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gpg: export keygrips from protocol

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This commit is contained in:
Roman Zeyde
2016-10-17 22:57:31 +03:00
parent 446ec99bf4
commit ae381a38e5
1 changed files with 9 additions and 6 deletions
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15
trezor_agent/gpg/protocol.py
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@@ -99,7 +99,8 @@ def _compute_keygrip(params):
return hashlib.sha1(b''.join(parts)).digest()
def _keygrip_nist256(vk):
def keygrip_nist256(vk):
"""Compute keygrip for NIST256 curve public keys."""
curve = vk.curve.curve
gen = vk.curve.generator
g = (4 << 512) | (gen.x() << 256) | gen.y()
@@ -116,7 +117,8 @@ def _keygrip_nist256(vk):
])
def _keygrip_ed25519(vk):
def keygrip_ed25519(vk):
"""Compute keygrip for Ed25519 public keys."""
# pylint: disable=line-too-long
return _compute_keygrip([
['p', util.num2bytes(0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFED, size=32)], # nopep8
@@ -128,7 +130,8 @@ def _keygrip_ed25519(vk):
])
def _keygrip_curve25519(vk):
def keygrip_curve25519(vk):
"""Compute keygrip for Curve25519 public keys."""
# pylint: disable=line-too-long
return _compute_keygrip([
['p', util.num2bytes(0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFED, size=32)], # nopep8
@@ -146,19 +149,19 @@ SUPPORTED_CURVES = {
'oid': b'\x2A\x86\x48\xCE\x3D\x03\x01\x07',
'algo_id': 19,
'serialize': _serialize_nist256,
'keygrip': _keygrip_nist256,
'keygrip': keygrip_nist256,
},
formats.CURVE_ED25519: {
'oid': b'\x2B\x06\x01\x04\x01\xDA\x47\x0F\x01',
'algo_id': 22,
'serialize': _serialize_ed25519,
'keygrip': _keygrip_ed25519,
'keygrip': keygrip_ed25519,
},
formats.ECDH_CURVE25519: {
'oid': b'\x2B\x06\x01\x04\x01\x97\x55\x01\x05\x01',
'algo_id': 18,
'serialize': _serialize_ed25519,
'keygrip': _keygrip_curve25519,
'keygrip': keygrip_curve25519,
},
}