async def live_refresh(self, view_key_private, out_key, recv_deriv,
real_out_idx, major, minor):
msg = MoneroLiveRefreshStepRequest(
out_key=out_key,
recv_deriv=recv_deriv,
real_out_idx=real_out_idx,
sub_addr_major=major,
sub_addr_minor=minor,
)
t_res = await self.trezor.live_refresh(
msg) # type: MoneroLiveRefreshStepAck
self.handle_error(t_res)
enc_key = self._compute_ki_enc_key_host(view_key_private, out_key,
t_res.salt)
decr = chacha_poly.decrypt_pack(enc_key, t_res.key_image)
ki_bin = decr[:32]
ki = crypto.decodepoint(ki_bin)
sig = [[crypto.decodeint(decr[32:64]), crypto.decodeint(decr[64:])]]
if not ring_ct.check_ring_singature(
ki_bin, ki, [crypto.decodepoint(out_key)], sig):
raise ValueError("Invalid ring sig on KI")
return ki
async def verify_ki_export(self, res, exp):
"""
Verifies key image export
:param res:
:param exp:
:return:
"""
self.assertTrue(len(res) > 0)
for idx, kie in enumerate(res):
td = exp.tds[idx]
ki = crypto.decodepoint(kie[0])
pkey = crypto.decodepoint(td.m_tx.vout[td.m_internal_output_index].target.key)
sig = [[crypto.decodeint(kie[1][0]), crypto.decodeint(kie[1][1])]]
self.assertTrue(ring_ct.check_ring_singature(kie[0], ki, [pkey], sig))
def test_key_image_signature(self):
ki = binascii.unhexlify(
b"a248206cea806a7d60ea936cdc35efdf44a189b1026c4e658f42216aec155383"
)
c0 = binascii.unhexlify(
b"032725822d2c0f37bb67f29e116dc8c64ec02c4e8c69b147f596e7dbbc899409"
)
r0 = binascii.unhexlify(
b"2e4839b81c74f5b17d842d5f15723813b5287cfbc44539c9154d9222b65d2b07"
)
pub = binascii.unhexlify(
b"346354ca120bf3210976b1f5a9cee897628f3745fb80d5525c22f8cffd78a5c7"
)
self.assertEqual(
1,
ring_ct.check_ring_singature(
ki,
crypto.decodepoint(ki),
[crypto.decodepoint(pub)],
[[crypto.decodeint(c0), crypto.decodeint(r0)]],
),
)