py-libp2p/libp2p/crypto/serialization.py
2019-09-24 10:06:35 -07:00

35 lines
1.3 KiB
Python

from libp2p.crypto.ed25519 import Ed25519PrivateKey, Ed25519PublicKey
from libp2p.crypto.exceptions import MissingDeserializerError
from libp2p.crypto.keys import KeyType, PrivateKey, PublicKey
from libp2p.crypto.rsa import RSAPublicKey
from libp2p.crypto.secp256k1 import Secp256k1PrivateKey, Secp256k1PublicKey
key_type_to_public_key_deserializer = {
KeyType.Secp256k1.value: Secp256k1PublicKey.from_bytes,
KeyType.RSA.value: RSAPublicKey.from_bytes,
KeyType.Ed25519.value: Ed25519PublicKey.from_bytes,
}
key_type_to_private_key_deserializer = {
KeyType.Secp256k1.value: Secp256k1PrivateKey.from_bytes,
KeyType.Ed25519.value: Ed25519PrivateKey.from_bytes,
}
def deserialize_public_key(data: bytes) -> PublicKey:
f = PublicKey.deserialize_from_protobuf(data)
try:
deserializer = key_type_to_public_key_deserializer[f.key_type]
except KeyError:
raise MissingDeserializerError({"key_type": f.key_type, "key": "public_key"})
return deserializer(f.data)
def deserialize_private_key(data: bytes) -> PrivateKey:
f = PrivateKey.deserialize_from_protobuf(data)
try:
deserializer = key_type_to_private_key_deserializer[f.key_type]
except KeyError:
raise MissingDeserializerError({"key_type": f.key_type, "key": "private_key"})
return deserializer(f.data)