feat: add Ed25519 (EdDSA) signing support for applet v2.0

CHANGELOG.rst

@@ -2,6 +2,27 @@
 Changelog
 =========
 
+Version 1.0.5 - 2026-07-14
+------------------------------------------------------------------------------------------------
+
+Added
+^^^^^^^
+
+- Added Ed25519 (EdDSA) signing support for applet v2.0 (``KeyType.ED25519``)
+- Added ``examples/solana_transaction/`` demonstrating Solana signing and transaction building
+
+Changed
+^^^^^^^
+
+- Renamed ``BasicG1`` card class to ``Basic`` (``BasicG1`` kept as a backwards-compatible alias)
+- Padded the SIGN PIN to the spec's fixed 9-byte field and replaced SIGN magic numbers with named constants
+- Replaced hardcoded PINs in examples with a named PIN variable
+
+Fixed
+^^^^^^^
+
+- Guarded Ed25519 key handling against silently falling through to the ECDSA path (unknown key types now raise)
+
 Version 1.0.4 - 2026-04-10
 ------------------------------------------------------------------------------------------------
 

cryptnox_sdk_py/__init__.py

@@ -10,7 +10,7 @@
 from . import enums, exceptions
 from .enums import SlotIndex, Derivation, KeyType, AuthType, SeedSource, Origin
 
-__version__ = "1.0.4"
+__version__ = "1.0.5"
 
 __all__ = [
     'Card',

cryptnox_sdk_py/card/__init__.py

@@ -3,7 +3,7 @@
 Module that contains classes for various Cryptnox cards.
 """
 from .base import Base
-from .basic_g1 import BasicG1
+from .basic_g1 import Basic, BasicG1
 from .nft import Nft
 
-__all__ = ["Base", "BasicG1", "Nft"]
+__all__ = ["Base", "Basic", "BasicG1", "Nft"]

cryptnox_sdk_py/card/base.py

@@ -600,7 +600,7 @@ def set_extended_public_key(self, status: bool, puk: str) -> None:
 
     @abc.abstractmethod
     def sign(self, data: bytes, derivation: Derivation, key_type: KeyType = KeyType.K1,
-             path: str = "", pin: str = "", filter_eos: bool = False) -> bytes:
+             path: str = "", pin: str = "") -> bytes:
         """
         Sign the message using given derivation.
 
@@ -617,9 +617,6 @@ def sign(self, data: bytes, derivation: Derivation, key_type: KeyType = KeyType.
         :type path: str, optional
         :param pin: PIN code of the card
         :type pin: str, optional
-        :param bool filter_eos: Filter signature so it is valid for EOS network,
-                                might take longer. Defaults to False
-        :type filter_eos: str, optional
 
         :return: The signature generated by the card in DER common format.
         :rtype: bytes