commit d66e8da88feaaec4875a3845fe3ef03bc79d1f3c Author: Damian Johnson atagar@torproject.org Date: Thu Oct 3 12:53:07 2019 -0700

Drop cryptography usage from _public_key_from_address()

The following converts bytes to a key, then key back into bytes...

return Ed25519PublicKey.from_public_bytes(pubkey).public_bytes( encoding = serialization.Encoding.Raw, format = serialization.PublicFormat.Raw )

The end result is the same as simply returning 'pubkey' so dropping the added complexity. --- stem/descriptor/hidden_service.py | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/stem/descriptor/hidden_service.py b/stem/descriptor/hidden_service.py index bf11c685..e162079b 100644 --- a/stem/descriptor/hidden_service.py +++ b/stem/descriptor/hidden_service.py @@ -564,7 +564,7 @@ class HiddenServiceDescriptorV3(BaseHiddenServiceDescriptor): blinded_key = self.signing_cert.signing_key()

if not blinded_key: - raise ValueError('No signing key extension present') + raise ValueError('No signing key is present')

identity_public_key = HiddenServiceDescriptorV3._public_key_from_address(onion_address)

@@ -595,9 +595,6 @@ class HiddenServiceDescriptorV3(BaseHiddenServiceDescriptor): if not stem.util.tor_tools.is_valid_hidden_service_address(onion_address, version = 3): raise ValueError("'%s.onion' isn't a valid hidden service v3 address" % onion_address)

- from cryptography.hazmat.primitives import serialization - from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PublicKey - # onion_address = base32(PUBKEY | CHECKSUM | VERSION) + '.onion' # CHECKSUM = H('.onion checksum' | PUBKEY | VERSION)[:2]

@@ -615,10 +612,7 @@ class HiddenServiceDescriptorV3(BaseHiddenServiceDescriptor): if (checksum != my_checksum): raise ValueError('Bad checksum (expected %s but was %s)' % (binascii.hexlify(checksum), binascii.hexlify(my_checksum)))

- return Ed25519PublicKey.from_public_bytes(pubkey).public_bytes( - encoding = serialization.Encoding.Raw, - format = serialization.PublicFormat.Raw - ) + return pubkey

# TODO: drop this alias in stem 2.x