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trezor-firmware/common/defs/webauthn/gen.py

70 lines
1.8 KiB
Python
Executable File

#!/usr/bin/env python3
import json
import sys
from glob import glob
from hashlib import sha256
try:
opt = sys.argv[1]
except IndexError:
print("Usage: gen.py [core|mcu|check])")
sys.exit(1)
def c_bytes(h):
return "{ " + ", ".join(["0x%02x" % x for x in h]) + " }"
def gen_core(data):
print("_knownapps = {")
print(" # U2F")
for d in data:
if "u2f" in d:
url, label = d["u2f"], d["label"]
print(' "%s": {"label": "%s", "use_sign_count": True},' % (url, label))
print(" # WebAuthn")
for d in data:
if "webauthn" in d:
origin, label, use_sign_count = (
d["webauthn"],
d["label"],
d.get("use_sign_count", None),
)
if use_sign_count is None:
print(' "%s": {"label": "%s"},' % (origin, label))
else:
print(
' "%s": {"label": "%s", "use_sign_count": %s},'
% (origin, label, use_sign_count)
)
print("}")
def gen_mcu(data):
for d in data:
if "u2f" in d:
url, label = d["u2f"], d["label"]
h = sha256(url.encode()).digest()
print(
'\t{\n\t\t// U2F: %s\n\t\t%s,\n\t\t"%s"\n\t},'
% (url, c_bytes(h), label)
)
if "webauthn" in d:
origin, label = d["webauthn"], d["label"]
h = sha256(origin.encode()).digest()
print(
'\t{\n\t\t// WebAuthn: %s\n\t\t%s,\n\t\t"%s"\n\t},'
% (origin, c_bytes(h), label)
)
data = []
for fn in sorted(glob("apps/*.json")):
d = json.load(open(fn, "rt"))
data.append(d)
if opt == "core":
gen_core(data)
elif opt == "mcu":
gen_mcu(data)