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ledger: add DEBUG logging

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Roman Zeyde
2017-10-11 21:15:44 +03:00
parent 44cdeed024
commit 9998456fe0
1 changed files with 8 additions and 2 deletions
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10
libagent/device/ledger.py
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@@ -56,8 +56,10 @@ class LedgerNanoS(interface.Device):
apdu = binascii.unhexlify(apdu)
apdu += bytearray([len(path) + 1, len(path) // 4])
apdu += path
result = bytearray(self.conn.exchange(bytes(apdu)))[1:]
return _convert_public_key(curve_name, result)
log.debug('apdu: %r', apdu)
result = bytearray(self.conn.exchange(bytes(apdu)))
log.debug('result: %r', result)
return _convert_public_key(curve_name, result[1:])
def sign(self, identity, blob):
"""Sign given blob and return the signature (as bytes)."""
@@ -77,7 +79,9 @@ class LedgerNanoS(interface.Device):
apdu += bytearray([len(blob) + len(path) + 1])
apdu += bytearray([len(path) // 4]) + path
apdu += blob
log.debug('apdu: %r', apdu)
result = bytearray(self.conn.exchange(bytes(apdu)))
log.debug('result: %r', result)
if identity.curve_name == 'nist256p1':
offset = 3
length = result[offset]
@@ -106,6 +110,8 @@ class LedgerNanoS(interface.Device):
apdu += bytearray([len(pubkey) + len(path) + 1])
apdu += bytearray([len(path) // 4]) + path
apdu += pubkey
log.debug('apdu: %r', apdu)
result = bytearray(self.conn.exchange(bytes(apdu)))
log.debug('result: %r', result)
assert result[0] == 0x04
return bytes(result)