def encode(ecdsa_key: object, **kwargs):
alg_id = SequenceOf()
alg_id.setComponentByPosition(
0, ObjectIdentifier([1, 2, 840, 10045, 2, 1]))
alg_id.setComponentByPosition(
1,
ObjectIdentifier(
ber_decoder.decode(b'\x06' +
bytes([len(ecdsa_key.G.curve.oid)]) +
ecdsa_key.G.curve.oid)[0].asTuple()))
zero_fill = math.ceil(ecdsa_key.G.curve.q.bit_length() / 8)
params_seq = Sequence()
params_seq.setComponentByPosition(0, Integer(1))
params_seq.setComponentByPosition(
1, OctetString(Bytes(ecdsa_key.d).zfill(zero_fill)))
params_seq.setComponentByPosition(
2, PublicPoint(ecdsa_key.format_public_point()))
param_oct = OctetString(encoder.encode(params_seq))
top_seq = Sequence()
top_seq.setComponentByPosition(0, Integer(0))
top_seq.setComponentByPosition(1, alg_id)
top_seq.setComponentByPosition(2, param_oct)
encoded = encoder.encode(top_seq)
encoded = PKCS8ECDSAPrivateKey.transport_encode(encoded, **kwargs)
return encoded
def encode(eddsa_key: object, **kwargs):
alg_id = SequenceOf()
alg_id.setComponentByPosition(0, ObjectIdentifier(eddsa_key.curve.oid))
seq = Sequence()
seq.setComponentByPosition(0, alg_id)
seq.setComponentByPosition(1,
X509EdDSASubjectPublicKey.encode(eddsa_key))
encoded = encoder.encode(seq)
return X509EdDSAPublicKey.transport_encode(encoded, **kwargs)
def encode(eddsa_key: object, **kwargs):
alg_id = SequenceOf()
alg_id.setComponentByPosition(0, ObjectIdentifier(eddsa_key.curve.oid))
zero_fill = math.ceil(eddsa_key.d.int().bit_length() / 8)
priv_key = OctetString(
encoder.encode(
OctetString(Bytes.wrap(eddsa_key.d).zfill(zero_fill))))
top_seq = Sequence()
top_seq.setComponentByPosition(0, Integer(0))
top_seq.setComponentByPosition(1, alg_id)
top_seq.setComponentByPosition(2, priv_key)
encoded = encoder.encode(top_seq)
encoded = PKCS8EdDSAPrivateKey.transport_encode(encoded, **kwargs)
return encoded
def encode(dh_key: object, **kwargs):
dh_params = SequenceOf()
dh_params.setComponentByPosition(0, Integer(dh_key.p))
dh_params.setComponentByPosition(1, Integer(dh_key.g))
alg_id = Sequence()
alg_id.setComponentByPosition(0, ObjectIdentifier([1, 2, 840, 113549, 1, 3, 1]))
alg_id.setComponentByPosition(1, dh_params)
param_oct = OctetString(encoder.encode(Integer(dh_key.key)))
top_seq = Sequence()
top_seq.setComponentByPosition(0, Integer(0))
top_seq.setComponentByPosition(1, alg_id)
top_seq.setComponentByPosition(2, param_oct)
encoded = encoder.encode(top_seq)
encoded = PKCS8DiffieHellmanPrivateKey.transport_encode(encoded, **kwargs)
return encoded
def encode(dsa_key: object, **kwargs):
dss_params = SequenceOf()
dss_params.setComponentByPosition(0, Integer(dsa_key.p))
dss_params.setComponentByPosition(1, Integer(dsa_key.q))
dss_params.setComponentByPosition(2, Integer(dsa_key.g))
alg_id = Sequence()
alg_id.setComponentByPosition(
0, ObjectIdentifier([1, 2, 840, 10040, 4, 1]))
alg_id.setComponentByPosition(1, dss_params)
param_oct = OctetString(encoder.encode(Integer(dsa_key.x)))
top_seq = Sequence()
top_seq.setComponentByPosition(0, Integer(0))
top_seq.setComponentByPosition(1, alg_id)
top_seq.setComponentByPosition(2, param_oct)
encoded = encoder.encode(top_seq)
encoded = PKCS8DSAPrivateKey.transport_encode(encoded, **kwargs)
return encoded