Zy Filemanager

📁 File Browser

Name	Size	Permissions	Actions
📁 __pycache__	DIR	0755	🗑️
📄 __init__.py (4,331 bytes)	4.23 KB	0644	✍️ ⬇️ 🗑️
📄 base.py (2,513 bytes)	2.45 KB	0644	✍️ ⬇️ 🗑️
📄 cryptography.py (2,425 bytes)	2.37 KB	0644	✍️ ⬇️ 🗑️
📄 dsa.py (3,564 bytes)	3.48 KB	0644	✍️ ⬇️ 🗑️
📄 ecdsa.py (3,172 bytes)	3.1 KB	0644	✍️ ⬇️ 🗑️
📄 eddsa.py (1,981 bytes)	1.93 KB	0644	✍️ ⬇️ 🗑️
📄 rsa.py (3,622 bytes)	3.54 KB	0644	✍️ ⬇️ 🗑️

📤 Upload Files

Single File

Multiple Files

ZIP Extract

ZIP file will be deleted after extraction

➕ Create New

New Folder

New File

✍️ Editing: eddsa.py

            File: /opt/hc_python/lib/python3.12/site-packages/dns/dnssecalgs/eddsa.py

            Size: 1.93 KB | 
            Last Modified: 2025-04-04 15:08:35        

from typing import Type

from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import ed448, ed25519

from dns.dnssecalgs.cryptography import CryptographyPrivateKey, CryptographyPublicKey
from dns.dnssectypes import Algorithm
from dns.rdtypes.ANY.DNSKEY import DNSKEY

class PublicEDDSA(CryptographyPublicKey):
    def verify(self, signature: bytes, data: bytes) -> None:
        self.key.verify(signature, data)

def encode_key_bytes(self) -> bytes:
        """Encode a public key per RFC 8080, section 3."""
        return self.key.public_bytes(
            encoding=serialization.Encoding.Raw, format=serialization.PublicFormat.Raw
        )

@classmethod
    def from_dnskey(cls, key: DNSKEY) -> "PublicEDDSA":
        cls._ensure_algorithm_key_combination(key)
        return cls(
            key=cls.key_cls.from_public_bytes(key.key),
        )

class PrivateEDDSA(CryptographyPrivateKey):
    public_cls: Type[PublicEDDSA]

def sign(
        self,
        data: bytes,
        verify: bool = False,
        deterministic: bool = True,
    ) -> bytes:
        """Sign using a private key per RFC 8080, section 4."""
        signature = self.key.sign(data)
        if verify:
            self.public_key().verify(signature, data)
        return signature

@classmethod
    def generate(cls) -> "PrivateEDDSA":
        return cls(key=cls.key_cls.generate())

class PublicED25519(PublicEDDSA):
    key: ed25519.Ed25519PublicKey
    key_cls = ed25519.Ed25519PublicKey
    algorithm = Algorithm.ED25519

class PrivateED25519(PrivateEDDSA):
    key: ed25519.Ed25519PrivateKey
    key_cls = ed25519.Ed25519PrivateKey
    public_cls = PublicED25519

class PublicED448(PublicEDDSA):
    key: ed448.Ed448PublicKey
    key_cls = ed448.Ed448PublicKey
    algorithm = Algorithm.ED448

class PrivateED448(PrivateEDDSA):
    key: ed448.Ed448PrivateKey
    key_cls = ed448.Ed448PrivateKey
    public_cls = PublicED448

↩️ Back