448': 'X448',
+         'SECP256R1': 'P-256', 'SECP384R1': 'P-384', 'SECP521R1': 'P-521',
+         'SECP224R1': 'P-224', 'SECP192R1': 'P-192',
+         'SECP224K1': 'secp224k1', 'SECP192K1': 'secp192k1',
+         'BP512R1': 'brainpoolP512r1', 'BP384R1': 'brainpoolP384r1', 'BP256R1': 'brainpoolP256r1'}
+groups['firmware_policy'] = ':'.join(names[name] for name in re.findall(r'MBEDTLS_ECP_DP_(\w+)', array) if name != 'NONE')
+report = {}
+for name, group_list in groups.items():
+    result = subprocess.run([str(openssl), 's_client', '-connect', 'banban.api.talkingq.com:443',
+                             '-servername', 'banban.api.talkingq.com', '-verify_hostname', 'banban.api.talkingq.com',
+                             '-verify_return_error', '-CAfile', str(ca), '-no-CApath', '-no-CAstore',
+                             '-tls1_2', '-no_ticket', '-groups', group_list, '-brief'],
+                            input='', text=True, capture_output=True, timeout=20)
+    text = result.stdout + result.stderr
+    report[name] = {'groups': group_list, 'returncode': result.returncode, 'output': text}
+    print(name + ':\n' + text, flush=True)
+    assert result.returncode == 0 and 'Verification: OK' in text, name
+(output / 'group-probe.json').write_text(json.dumps(report, indent=2))